NOAA Office for Coastal Management Coastal Inundation Digital Elevation Model: Louisiana Central
Office for Coastal Management
Data Set
(DS)
| ID: 58494
| Published / External
Created: 2020-01-09
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Last Modified: 2023-05-30
Project (PRJ) | ID: 37230
ID: 58494
Data Set (DS)
* Discovery• First Pass
» Metadata Rubric
Item Identification
* » Title | NOAA Office for Coastal Management Coastal Inundation Digital Elevation Model: Louisiana Central |
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Short Name | LA Central DEM FY20 Update |
* Status | Completed |
Creation Date | |
Revision Date | |
• Publication Date | 2020-01 |
* » Abstract |
These data were created as part of the National Oceanic and Atmospheric Administration Office for Coastal Management's efforts to create an online mapping viewer called the Sea Level Rise and Coastal Flooding Impacts Viewer. It depicts potential sea level rise and its associated impacts on the nation's coastal areas. The purpose of the mapping viewer is to provide coastal managers and scientists with a preliminary look at sea level rise and coastal flooding impacts. The viewer is a screening-level tool that uses nationally consistent data sets and analyses. Data and maps provided can be used at several scales to help gauge trends and prioritize actions for different scenarios. The Sea Level Rise and Coastal Flooding Impacts Viewer may be accessed at: https://coast.noaa.gov/slr.
This metadata record describes the Louisiana Central digital elevation model (DEM), which is a part of a series of DEMs produced for the National Oceanic and Atmospheric Administration Office for Coastal Management's Sea Level Rise and Coastal Flooding Impacts Viewer described above. This DEM includes the best available lidar known to exist at the time of DEM creation that met project specifications. This DEM includes data for Acadia, Iberia, Lafayette, St. Martin, St. Mary, and Vermilion Parishes.
The DEM was produced from the following lidar data sets: 1. 2017 Upper Delta Plain LA Lidar 2. 2017 Chenier Plain LA Lidar 3. 2015 South Terrebonne Lidar 4. 2012 - 2013 USGS Louisiana Lidar: Atchafalaya Basin 5. 2006 LA Statewide Lidar
The DEM is referenced vertically to the North American Vertical Datum of 1988 (NAVD88, Geoid12B) with vertical units of meters and horizontally to the North American Datum of 1983 (NAD83). The resolution of the DEM is approximately 3 meters. |
* Purpose |
The NOAA Office for Coastal Management has developed high-resolution digital elevation models (DEMs) for use in the Office's Sea Level Rise and Coastal Flooding Impacts internet mapping application. These DEMs serve as source datasets used to derive data to visualize the impacts of inundation resulting from sea level rise along the coastal United States and its territories. |
Notes |
10911 |
Other Citation Details | |
• Supplemental Information |
Source data and their associated metadata are available at the following URLs: 1. 2017 Upper Delta Plain LA Lidar Download: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=8564 Metadata: https://www.fisheries.noaa.gov/inport/item/52981
2. 2017 Chenier Plain LA Lidar Download: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=8597 Metadata: https://www.fisheries.noaa.gov/inport/item/53710
3. 2015 South Terrebonne Lidar Download: http://viewer.nationalmap.gov/basic/ Metadata: http://viewer.nationalmap.gov/basic/
4. 2012 - 2013 USGS Louisiana Lidar: Atchafalaya Basin Download: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=4747 Metadata: https://www.fisheries.noaa.gov/inport/item/49765
5. 2006 LA Statewide Lidar Download: https://atlas.ga.lsu.edu/ or https://viewer.nationalmap.gov/basic/ Metadata: https://atlas.ga.lsu.edu/ |
DOI (Digital Object Identifier) | |
DOI Registration Authority | |
DOI Issue Date |
Keywords
Theme Keywords
Thesaurus | Keyword |
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Global Change Master Directory (GCMD) Science Keywords | EARTH SCIENCE > LAND SURFACE > GEOMORPHIC LANDFORMS/PROCESSES > COASTAL PROCESSES > FLOODING |
Global Change Master Directory (GCMD) Science Keywords | EARTH SCIENCE > LAND SURFACE > GEOMORPHIC LANDFORMS/PROCESSES > COASTAL PROCESSES > SEA LEVEL CHANGES |
Global Change Master Directory (GCMD) Science Keywords | EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION > DIGITAL ELEVATION/TERRAIN MODEL (DEM) |
ISO 19115 Topic Category | elevation |
None | Bathymetry/Topography |
None | DEM |
None | Digital Elevation Model |
None | elevation |
None | flooding |
None | inundation |
None | lidar |
None | sea level rise |
None | topography |
Temporal Keywords
Thesaurus | Keyword |
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* Spatial Keywords
Thesaurus | Keyword |
