DOI: 10.5281/zenodo.3878979
title: Land surface phenology based crop maps for Continental United States 2000-2018

description: This data collection contains annual maps of crop types for Continental United States for the period 2000-2018 at spatial resolution of ~231m derived using MODIS Land Surface Phenology. This data collection is a companion to the paper <strong><em>Konduri, V., Kumar, J., Hargrove, W. W., Hoffman, F. M., Ganguly, A. R. (2020) Mapping Crops Within the Growing Season Across the United States. Remote Sensing of Environment, Vol 251, 2020 </em></strong>https://doi.org/10.1016/j.rse.2020.112048, which describes the methodology for development of these datasets, validation metrics and analysis. <strong><strong>Files in collection (28): </strong></strong> <strong><em>crop_map_predicted_[YEAR].nc</em>: </strong>Annual crop type maps for YEAR = 2000-2018 <strong><em>Crop_map_legend.csv</em>: </strong>Legend for crop type categories in the maps (Category numbers and legends for crop types are consistent with those used by USDA Crop Data Layer) Maps of earliest date (Day of Year) of classification for eight dominant crop types for year 2015: <strong>earliest_classification_date_corn_CONUS.nc</strong> : Earliest date of classification for corn <strong>earliest_classification_date_soybeans_CONUS.nc</strong> : Earliest date of classification for soybeans <strong>earliest_classification_date_winter_wheat_CONUS.nc</strong> : Earliest date of classification for winter wheat <strong>earliest_classification_date_fallow_CONUS.nc</strong> : Earliest date of classification for fallow <strong>earliest_classification_date_other_hay_non_alfalfa_CONUS.nc</strong> : Earliest date of classification for other hay/non-alfalfa <strong>earliest_classification_date_alfalfa_CONUS.nc</strong> : Earliest date of classification for alfalfa <strong>earliest_classification_date_sorghum_CONUS.nc</strong> : Earliest date of classification for sorghum <strong>earliest_classification_date_rice_CONUS.nc</strong> : Earliest date of classification for rice <strong><strong>Data formats:</strong></strong> All map products are in gridded NetCDF format. Annual crop type maps use category types described in Crop_map_legend.csv. Earliest date of classification maps are encoded as Day of the Year. <strong><strong>Projection for geospatial data</strong> (in PROJ4 format):</strong> <pre><code class="language-bash">PROJCS["US_National_Atlas_Equal_Area", GEOGCS["sphere", DATUM["unknown", SPHEROID["Spherical_Earth",6370997,"inf"]], PRIMEM["Greenwich",0], UNIT["degree",0.0174532925199433]], PROJECTION["Lambert_Azimuthal_Equal_Area"], PARAMETER["latitude_of_center",45], PARAMETER["longitude_of_center",-100], PARAMETER["false_easting",0], PARAMETER["false_northing",0], UNIT["Meter",1]]</code></pre> <strong>Paper Citation:</strong> <strong><em>Konduri, V., Kumar, J., Hargrove, W. W., Hoffman, F. M., Ganguly, A. R. (2020) Mapping Crops Within the Growing Season Across the United States. Remote Sensing of Environment (in revision)</em></strong>
description: This research was partially sponsored by the U.S. Department of Agriculture, U.S. Forest Service, Eastern Forest Environmental Threat Assessment Center. Additional support was provided by the Biogeochemistry Feedbacks Scientific Focus Area (SFA), which is sponsored by the Regional and Global Climate Modeling (RGCM) Program in the Climate and Environmental Sciences Division (CESD) of the Biological and Environmental Research (BER) Program in the U. S. Department of Energy Office of Science. This research used resources of the Oak Ridge Leadership Computing Facility, which is a DOE Office of Science User Facility supported under Contract DE-AC05-00OR22725. This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan). Funding for Auroop R. Ganguly was provided by National Science Foundation (NSF) through its BIGDATA award 1447587 and CyberSEES award 1442728.