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OCM Partners Metadata Library > DEMs - partner (no harvest) >

2010 USACE NCMP Topobathy Lidar DEM: Oregon and Washington

Data Set (DS)  |  OCM Partners (OCMP)
GUID: gov.noaa.nmfs.inport:66400  |  Updated: January 10, 2024  |  Published / External 
Summary
Item Identification
Keywords
Physical Location
Data Set Info
Support Roles
Extents
Spatial Info
Access Info
Distribution Info
URLs
Tech Environment
Data Quality
Lineage
Related Items
Catalog Details

Summary

Browse graphic

Short Citation
OCM Partners, 2024: 2010 USACE NCMP Topobathy Lidar DEM: Oregon and Washington, https://www.fisheries.noaa.gov/inport/item/66400.
Full Citation Examples

Abstract

These files contain rasterized topographic and bathymetric lidar elevations generated from data collected by the SHOALS-1000T bathymetric and the Leica ALS60 topographic lidar systems along the coast of Oregon and Washington. Lidar data coverage normally extends along the coastline from the waterline inland 500 meters (topography) and offshore 1,000 meters or to laser extinction. An exception to topographic coverage was made during the field data acquisition where the 500 m corridor was shifted toward the ocean to include the large occurrence of exposed rocks off the Oregon coastline. In this case the final topographic data coverage corridor was reduced to a range of 100 m to 150 m to include coverage over rocks offshore. In Washington, additional bathymetric survey areas in Puget Sound and San Juan de Fuca Strait were added on later in the field campaign to replace areas with persistent unfavorable survey conditions (weather and water clarity); topographic lidar data collection was not performed on the additional areas.

Native lidar data is not generally in a format accessible to most Geographical Information Systems (GIS). Specialized in-house and commercial software packages are used to process the native lidar data into 3-dimensional positions that can be imported into GIS software for visualization and further analysis. The 3-D position data are used to generate a series of gridded file products, with each covering approximately 5 kilometers of shoreline. The grid file index is provided by the shape file, "OR_Boxes", and the numbers used to identify files are in the "Box" field of the shape file. The data file naming convention is based on the year, project, area name, vertical datum, "Box" number and product type. An example file name is "2010_NCMP_OR_001_Grid.tif", where <2010> is the project year, <NCMP> is the project under which data were collected, <OR> is the area of data collection, <001> is the "Box" number and <Grid> is the product type (bare earth DEM or first return DSM). On bare earth DEM, interpolation has occurred over removed building footprints to fill in elevations.

In addition to these bare earth Digital Elevation Model (DEM) data, the lidar point data that these DEM data were created from, are also available. These data are available for custom download at the link provided in the URL section of this metadata record.

Distribution Information

  • Customized Download

    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.

  • Bulk Download
    GeoTIFF

    Bulk download of data files in the original coordinate system.

Access Constraints:

None

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.

Controlled Theme Keywords

BATHYMETRY, COASTAL ELEVATION, elevation, imageryBaseMapsEarthCover, oceans, SEAFLOOR TOPOGRAPHY, TERRAIN ELEVATION

Child Items

No Child Items for this record.

Contact Information

Point of Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202
https://coast.noaa.gov

Metadata Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202
https://coast.noaa.gov

Extents

Geographic Area 1

-124.73687° W, -123.89907° E, 48.38925° N, 41.99885° S

Time Frame 1
2010-06-27 - 2010-07-13

Oregon dates of collection.

Time Frame 2
2010-07-24 - 2010-10-07

Washington dates of collection.

Item Identification

Title: 2010 USACE NCMP Topobathy Lidar DEM: Oregon and Washington
Short Name: usace2010_or_wa_dem_m9443_metadata
Status: Completed
Creation Date: 2010
Abstract:

These files contain rasterized topographic and bathymetric lidar elevations generated from data collected by the SHOALS-1000T bathymetric and the Leica ALS60 topographic lidar systems along the coast of Oregon and Washington. Lidar data coverage normally extends along the coastline from the waterline inland 500 meters (topography) and offshore 1,000 meters or to laser extinction. An exception to topographic coverage was made during the field data acquisition where the 500 m corridor was shifted toward the ocean to include the large occurrence of exposed rocks off the Oregon coastline. In this case the final topographic data coverage corridor was reduced to a range of 100 m to 150 m to include coverage over rocks offshore. In Washington, additional bathymetric survey areas in Puget Sound and San Juan de Fuca Strait were added on later in the field campaign to replace areas with persistent unfavorable survey conditions (weather and water clarity); topographic lidar data collection was not performed on the additional areas.

