Slide Menu
Search Help Show/Hide Menu
Short Citation:
OCM Partners, 2023: 2022 USGS CoNED Topobathymetric Model (1885 - 2021): Northern Gulf of Mexico, https://www.fisheries.noaa.gov/inport/item/67613.

Item Identification

Title: 2022 USGS CoNED Topobathymetric Model (1885 - 2021): Northern Gulf of Mexico
Short Name: ngom2022_coned_m9562_metadata
Status: Completed
Creation Date: 2022
Publication Date: 2022-05-31
Abstract:

To support U.S. Army Corps of Engineers (USACE) storm surge modeling for the Louisiana Coastal Protection and Restoration Authority (CPRA), Lowermost Mississippi River Management Program (LMRMP), the U.S. Geological Survey (USGS) Coastal National Elevation Database (CoNED) Applications Project has created an integrated 1-meter topobathymetric digital elevation model (TBDEM) for the Northern Gulf of Mexico (NGOM)-2. High-resolution coastal topobathymetric data are required to model flooding, storms, and sea-level rise inundation hazard zones and other earth science applications, such as the development of sediment transport and storm surge models. The new TBDEM consists of the best available multi-source topographic and bathymetric elevation data for the region including neighboring islands, bays, marsh, waterways, and inlets. The NGOM-2 TBDEM integrates 286 different data sources including topographic and bathymetric data, such as lidar point clouds and acoustic surveys obtained from USGS 3D Elevation Program (3DEP), the National Oceanic and Atmospheric Administration, USACE, U.S. Department of Agriculture Natural Resources Conservation Service, Louisiana CPRA, Louisiana Department of Transportation, Lake Pontchartrain Basin Foundation, and the Texas Natural Resources Information System. The topographic and bathymetric surveys were sorted and prioritized based on survey date, accuracy, spatial distribution, and point density to develop a model based on the best available elevation and bathymetric data. Because bathymetric data are typically referenced to tidal datums, such as Mean High Water or Mean Low Water, all tidally referenced heights were transformed into orthometric heights based on the GEOID12B datum, which is normally used for mapping elevation on land using the North American Vertical Datum of 1988. The spatial horizontal resolution is 1-meter. The general location ranges from the old river control structure on the Mississippi River in the north to the Mississippi River delta in the south and extending from the Texas/Louisiana border on the west to the Alabama/Florida border on the east. The overall temporal range of the input topography and bathymetry is 1885 to 2021 with a maximum depth extending to 2,358 meters. The topography surveys are from 2002-2020. The bathymetry surveys were acquired between 1885 and 2021. The data release and all related items of information were prepared by USGS through a sub-contract with the Louisiana Coastal Protection and Restoration Authority, who was funded under Award No. GNTCP18LA0035 from the Gulf Coast Ecosystem Restoration Council (RESTORE Council). The data, statements, findings, conclusions, and recommendations are those of the author[s] and do not necessarily reflect any determinations, views, or policies of the RESTORE Council. This data release was also co-funded by the USGS Coastal and Marine Hazards and Resources Program (CMHRP) for the Northern Gulf of Mexico (NGOM2).

Purpose:

As a collaboration between the U.S. Geological Survey (USGS) Coastal and Marine Hazards and Resources Program, the USGS National Geospatial Program, and the National Oceanic and Atmospheric Administration (NOAA) National Centers for Environmental Information, the USGS Coastal National Elevation Database (CoNED) Applications Project integrates disparate light detection and ranging (lidar) and bathymetric data sources into a common three-dimensional (3D) database aligned both vertically and horizontally to a common reference system. The CoNED Project’s topobathymetric digital elevation model (TBDEM) development is focused on select regions around the United States Coast, such as the Northern Gulf of Mexico, Coastal Carolinas, Northeast, California Coast, Pacific Northwest, and the North Slope of Alaska. CoNED Project TBDEMs provide a required seamless elevation product for several science application studies, such as shoreline delineation, coastal inundation mapping, sediment-transport, sea-level rise, storm surge models, tsunami impact assessment, and to analyze the impact of various climate change scenarios on coastal regions. The raster TBDEM product, the Federal Geographic Data Committee metadata, spatially referenced metadata, data management plan, and the spatial metadata data dictionary are contained in the downloadable bundle. Spatially referenced metadata are encompassed within a geodatabase and geospatial map package that contain footprints for each of the input source areas. References: Danielson, J.J., Poppenga, S.K., Brock, J.C., Evans, G.A., Tyler, D.J., Gesch, D.B., Thatcher, C.A., and Barras, J.A. , 2016, Topobathymetric elevation model development using a new methodology-Coastal National Elevation Database: Journal of Coastal Research, SI no. 76, p. 75-89, at http://dx.doi.org/10.2112/SI76-008. Thatcher, C.A., Brock, J.C., Danielson, J.J., Poppenga, S.K., Gesch, D.B., Palaseanu-Lovejoy, M.E., Barras, J.A., Evans, G.A., and Gibbs, A.E., 2016, Creating a Coastal National Elevation Database (CoNED) for science and conservation applications: Journal of Coastal Research, SI no. 76, p. 64-74, at http://dx.doi.org/10.2112/SI76-007. Gesch, Dean B., Oimoen, Michael J., and Evans, Gayla A., 2014, Accuracy assessment of the U.S. Geological Survey National Elevation Dataset, and comparison with other large-area elevation datasets-SRTM and ASTER: U.S. Geological Survey Open-File Report 2014-1008, 10 p., at http://dx.doi.org/10.3133/ofr20141008. Sugarbaker, L.J., Constance, E.W., Heidemann, H.K., Jason, A.L., Lukas, Vicki, Saghy, D.L., and Stoker, J.M., 2014, The 3D Elevation Program initiative—A call for action: U.S. Geological Survey Circular 1399, 35 p Carswell, W.J., Jr., 2013, The 3D Elevation Program—Summary for California: U.S. Geological Survey Fact Sheet 2013–3056, 2 p., http://pubs.usgs.gov/fs/2013/3056/

Supplemental Information:

The data obtained through ScienceBase at https://www.sciencebase.gov/catalog/item/61df2301d34ed79294021f13 are considered to be the "best available" data from the USGS. For questions on distribution, please refer to the Distribution Section, Contact Information. For processing, please refer to the Data Quality Section, Processing Step, Contact Information.

Keywords

Theme Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION > DIGITAL ELEVATION/TERRAIN MODEL (DEM)
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > BATHYMETRY > COASTAL BATHYMETRY
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > OCEANS > COASTAL PROCESSES > COASTAL ELEVATION
ISO 19115 Topic Category
elevation
UNCONTROLLED
None 3D Elevation Program
None 3DEP
None Acoustic Sonar
None Bathymetric
None Bathymetry
None Coastal and Marine Hazards and Resources Program
None Coastal National Elevation Database
None Coastal Zone
None CoNED
None Digital Elevation Model
None Flood Inundation Modeling
None Hydrologic Modeling
None lidar
None Light Detection and Ranging
None Louisiana Coastal Protection and Restoration Authority (CPRA)
None Lowermost Mississippi River Management Program (LMRMP)
None National Standards for Spatial Digital Accuracy
None Topobathymetric
None U.S. Geological Survey
None USGS

