The national agricultural statistics service nass of the us department of agriculture usda produces the cropland data layer cdl product, which is a rasterformatted, georeferenced, cropspecific, land cover map. This is a brief tutorial on the cdltools package developed by lu chen and i to download and perform some simple analysis on usdas cropland data layer cdl. Oct 23, 2015 using cropscape crop land data layer nwcag. Usdanass 2017 north dakota cropland data layer north. The cdl also includes a crop mask layer and planting frequency layers, as well as boundary, water and road layers. The cdl is produced using satellite imagery from the indian remote sensing resourcesat1 irsp6 advanced wide field sensor awifs collected during the current growing season. Download cropland data layer geospatial metadata by state. The usda, nass cropland data layer cdl is a raster, georeferenced, cropspecific land cover data layer with a ground resolution of 56 meters.
This is the 2018 nass usda cdl dataset for minnesota. The cropland data layer cdl program provides the national agricultural statistics service nass with internal proprietary county and state level acreage indications of major crop commodities, and secondarily provides the public with statewide where available raster, georeferenced, categorized land cover data products after the public. Usda national agricultural statistics service cropland. This rasterformatted and georeferenced product has been widely used in such applications as disaster assessments, land cover and land use research, agricultural sustainability studies, and. The cdl is a raster, georeferenced, cropspecific land cover data layer created annually for the continental united states using moderate resolution satellite imagery and extensive agricultural ground truth. The cropland data layer cdl is a cropspecific land cover data layer created annually for the continental united states using moderate resolution satellite. Cropscape is the public user interface for the national land cover geospatial data product called cropland data layer cdl. Usdanass 20 north dakota cropland data layer north.
The dataset was clipped and downloaded using the usda nass cropscape. The dataset was clipped and downloaded using the usda nass cropscape online. The cdl is provided as is and the usda, nass does not warrant results you may obtain using the cropland data layer. The usda, nass cropland data layer cdl is a raster, georeferenced, crop specific land cover data layer with a ground resolution of 56 meters. The united states department of agriculture usda, national agricultural statistics service nass cropland data layer cdl is a raster, georeferenced, cropspecific land cover data layer. Usdanass 2010 north dakota cropland data layer north. The cdl program began with one state in 1997 and expanded to cover the entire continental united states in 2008. Users can download the national 2008 2019 cdls and the 2017, 2018 and 2019 confidence layers from national downloads. Cdl program inputs include medium resolution satellite imagery, usda collected ground truth and other ancillary data, such as the national land cover data set. Unfortunately, diff erent processing approaches can produce diff erent answers decision.
Mar 18, 2020 whether you are interested in seeing whats grown in your area or you are a researcher with more in depth informational needs, nasss cropscape is a valuable tool for you. An example of such a system on a regional scale is usda, nass cropland data layer cdl, which is a raster, georeferenced, crop specific land cover data layer with a ground resolution of 30 m. The cdl is produced using satellite imagery from the landsat 8 olitirs sensor, the disaster monitoring constellation dmc deimos1 and uk2, the isro resourcesat2 liss3, and the esa. Acrevalue provides crop history from the nass cropland data layer cdl. As the most widely used crop specific land use data, the cropland data layer cdl product covers the entire contiguous united states conus at 30meter spatial resolution with very high accuracy. Users of the cropland data layer cdl are solely responsible for interpretations made from these products. The cdl is produced using satellite imagery from the landsat 8 olitirs sensor and the disaster monitoring constellation dmc deimos1 and uk2 sensors collected during the current growing. Usdanass cropland data layer illinois 2007 clearinghouse. Fgdc content standards for digital geospatial metadata fgdc. The usda, nass cropland data layer cdl is a raster, georeferenced, cropspecific land cover data layer. Cropland data layer 2019, minnesota the united states department of agriculture usda, national agricultural statistics service nass cropland data layer cdl is a raster, georeferenced, cropspecific land cover data layer. The cropland data layer cdl provided is unique in that we mosaicked the state cdl layers together to form a continuous conus cdl layer.
