gov.noaa.nmfs.inport:48106 eng UTF8 dataset Office for Coastal Management resourceProvider NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information pointOfContact 2026-04-30T00:00:00 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) EPSG::4269 NOAA Office for Coastal Management Sea Level Rise Data: 1-10 ft Sea Level Rise Inundation Extent NOAA_OCM_SLR_1to10ft_metadata 2023 publication NOAA/NMFS/EDM 48106 https://www.fisheries.noaa.gov/inport/item/48106 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information https://www.coast.noaa.gov/slr WWW:LINK-1.0-http--link Citation URL Online Resource download https://www.coast.noaa.gov WWW:LINK-1.0-http--link Citation URL Online Resource download https://coast.noaa.gov/slrdata WWW:LINK-1.0-http--link Citation URL Online Resource download https://coast.noaa.gov/digitalcoast/tools/slr WWW:LINK-1.0-http--link Citation URL Online Resource download 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 depicting 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 (slr) 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://www.coast.noaa.gov/slr These data depict the potential inundation of coastal areas resulting from a projected 0.5 to 10 feet rise in sea level above current Mean Higher High Water (MHHW) conditions in half foot increments. The process used to produce the data can be described as a modified bathtub approach that attempts to account for both local/regional tidal variability as well as hydrological connectivity. The process uses two source datasets to derive the final inundation rasters and polygons and accompanying low-lying polygons for each iteration of sea level rise: the Digital Elevation Model (DEM) of the area and a tidal surface model that represents spatial tidal variability. The tidal model is created using the NOAA National Geodetic Survey's VDATUM datum transformation software (http://vdatum.noaa.gov) in conjunction with spatial interpolation/extrapolation methods and represents the MHHW tidal datum in orthometric values (North American Vertical Datum of 1988). The model used to produce these data does not account for erosion, subsidence, or any future changes in an area's hydrodynamics. It is simply a method to derive data in order to visualize the potential scale, not exact location, of inundation from sea level rise. Both raster and vector data are provided for each sea level rise amount above MHHW. The raster data represent both the horizontal extent of inundation and depth above ground, in meters. The vector data represent the horizontal extent of both hydrologically connected and unconnected inundation. The vector "slr" data represent inundation that is hydrologically connected to the ocean. The vector "low" data represent areas that are hydrologically unconnected to the ocean, but are below the sea level rise amount and may also flood. For more information, contact coastal.info@noaa.gov. The purpose of these data is to show potential sea level rise inundation ranging from 0.5 to 10 feet above current Mean Higher High Water (MHHW) in half foot increments for the area. Although the water surface mapped represents a particular increase in sea level in feet above MHHW, the actual cell values in the raster datasets represent depth in meters. Acknowledgment of the NOAA Office for Coastal Management as a data source would be appreciated in products developed from these data, and suchacknowledgment as is standard for citation and legal practices for data source is expected. completed NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information pointOfContact NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information custodian asNeeded EARTH SCIENCE > LAND SURFACE > GEOMORPHIC LANDFORMS/PROCESSES > COASTAL PROCESSES > FLOODING EARTH SCIENCE > LAND SURFACE > GEOMORPHIC LANDFORMS/PROCESSES > COASTAL PROCESSES > SEA LEVEL CHANGES EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION > DIGITAL ELEVATION/TERRAIN MODEL (DEM) theme Global Change Master Directory (GCMD) Science Keywords 23.3 CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA place Global Change Master Directory (GCMD) Location Keywords 23.3 Bathymetry/Topography Shoreline flooding inundation sea level rise theme United States place DOC/NOAA/NOS/OCM > Office of Coastal Management, National Ocean Service, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2017-04-24 publication 8.5 Inundation project InPort otherRestrictions Cite As: Office for Coastal Management, [Date