Spatial Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ALABAMA
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > LOUISIANA
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MISSISSIPPI
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > TEXAS
Global Change Master Directory (GCMD) Location Keywords
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MEXICO
Global Change Master Directory (GCMD) Location Keywords
VERTICAL LOCATION > LAND SURFACE
Global Change Master Directory (GCMD) Location Keywords
VERTICAL LOCATION > SEA FLOOR
UNCONTROLLED
Geographic Names Information System County of Acadia, LA
Geographic Names Information System County of Allen, LA
Geographic Names Information System County of Amite, MS
Geographic Names Information System County of Ascension, LA
Geographic Names Information System County of Assumption, LA
Geographic Names Information System County of Avoyelles, LA
Geographic Names Information System County of Baldwin, AL
Geographic Names Information System County of Beauregard, LA
Geographic Names Information System County of Calcasieu, LA
Geographic Names Information System County of Cameron, LA
Geographic Names Information System County of Concordia, LA
Geographic Names Information System County of East Baton Rouge, LA
Geographic Names Information System County of East Feliciana, LA
Geographic Names Information System County of Escambia, FL
Geographic Names Information System County of Evangeline, LA
Geographic Names Information System County of Forrest, MS
Geographic Names Information System County of George, MS
Geographic Names Information System County of Greene, MS
Geographic Names Information System County of Hancock, MS
Geographic Names Information System County of Harrison, MS
Geographic Names Information System County of Iberia, LA
Geographic Names Information System County of Iberville, LA
Geographic Names Information System County of Jackson, MS
Geographic Names Information System County of Jasper, TX
Geographic Names Information System County of Jefferson Davis, LA
Geographic Names Information System County of Jefferson, LA
Geographic Names Information System County of Jefferson, TX
Geographic Names Information System County of Lafayette, LA
Geographic Names Information System County of Lafourche, LA
Geographic Names Information System County of Lamar, MS
Geographic Names Information System County of Livingston, LA
Geographic Names Information System County of Marion, MS
Geographic Names Information System County of Mobile, AL
Geographic Names Information System County of Newton, TX
Geographic Names Information System County of Orange, TX
Geographic Names Information System County of Orleans, LA
Geographic Names Information System County of Pearl River, MS
Geographic Names Information System County of Perry, MS
Geographic Names Information System County of Pike, MS
Geographic Names Information System County of Plaquemines, LA
Geographic Names Information System County of Pointe Coupee, LA
Geographic Names Information System County of Rapides, LA
Geographic Names Information System County of Saint Bernard, LA
Geographic Names Information System County of Saint Charles, LA
Geographic Names Information System County of Saint Helena, LA
Geographic Names Information System County of Saint James, LA
Geographic Names Information System County of Saint John the Baptist, LA
Geographic Names Information System County of Saint Landry, LA
Geographic Names Information System County of Saint Martin, LA
Geographic Names Information System County of Saint Mary, LA
Geographic Names Information System County of Saint Tammany, LA
Geographic Names Information System County of Stone, MS
Geographic Names Information System County of Tangipahoa, LA
Geographic Names Information System County of Terrebonne, LA
Geographic Names Information System County of Vermilion, LA
Geographic Names Information System County of Vernon, LA
Geographic Names Information System County of Walthall, MS
Geographic Names Information System County of Washington, LA
Geographic Names Information System County of West Baton Rouge, LA
Geographic Names Information System County of West Feliciana, LA
Geographic Names Information System County of Wilkinson, MS
U.S. Department of Commerce, 1987, Codes for the identification of the States, the District of Columbia and the outlying areas of the United States, and associated areas (Federal Information Processing Standard 5-2): Washington, D.C., National Instit AL
U.S. Department of Commerce, 1987, Codes for the identification of the States, the District of Columbia and the outlying areas of the United States, and associated areas (Federal Information Processing Standard 5-2): Washington, D.C., National Instit Alabama
U.S. Department of Commerce, 1987, Codes for the identification of the States, the District of Columbia and the outlying areas of the United States, and associated areas (Federal Information Processing Standard 5-2): Washington, D.C., National Instit FL
U.S. Department of Commerce, 1987, Codes for the identification of the States, the District of Columbia and the outlying areas of the United States, and associated areas (Federal Information Processing Standard 5-2): Washington, D.C., National Instit Florida
U.S. Department of Commerce, 1987, Codes for the identification of the States, the District of Columbia and the outlying areas of the United States, and associated areas (Federal Information Processing Standard 5-2): Washington, D.C., National Instit LA
U.S. Department of Commerce, 1987, Codes for the identification of the States, the District of Columbia and the outlying areas of the United States, and associated areas (Federal Information Processing Standard 5-2): Washington, D.C., National Instit Louisiana
U.S. Department of Commerce, 1987, Codes for the identification of the States, the District of Columbia and the outlying areas of the United States, and associated areas (Federal Information Processing Standard 5-2): Washington, D.C., National Instit Mississippi
U.S. Department of Commerce, 1987, Codes for the identification of the States, the District of Columbia and the outlying areas of the United States, and associated areas (Federal Information Processing Standard 5-2): Washington, D.C., National Instit MS
U.S. Department of Commerce, 1987, Codes for the identification of the States, the District of Columbia and the outlying areas of the United States, and associated areas (Federal Information Processing Standard 5-2): Washington, D.C., National Instit Texas
U.S. Department of Commerce, 1987, Codes for the identification of the States, the District of Columbia and the outlying areas of the United States, and associated areas (Federal Information Processing Standard 5-2): Washington, D.C., National Instit TX
U.S. Department of Commerce, 1995, Countries, dependencies, areas of special sovereignty, and their principal administrative divisions, Federal Information Processing Standard 10-4,): Washington, D.C., National Institute of Standards and Technology U.S.
U.S. Department of Commerce, 1995, Countries, dependencies, areas of special sovereignty, and their principal administrative divisions, Federal Information Processing Standard 10-4,): Washington, D.C., National Institute of Standards and Technology United States
U.S. Department of Commerce, 1995, Countries, dependencies, areas of special sovereignty, and their principal administrative divisions, Federal Information Processing Standard 10-4,): Washington, D.C., National Institute of Standards and Technology US
U.S. Department of Commerce, 1995, Countries, dependencies, areas of special sovereignty, and their principal administrative divisions, Federal Information Processing Standard 10-4,): Washington, D.C., National Institute of Standards and Technology USA

Instrument Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Instrument Keywords
LIDAR > Light Detection and Ranging

Platform Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Platform Keywords
AIRCRAFT

Physical Location

Organization: Office for Coastal Management
City: Charleston
State/Province: SC

Data Set Information

Data Set Scope Code: Data Set
Data Set Type: Elevation
Maintenance Frequency: As Needed
Data Presentation Form: Raster Digital Data Set
Entity Attribute Detail Citation:

Danielson, J.J., Tyler, D.J., Cushing, W.M., Barra, J.A., Poppenga, S.K., Beverly, S.D., and Shogib, R., 2022, Topobathymetric Model of the Northern Gulf of Mexico, 1885 to 2021: U.S. Geological Survey data release, https://doi.org/10.5066/P99JULDN.

Distribution Liability:

Although these data have been processed successfully on a computer system at the USGS, no warranty expressed or implied is made by the USGS regarding the use of the data on any other system, nor does the act of distribution constitute any such warranty. Data may have been compiled from various outside sources. Spatial information may not meet National Map Accuracy Standards. This information may be updated without notification. The USGS shall not be liable for any activity involving these data, installation, fitness of the data for a particular purpose, its use, or analyses results.

Any conclusions drawn from the analysis of this information are not the responsibility of NOAA, the Office for Coastal Management or its partners.

Data Set Credit: Please refer to the Data Quality Section, Source Citations for original source data information., Danielson, J.J. Tyler, D.J. Cushing, W.M. Barra, J.A. Poppenga, S.K. Beverly, S.D. Shogib, R.

Support Roles

Data Steward

CC ID: 1179373
Date Effective From: 2022
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Distributor

CC ID: 1179372
Date Effective From: 2022
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Metadata Contact

CC ID: 1179374
Date Effective From: 2022
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Point of Contact

CC ID: 1179375
Date Effective From: 2022
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 1179378
W° Bound: -93.9995
E° Bound: -87.5072
N° Bound: 31.1266
S° Bound: 28.6991

Extent Group 1 / Time Frame 1

CC ID: 1179377
Time Frame Type: Range
Start: 1885-01-01
End: 2021-12-31

Spatial Information

Spatial Representation

Representations Used

Grid: Yes

Reference Systems

Reference System 1

CC ID: 1179493

Coordinate Reference System

CRS Type: Vertical
EPSG Code: EPSG:5703
EPSG Name: NAVD88 height
See Full Coordinate Reference System Information

Reference System 2

CC ID: 1179494

Coordinate Reference System

CRS Type: Projected
EPSG Code: EPSG:6344
EPSG Name: NAD83(2011) / UTM zone 15N
See Full Coordinate Reference System Information

Access Information

Security Class: Unclassified
Data Access Procedure:

Data is available online for bulk and custom downloads.

Data Access Constraints:

None

Data Use Constraints:

Users should be aware that temporal changes may have occurred since this data set was collected and some parts of this data may no longer represent actual surface conditions. Users should not use this data for critical applications without a full awareness of its limitations.

Distribution Information

Distribution 1

CC ID: 1179380
Start Date: 2022-08-02
End Date: Present
Download URL: https://chs.coast.noaa.gov/htdata/raster5/elevation/CoNED_NGOM2_DEM_2022_9562
Distributor: NOAA Office for Coastal Management (NOAA/OCM) (2022 - Present)
File Name: Bulk Download
Description:

Bulk download of data files in the original coordinate system.

File Type: GeoTIFF

Distribution 2

CC ID: 1179379
Start Date: 2022-08-02
End Date: Present
Download URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=9562/details/9562
Distributor: NOAA Office for Coastal Management (NOAA/OCM) (2022 - Present)
File Name: Customized Download
Description:

Create custom data files by choosing data area, map projection, file format, etc. A new metadata will be produced to reflect your request using this record as a base.

File Type: Zip
Compression: Zip

URLs

URL 1

CC ID: 1179369
URL: https://coast.noaa.gov/
Name: NOAA's Office for Coastal Management (OCM) website
URL Type:
Online Resource
File Resource Format: HTML
Description:

Information on the NOAA Office for Coastal Management (OCM)

URL 2

CC ID: 1179370
URL: https://coast.noaa.gov/dataviewer/
Name: NOAA's Office for Coastal Management (OCM) Data Access Viewer (DAV)
URL Type:
Online Resource
File Resource Format: HTML
Description:

The Data Access Viewer (DAV) allows a user to search for and download elevation, imagery, and land cover data for the coastal U.S. and its territories. The data, hosted by the NOAA Office for Coastal Management, can be customized and requested for free download through a checkout interface. An email provides a link to the customized data, while the original data set is available through a link within the viewer.