Native lidar data is not generally in a format accessible to most Geographical Information Systems (GIS). Specialized in-house and commercial software packages are used to process the native lidar data into 3-dimensional positions that can be imported into GIS software for visualization and further analysis. The 3-D position data are used to generate a series of gridded file products, with each covering approximately 5 kilometers of shoreline. The grid file index is provided by the shape file, "OR_Boxes", and the numbers used to identify files are in the "Box" field of the shape file. The data file naming convention is based on the year, project, area name, vertical datum, "Box" number and product type. An example file name is "2010_NCMP_OR_001_Grid.tif", where <2010> is the project year, <NCMP> is the project under which data were collected, <OR> is the area of data collection, <001> is the "Box" number and <Grid> is the product type (bare earth DEM or first return DSM). On bare earth DEM, interpolation has occurred over removed building footprints to fill in elevations.

In addition to these bare earth Digital Elevation Model (DEM) data, the lidar point data that these DEM data were created from, are also available. These data are available for custom download at the link provided in the URL section of this metadata record.
Purpose:

These data were collected as a part of the National Coastal Mapping Program (NCMP) to depict the elevations above and below the water line in the Oregon and Washington coastal zone.
Supplemental Information:

High water turbidity in the survey area hindered the acquisition of bathymetric data all along the county coastline and resulted in incomplete coverage. Unfavorable weather contingencies also prevented the acquisition of full flight line plans, adding on to the incomplete coverage. Additionally, datasets collected on different times such that shoreline material had moved exceeding the accuracy tolerance, were not merged and rather separated as dataset "A", "B", etc., for the box number affected. Data were collected during 2010 and 2011 field campaigns as part on one survey plan, but due to temporal variation of ground conditions, data were not merged for gridding.

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 > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > BATHYMETRY
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > SEAFLOOR TOPOGRAPHY
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > OCEANS > COASTAL PROCESSES > COASTAL ELEVATION
ISO 19115 Topic Category
elevation
ISO 19115 Topic Category
imageryBaseMapsEarthCover
ISO 19115 Topic Category
oceans
UNCONTROLLED
None ALS60
None JALBTCX
None SHOALS

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 > OREGON
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > WASHINGTON
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 Lane

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
Airplane > Airplane

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: Model (digital)
Distribution Liability:

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: JALBTCX (Joint Airborne Lidar Bathymetry Technical Center of eXpertise)

Support Roles

Data Steward

CC ID: 1120635
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: 1120634
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: 1120636
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: 1120637
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: 1296900
W° Bound: -124.73687
E° Bound: -123.89907
N° Bound: 48.38925
S° Bound: 41.99885

Extent Group 1 / Time Frame 1

CC ID: 1296898
Time Frame Type: Range
Start: 2010-06-27
End: 2010-07-13
Description:

Oregon dates of collection.

Extent Group 1 / Time Frame 2

CC ID: 1296899
Time Frame Type: Range
Start: 2010-07-24
End: 2010-10-07
Description:

Washington dates of collection.

Spatial Information

Spatial Resolution

Horizontal Distance: 1.0 Meter

Spatial Representation

Representations Used

Grid: Yes

Reference Systems

Reference System 1

CC ID: 1296896

Coordinate Reference System
CRS Type: Geographic 2D
EPSG Code: EPSG:4269
EPSG Name: NAD83
▾ See Full Coordinate Reference System Information

Reference System 2

CC ID: 1296895

Coordinate Reference System
CRS Type: Vertical
EPSG Code: EPSG:5703
EPSG Name: NAVD88 height
▾ 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: 1120641
Start Date: 2022-01-10
End Date: Present
Download URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=9443/details/9443
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 (Deprecated): Zip
Compression: Zip

Distribution 2

CC ID: 1120642
Start Date: 2022-01-10
End Date: Present
Download URL: https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/USACE_OR_WA_DEM_2010_9443/index.html
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 (Deprecated): GeoTIFF
Distribution Format: GeoTIFF

URLs

URL 1

CC ID: 1120630
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: 1120631
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: 1120632
URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/8607/supplemental/usace2010_or_wa_m8607.kmz
Name: Browse graphic
URL Type:
Browse Graphic
File Resource Format: KML
Description:

This graphic displays the footprint for this lidar data set.

URL 4

CC ID: 1120673
URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=8607/details/8607
Name: Custom Point Download
URL Type:
Online Resource
File Resource Format: Zip
Description:

Link to custom download, from the Data Access Viewer (DAV), the lidar point data from which these raster Digital Elevation Model (DEM) data were created.