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Global Change Master Directory (GCMD) Location Keywords | CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > LOUISIANA |
None | Acadia Parish |
None | Iberia Parish |
None | Lafayette Parish |
None | St. Martin Parish |
None | St. Mary Parish |
None | Vermilion Parish |
Stratum Keywords
Thesaurus | Keyword |
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Platform Keywords
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Physical Location
• » Organization | Office for Coastal Management |
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• » City | Charleston |
• » State/Province | SC |
• Country | |
• » Location Description |
Data Set Information
* Data Set Scope Code | Data Set |
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• Data Set Type | |
• Maintenance Frequency | None Planned |
Maintenance Note | |
» Data Presentation Form | Image (digital) |
• Entity Attribute Overview | |
Entity Attribute Detail Citation | |
Entity Attribute Detail URL | |
Distribution Liability |
Any conclusions drawn from the analysis of this information are not the responsibility of the NOAA Office for Coastal Management or its partners. |
Data Set Credit | Acknowledgment of the NOAA Office for Coastal Management as a data source would be appreciated in products developed from these data, and such acknowledgment, as is standard for citation and legal practices for data source, is expected. |
Support Roles
* » Support Role | Distributor |
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* » Date Effective From | 2020-01 |
Date Effective To | |
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 |
Fax | |
Mobile | |
URL | https://coast.noaa.gov |
Business Hours | |
Contact Instructions |
* » Support Role | Metadata Contact |
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* » Date Effective From | 2020-01 |
Date Effective To | |
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 |
Fax | |
Mobile | |
URL | https://coast.noaa.gov |
Business Hours | |
Contact Instructions |
* » Support Role | Point of Contact |
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* » Date Effective From | 2020-01 |
Date Effective To | |
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 |
Fax | |
Mobile | |
URL | https://coast.noaa.gov |
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Extents
Currentness Reference | Ground Condition |
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Extent Group 1
Extent Description |
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Extent Group 1 / Geographic Area 1
* » W° Bound | -92.73963 |
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* » E° Bound | -91.08157 |
* » N° Bound | 30.49863 |
* » S° Bound | 29.23869 |
* » Description |
Extent Group 1 / Vertical Extent
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Extent Group 1 / Time Frame 1
* » Time Frame Type | Range |
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* » Start | 2006 |
End | 2017 |
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Spatial Information
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Spatial Representation
Grid Representation Used? | Yes |
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Video Representation Used? |
Grid Representation
Dimension Count | 3 | ||||||||||||
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Transformation Parameters Available? | No | ||||||||||||
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Reference Systems
Reference System
EPSG Code | EPSG:4269 | ||||||||||||||||||||||||||||
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Access Information
Data License | |
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Data License URL | |
Data License Statement | |
* » Security Class | Unclassified |
* Security Classification System | |
Security Handling Description | |
• Data Access Policy | |
» Data Access Procedure | |
• » Data Access Constraints |
None |
• Data Use Constraints |
The dataset is provided as is, without warranty to its performance, merchantable state, or fitness for any particular purpose. The entire risk associated with the results and performance of this dataset is assumed by the user. This dataset should be used strictly as a planning reference and not for navigation, permitting, or other legal purposes. |
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Distribution Information
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» Download URL | |
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URLs
URL | https://coast.noaa.gov/slr |
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Name | |
URL Type | Online Resource |
File Resource Format | |
Description |
URL | https://coast.noaa.gov/digitalcoast/tools/slr |
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Name | |
URL Type | Online Resource |
File Resource Format | |
Description |
URL | https://coast.noaa.gov/slrdata |