URL 3

CC ID: 1179495
URL: https://www.usgs.gov/special-topics/coastal-national-elevation-database-applications-project
Name: USGS CoNED Applications Project
URL Type:
Online Resource
File Resource Format: HTML
Description:

Link to the USGS CoNED Applications Project.

URL 4

CC ID: 1179496
URL: https://coast.noaa.gov/htdata/raster5/elevation/CoNED_NGOM2_DEM_2022_9562/supplemental
Name: Geospatial Metadata
URL Type:
Online Resource
File Resource Format: Zip
Description:

Link to the spatial metadata data dictionary and the spatially referenced metadata in ESRI file geodatabase (gdb) and Open Geospatial Consortium (OGC) GeoPackage (gpkg) formats.

URL 5

CC ID: 1179497
URL: https://coast.noaa.gov/htdata/raster5/elevation/CoNED_NGOM2_DEM_2022_9562/supplemental/ngom2022_coned_m9562.kmz
Name: Browse Graphic
URL Type:
Browse Graphic
File Resource Format: KMZ
Description:

Link to the data set footprint.

Technical Environment

Description:

For usability, Esri ArcGIS 10.8, Photoshop, GeoCue LP360, VDatum, Global Mapper, Geospatial Data Abstraction Library (GDAL), or equivalent GIS processing software and supporting operating systems are suggested for viewing the spatial metadata.

Data Quality

Horizontal Positional Accuracy:

The horizontal accuracy for the integrated topobathymetric digital elevation model (TBDEM) was not assessed quantitatively.

Vertical Positional Accuracy:

NGOM 2 Integrated TBDEM Vertical Accuracy Assessment (GEOID12B): The NGOM 2 TBDEM vertical accuracy was assessed using multiple datasets.

The first assessment used 4,510 Real-Time Kinematic (RTK) Global Positioning System (GPS) control points compiled by Dr. Scott Hagen of Louisiana State University (LSU). These points consisted of survey efforts in five locations: 1: Big Branch, 2: Grand Bay, 3: Maurepas, 4: Pascagoula, 5: Pearl River These points are more indicative of wetland areas within the NGOM 2 TBDEM surface. The root mean square error (RMSE) of the TBDEM surface versus these LSU control points was 0.271 meters.

The second assessment used 276 National Oceanic and Atmospheric Administration (NOAA) National Geodetic Survey (NGS) Global Positioning System (GPS) on Benchmarks (GPSonBM) control points distributed mostly throughout upland or developed areas of the NGOM 2 TBDEM surface. The RMSE of the TBDEM surface versus these GPSonBM control points was 0.236 meters.

The third assessment used 2,568 RTK GPS points from the Coastwide Reference Monitoring System (CRMS). In this case, multiple elevations are taken at a given CRMS station. These elevations are taken within a 2-meter x 2-meter plot, and the elevations are intended to be reflective of the average value of the 2-meter x 2-meter plot. As such, for the purposes of this assessment, multiple elevations for a given plot were averaged and that value was used as the control point for comparison. The average of the NGOM 2 TBDEM surfaced was used within this same plot for comparison. Any CRMS elevation points with notes that justified their exclusion, such as a note indicating the elevation was taken on top of vegetative material, were excluded from the analysis. The remaining CRMS points were distributed throughout, and therefore more indicative of, coastal herbaceous wetland areas of Louisiana. The RMSE of the TBDEM surface versus these CRMS control points was 0.262 meters.

Overall, RMSE over the land and nearshore area is 0.267 meters versus a combined 7,354 LSU, GPSonBM, and CRMS control points distributed throughout the NGOM 2 study area.

Note: It is important to note that the control points used for this vertical accuracy assessment represent land elevations rather than bathymetric values. As such this vertical accuracy assessment is only reflective of the vertical accuracy of the land component in the data set. There is not sufficient data to accurately quantify the vertical accuracy of the bathymetric portion of this data set. Please refer to the bathymetric data sources for measures of vertical accuracy and uncertainty of the input source data when available.

.

Completeness Report:

Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details

Conceptual Consistency:

No formal logical accuracy tests were conducted.

Lineage

Lineage Statement:

This CoNED data set for the northern Gulf of Mexico (TX, LA, MS, AL) was provided to NOAA OCM by USGS for inclusion in the NOAA Digital Coast Data Access Viewer.

Sources

2016 USACE NCMP Topobathy Lidar: Gulf Coast (AL, FL, MS, TX)

CC ID: 1179325
Contact Type: Organization
Contact Name: USACE JALBTCX
Publish Date: 2017-01-01
Extent Type: Discrete
Extent Start Date/Time: 2016
Citation URL: https://inport.nmfs.noaa.gov/inport/item/49427
Source Contribution:

Cat Island MS to Gulf Shores, AL.

2017 25 County Alabama Lidar

CC ID: 1179260
Contact Type: Organization
Contact Name: USGS
Publish Date: 2020-01-01
Extent Type: Discrete
Extent Start Date/Time: 2017
Citation URL: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/
Source Contribution:

Covers large portion of Southern, AL, 2017 QL2 Lidar. Contains Baldwin County with NGOM 2 boundary.

2018 USACE NCMP Topobathy Lidar: Gulf Coast (AL, MS)

CC ID: 1179326
Contact Type: Organization
Contact Name: USACE JALBTCX
Publish Date: 2018-01-01
Extent Type: Discrete
Extent Start Date/Time: 2018
Citation URL: https://inport.nmfs.noaa.gov/inport/item/55844
Source Contribution:

Cat Island MS to Gulf Shores, AL.

2019 Atchafalaya River Survey

CC ID: 1179257
Contact Type: Organization
Contact Name: USACE New Orleans District
Publish Date: 2020-01-01
Extent Type: Discrete
Extent Start Date/Time: 2019
Citation URL: https://www.mvn.usace.army.mil/Missions/Navigation/Channel-Surveys/
Source Contribution:

Atchafalaya River bank to bank survey

2019_usace_mississippi_auxiliary_entrance_channel

CC ID: 1179258
Contact Type: Organization
Contact Name: USACE
Publish Date: 2019-01-01
Extent Type: Discrete
Extent Start Date/Time: 2019
Citation URL: https://www.mvn.usace.army.mil/Missions/Navigation/Channel-Surveys/
Source Contribution:

Point Breeze, Mississippi River Chanel

3DEP_1/3AS_DEM

CC ID: 1179333
Contact Type: Organization
Contact Name: USGS
Publish Date: 2021-01-01
Extent Type: Range
Extent Start Date/Time: 1999
Extent End Date/Time: 2021
Citation URL: https://nationalmap.gov/
Source Contribution:

1/3 Arc-Second Elevation Southern US

3DEP_1/9AS_DEM

CC ID: 1179334
Contact Type: Organization
Contact Name: USGS
Publish Date: 2013-01-01
Extent Type: Range
Extent Start Date/Time: 1999
Extent End Date/Time: 2013
Citation URL: https://nationalmap.gov/
Source Contribution:

1/3 Arc-Second Elevation Southern US

3DEP_Co-Op_South_Central_MS

CC ID: 1179331
Contact Type: Organization
Contact Name: USGS
Publish Date: 2015-01-01
Extent Type: Discrete
Extent Start Date/Time: 2015
Citation URL: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/
Source Contribution:

Magnolia, MS

Amite River Basin

CC ID: 1179297
Contact Type: Organization
Contact Name: USGS/LA DOTD
Publish Date: 2019-01-01
Extent Type: Discrete
Extent Start Date/Time: 2018
Citation URL: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/
Source Contribution:

Amite River Basin Mississippi and Louisiana Defined by HUC8

BA-0143 Caminada Headlands Beach and Dune Restoration Increment 2: 2017 Bathymetric Survey

CC ID: 1179280
Contact Type: Organization
Contact Name: LA CPRA
Publish Date: 2018-01-01
Extent Type: Discrete
Extent Start Date/Time: 2018
Citation URL: https://cims.coastal.louisiana.gov/Viewer/BathyTopoData/BA-0143/raw/
Source Contribution:

BA-0143 Elmer's Island east to Caminada Pass, LA.

