Coastal Buildings at Less than 10 feet land elevation, and Areas Not Included

Metadata also available as

Metadata:

Identification_Information:
Citation:
Citation_Information:
Publication_Date: 20200701
Title:
Coastal Buildings at Less than 10 feet land elevation, and Areas Not Included
Geospatial_Data_Presentation_Form: vector digital data
Description:
Abstract:
Building footprints were obtained from VGIN, except for localities without footprint information (Charles City, King and Queen, Lancaster, Essex, Hopewell, and Colonial Heights) where building footprints were extracted from impervious land cover data.Areas outside of the study area were determined using the Chesapeake Bay Topobathy DEM.
Purpose:
The layer includes buildings footprints for primary structures on lands at generally less than 10 feet ground elevation, which are areas that may be most vulnerable to coastal inundation. Critical facilities were identified using USGS National Structures Dataset.
Also included is a polygon depicting areas of Virginia that were not included in the analyses. These are lands generally higher than 10 feet in elevation and/or not contiguous with the Chesapeake Bay or Atlantic Ocean.
Status:
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -83.675482
East_Bounding_Coordinate: -75.280590
North_Bounding_Coordinate: 39.466025
South_Bounding_Coordinate: 36.540597
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Categories
Theme_Keyword: elevation
Theme_Keyword: boundaries
Theme_Keyword: structure
Place:
Place_Keyword_Thesaurus: None
Place_Keyword:
Accomack County, Arlington County, Caroline County, Charles City County, Chesapeake Bay, Chesterfield County, City of Alexandria, City of Chesapeake, City of Colonial Heights, City of Fredericksburg, City of Hopewell, City of Petersburg, City of Portsmouth, City of Richmond, City of Suffolk, City of Williamsburg, Eastern Shore, Essex County, Fairfax County, Gloucester County, Hanover County, Henrico County, Isle of Wight County, James City County, King and Queen County, King George County, King William County, Lancaster County, Mathews County, Middlesex County, New Kent County, Newport News, Norfolk, Northampton County, Northumberland County, Poquoson, Prince George County, Prince William County, Richmond County, Stafford County, Surry County, Virginia, Virginia Beach, Westmoreland County, York County
Access_Constraints: None
Use_Constraints:
These data and related items of information have not been formally disseminated by NOAA, and do not represent any agency determination, view, or policy.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Virginia Institute of Marine Science (VIMS)
Contact_Person: Center for Coastal Resources Management (CCRM)
Contact_Address:
Address_Type: mailing
Address: PO Box 1346
City: Gloucester Point
State_or_Province: VA
Postal_Code: 23062
Country: US
Contact_Instructions: https://www.vims.edu/ccrm/
Data_Set_Credit:
CCRM, Virginia Geographic Information Network (VGIN), USGS National Structures Dataset, USGS Coastal National Elevation Dataset (CoNED) Project
Native_Data_Set_Environment: Version 6.2 (Build 9200) ; Esri ArcGIS 10.6.1.9270
Data_Quality_Information:
Lineage:
Process_Step:
Process_Description:
Study area/areas not included: Extracted areas with land elevation generally less than 3 meters (10 feet) from the Chesapeake Bay Topobathy DEM. To create a contiguous area, areas enclosed within (e.g., holes) a region of less than 10 feet were included in the study area. Similarly, areas that are less than 3 meters in elevation but not contiguous with the main study area adjacent to the waters were removed from the study area.
A polygon of areas of Virginia outside of this study area was created for web viewer display.
Process_Date: 20180604
Process_Step:
Process_Description:
Buildings: Extracted all building footprints from VGIN data and included only those that were greater than 870 square feet (determined to be a decent cut off for eliminating secondary buildings). Middlesex data was building presence only so included all footprints greater than 500 square feet. All boathouses were eliminated.
Process_Date: 20180801
Process_Step:
Process_Description:
Buildings: Six localities did not have building polygons (Charles City, King and Queen, Lancaster, Essex, Hopewell, Colonial Heights). For these localities, impervious land cover was extracted and roads eliminated. Polygons greater than 870 square feet were kept as primary buildings.
Process_Date: 20180903
Process_Step:
Process_Description:
