NOAA Coastal Services Center Sea Level Rise Data: 1-6 ft Sea Level Rise Inundation Extent

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator:
Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Coastal Services Center (CSC)
Publication_Date: 20120101
Title:
NOAA Coastal Services Center Sea Level Rise Data: 1-6 ft Sea Level Rise Inundation Extent
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: Charleston, SC
Publisher: NOAA's Ocean Service, Coastal Services Center (CSC)
Online_Linkage: <http://www.csc.noaa.gov/slr>
Online_Linkage: <http://www.csc.noaa.gov>
Description:
Abstract:
These data were created as part of the National Oceanic and Atmospheric Administration Coastal Services Center'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: <http://www.csc.noaa.gov/slr> These data depict the potential inundation of coastal areas resulting from a projected 1 to 6 feet rise in sea level above current Mean Higher High Water (MHHW) conditions. 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.
Purpose:
The purpose of these data is to show potential sea level rise inundation ranging from 1 to 6 feet above current Mean Higher High Water (MHHW) 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 dataset represent depth in meters.
Supplemental_Information:
A detailed methodology for producing these data can be found via the following url: <http://www.csc.noaa.gov/slr/viewer/assets/pdfs/Inundation_Methods.pdf>
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20120101
Currentness_Reference:
The dataset is derived from the most recent elevation and VDATUM data available at date of processing.
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -71.918668
East_Bounding_Coordinate: -69.827408
North_Bounding_Coordinate: 42.878107
South_Bounding_Coordinate: 41.083248
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: climatologyMeteorologyAtmosphere
Theme_Keyword: elevation
Theme_Keyword: environment
Theme_Keyword: oceans
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Bathymetry/Topography
Theme_Keyword: sea level rise
Theme_Keyword: Shoreline
Theme_Keyword: inundation
Theme_Keyword: flooding
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: United States
Access_Constraints: None
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.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA Coastal Services Center
Contact_Address:
Address_Type: mailing and physical
Address: 2234 South Hobson Ave.
City: Charleston
State_or_Province: SC
Postal_Code: 29405-2413
Contact_Voice_Telephone: 843-740-1202
Contact_Electronic_Mail_Address: csc.info@noaa.gov
Data_Set_Credit:
Acknowledgment of the NOAA Coastal Services Center 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.
Native_Data_Set_Environment:
Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.1.1.3143
Data_Quality_Information:
Logical_Consistency_Report:
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.
Completeness_Report:
The 1 - 6 ft inundation layers cover areas currently shown in the NOAA CSC Sea Level Rise and Coastal Flooding Impacts Viewer. The current status of areas of coverage for the tool can be accessed at: <http://www.csc.noaa.gov/slr>
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: NOAA Coastal Services Center
Publication_Date: 20120101
Title: NOAA CSC Digital Elevation Models
Online_Linkage: <http://www.csc.noaa.gov/slr>
Type_of_Source_Media: onLine
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20120101
Source_Currentness_Reference:
The dataset is derived from the most recent elevation available at date of processing.
Source_Citation_Abbreviation: CSC DEMs
Source_Contribution:
The digital elevation model (DEM) of an area serves as one of two source datasets used to derive inundation outputs.
Source_Information:
Source_Citation:
Citation_Information:
Originator: NOAA Coastal Services Center
Publication_Date: 20120101
Title: NOAA CSC VDATUM Tidal Surface Models
Online_Linkage: <http://vdatum.noaa.gov>
Type_of_Source_Media: onLine
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20120101
Source_Currentness_Reference:
The dataset is derived from the most recent VDATUM data available at date of processing.
Source_Citation_Abbreviation: CSC VDATUM Tidal Surfaces
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.
Process_Step:
Process_Description:
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 (1-6ft) 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 RegionGroup tool. The output raster from this process is then converted to a vector polygon feature class for further analysis. Using this 'base' feature class, a new feature class is created representing hydrologically connected areas. The 'base' feature class is also used to create a feature class representing unconnected 'low-lying' areas.
Source_Used_Citation_Abbreviation: CSC DEMs
Source_Used_Citation_Abbreviation: CSC VDATUM Tidal Surfaces
Process_Date: 20120101
Process_Step:
Process_Description:
The Massachusetts Office of Coastal Zone Management (CZM) received the data from NOAA as a geodatabase of individual datasets for current mean higher high water and 1-6 ft sea level rise inundation extents. Each dataset was projected to the Massachusetts State Plane Coordinate System, Mainland Zone (FIPS zone 2001), meters, dissolved, and converted from multipart to singlepart features in ArcGIS. A field of the sea level rise inundation extent was added to each dataset. The individual layers were then combined into one feature class using the Union tool. The combined dataset was dissolved based on the sea level rise inundation field. Finally, the features were converted from multipart to singlepart features and the current mean higher high water polygons were subdivided into 10x10-minute grid cells to improve drawing performance.
Process_Date: 20130910
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Massachusetts Office of Coastal Zone Management
Contact_Position: CZM Data Manager
Contact_Address:
Address_Type: mailing and physical
Address: 251 Causeway Street, Suite 800
City: Boston
State_or_Province: MA
Postal_Code: 02114-2138
Country: USA
Contact_Voice_Telephone: 617-626-1200
Contact_Facsimile_Telephone: 617-626-1240
Contact_Electronic_Mail_Address: czm@state.ma.us
Hours_of_Service: 0900 hrs to 1600 hrs EST
Contact_Instructions: email only
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count: 1698684
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: NAD 1983 StatePlane Massachusetts Mainland FIPS 2001
Lambert_Conformal_Conic:
Standard_Parallel: 41.71666666666667
Standard_Parallel: 42.68333333333333
Longitude_of_Central_Meridian: -71.5
Latitude_of_Projection_Origin: 41.0
False_Easting: 200000.0
False_Northing: 750000.0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.000000008155898179040834
Ordinate_Resolution: 0.000000008155898179040834
Planar_Distance_Units: meter
Geodetic_Model:
Horizontal_Datum_Name: D North American 1983
Ellipsoid_Name: GRS 1980
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222101
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: MARI_BOX_slr_combined_0to6ft
Entity_Type_Definition: NOAA Coastal Services Center Sea Level Rise Data
Entity_Type_Definition_Source: CZM
Attribute:
Attribute_Label: FID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: SEA_LVL_RS
Attribute_Definition: Sea level rise inundation extent
Attribute_Definition_Source: CZM
Attribute_Domain_Values:
Unrepresentable_Domain: Description of features.
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA Coastal Services Center
Contact_Address:
Address_Type: mailing and physical
Address: 2234 South Hobson Ave.
City: Charleston
State_or_Province: SC
Postal_Code: 29405-2413
Contact_Voice_Telephone: 843-740-1202
Contact_Electronic_Mail_Address: csc.info@noaa.gov
Distribution_Liability:
Any conclusions drawn from the analysis of this information are not the responsibility of the Coastal Services Center or its partners.
Custom_Order_Process: This data may be downloaded at: <http://www.csc.noaa.gov/slr>
Metadata_Reference_Information:
Metadata_Date: 20130910
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA Coastal Services Center
Contact_Address:
Address_Type: mailing and physical
Address: 2234 South Hobson Avenue
City: Charleston
State_or_Province: SC
Postal_Code: 29405-2413
Contact_Voice_Telephone: 843-740-1202
Contact_Electronic_Mail_Address: csc.info@noaa.gov
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Generated by mp version 2.9.12 on Tue Sep 10 16:29:52 2013