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What projections are used?

April 26, 2017projections Used

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What projections are used?

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Two geographic projections are included on the CD/DVD: Albers Equal-Area Conic with a spheroid of GRS 1980 and datum of NAD83 and the dominant Universal Transverse Mercator (UTM) zone with a spheroid and datum of WGS84. The native projection used to create the CDL is Albers. The CDL is reprojected to UTM as a final processing step in order to conform to NRCS Geospatial Data Gateway requirements.

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The CDL is processed using a Albers Equal-Area Conic Projection with a spheroid of GRS 1980 and datum of NAD83. The downloadable zip files from the SARS website and http://nassgeodata.gmu.edu/CropScape/ are offered in the Albers projection. In order to conform to the Geospatial Data Gateway requirements, the CDL is reprojected from Albers to the dominant Universal Transverse Mercator (UTM) zone with a spheroid and datum of WGS84.