BA-0145 Caminada Headland Beach and Dune Restoration BA-0045

CC ID: 1179281
Contact Type: Organization
Contact Name: LA CPRA
Publish Date: 2017-01-01
Extent Type: Discrete
Extent Start Date/Time: 2017
Citation URL: https://cims.coastal.louisiana.gov/Viewer/BathyTopoData/BA-0045/raw/
Source Contribution:

BA-045 Belle Pass east mouth of Bayou Lafourche east to Elmer's Island, LA

BA-0153 Mid-Barataria Sediment Diversion Bathymetry Survey

CC ID: 1179320
Contact Type: Organization
Contact Name: LA CPRA
Publish Date: 2013-01-01
Extent Type: Discrete
Extent Start Date/Time: 2013
Citation URL: https://cims.coastal.louisiana.gov/Viewer/BathyTopoData/BA-0153/raw/
Source Contribution:

Mississippi River immediately adjacent to BA-0153 Mid-Barataria diversion channel

BA-0197 West Grand Terre Beach Nourishment and Stabilization - 2017 Bathymetric Survey

CC ID: 1179358
Contact Type: Organization
Contact Name: LA CPRA
Publish Date: 2017-01-01
Extent Type: Discrete
Extent Start Date/Time: 2017
Citation URL: https://cims.coastal.louisiana.gov/Viewer/BathyTopoData/BA-0197/raw/
Source Contribution:

West Grand Terre Island. LA

BA-0198 Grand Isle and Vicinity - 2016 Beach and Dune Repair Single Beam Bathymetry Survey

CC ID: 1179292
Contact Type: Organization
Contact Name: LA CPRA
Publish Date: 2020-01-01
Extent Type: Discrete
Extent Start Date/Time: 2020
Citation URL: https://cims.coastal.louisiana.gov/Viewer/BathyTopoData/BA-0198/raw/
Source Contribution:

Grand Isle, LA

BA-0202 Queen Bess Island Restoration Project Bathymetry Survey

CC ID: 1179342
Contact Type: Organization
Contact Name: LA CPRA
Publish Date: 2017-01-01
Extent Type: Discrete
Extent Start Date/Time: 2017
Citation URL: https://cims.coastal.louisiana.gov/Viewer/BathyTopoData/BA-0202/raw/
Source Contribution:

Queen Bess Island Southeastern Barataria Bay, LA

BA-0210 Grand Isle & Vicinity Breakwater Project Bathymetry Survey

CC ID: 1179357
Contact Type: Organization
Contact Name: LA CPRA
Publish Date: 2020-01-01
Extent Type: Discrete
Extent Start Date/Time: 2020
Citation URL: https://cims.coastal.louisiana.gov/Viewer/BathyTopoData/BA-0210/raw/
Source Contribution:

West Isle Grand Beach, LA

Barataria Islands Bathymetry

CC ID: 1179264
Contact Type: Organization
Contact Name: LA CPRA
Publish Date: 2017-01-01
Extent Type: Discrete
Extent Start Date/Time: 2017
Citation URL: https://cims.coastal.louisiana.gov/Viewer/Map.aspx?guid=7d31c01d-782a-4418-b94b-8cc4442eca2d
Source Contribution:

Eastern Barataria Barrier Islands

Biloxi, Mississippi Coastal Digital Elevation Model

CC ID: 1179276
Contact Type: Organization
Contact Name: NOAA/NCEI
Publish Date: 2007-01-01
Extent Type: Discrete
Extent Start Date/Time: 2007
Citation URL: https://www.ngdc.noaa.gov/mgg/coastal/coastal.html
Source Contribution:

Biloxi, MS, Mississippi Sound

Chandeleur Islands Topobathy

CC ID: 1179301
Contact Type: Organization
Contact Name: USGS
Publish Date: 2015-01-01
Extent Type: Discrete
Extent Start Date/Time: 2015
Source Contribution:

Chandeleur Islands

Coastal Bathymetry Data Collected in 2016 nearshore from West Ship Island to Horn Island, Gulf Islands National Seashore, Mississippi

CC ID: 1179344
Contact Type: Organization
Contact Name: USGS/USACE
Publish Date: 2017-01-01
Extent Type: Discrete
Extent Start Date/Time: 2016
Citation URL: https://data.usgs.gov/datacatalog/data/USGS:8b843480-b64c-4501-b288-5ce168b16308
Source Contribution:

Ship and Horn Islands, MS/AL

Continuously Updated Digital Elevation Model (CUDEM - 10m)

CC ID: 1179361
Contact Type: Organization
Contact Name: NOAA
Publish Date: 2019-01-01
Extent Type: Range
Extent Start Date/Time: 1851
Extent End Date/Time: 2019
Citation URL: https://chs.coast.noaa.gov/htdata/raster2/elevation/NCEI_third_Topobathy_2014_8580/
Source Contribution:

Varies

Continuously Updated Digital Elevation Model (CUDEM - 3m)

CC ID: 1179360
Contact Type: Organization
Contact Name: NOAA
Publish Date: 2019-01-01
Extent Type: Range
Extent Start Date/Time: 1851
Extent End Date/Time: 2019
Citation URL: https://chs.coast.noaa.gov/htdata/raster2/elevation/NCEI_ninth_Topobathy_2014_8483/
Source Contribution:

Varies

eHydro Baptiste_Colette_LA

CC ID: 1179283
Contact Type: Organization
Contact Name: USACE
Publish Date: 2020-01-01
Extent Type: Discrete
Extent Start Date/Time: 2020
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Baptiste Collette Pass Mississippi River

eHydro Barataria Barataria_Waterway / Channel

CC ID: 1179265
Contact Type: Organization
Contact Name: USACE
Publish Date: 2019-01-01
Extent Type: Discrete
Extent Start Date/Time: 2019
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Barataria Waterway

eHydro bay_st_louis_ms

CC ID: 1179266
Contact Type: Organization
Contact Name: USACE
Publish Date: 2019-01-01
Extent Type: Discrete
Extent Start Date/Time: 2019
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

St Louis Bay, Bryan Bayou, Mississippi Sound

eHydro bayou_black_20200506_cl

CC ID: 1179303
Contact Type: Organization
Contact Name: USACE
Publish Date: 2020-01-01
Extent Type: Discrete
Extent Start Date/Time: 2020
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Bayou Black

eHydro Bayou_boeuf_giww_west_la_cls

CC ID: 1179267
Contact Type: Organization
Contact Name: USACE
Publish Date: 2019-01-01
Extent Type: Discrete
Extent Start Date/Time: 2019
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Bayou Boeuf

eHydro bayou_bonfuca_lacombe_segnette

CC ID: 1179304
Contact Type: Organization
Contact Name: USACE
Publish Date: 2020-01-01
Extent Type: Discrete
Extent Start Date/Time: 2020
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Bayous Bonfuca, Lacombe, and Segnette

eHydro Bayou_Chene_Black_Boeuf_LA

CC ID: 1179268
Contact Type: Organization
Contact Name: USACE
Publish Date: 2019-01-01
Extent Type: Discrete
Extent Start Date/Time: 2019
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Bayou Boeuf to GIWW intersection with Bayou Chene and Bayou Black.

eHydro bayou_labatre_coden_al

CC ID: 1179269
Contact Type: Organization
Contact Name: USACE
Publish Date: 2019-01-01
Extent Type: Discrete
Extent Start Date/Time: 2019
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Bayou la Batre, Coden, AL

eHydro Bayou_Lafourche_LA

CC ID: 1179270
Contact Type: Organization
Contact Name: USACE
Publish Date: 2019-01-01
Extent Type: Discrete
Extent Start Date/Time: 2019
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Bayou Lafourche

eHydro Bayou_Rigaud_LA

CC ID: 1179271
Contact Type: Organization
Contact Name: USACE
Publish Date: 2019-01-01
Extent Type: Discrete
Extent Start Date/Time: 2019
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Bayou Rigaud

eHydro Bayou_Schaffer_la_cl

CC ID: 1179272
Contact Type: Organization
Contact Name: USACE
Publish Date: 2018-01-01
Extent Type: Discrete
Extent Start Date/Time: 2018
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Bayou Schaffer

eHydro bboeuf_mcdocks_bbay

CC ID: 1179273
Contact Type: Organization
Contact Name: USACE
Publish Date: 2019-01-01
Extent Type: Discrete
Extent Start Date/Time: 2019
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Bayou Boeuf

eHydro biloxi_back_bay_channels

CC ID: 1179277
Contact Type: Organization
Contact Name: USACE
Publish Date: 2019-01-01
Extent Type: Discrete
Extent Start Date/Time: 2019
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Back Bay of Biloxi

eHydro bon_secour_river_al

CC ID: 1179278
Contact Type: Organization
Contact Name: USACE
Publish Date: 2020-01-01
Extent Type: Discrete
Extent Start Date/Time: 2020
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Bon Secour River

eHydro Calcasieu_Ship_Channel

CC ID: 1179279
Contact Type: Organization
Contact Name: USACE
Publish Date: 2019-01-01
Extent Type: Discrete
Extent Start Date/Time: 2019
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Calcasieu River

eHydro fowl_river_al

CC ID: 1179288
Contact Type: Organization
Contact Name: USACE
Publish Date: 2019-01-01
Extent Type: Discrete
Extent Start Date/Time: 2019
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

