2007 Illinois Cropland
Data Layer Information (CDL)
The 2007 Illinois Cropland
Data Layer (CDL) was constructed from Indian Resourcesat-1
Advanced Wide Field Sensor (IRS AWiFS) imagery, courtesy
of USDA Foreign Agricultural Service. The ground truth
for this product utilized the NASS June Agricultural
Survey (approximately 398 sq. miles derived from a
stratified random Area Frame Survey).
The Cropland Data Layer was produced using
PEDITOR
software, modified supervised clustering
(ISODATA), and
maximum likelihood classifier. The CDL Atlas was created using ArcGIS software from the Environmental Systems Research Institute (ESRI). Each page contains a separate Illinois county.
To view the CDL Atlas, click on a county on the map to the left, or select from the list of Illinois counties below.
For more details, please visit:
http://datagateway.nrcs.usda.gov
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