Announcement: The Spatial Analysis Research Section released ALL 2009 Cropland Data Layer Products during the week of January 4, 2010. The CDL now spans 47 States sans Florida. Florida will be processed/released during Spring '10.
The 2008 New Mexico CDL is also released.
These
products will be downloadable from this website or the Geospatial Data Gateway.
CDL data prior to 2009 is available for free at the Data Gateway.
For questions and/or comments please contact the
Geospatial Information Branch.
|
The Spatial Analysis Reseach Section released the 2009 Cropland Data Layer (CDL) for All Continental US States except Florida. These products were issued in unsmoothed format with associated metadata. The file sizes are quite large and range between 50 - 100 megabytes per download.
Click on the following links to download ...
Delta States (76 MB)
Alabama, Arkansas, Kentucky, Louisiana, Missouri, Mississippi, Tennessee
East and New England States (94 MB)
Connecticut, Delaware, Georgia, Massachusetts, Maryland, Maine, North Carolina, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, South Carolina, Virginia, Vermont, West Virginia
Great Plains States (77 MB)
Colorado, Kansas, North Dakota, Nebraska, Oklahoma, South Dakota
Midwestern States (85 MB)
Iowa, Illinois, Indiana, Michigan, Minnesota, Ohio, Wisconsin
Northwestern States (71 MB)
Idaho, Montana, Oregon, Washington, Wyoming
South Central States (67 MB)
New Mexico 2008-2009, Texas
Western States (47 MB)
Arizona, California, Nevada, Utah
The Cropland Data Layer (CDL) contains crop specific digital data
layers, suitable for use in geographic information systems (GIS)
applications. The CDL Program annually focuses on the
corn/soybean/rice/cotton agricultural regions in the Midwestern and
Mississippi Delta States with the focus of producing digital
categorized geo-referenced output products using imagery from the
ResourceSat-1 AWiFS
sensor. See the Indian Government's
National Remote Sensing Agency handbook for the Resourcesat-1
satellite. The CDL Program represents a cooperative venture between
three USDA Agencies (Headquarters units of NASS, the Foreign Agriculture Service IPA
group and the Farm Service Agency/Aerial Photography Field Office)
plus in-state agreements between NASS Field Offices and their
respective state government or university partners. Currently there are
numerous historical
research reports with more detailed information on NASS's general
uses of remote sensing and GIS.
The Cropland Data Layer
product contains statewide categorizations of ortho-rectified mosaicked
images using See5 software,
and are exported to GeoTIFF format. ESRI’s ArcReader
thin-client browser can be downloaded to view the
CDL's. Limitations of this data are declared.
The CD-ROM's and/or DVD’s are at cost of reproduction to the public.
Visit our cooperators sites to see
how they are using and enhancing the Cropland Data Layer products.
An independent CDL accuracy assessment performed by the University of Illinois at Urbana-Champaign Institute of Natural Resources Sustainability titled:
Assessment and Potential of the 2007 USDA-NASS Cropland Data Layer for Statewide Annual Land Cover Applications
|