The cropland data layer cdl, hosted on cropscape, provides a raster, georeferenced, cropspecific land cover map for the continental united states. The cdl is available for download either through the usda nrcs geospatial data gateway or the usda nass cropscape web site. Each dot represents a city with population greater than 50,000. Cropscape and cropland data layer national download. Cropscape cropland data layer the cropland data layer cdl, hosted on cropscape, provides a raster, georeferenced, cropspecific land cover map for the continental united states. International journal of applied earth observation and geoinformation 62, october, pp. Th e cdl provides digital data that can be used to determine land use changes. The awifs ground resolution is 56 meters by 56 meters.
Download the cropland data layer for the united states. The fccs layer is unique because it is a 30m resolution and the one provided to the public is a 1km resolution. The geospatial data product called the cropland data layer cdl is hosted on cropscape. Other land cover datasets are not useful for determining changes in crop rotation. Research and science cropland data layer releases usda nass. In the united states, the department of agricultures usda cropland data layer cdl provides an annual publicly available land cover classification map tailored toward crop identification boryan et al. This is the 2017 nass usda cdl dataset for minnesota.
Phenologybased assessment of perennial energy crops in north american tallgrass prairie. The boundary layer options provided are county, agricultural statistics districts asd, state, and region. The cropscape data portal allows for the display of the cropland data layer by year from 1997 to the present, as well as supporting layers such boundaries, water, and roads. The cdl is a raster, geo referenced, cropspecific land cover data layer. Im working with a clip of the cropland data layer raster, which has a number for each value coded to a crop type. The production of cdl is mainly based on moderate resolution satellite. A geopdf is a special type of pdf, affording both visualization of the land cover information, as well as providing the user some basic gis functions. However, meta data for many land uses including grasspasture, mixed forest, and shrubland were not posted. The usdanass cropland data layer cdl is an annual raster, georeferenced, cropspecific land cover data layer. Measuring landuse and landcover change using the u. Cropland data layer 2019, minnesota resources minnesota. Please note that no farmer reported data are derivable from the cropland data layer. Usda national agricultural statistics service information. Termed the cropland data layer, the product depicts type and location for crops planted during the summer 2009 growing season.
Cropland data layer 2018, minnesota the united states department of agriculture usda, national agricultural statistics service nass cropland data layer cdl is a raster, georeferenced, cropspecific land cover data layer. Cropland data layer how is cropland data layer abbreviated. These cropspecific, digital data layers are suitable for use in geographic information systems gis applications. One advantage of this is that the data is made available per county all using the same albers equal area projection. Usda, national agricultural statistics service, 2005 idaho.
Cropland data layer 2019, minnesota the united states department of agriculture usda, national agricultural statistics service nass cropland data layer cdl is a raster, georeferenced, crop specific land cover data layer. The usda, nass cropland data layer cdl is a raster, geo referenced. Find where your food is grown using nass cropland data layer. Cdl program inputs include medium resolution satellite imagery, usda collected ground truth and other ancillary data, such as. The cropland data layer cdl contains crop and other specific land cover classifications obtained using remote sensing for the conterminous united states. If you downloaded the cdl layer from the geospatial data gateway, its in the dominant i assume this means local utm zone with a spheroid and datum of wgs84. Cropland data layer 2017, minnesota the united states department of agriculture usda, national agricultural statistics service nass cropland data layer cdl is a raster, georeferenced, cropspecific land cover data layer. This tutorial will cover downloading cdl data, obtaining some zonal statistics, and explore land cover change. The entire archive of historical cdl products are available on cropscape for you to browse, interact, visualize, download, and query the cdl dataset without needing specialized software tools. Stratified estimates of the number of trees, forest area, biomass, and volume for wisconsin using both the national land cover dataset and cropland data layer.
Research and science national agricultural statistics. Nass cropland data layer wms cropscape cropland data layer epsg. Cropland data layer 2018, minnesota resources minnesota. The cdl is a raster, georeferenced, crop specific land cover data layer created annually for the continental united states using moderate resolution satellite imagery and extensive agricultural ground truth. Cropland data layer cdl are satellite images depicting agricultural land cover. These values are higher than the reported cdl crop specific accuracies of 61% in 2006 and 74.