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URL Type | Online Resource |
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Description |
URL | https://coast.noaa.gov |
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URL Type | Online Resource |
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Technical Environment
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Data Quality
Representativeness | |
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Accuracy | |
Analytical Accuracy | |
Horizontal Positional Accuracy |
The DEM is derived from the source lidar data. Horizontal accuracy testing is not performed on the DEM. Lidar source data assumed to meet 1 meter horizontal accuracy. |
Vertical Positional Accuracy |
The DEM is derived from the source lidar data. Vertical accuracy is not tested on the DEM. Project specifications require all source lidar data used in constructing the DEM to meet FEMA Specifications for Flood Hazard Mapping. |
Quantitation Limits | |
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Completeness Report |
A visual qualitative check was performed to ensure data completeness. All available lidar data known at the time of DEM creation that meets project specifications has been used to develop the DEM. Known data gaps may exist where lidar coverage was incomplete. |
Conceptual Consistency |
Data covers the tile scheme provided for the project area. Elevation data checked for anomalous elevation values outside expected range. |
» Quality Control Procedures Employed |
Data Management
» Have Resources for Management of these Data Been Identified? | |
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» Do these Data Comply with the Data Access Directive? | |
» Is Access to the Data Limited Based on an Approved Waiver? | |
» If Distributor (Data Hosting Service) is Needed, Please Indicate | |
» Approximate Delay Between Data Collection and Dissemination | |
» If Delay is Longer than Latency of Automated Processing, Indicate Under What Authority Data Access is Delayed |
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» Actual or Planned Long-Term Data Archive Location | |
» If World Data Center or Other, Specify | |
» If To Be Determined, Unable to Archive, or No Archiving Intended, Explain |
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» Approximate Delay Between Data Collection and Archiving | |
» How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive? |
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Lineage
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Sources
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Process Steps
Process Step Number | 1 |
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» Description |
The source elevation datasets listed above were identified, downloaded, edited, and finalized. |
Process Date/Time | 2019-11-01 00:00:00 |
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Source |
Process Step Number | 2 |
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» Description |
Source elevation data and their associated hydro-breaklines, where available, were downloaded. Data were then reviewed and edited to meet the project's requirements. The major requirements were delineating streams 10m or greater in width, removing bridges over streams greater than 10m wide, flattening inland water bodies, and converting data referenced to an older geoid to the current geoid, Geoid 12B. NOAA's VDatum datum conversion tool was used to convert geoids. Ocean-connected water areas were removed from data prior to final mosaicking. Data were then mosaicked together based on date, with the most recent data taking priority. Ocean-connected water areas were given a value of -99 to standardize this area's value across sources, to flatten water for mapping, and to make it easy for users to remove ocean-connected water if desired. |
Process Date/Time | 2019-11-01 00:00:00 |
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Acquisition Information
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FAQs
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Child Items
Rubric scores updated every 15m
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Catalog Details
Catalog Item ID | 58494 |
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Metadata Record Created By | William Brooks |
Metadata Record Created | 2020-01-09 16:25+0000 |
Metadata Record Last Modified By | SysAdmin InPortAdmin |
» Metadata Record Last Modified | 2023-05-30 18:09+0000 |
Metadata Record Published | 2020-06-29 |
Owner Org | OCM |
Metadata Publication Status | Published Externally |
Do Not Publish? | N |
Metadata Workflow State | Published / External |
Metadata Last Review Date | 2020-06-29 |
Metadata Review Frequency | 1 Year |
Metadata Next Review Date | 2021-06-29 |
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