East Fowl River

eHydro Fresh_Water_Bayou

CC ID: 1179284
Contact Type: Organization
Contact Name: USACE
Publish Date: 2018-01-01
Extent Type: Discrete
Extent Start Date/Time: 2018
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Fresh water Bayou

eHydro GIWW_IHNC

CC ID: 1179290
Contact Type: Organization
Contact Name: USACE
Publish Date: 2018-01-01
Extent Type: Discrete
Extent Start Date/Time: 2018
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Gulf Intracoastal Waterway, New Orleans

eHydro GIWW_Port_Author_Bolivar

CC ID: 1179285
Contact Type: Organization
Contact Name: USACE
Publish Date: 2019-01-01
Extent Type: Discrete
Extent Start Date/Time: 2019
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Port Arthur to Port Bolivar

eHydro gulfport_sound_channels_ms

CC ID: 1179293
Contact Type: Organization
Contact Name: USACE
Publish Date: 2019-01-01
Extent Type: Discrete
Extent Start Date/Time: 2019
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Gulfport Sound Channels

eHydro Houma Ship Channel

CC ID: 1179294
Contact Type: Organization
Contact Name: USACE
Publish Date: 2019-01-01
Extent Type: Discrete
Extent Start Date/Time: 2019
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Houma Navigation Channel

eHydro LA Barataria Houma

CC ID: 1179299
Contact Type: Organization
Contact Name: USACE
Publish Date: 2019-01-01
Extent Type: Discrete
Extent Start Date/Time: 2019
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Gulf Intracoastal Waterway from Houma to New Orleans, LA

eHydro Lake Maurepas and Pontchartrain

CC ID: 1179314
Contact Type: Organization
Contact Name: USACE
Publish Date: 2020-01-01
Extent Type: Discrete
Extent Start Date/Time: 2020
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Lake Maurepas, Lake Pontchartrain

eHydro Lower_Atchaf_Atchaf_Bay_LA

CC ID: 1179316
Contact Type: Organization
Contact Name: USACE
Publish Date: 2020-01-01
Extent Type: Discrete
Extent Start Date/Time: 2020
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Atchafalaya River - lower bay channel

eHydro Mermentau_River_LA

CC ID: 1179318
Contact Type: Organization
Contact Name: USACE
Publish Date: 2018-01-01
Extent Type: Discrete
Extent Start Date/Time: 2018
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Mermentau River - lower river

eHydro Mississippi_Passes

CC ID: 1179286
Contact Type: Organization
Contact Name: USACE
Publish Date: 2020-01-01
Extent Type: Discrete
Extent Start Date/Time: 2020
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Mississippi Passes

eHydro mobile_river_bay_channel_al

CC ID: 1179323
Contact Type: Organization
Contact Name: USACE
Publish Date: 2020-01-01
Extent Type: Discrete
Extent Start Date/Time: 2020
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Mobile upper bay channel

eHydro mr_tiger_pass_la

CC ID: 1179309
Contact Type: Organization
Contact Name: USACE
Publish Date: 2019-01-01
Extent Type: Discrete
Extent Start Date/Time: 2019
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Tiger Pass, Venice

eHydro pascagoula_river_channel_ms

CC ID: 1179338
Contact Type: Organization
Contact Name: USACE
Publish Date: 2019-01-01
Extent Type: Discrete
Extent Start Date/Time: 2019
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Pascagoula River Channel.

eHydro reshwater_bayou_to_GIWW_vermilion_river

CC ID: 1179289
Contact Type: Organization
Contact Name: USACE
Publish Date: 2018-01-01
Extent Type: Discrete
Extent Start Date/Time: 2017
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Fresh water Bayou

eHydro Sabine_Pass_Channel

CC ID: 1179343
Contact Type: Organization
Contact Name: USACE
Publish Date: 2019-01-01
Extent Type: Discrete
Extent Start Date/Time: 2019
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Sabine Neches Waterway

eHydro seabrook_flood_gate_pontchartrain_surge

CC ID: 1179305
Contact Type: Organization
Contact Name: USACE
Publish Date: 2020-01-01
Extent Type: Discrete
Extent Start Date/Time: 2020
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

IHNC Storm Surge Barrier MRGO to Gulf Intracoastal Waterway (GIWW) immediately south-east of MRGO with the GIWW, LA.

eHydro Upper_Barataria_ww_giww_ww_harvey_algiers_canal

CC ID: 1179306
Contact Type: Organization
Contact Name: USACE
Publish Date: 2017-01-01
Extent Type: Discrete
Extent Start Date/Time: 2017
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Seabrook floodgate

eHydro Vermilion_River_3Milecut_VBay

CC ID: 1179356
Contact Type: Organization
Contact Name: USACE
Publish Date: 2019-01-01
Extent Type: Discrete
Extent Start Date/Time: 2019
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Vermilion River, Vermilion Bay

eHydro_upper_barataria_LA

CC ID: 1179287
Contact Type: Organization
Contact Name: USACE
Publish Date: 2020-01-01
Extent Type: Discrete
Extent Start Date/Time: 2020
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Intercoastal Waterway south of New Orleans

Elevation Void Fill (method used to interpolate elevation in cases where no-data gap occurs)

CC ID: 1179362
Contact Type: Organization
Contact Name: USGS
Publish Date: 2021-01-01
Extent Type: Discrete
Extent Start Date/Time: 2021
Source Contribution:

Varies

Grand Bay Mississippi 2015 Bathymetry

CC ID: 1179328
Contact Type: Organization
Contact Name: USGS
Publish Date: 2018-01-01
Extent Type: Discrete
Extent Start Date/Time: 2015
Citation URL: https://data.usgs.gov/datacatalog/data/USGS:34da878d-fe52-4625-a17f-bf443547c9b6
Source Contribution:

Grand Bay

LA-0161 LASARD Atchafalaya River Multibeam Survey Report

CC ID: 1179263
Contact Type: Organization
Contact Name: LA CPRA
Publish Date: 2012-01-01
Extent Type: Discrete
Extent Start Date/Time: 2012
Citation URL: https://cims.coastal.louisiana.gov/Viewer/Map.aspx?guid=7d31c01d-782a-4418-b94b-8cc4442eca2d
Source Contribution:

Consists of MBB collected for 4 Atchafalaya River channel survey areas: 1) Melville, Elba, Morgan City, and Wax Lake, LA acquired by Coastal Planning and Engineering, Inc.

LA-0252 System Wide Assessment & Monitoring Program Single Beam Bathymetry Barataria Basin (SWAMP Phase 1)

CC ID: 1179349
Contact Type: Organization
Contact Name: LA CPRA
Publish Date: 2016-01-01
Extent Type: Discrete
Extent Start Date/Time: 2016
Citation URL: https://cims.coastal.louisiana.gov/Viewer/BathyTopoData/LA-0252/raw/
Source Contribution:

Swamp Phase 1 area within Barataria Basin from Lake Des Allemands to Barataria Bay, LA

LA-0252 System Wide Assessment & Monitoring Program Single Beam Bathymetry Pontchartrain and Breton Basins (SWAMP Phase 2)

CC ID: 1179347
Contact Type: Organization
Contact Name: LA CPRA
Publish Date: 2018-01-01
Extent Type: Discrete
Extent Start Date/Time: 2017
Citation URL: https://cims.coastal.louisiana.gov/Viewer/BathyTopoData/LA-0252/raw/
Source Contribution:

Swamp Phase 2 area East of the Mississippi River including Lake Borgne, Lake Pontchartrain, Chandeleur Sound, and the Mississippi River Gulf Outlet (MRGO).

LA-0252 System Wide Assessment & Monitoring Program Single Beam Bathymetry Terrebonne Basin (SWAMP Phase 3)

CC ID: 1179348
Contact Type: Organization
Contact Name: LA CPRA
Publish Date: 2018-01-01
Extent Type: Discrete
Extent Start Date/Time: 2018
Citation URL: https://cims.coastal.louisiana.gov/Viewer/BathyTopoData/LA-0252/raw/
Source Contribution:

Swamp Phase 3 area from East to Central Terrebonne Basin, LA

LA-0252 System Wide Assessment & Monitoring Program Single Beam Bathymetry Western Terrebonne Basin to Sabine Basin (SWAMP Phase 4)

CC ID: 1179350
Contact Type: Organization
Contact Name: LA CPRA
Publish Date: 2019-01-01
Extent Type: Discrete
Extent Start Date/Time: 2019
Citation URL: https://cims.coastal.louisiana.gov/Viewer/BathyTopoData/LA-0252/raw/
Source Contribution:

Swamp Phase 4 area from West Terrebonne Basin to the Sabine Basin, LA

Lafourche Levee Lidar 2012

CC ID: 1179308
Contact Type: Organization
Contact Name: USGS
Publish Date: 2012-01-01
Extent Type: Discrete
Extent Start Date/Time: 2012
Source Contribution:

Lafourche Parish, LA levee system

Louisiana ARRA Region 2 Lidar (Zone 15)

CC ID: 1179311
Contact Type: Organization
Contact Name: USGS
Publish Date: 2013-01-01
Extent Type: Discrete
Extent Start Date/Time: 2013
Source Contribution:

ARRA Region 2 encompasses coastal Louisiana east of the Mississippi River, NE to Lake Borgne's excluding the northern shoreline to the MS state line. The active Mississippi River Delta or bird's foot is included in Region 2.