Technical Environment

Description:

Microsoft Windows 2000 Version 5.2 (Build 3790) Service Pack 2; ESRI ArcCatalog 9.2.6.1500

Data Quality

Horizontal Positional Accuracy:

The data positions were obtained using post processed KGPS methods. The horizontal accuracy of the data is better than +/- 1.5 m RMSE
Vertical Positional Accuracy:

The data positions were obtained using post processed KGPS methods. The vertical accuracy of the data is better than +/- 0.15 m RMSE
Conceptual Consistency:

The data provided in this file were tested against ground truth data. At these locations the lidar data matched within 0.15 meters RMSE

Lineage

Lineage Statement:

The USACE collected, processed, and provided the data to the NOAA Office for Coastal Management (OCM). OCM received the data and processed it to be available for custom download from the Data Access Viewer (DAV) and for bulk download from https.

Sources

USACE JALBTCX

CC ID: 1296891
Contact Role Type: Originator
Contact Type: Organization
Contact Name: USACE JALBTCX

Process Steps

Process Step 1

CC ID: 1296892
Description:

These data were collected using the SHOALS-1000T and ALS60 systems. They are owned by Fugro and operated through contract. The ALS60 system collects topographic lidar data at maximum pulse rate of 200 kHz in a wavelength of 1064 nm with a CASI-1500 hyperspectral line scanner integrated with the system. The SHOALS collects bathymetric lidar data at 1kHz, RGB imagery at 1Hz and a CASI-2 hyperspectral line scanner integrated with the system as well. Aircraft position, velocity and acceleration information are collected through a Novatel and POS A/V 410 equipment (SHOALS) and the onboard GPS/IMU system (ALS60). SHOALS raw data streams are transferred to the office for downloading and processing in SHOALS GCS software. ALS60 raw data were also transferred to the office and processed in IPAS software. Aircraft position data are processed using POSPac software and the results are combined with the lidar data to produce 3-D positions for each lidar shot. Upon inspection and QA/QC in the software packages Fledermaus (SHOALS), GeoCue and TerraScan (ALS60), anomalous data are flagged as invalid. FPI Workbench and Fugro's proprietary software convert all valid data from ellipsoid to orthometric heights based on the NGS' GEOID09 model and exports data as a series of first return topography and bathymetry ASCII files. The bathymetry files contain only the returns below the water surface (no topography).

Process Step 2

CC ID: 1296893
Description:

The topographic first return and bathymetry point clouds, where both exist, are combined into a single file to create a surface model grid (DSM); bathymetric data have been limited to data below the water surface. On bare earth DEM, topographic data has been filtered to include ground returns only; These datasets are combined to create the elevation model.

The raster grids are created by generating a triangulated irregular network (TIN) and then extracting the grid node elevations from the TIN surface; in the bare earth DEM, interpolation fills in elevation values over building footprints. The origin point of the grid is located at a horizontal position whose value is evenly divisible by the 1m grid resolution such that rasters from subsequent surveys have common cell boundaries. Fugro uses FPI Workbench and ArcGIS to perform this operation utilizing TIN area delineation method: "max edge length 10m"; this also secures elevations will not be interpolated more than 5m away from actual data points (except when interpolating over building footprints). The grid is converted to a TIFF raster within ArcGIS. The projection is defined as "North American Datum of 1983" using the DefineProjection command within ArcToolbox; statistics are also generated with Calculate_Statistics tool to display the grid's elevations range properly.

Horizontal positions, provided in decimal degrees of latitude and longitude, are referenced to the North American Datum of 1983 (NAD83). Vertical positions are referenced to the NAD83 ellipsoid and provided in meters. The National Geodetic Survey's (NGS) GEOID09 model is used to transform the vertical positions from ellipsoid to orthometric heights referenced to the North American Vertical Datum of 1988 (NAVD88).

Process Step 3

CC ID: 1296894
Description:

The NOAA Office for Coastal Management (OCM) received GeoTiff format files from USACE JALBTCX for the Oregon and Washington coastline project area. The bare earth raster files were at a 1 m grid spacing. The data were in geographic NAD83 coordinates and NAVD88 (Geoid09) elevations in meters. OCM assigned the appropriate EPSG codes (Horiz - 4269, Vert - 5703) and copied the raster files to https for Digital Coast storage and provisioning purposes.
Process Date/Time: 2022-01-10 00:00:00
Process Contact: Office for Coastal Management (OCM)

Related Items

Item Type Relationship Type Title
Data Set (DS) Cross Reference 2010 USACE NCMP Topobathy Lidar: Oregon and Washington

Catalog Details

Catalog Item ID: 66400
GUID: gov.noaa.nmfs.inport:66400
Metadata Record Created By: Rebecca Mataosky
Metadata Record Created: 2022-01-10 16:25+0000
Metadata Record Last Modified By: Kirk Waters
Metadata Record Last Modified: 2024-01-10 19:22+0000
Metadata Record Published: 2024-01-10
Owner Org: OCMP
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2022-03-16
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2023-03-16