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Vance County, NC 2009 Digital Orthos


Download Link: http://data.nconemap.gov/geoportal/catalog/raster/download.page
Abstract: Fugro EarthData, Inc. collected ADS40-52/InfoTerra Pixel Factory-derived 200' scale imagery at a 6 inch pixel resolution. The period of collection was March 7, 2009 for Vance County. During the time of image acquisition two dual frequency GPS receivers were utilized. One receiver was operated on board the aircraft with the dual frequency antenna located directly over the camera. The second receiver was used as a base station. These receivers were in constant operation during the imagery mission and GPS phase data was collected at an epoch rate of 1 second. The airborne GPS data and IMU were used in combination with ground surveyed points to control the imagery. The digital orthos were cut to tiles measuring 5,000' x 5,000', and conform to the North Carolina Land Records Management Mapping Specifications 2004. The imagery fully encompasses all county boundaries. The North Carolina Floodplain Mapping Program Phase I (acquired 2001) and II (acquired 2003) lidar DEM's were used for the orthorectification.
Purpose: This data was collected and derived for the North Carolina Floodplain Mapping Program as part of an effort to update and modernize the Flood Insurance Rate Maps. This data set should be accompanied by both an associated metadata record and a data deliver index that includes unique database information for each tile of the data set.
Supplemental Information: The bounding coordinates in this metadata file delineate a rectangle which encompasses the orthophoto tile coverage for Vance County, NC. There is minor smoke present in tile 20195002.
Publication Date: 20090506
Originator: Vance County Government
Publisher: Fugro EarthData, Inc.
Time Period of Content:
Time Period Information:
Single Date/Time:
Calendar Date: 20090506
Time of Day: unknown
Currentness Reference: Publication Date
Status:
Progress: Complete
Maintenance and Update Frequency: As needed
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -78.525804
East Bounding Coordinate: -78.268157
North Bounding Coordinate: +36.551451
South Bounding Coordinate: +36.151945
Contact Organization: North Carolina Floodplain Mapping Program
Contact Person: Hope Morgan
Contact Electronic Mail Address: HMorgan@ncem.org
Contact Voice Telephone: 919-715-5711 Ext. 104
Contact Organization: North Carolina Floodplain Mapping Program
Horizontal Datum Name: North American Datum of 1983
Planar Distance Units: US Survey Feet
Ellipsoid Name: Geodetic Reference System 80
Map Projection Name: Lambert Conformal Conic
Distribution Liability: The North Carolina Mapping Program is charged with the development and maintenance of it's geographic database 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 the database may be reflected in the data supplied. The client must be aware of data 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.
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