Louisiana ARRA Region 2 Lidar (Zone 16)

CC ID: 1179298
Contact Type: Organization
Contact Name: USGS
Publish Date: 2013-01-01
Extent Type: Discrete
Extent Start Date/Time: 2013
Citation URL: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/
Source Contribution:

ARRA Region 2 encompasses coastal Louisiana east of the Mississippi River, NE to Lake Borgne's excluding the northern shoreline to the MS state line. The active Mississippi River Delta or bird's foot is included in Region 2.

Louisiana Atchafalaya Basin 2 Lidar

CC ID: 1179359
Contact Type: Organization
Contact Name: USGS
Publish Date: 2014-01-01
Extent Type: Discrete
Extent Start Date/Time: 2013
Citation URL: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/
Source Contribution:

Atchafalaya River Basin within guide levees from Old River to the Gulf of Mexico, (LA).

Louisiana Barrier Island Comprehensive Monitoring Program (BICM): 2015 Bathymetric Survey – Grand Isle to Sandy Point Survey Report East Zone

CC ID: 1179296
Contact Type: Organization
Contact Name: LA CPRA
Publish Date: 2002-01-01
Extent Type: Discrete
Extent Start Date/Time: 2002
Source Contribution:

Southern Louisiana

Louisiana Bayou Nezpique Lidar 2018

CC ID: 1179300
Contact Type: Organization
Contact Name: USGS/NRCS
Publish Date: 2020-01-01
Extent Type: Discrete
Extent Start Date/Time: 2018
Citation URL: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/
Source Contribution:

Central Western Louisiana from Southern Rapides Parish south to 2017 chenier Plain QL2 lidar boundary and from 4 miles west of Lafayette, LA to eastern Lake Charles, LA.

Louisiana BICM2 Single Beam Bathymetry Chenier Plain

CC ID: 1179274
Contact Type: Organization
Contact Name: LA CPRA
Publish Date: 2017-01-01
Extent Type: Discrete
Extent Start Date/Time: 2015
Citation URL: https://coastal.er.usgs.gov/data-release/doi-F7CV4GZH/
Source Contribution:

BICM Chenier Plain Region from Marsh Island, LA West to the TX border.

Louisiana BICM2 Single Beam Bathymetry Raccoon Point to Point Au Fer Island

CC ID: 1179275
Contact Type: Organization
Contact Name: LA CPRA
Publish Date: 2017-01-01
Extent Type: Discrete
Extent Start Date/Time: 2015
Citation URL: https://pubs.usgs.gov/ds/1041/ds1041_data.html
Source Contribution:

BICM Western Early Lafourche Delta Region from Racoon Point West to Point Au Fer Island, LA.

Louisiana Chenier Plain Lidar 2017

CC ID: 1179302
Contact Type: Organization
Contact Name: USGS/LA CPRA
Publish Date: 2018-01-01
Extent Type: Discrete
Extent Start Date/Time: 2017
Citation URL: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/
Source Contribution:

Chenier Plain (LA)

Louisiana Jean Lafitte and Southern Barataria Basin Lidar

CC ID: 1179307
Contact Type: Organization
Contact Name: USGS/LA CPRA
Publish Date: 2015-01-01
Extent Type: Discrete
Extent Start Date/Time: 2013
Citation URL: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/
Source Contribution:

South Barataria basin (LA) between Bayou Lafourche on West and the Mississippi River on East and from Lake Salvador on North and then South to the Gulf of Mexico (LA).

Louisiana South Terrebonne and Gulf Islands QL2 Lidar 2015

CC ID: 1179310
Contact Type: Organization
Contact Name: USGS
Publish Date: 2016-01-01
Extent Type: Discrete
Extent Start Date/Time: 2015
Citation URL: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/
Source Contribution:

South Terrebonne basin 9LA) from Gulf of Mexico on South then North to Morgan City and then ENE to the west bank of Bayou Lafourche, near Labadieville, and then SE to Galliano, LA. Also includes Gulf barrier Islands from the Chandeleur Islands, LA East to Dauphin Island, AL.

Louisiana Statewide Lidar

CC ID: 1179312
Contact Type: Organization
Contact Name: LOSCO
Publish Date: 2005-01-01
Extent Type: Discrete
Extent Start Date/Time: 2004
Citation URL: https://atlas.ga.lsu.edu/datasets/lidar2000/
Source Contribution:

Statewide

Louisiana Upper Delta Plain Lidar 2017

CC ID: 1179313
Contact Type: Organization
Contact Name: USGS/LA CPRA
Publish Date: 2017-01-01
Extent Type: Discrete
Extent Start Date/Time: 2017
Citation URL: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/
Source Contribution:

Upper Delta Plain (LA) from the Peral River on East to the Atchafalaya River East Guide Levee on West. From I-12 North to mid-Barataria Basin North-east to the Pearl River.

Mardi_Gras_Pass

CC ID: 1179317
Contact Type: Organization
Contact Name: Lake Pontchartrain Basin Foundation
Publish Date: 2019-01-01
Extent Type: Discrete
Extent Start Date/Time: 2019
Citation URL: https://saveourlake.org/
Source Contribution:

Bohemia Spillway, Plaquemines Parish, LA

Mississippi Additional Bathymetry

CC ID: 1179321
Contact Type: Organization
Contact Name: USACE
Publish Date: 2013-01-01
Extent Type: Discrete
Extent Start Date/Time: 2013
Citation URL: https://www.mvn.usace.army.mil/Missions/Navigation/Channel-Surveys/
Source Contribution:

Mississippi River, south and west of New Orleans

Mississippi Coastal QL2 Lidar

CC ID: 1179329
Contact Type: Organization
Contact Name: USGS
Publish Date: 2018-01-01
Extent Type: Discrete
Extent Start Date/Time: 2015
Citation URL: https://www.maris.state.ms.us/ftp4DEM/Coastal_2015_DEMs/DEM_IMG/
Source Contribution:

Six Mississippi Coastal Counties and 3DEP Extension (Pike County in NGOM 2 AOI)

Mississippi River Bathymetry

CC ID: 1179259
Contact Type: Organization
Contact Name: USACE
Publish Date: 2019-01-01
Extent Type: Discrete
Extent Start Date/Time: 2019
Citation URL: https://www.mvn.usace.army.mil/Missions/Navigation/Channel-Surveys/
Source Contribution:

Mississippi River Channel

Mobile, Alabama 1/3 arc-second NAVD 88 Coastal Digital Elevation Model

CC ID: 1179322
Contact Type: Organization
Contact Name: NOAA/NCEI
Publish Date: 2009-01-01
Extent Type: Discrete
Extent Start Date/Time: 2009
Citation URL: https://www.ngdc.noaa.gov/mgg/coastal/coastal.html
Source Contribution:

Mobile Bay, AL

MS2006_MDEQ_CampShelby

CC ID: 1179327
Contact Type: Organization
Contact Name: NOAA
Publish Date: 2006-01-01
Extent Type: Discrete
Extent Start Date/Time: 2006
Citation URL: https://coast.noaa.gov/dataviewer/#/lidar/search/
Source Contribution:

West of Camp Shelby

NCEI channel filter

CC ID: 1179337
Contact Type: Organization
Contact Name: USGS
Publish Date: 2021-01-01
Extent Type: Discrete
Extent Start Date/Time: 2021
Source Contribution:

Filtered bathymetry in the northern Gulf of Mexico

New Orleans, Louisiana 1/3 arc-second NAVD 88 Coastal Digital Elevation Model

CC ID: 1179335
Contact Type: Organization
Contact Name: NOAA/NCEI
Publish Date: 2010-01-01
Extent Type: Discrete
Extent Start Date/Time: 2010
Citation URL: https://www.ngdc.noaa.gov/mgg/coastal/coastal.html
Source Contribution:

New Orleans, LA

NGOM Alabama LiDAR

CC ID: 1179262
Contact Type: Organization
Contact Name: USGS
Publish Date: 2010-01-01
Extent Type: Discrete
Extent Start Date/Time: 2010
Citation URL: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/
Source Contribution:

700 square mile area to the east of Mobile Bay

NGOM1 - Selected areas of land to insert

CC ID: 1179336
Contact Type: Organization
Contact Name: USGS
Publish Date: 2014-01-01
Extent Type: Discrete
Extent Start Date/Time: 2014
Citation URL: https://topotools.cr.usgs.gov/topobathy_viewer/
Source Contribution:

