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Statewide Elevation Contours - 2 Foot Interval


Download Link: http://data.nconemap.gov/downloads/vector/elevation/contours
Abstract: Statewide elevation contours for all 100 NC counties. Contours are based on 20 foot DEM grid cells generated from LIDAR.
Purpose: Use is intended for general purpose display of contour data for all counties in North Carolina and to assist governmental agencies and others in making resource management decisions through use of a Geographic Information System (GIS).
Supplemental Information: Consumers should not expect the contours to be exact and may contain small errors over open water or sound areas. The vertical datum used is NAVD 88. The accuracy of the LIDAR is about 25cm (10 inches), however, using two foot contours may be pushing data beyond the intended accuracy.
Publication Date: 201311
Originator: NC Dept. of Information Technology, Government Data Analytics Center, Center for Geographic Information and Analysis, NCDOT GIS Branch, NC Floodplain Mapping Program
Publisher: NC DOT - GIS Unit
Online Linkage: http://www.nconemap.gov
Time Period of Content:
Time Period Information:
Single Date/Time:
Calendar Date: 201311
Currentness Reference: publication date
Status:
Progress: Complete
Maintenance and Update Frequency: As Needed
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -84.417
East Bounding Coordinate: -75.382
North Bounding Coordinate: 36.602
South Bounding Coordinate: 33.785
Contact Voice Telephone: (919) 754-6580
Horizontal Datum Name: North American Datum of 1983
Planar Distance Units: survey feet
Ellipsoid Name: Geodetic Reference System 80
Map Projection Name: Lambert Conformal Conic
Attribute:
Attribute Label: Z_Feet
Attribute Definition: Identifies elevation in feet.
Attribute Definition Source: NC DOT - GIS Unit
Attribute Domain Values:
Unrepresentable Domain: Elevations differ by contour line.
Attribute:
Attribute Label: FIPS
Attribute Definition: Federal Information Processing Standard county code.
Attribute Definition Source: NC DOT - GIS Unit
Attribute Domain Values:
Unrepresentable Domain: Codes differ by county.
Attribute:
Attribute Label: LocGroup
Attribute Definition: Block identifier used during processing.
Attribute Definition Source: NC DOT - GIS Unit
Attribute Domain Values:
Unrepresentable Domain: Codes differ by contour line.
Attribute:
Attribute Label: LocXY
Attribute Definition: Block identifier used during processing.
Attribute Definition Source: NC DOT - GIS Unit
Attribute Domain Values:
Unrepresentable Domain: Codes differ by contour line.
Attribute:
Attribute Label: BaseContou
Attribute Definition: Base contour line in feet.
Attribute Definition Source: NC DOT - GIS Unit
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: 2
Enumerated Domain Value Definition: The 2 foot base contour. To display 2 foot contour interval BaseContou values 4, 20, and 100 must also be displayed.
Enumerated Domain Value Definition Source: NC DOT - GIS Unit
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: 4
Enumerated Domain Value Definition: The 4 foot base contour. To display 4 foot contour interval BaseContou equal to 20 and 100 must also be displayed.
Enumerated Domain Value Definition Source: NC DOT - GIS Unit
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: 20
Enumerated Domain Value Definition: The 20 foot contour. To display 20 foot contour interval BaseContou equal to 100 must also be displayed.
Enumerated Domain Value Definition Source: NC DOT - GIS Unit
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: 100
Enumerated Domain Value Definition: The 100 foot base contour. Display only this BaseContou value to display 100 foot contour interval.
Enumerated Domain Value Definition Source: NC DOT - GIS Unit
Attribute Measurement Frequency: As needed
Attribute:
Attribute Label: Shape_Leng
Attribute Definition: Length of contour line in feet.
Attribute Definition Source: NC DOT - GIS Unit
Attribute Domain Values:
Unrepresentable Domain: Lines differ in length.
Distribution Liability: NCCGIA is charged with the development and maintenance of NC OneMap and, in cooperation with other mapping organizations, is committed to offering its users accurate, useful, and current information. Although every effort has been made to ensure the accuracy of information, errors and conditions originating from physical sources used to develop this dataset may be reflected in the data supplied. The user must be aware of possible conditions and bear responsibility for the appropriate use of the information with respect to possible errors, original map scale, collection methodology, currency of data, and other conditions specific to certain data. NCCGIA does not support secondary distribution of this dataset without its current, compliant metadata record. The use of trade names or commercial products does not constitute their endorsement by NCCGIA or North Carolina State Government.
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