54435
NOAA Office for Coastal Management Coastal Inundation Digital Elevation Model: Washington, Northwest Puget Sound
WA PugetNW DEM
Data Set
Published / External
37230
Inundation
Project
Completed
2020-07
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 Washington, Northwest Puget Sound 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 Island, San Juan, Skagit, Snohomish, and Whatcom Counties.
The DEM was produced from the following lidar data sets:
1. 2019 NOAA Lidar: Padilla Bay NERR and Skagit River Delta, WA
2. 2016 West Washington Lidar
3. 2014 Island County, WA Lidar
4. 2014 USACE/USGS Topobathy Lidar: Puget Sound (WA)
5. 2014 PSLC Lidar: Cedar River Watershed Project - Delivery 1
6. 2013 Puget Sound Lidar Consortium (PSLC) Nooksack River Lidar
7. 2013 City of Bellingham Lidar
8. 2013 San Juan County, WA Lidar
9. 2009 Puget Sound Lidar Consortium (PSLC) Lidar: San Juan County and Lummi Island
10. 2006 USGS Lidar: North Puget Sound, Washington
11. 2005 Puget Sound Lidar Consortium (PSLC) Lidar: Nooksack River - Lummi Tribe (Puget Sound Lowland Project)
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.
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.
10911
Source data and their associated metadata are available at the following URLs:
1. 2019 NOAA Lidar: Padilla Bay NERR and Skagit River Delta, WA
Metadata: https://www.fisheries.noaa.gov/inport/item/58941
Data Download: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=9035
2. 2016 West Washington Lidar
Metadata: https://www.fisheries.noaa.gov/inport/item/51853
Data Download: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=6331
3. 2014 Island County, WA Lidar
Metadata: http://pugetsoundlidar.ess.washington.edu/lidardata
Data Download: http://pugetsoundlidar.ess.washington.edu/lidardata
4. 2014 USACE/USGS Topobathy Lidar: Puget Sound (WA)
Metadata: https://www.fisheries.noaa.gov/inport/item/50183
Data Download: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=4909
5. 2014 PSLC Lidar: Cedar River Watershed Project - Delivery 1
Metadata: https://www.fisheries.noaa.gov/inport/item/50177
Data Download: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=3674
6. 2013 Puget Sound Lidar Consortium (PSLC) Nooksack River Lidar
Metadata: https://www.fisheries.noaa.gov/inport/item/50172
Data Download: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=2615
7. 2013 City of Bellingham Lidar
Metadata: http://pugetsoundlidar.ess.washington.edu/lidardata
Data Download: http://pugetsoundlidar.ess.washington.edu/lidardata
8. 2013 San Juan County, WA Lidar
Metadata: http://pugetsoundlidar.ess.washington.edu/lidardata
Data Download: http://pugetsoundlidar.ess.washington.edu/lidardata
9. 2009 Puget Sound Lidar Consortium (PSLC) Lidar: San Juan County and Lummi Island
Metadata: https://www.fisheries.noaa.gov/inport/item/50158
Data Download: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=1464
10. 2006 USGS Lidar: North Puget Sound, Washington
Metadata: https://www.fisheries.noaa.gov/inport/item/49602
Data Download: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=1451
11. 2005 Puget Sound Lidar Consortium (PSLC) Lidar: Nooksack River - Lummi Tribe (Puget Sound Lowland Project)
Metadata: https://www.fisheries.noaa.gov/inport/item/50149
Data Download: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=2579
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.000027
Longitude_Resolution: 0.000027
Geographic_Coordinate_Units: Decimal degrees
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222101
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Datum_Name: North American Vertical Datum of 1988
Altitude_Resolution: 0.001
Altitude_Distance_Units: meters
Altitude_Encoding_Method: Explicit elevation coordinate included with horizontal coordinates
Theme
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > LAND SURFACE > GEOMORPHIC LANDFORMS/PROCESSES > COASTAL PROCESSES > FLOODING
Theme
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > LAND SURFACE > GEOMORPHIC LANDFORMS/PROCESSES > COASTAL PROCESSES > SEA LEVEL CHANGES
Theme
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION > DIGITAL ELEVATION/TERRAIN MODEL (DEM)
Theme
ISO 19115 Topic Category
elevation
Spatial
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > WASHINGTON
Theme
Bathymetry/Topography
Theme
DEM
Theme
Digital Elevation Model
Theme
elevation
Theme
flooding
Theme
inundation
Theme
lidar
Theme
sea level rise
Theme
topography
Spatial
Island County
Spatial
San Juan County
Spatial
Skagit County
Spatial
Snohomish County
Spatial
US
Spatial
Washington
Spatial
Whatcom County
Office for Coastal Management
Charleston
SC
Data Set
None Planned
Image (digital)
Any conclusions drawn from the analysis of this information are not the responsibility of the NOAA Office for Coastal Management or its partners.
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.
Distributor
2020-07
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Metadata Contact
2020-07
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Point of Contact
2020-07
Organization
NOAA Office for Coastal Management
NOAA/OCM
coastal.info@noaa.gov
2234 South Hobson Ave
Charleston
SC
29405-2413
(843) 740-1202
https://coast.noaa.gov
NOAA Office for Coastal Management Home Page
Online Resource
Ground Condition
-123.323785438
-121.842481501
49.0033558663
47.7743797093
Range
2005
2019
Yes
3
Area
No
Row
45603
Column
54966
Vertical
1
Unclassified
None
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.
https://coast.noaa.gov
Online Resource
https://coast.noaa.gov/digitalcoast/tools/slr
Online Resource
https://coast.noaa.gov/slr
Online Resource
https://coast.noaa.gov/slrdata
Online Resource
2016-09-19
Date that the source FGDC record was last modified.
2017-11-14
Converted from FGDC Content Standards for Digital Geospatial Metadata (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details.
2018-02-08
Partial upload of Positional Accuracy fields only.
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.
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.
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.
Data covers the tile scheme provided for the project area. Elevation data checked for anomalous elevation values outside expected range.
1
The source elevation datasets listed above were identified, downloaded, edited, and finalized.
2020-03-01T00:00:00
2
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.
2020-03-01T00:00:00
gov.noaa.nmfs.inport:54435
William Brooks
2018-10-25T16:05:01
SysAdmin InPortAdmin
2023-05-30T18:09:38
2019-03-25
Office for Coastal Management
OCM
1002
Public
No
2019-03-25
1 Year
2020-03-25