Northern Gulf of Mexico

NOAA Bags

CC ID: 1179363
Contact Type: Organization
Contact Name: NOAA
Publish Date: 2020-01-01
Extent Type: Range
Extent Start Date/Time: 2005
Extent End Date/Time: 2018
Citation URL: https://www.ncei.noaa.gov/maps/bathymetry/
Source Contribution:

Northern Gulf of Mexico

NOAA Point Surveys - Interpolated

CC ID: 1179364
Contact Type: Organization
Contact Name: NOAA
Publish Date: 2012-01-01
Extent Type: Range
Extent Start Date/Time: 1885
Extent End Date/Time: 2012
Citation URL: https://www.ncei.noaa.gov/maps/bathymetry/
Source Contribution:

Northern Gulf of Mexico

Pearl River Single-Beam Sonar Data

CC ID: 1179339
Contact Type: Organization
Contact Name: USFWS
Publish Date: 2017-01-01
Extent Type: Discrete
Extent Start Date/Time: 2017
Source Contribution:

Pearl River, LA/MS border

Pensacola, Florida 1/3 arc-second NAVD 88 DEM

CC ID: 1179340
Contact Type: Organization
Contact Name: NOAA/NCEI
Publish Date: 2015-01-01
Extent Type: Discrete
Extent Start Date/Time: 2015
Citation URL: https://www.ngdc.noaa.gov/mgg/coastal/coastal.html
Source Contribution:

Pensacola, FL

perdido_pass_fly_creek_dauphin_island_al

CC ID: 1179341
Contact Type: Organization
Contact Name: USACE
Publish Date: 2020-01-01
Extent Type: Discrete
Extent Start Date/Time: 2020
Citation URL: https://www.arcgis.com/apps/dashboards/4b8f2ba307684cf597617bf1b6d2f85d
Source Contribution:

Dauphin Island, Fly Creek, Perdido Pass

PO-0033 Goose Point/Point Platte Marsh Creation 2006 Bathymetric Survey

CC ID: 1179291
Contact Type: Organization
Contact Name: LA CPRA
Publish Date: 2006-01-01
Extent Type: Discrete
Extent Start Date/Time: 2006
Citation URL: https://cims.coastal.louisiana.gov/Viewer/BathyTopoData/PO-0033/raw/
Source Contribution:

Goose Point-Proctor Point, LA

PO-0038-SF MRGO Closure Structure Bathymetry Survey

CC ID: 1179324
Contact Type: Organization
Contact Name: LA CPRA
Publish Date: 2020-01-01
Extent Type: Discrete
Extent Start Date/Time: 2020
Citation URL: https://cims.coastal.louisiana.gov/Viewer/BathyTopoData/PO-0038-SF/raw/
Source Contribution:

Immediately south of the Mississippi River Gulf Coast Outlet Canal's intersection with Bayou La Loutre

PO-0179 St. Catherine Island Marsh Creation and Shoreline Protection Bathymetry Survey

CC ID: 1179346
Contact Type: Organization
Contact Name: LA CPRA
Publish Date: 2019-01-01
Extent Type: Discrete
Extent Start Date/Time: 2019
Citation URL: https://cims.coastal.louisiana.gov/Viewer/BathyTopoData/PO-0179/raw/
Source Contribution:

Southwest Lake Catherine's Island, LA

Single-Beam Bathymetry Data Collected in 2015 Nearshore Dauphin Island, Alabama

CC ID: 1179282
Contact Type: Organization
Contact Name: USGS/USACE
Publish Date: 2017-01-01
Extent Type: Discrete
Extent Start Date/Time: 2015
Citation URL: https://data.usgs.gov/datacatalog/data/USGS:3f435d40-723b-41af-ac98-91d285d68523
Source Contribution:

Dauphin Island, AL

Southern Louisiana 1/3 arc-second NAVD 88 Coastal Digital Elevation Model

CC ID: 1179345
Contact Type: Organization
Contact Name: NOAA/NCEI
Publish Date: 2010-01-01
Extent Type: Discrete
Extent Start Date/Time: 2010
Citation URL: https://www.ncei.noaa.gov/metadata/geoportal/rest/metadata/item/gov.noaa.ngdc.mgg.dem:1521/html
Source Contribution:

Southern Louisiana

TE-0044 North Lake Mechant Landbridge Restoration 2008 Bathymetric Survey

CC ID: 1179315
Contact Type: Organization
Contact Name: LA CPRA
Publish Date: 2008-01-01
Extent Type: Discrete
Extent Start Date/Time: 2008
Citation URL: https://cims.coastal.louisiana.gov/Viewer/BathyTopoData/TE-0044/raw/
Source Contribution:

North Lake Merchant Land Bridge, LA fill borrow area

TE-010 Increase Atchafalaya Flow to Terrebonne GIWW Bathy Survey

CC ID: 1179295
Contact Type: Organization
Contact Name: LA CPRA
Publish Date: 2015-01-01
Extent Type: Discrete
Extent Start Date/Time: 2015
Citation URL: https://cims.coastal.louisiana.gov/Viewer/BathyTopoData/TE-0110/raw/ https://cims.coastal.louisiana.gov/Viewer/Map.aspx?guid=7d31c01d-782a-4418-b94b-8cc4442eca2d
Source Contribution:

Gulf Intracoastal Waterway from Houma to Morgan City, LA

TE-0143 Terrebonne Basin Barrier Island and Beach Nourishment

CC ID: 1179351
Contact Type: Organization
Contact Name: LA CPRA
Publish Date: 2018-01-01
Extent Type: Discrete
Extent Start Date/Time: 2018
Citation URL: https://cims.coastal.louisiana.gov/Viewer/Map.aspx?guid=7d31c01d-782a-4418-b94b-8cc4442eca2d
Source Contribution:

Terrebonne Bay around Timbalier and Derrieres Islands

TX Jefferson Liberty Chambers TNRIS 2017

CC ID: 1179353
Contact Type: Organization
Contact Name: TNRIS
Publish Date: 2017-01-01
Extent Type: Discrete
Extent Start Date/Time: 2017
Citation URL: https://data.tnris.org/collection/12342f12-2d74-44c4-9f00-a5c12ac2659c
Source Contribution:

extents cover the cities of Beaumont, Port Arthur, and Nederland in southeast Texas

TX Upper Coast 2018

CC ID: 1179355
Contact Type: Organization
Contact Name: TNRIS
Publish Date: 2018-01-01
Extent Type: Discrete
Extent Start Date/Time: 2018
Citation URL: https://data.tnris.org/collection/b5bd2b96-8ba5-4dc6-ba88-d88133eb6643
Source Contribution:

Orange, Matagorda, Harris Counties

USACE 2013 Lower Mississippi River Survey

CC ID: 1179256
Contact Type: Organization
Contact Name: USACE New Orleans District
Publish Date: 2016-01-01
Extent Type: Discrete
Extent Start Date/Time: 2013
Citation URL: https://www.mvn.usace.army.mil/Missions/Engineering/Channel-Improvement-and-Stabilization-Program/2013MBMR/
Source Contribution:

Mississippi River bank to bank survey from Old River Control Structure to SW Pass, LA.

USGS Lidar Mobile Co, AL 2014

CC ID: 1179261
Contact Type: Organization
Contact Name: USGS
Publish Date: 2016-01-01
Extent Type: Discrete
Extent Start Date/Time: 2014
Citation URL: https://coast.noaa.gov/htdata/raster2/elevation/Mobile_DEM_2014_5169/
Source Contribution:

Mobile County, AL, 2014 QL2 Lidar

USGS Lidar Neches Texas 2016

CC ID: 1179354
Contact Type: Organization
Contact Name: USGS
Publish Date: 2018-01-01
Extent Type: Discrete
Extent Start Date/Time: 2017
Citation URL: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/
Source Contribution:

Complete or partial coverage of twenty-six Texas counties in southeastern Texas containing the Neches River Drainage Basin (The southeastern portion of the project Area is in NGOM 2 AOI)

USGS Lidar Texas Eastern Block 3 2018

CC ID: 1179352
Contact Type: Organization
Contact Name: USGS
Publish Date: 2019-01-01
Extent Type: Discrete
Extent Start Date/Time: 2018
Citation URL: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/
Source Contribution:

Complete coverage of the Texas Eastern data for block 3, just west of the Sabine River within TX and the NGOM 2 boundary

USGS Lidar Tishomingo-South, MS 2016

CC ID: 1179319
Contact Type: Organization
Contact Name: USGS
Publish Date: 2017-01-01
Extent Type: Discrete
Extent Start Date/Time: 2016
Citation URL: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/
Source Contribution:

Tishomingo, Mississippi 2016 QL2 LiDAR Project southern AOI only (partial NGOM 2 coverage).