of Access]: NOAA Office for Coastal Management Sea Level Rise Data: 1-10 ft Sea Level Rise Inundation Extent [Data Date Range], https://www.fisheries.noaa.gov/inport/item/48106. NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose. otherRestrictions Access Constraints: None otherRestrictions Use Constraints: These data illustrate the scale of potential flooding, not the exact location, and do not account for erosion, subsidence, or future construction. Inundation is shown as it would appear during the highest high tides (excludes wind driven tides) with the sea level rise amount. These data should be used only as a screening-level tool for management decisions. As with all remotely sensed data, all features should be verified with a site visit. 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. otherRestrictions Distribution Liability: Any conclusions drawn from the analysis of this information are not the responsibility of the Office for Coastal Management or its partners. unclassified eng; US climatologyMeteorologyAtmosphere elevation environment oceans 144.5 -64.5 -14.5 49.276 | Currentness: Publication Date 2023 A detailed methodology for producing these data can be found via the following url: https://coast.noaa.gov/data/digitalcoast/pdf/slr-inundation-methods.pdf NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information distributor https://www.coast.noaa.gov/slr WWW:LINK-1.0-http--link https://www.coast.noaa.gov/slr Online Resource download https://www.coast.noaa.gov WWW:LINK-1.0-http--link https://www.coast.noaa.gov Online Resource download https://coast.noaa.gov/slrdata WWW:LINK-1.0-http--link https://coast.noaa.gov/slrdata Online Resource download https://coast.noaa.gov/digitalcoast/tools/slr WWW:LINK-1.0-http--link https://coast.noaa.gov/digitalcoast/tools/slr Online Resource download dataset Completeness Report The 0.5 - 10 ft inundation layers cover areas currently shown in the NOAA Sea Level Rise Viewer. The current status of areas of coverage for the tool can be accessed at: https://www.coast.noaa.gov/slr Conceptual Consistency Standard methods for determining sea level rise inundation were used. The vertical accuracy of these data is dependent on the source elevation data and the error associated with vertical datum conversions within NOAA's VDatum software. The process to derive the inundation rasters and polygons and low-lying area polygons is as follows: 1. A tidal surface is generated using NOAA VDATUM tool and various spatial interpolation/extrapolation routines, dependent upon the area being mapped. The surface generated represents the spatial variability of offsets between MHHW, a tidal datum and NAVD88, an orthometric datum. Each iteration (0.5-10ft) of slr is added to this base surface and subsequently used for mapping. 2. Using the DEM and the tidal surface (for each iteration of slr), raster calculations are made using ArcGIS Spatial Analyst Raster Calculation tool to generate multiple rasters, one 32-bit floating point raster representing depth of inundation and one 8-bit single value raster representing the extent of inundation. 3. The hydrologic connectivity of the single value raster is evaluated using an 8-sided neighborhood rule in ArcGIS using the Region Group tool. The output raster from this process is then used to create a "hydro-connected" raster for further analysis and data creation. The output raster is also used to create data representing unconnected 'low-lying' areas that are below the water surface. For more information, see the detailed mapping methods at https://coast.noaa.gov/digitalcoast/tools/slr.html. 2023-01-01T00:00:00 Source Contribution: The digital elevation model (DEM) of an area serves as one of two source datasets used to derive inundation outputs. | Type of Source Media: online digital data NOAA OCM Digital Elevation Models 2016-01-01 publication NOAA Office for Coastal Management https://www.coast.noaa.gov/slr WWW:LINK-1.0-http--link Source Citation URL Source Citation URL information originator 2023 Source Contribution: The tidal conversion surface of an area serves as one of two source datasets used to create the inundation outputs and is derived from NOAA National Geodetic Survey's VDATUM software. | Type of Source Media: online digital data NOAA OCM VDATUM Tidal Surface Models 2016-01-01 publication NOAA Office for Coastal Management https://vdatum.noaa.gov WWW:LINK-1.0-http--link Source Citation URL Source Citation URL information originator 2023