This tabular data set represents the percent of land cover classes from the 20 crop land data layer compiled for two spatial components of the nhdplus version 2 data suite nhdplusv2 for the conterminous united states. The imagery was collected between may 4, 2002 and september 12, 2002. Over time, nass has expanded the number of states for which a cdl was created. Cropland data layer provides a raster, georeferenced, crop specific land cover map for the continental united states. This is the 2016 nass usda cdl dataset for minnesota. Usda, national agricultural statistics service, 2014 idaho.
Cropscape faqs metadata national download other cdl citations. As the most widely used cropspecific land use data, the cropland data layer cdl product covers the entire contiguous united states conus at 30meter spatial resolution with very high accuracy. The imagery was collected between the dates of 05172006 and 09302006. It is an annual product covering the entire conus at 30meter spatial resolution from 2008 to present and some states from 1997 to 2007. The cropland data layer cdl was created by the usda, national agricultural statistics service, research and development division, geospatial information branch, spatial analysis research section. National agricultural statistics service nass cropland data layer cdl is. The cropland data layer cdl, hosted on cropscape, provides a raster, georeferenced, crop specific land cover map for the continental united states. This is the 2019 nass usda cdl dataset for minnesota. Usdanass 2016 north dakota cropland data layer data. The agency has the distinction of being known as the fact finders of u. In addition to these original gis data products, a geopdf map of the revised 2007 illinois cdl is available for download see below. September 14, 2011 the cropscapecropland data layer project team received a group achievement award at the 63rd annual usda secretarys honor awards. Usda national agricultural statistics service iowa. The list of acronyms and abbreviations related to cdl cropland data layer.
Ag data commons providing central access to usdas open. Nass used remote sensing to produce a land use land cover data product for iowa called the cropland data layer cdl. The 2019 crop frequency layer identifies crop specific planting frequency and are based on land cover information derived from the 2008 through 2019 cdl s. The cdl has a ground resolution of 30 or 56 meters depending on the state and year. The usdanass cropland data layer cdl is an annual raster, georeferenced, crop specific land cover data layer. Cropland data layer provides a raster, georeferenced, cropspecific land cover map for the continental united states.
The national agricultural statistics service nass released the latest annual cdl at 30 meters. The imagery was collected between the dates of april 23, 2000 and september 15, 2000. Usda national agricultural statistics service research and. Purpose, the purpose of the cropland data layer program is to use satellite. Eugene yu center for spatial information sceince and systems research assistant professor postal. Nass publications cover a wide range of subjects, from traditional crops, such as corn and wheat, to specialties, such as mushrooms and flowers. The cropland data layer cdl is a cropspecific land cover data layer created annually for. The cdl is a raster, georeferenced, cropspecific land cover data layer created annually for the continental united states using moderate resolution.
The usdanass 2006 north dakota cropland data cdl is a raster, georeferenced, categorized land cover data layer produced using satellite imagery from the indian remote sensing irs advanced wide field sensor awifs. The purpose of the cropland data layer program is to use satellite imagery to 1 provide acreage estimates to the agricultural statistics board for the states major commodities and 2 produce digital, crop specific, categorized georeferenced output products. Usdanass 2017 north dakota cropland data layer nd gis hub. The images are a useful tool for monitoring crop rotation patterns, land use changes, water resources and carbon emissions. Cdl is defined as cropland data layer usda very frequently.
Usdanass 2000 north dakota cropland data layer north. The first cdl was produced in 1997 using data from landsat 5 and covered three states. The usda, nass cropland data layer cdl is a raster, georeferenced, crop specific land cover data layer. There are currently four individual crop frequency data layers that represent four major crops. The national agricultural statistics service nass released the latest annual cdl at 30 meters resolution on feb. Research and science cropscape and cropland data layer. Usda nass cropland data layers earth engine data catalog. The national agricultural statistics service nass of the us department of agriculture usda produces the cropland data layer cdl product, which is a rasterformatted, georeferenced, crop specific, land cover map. Usdanass 2006 north dakota cropland data layer north. Changes of crop rotation in iowa determined from the united. Usda national agricultural statistics service research. These crop specific, digital data layers are suitable for use in geographic information systems gis applications.
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