USGS Lidar Tupelo, MS 2015

CC ID: 1179332
Contact Type: Organization
Contact Name: USGS
Publish Date: 2016-01-01
Extent Type: Discrete
Extent Start Date/Time: 2015
Citation URL: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/
Source Contribution:

Tupelo, Mississippi 2016 QL2 LiDAR Project Report (partial NGOM 2 coverage).

USGS NRCS Lidar Natchez, MS 2016

CC ID: 1179330
Contact Type: Organization
Contact Name: USGS/NRCS
Publish Date: 2017-01-01
Extent Type: Discrete
Extent Start Date/Time: 2017
Citation URL: https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/1m/Projects/
Source Contribution:

Southwest Central MS from Vicksburg to Louisiana state line. 2016 QL2 LiDAR Project Report (partial NGOM 2 coverage).

Process Steps

Process Step 1

CC ID: 1179365
Description:

The principal methodology for developing the integrated topobathymetric digital elevation model (TBDEM) can be organized into three main components. The "topography component" consists of the land-based elevation data, which is primarily comprised from high-density lidar data. The topographic source data will include lidar data from different sensors (Topographic, Bathymetric) with distinct spectral wavelengths (NIR-1064nm, Green-532nm). The "bathymetry component" consists of hydrographic sounding (acoustic) data collected using watercraft rather than bathymetry acquired from green laser lidar within an airborne platform. The most common forms of bathymetric acquisitions include are multi-beam, single-beam, and swath. The final component, "integration", encompasses the assimilation of the topographic and bathymetric data along the near-shore based on a predefined set of priorities. The land/water interface is the most critical area, and green laser systems, such as the Experimental Advanced Airborne Research lidar (EAARL-B) and the Coastal Zone Mapping and Imaging Lidar (CZMIL) that cross the near-shore interface are valuable in developing a seamless transition. The TBDEM created from the topography and bathymetry components is a raster with associated spatial masks and metadata that can be passed to the integration component for final model incorporation.

Topo/Bathy Creation Steps: Topography Processing Component: a) Quality control check the vertical and horizontal datum and projection information of the input lidar source to ensure the data is referenced to the North American Vertical Datum of 1988 (NAVD88), the North American Datum of 1983 (NAD83), and the Universal Transverse Mercator (UTM) projection. If the source data is not NAVD88, transform the input lidar data to NAVD88 reference frame using current National Geodetic Survey (NGS) geoid models and NOAA’s Vertical Datums Transformation (VDatum) software. Likewise, if required, convert the input source data to NAD83 and reproject to UTM. b) Check the classification of the topographic lidar data to verify the data are classified with the appropriate classes. If the data have not been classified, then classify the raw point cloud data to non-ground (class 1) ground (class 2), and water (class 9) classes using LP360-Classify. c) Derive associated breaklines from the classified lidar to capture internal water bodies, such as lakes and ponds and inland waterways. Inland waterways and water bodies were hydro-flattened where no bathymetry is present. Hydro-flattening is the process of creating a lidar-derived DEM in which water surfaces appear and behave as they would in traditional topographic DEMs created from photogrammetric digital terrain models (DTMs). d) Extract the ground returns from the classified lidar data and randomly spatial subset the points into two point sets based on the criteria of 95 percent of the points for the "Actual Selected" set and the remaining 5 percent for the "Test Control" set. The "Actual Selected" points will be gridded in the terrain model along with associated breaklines and masks to generate the topographic surface, while the "Test Control" points will be used to compute the interpolation accuracy, Root Mean Square Error (RMSE) from the derived surface. e) Generate the minimum convex hull boundary from the classified ground lidar points that creates a mask that extracts the perimeter of the exterior lidar points. The mask is then applied in the terrain to remove extraneous terrain artifacts outside of the extent of the ground lidar points. f) Using a terrain model based on triangulated irregular networks (TINs), grid the "Actual Selected" ground points using breaklines and the minimum convex hull boundary mask at a 1-meter spatial resolution using a natural neighbor interpolation algorithm. g) Compute the interpolation accuracy by comparing elevation values in the "Test Control" points to values extracted from the derived gridded su

Process Date/Time: 2021-07-08 00:00:00

Process Step 2

CC ID: 1179366
Description:

Bathymetry Processing Component: a) Quality control check the vertical and horizontal datum and projection information of the input bathymetric source to ensure the data is referenced to NAVD88 and NAD83, UTM. If the source data is not NAVD88, transform the input bathymetric data to NAVD88 reference frame using VDatum. Likewise, if required, convert the input source data to NAD83 and reproject to UTM. b) Prioritize and spatially sort the bathymetry based on date of acquisition, spatial distribution, accuracy, and point density to eliminate any outdated or erroneous points and to minimize interpolation artifacts. c) Randomly spatial subset the bathymetric points into two point sets based on the criteria of 95 percent of the points for the "Actual Selected" set and the remaining 5 percent for the "Test Control" set. The "Actual Selected" points will be gridded in the empirical Bayesian kriging model along with associated masks to generate the bathymetric surface, while the "Test Control" points will be used to compute the interpolation accuracy (RMSE) from the derived surface. d) Spatially interpolate bathymetric single-beam, multi-beam, and hydrographic survey source data using an empirical Bayesian kriging gridding algorithm. This approach uses a geostatistical interpolation method that accounts for the error in estimating the underlying semivariogram (data structure - variance) through repeated simulations. e) Cross validation - Compare the predicted value in the geostatistical model to the actual observed value to assess the accuracy and effectiveness of model parameters by removing each data location one at a time and predicting the associated data value. The results will be reported in terms of RMSE. f) Compute the interpolation accuracy by comparing elevation values in the "Test Control" points to values extracted from the derived gridded surface; report the results in terms of RMSE.

Process Date/Time: 2021-07-08 00:00:00

Process Step 3

CC ID: 1179367
Description:

Integration Component: a.) Analyze the input data priority based on project characteristics, including acquisition dates, cell size, retention of features, water surface treatment, visual inspection, and presence of artifacts. b.) Prioritize and spatially sort the input topographic, topobathymetric, and bathymetric raster layers based on date of survey acquisition date, accuracy, spatial distribution, and point density to sequence the raster data in the integrated elevation model. c.) Develop an ArcGIS geodatabase (Mosaic Dataset) and spatial seamlines for each individual topographic, topobathymetric, and bathymetric raster layer included in the integrated elevation model. d.) Create an overview project masking polygon (based on final study AOI) e.) Using Grid Index Features, create a 6000x6000 fishnet feature class for tile-based integration processing f.) Create simple raster (vector) boundaries (custom simple_raster_bnd_batch tool) from the final set of input rasters based on the input priority. The rasters should be prioritized with the highest priority ranking on top and so forth. g.) Generate spatially referenced metadata for each input raster (custom make spatial metadata tool) from the simple raster boundary files, based on the input priority. The boundaries should be prioritized with the lowest priority (input raster layer) ranking on top and so forth. The spatially referenced metadata consists of the group of geospatial polygons that represent the spatial footprint of each data source used in the generation of the TBDEM. Each polygon is populated with raster metadata attributes that describe the source data, such as, resolution, acquisition date, source name, source organization, source contact, source project, source URL, and data type (topographic lidar, topobathymetric lidar, multibeam bathymetry, single-beam bathymetry, etc.). h.) Generalize seamline edges to smooth transition boundaries between neighboring raster layers and split complex raster datasets with isolated regions into individual unique raster groups. i.) Using the spatial metadata and tile fishnet, spatially mosaic (custom make micro mosaic dataset tool) the input raster data sources based on priority to create a seamless topobathymetric composite at a cell size of 1-meter using a linear spatial blending (ten pixel overlapping area) technique between input source layers. j.) Perform a visual quality assurance (Q/A) assessment on the output TBDEM composite to review the integrated mosaic for artifacts and anomalies.

Process Date/Time: 2021-07-08 00:00:00

Process Step 4

CC ID: 1179498
Description:

The NOAA Office for Coastal Management (OCM) received one tif file for the topobathymetric data for northern Gulf of Mexico (TX, LA, MS, AL) from the USGS Coastal National Elevation Database (CoNED) Applications Project for inclusion in the NOAA Digital Coast Data Access Viewer. The data were in UTM Zone 15 NAD83(2011), meters coordinates and in NAVD88 (Geoid12B) elevations in meters. The data were at a 1m grid spacing. The data were retiled to 8512, cloud optimized GeoTiffs using gdal_retile.py and the horizontal (6344) and vertical (5703) EPSG codes were assigned.

Process Date/Time: 2022-08-01 00:00:00
Process Contact: Office for Coastal Management (OCM)

Catalog Details

Catalog Item ID: 67613
GUID: gov.noaa.nmfs.inport:67613
Metadata Record Created By: Rebecca Mataosky
Metadata Record Created: 2022-08-02 19:12+0000
Metadata Record Last Modified By: Rebecca Mataosky
Metadata Record Last Modified: 2022-10-05 13:33+0000
Metadata Record Published: 2022-08-02
Owner Org: OCMP
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2022-08-02
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2023-08-02