Buildings: Community facilities were identified using USGS National Structures Dataset, and that coding added to building footprints.
Process_Date: 20190416
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: 175913
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: WGS 1984 Web Mercator Auxiliary Sphere
Map_Projection_Parameters:
Other_Projection's_Definition:
PROJCS["WGS_1984_Web_Mercator_Auxiliary_Sphere",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Mercator_Auxiliary_Sphere"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",0.0],PARAMETER["Standard_Parallel_1",0.0],PARAMETER["Auxiliary_Sphere_Type",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",3857]]
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.00010000064208385229
Ordinate_Resolution: 0.00010000064208385229
Planar_Distance_Units: meter
Geodetic_Model:
Horizontal_Datum_Name: D WGS 1984
Ellipsoid_Name: WGS 1984
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257223563
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: VA_COUNTY
Entity_Type_Definition: Current County and Equivalent National
Entity_Type_Definition_Source: U.S. Census Bureau
Attribute:
Attribute_Label: OBJECTID
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: STCOFIPS
Attribute_Definition: Concatenated TIGER FIPS value for STATEFP & COUNTYFP fields
Attribute_Definition_Source: VGIN
Attribute:
Attribute_Label: GNIS
Attribute_Definition: Value of GNIS feature based on GNIS database
Attribute_Definition_Source: <http://geonames.usgs.gov/apex/f?p=136:1:0::::>:
Attribute:
Attribute_Label: NAME
Attribute_Definition: Current county name
Attribute_Definition_Source: U.S. Census Bureau
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name:
INCITS.31-2009, Codes for the Identification of the Counties and Equivalent Areas of the United States, Puerto Rico, and the Insular Areas of the United States (Formerly FIPS 6-4)
Codeset_Source: U.S. Census Bureau
Attribute:
Attribute_Label: NAMELSAD
Attribute_Definition:
Current name and the translated legal/statistical area description for county
Attribute_Definition_Source: U.S. Census Bureau
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name:
INCITS.31-2009, Codes for the Identification of the Counties and Equivalent Areas of the United States, Puerto Rico, and the Insular Areas of the United States (Formerly FIPS 6-4) and the translated legal/statistical area description code for county that appears in LSAD
Codeset_Source: U.S. Census Bureau
Attribute:
Attribute_Label: BuildID
Attribute_Definition: Identifier for building footprint.
Attribute:
Attribute_Label: Bld_MINFt
Attribute_Definition:
Minimum elevation (in feet) of the building footprint extracted from CBTBDEM.
Attribute:
Attribute_Label: Bld_MAXft
Attribute_Definition:
Maximum elevation (in feet) of the building footprint extracted from CBTBDEM.
Attribute:
Attribute_Label: Bld_FldZn
Attribute_Definition:
Indicates which FEMA Flood Hazard area the building footprint overlays.
Attribute:
Attribute_Label: Bld_Type
Attribute_Definition:
Community facility type extracted from USGS National Structures Dataset.
Attribute:
Attribute_Label: NNBFs_xing
Attribute_Definition:
The number of natural and nature-based features (NNBFs) that the Inundation Pathways (IPs) intersect. Inundation Pathways are the lowest elevation areas connecting the shoreline to each at-risk building in our focus area. Thus, it is assumed that any NNBF that lies between the building and the shoreline and on the IP confers benefits to the building.
Attribute:
Attribute_Label: Federal_Land
Attribute_Definition: Indicates whether the building lies on military-owned lands.
Attribute:
Attribute_Label: back_ID
Attribute_Definition: Descriptor field.
Attribute:
Attribute_Label: Shape_Length
Attribute_Definition: Length of feature in internal units.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:
Unrepresentable_Domain: Positive real numbers that are automatically generated.
Attribute:
Attribute_Label: Shape_Area
Attribute_Definition: Area of feature in internal units squared.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:
Unrepresentable_Domain: Positive real numbers that are automatically generated.
Attribute:
Attribute_Label: legend
Metadata_Reference_Information:
Metadata_Date: 20200918
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Virginia Institute of Marine Science (VIMS)
Contact_Person: Center for Coastal Resources Management (CCRM)
Contact_Address:
Address_Type: mailing
Address: PO Box 1346
City: Gloucester Point
State_or_Province: VA
Postal_Code: 23062
Country: US
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 Fri Sep 18 11:00:03 2020