This directory contains MODIS MOD17 8-day/0.05 degree Gross Primary Production (GPP) for 2000 - 2013 in a convenient GIS-friendly GeoTIFF format. Please see http://www.ntsg.umt.edu/project/mod17 for an overview of the MOD17 model and data product. -------------------------------------------------------------------------------- (1.) GENERAL DATASET INFORMATION -------------------------------------------------------------------------------- MOD17 MODEL/COLLECTION VERSION: 055 NOTES/REFERENCES: TEMPORAL RESOLUTION: 8-day SPATIAL RESOLUTION: 0.05 degree DATA FORMAT: GeoTIFF SPATIAL PROJECTION/TILING: WGS84 Geographic TEMPORAL EXTENT: 2000 - 2013 SPATIAL EXTENT: Global -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- (2.) VARIABLES -------------------------------------------------------------------------------- NAME: MOD17A2_GPP DESCRIPTION: 8-day Gross Primary Production total SCALE FACTOR: 0.1 (i.e.--multiply MOD17A2_GPP by 0.1 to get actual value) UNITS: g carbon m-2 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- (3.) INPUT DATA -------------------------------------------------------------------------------- INPUT METEOROLOGY: NCEP/NCAR Reanalysis II NOTES: http://climatedataguide.ucar.edu/reanalysis/ncep-reanalysis-r2 INPUT LAND COVER: MOD12Q1 Version 004; Type 2 NOTES: ftp://ftp.ntsg.umt.edu/pub/MODIS/NTSG_Products/MOD12Q1_FOR_MOD15-17/ INPUT FPAR/LAI: MOD15A2 Version 005 NOTES: Missing/cloud contaminated FPAR/LAI has been infilled. https://lpdaac.usgs.gov/products/modis_products_table/mod15a2 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- (4.) MAIN REFERENCES -------------------------------------------------------------------------------- Zhao, M., F. A. Heinsch, R. R. Nemani, and S. W. Running. (2005). Improvements of the MODIS terrestrial gross and net primary production global data set. Remote Sensing of Environment, 95: 164.176. Zhao, M., S. W. Running, and R. R. Nemani. (2006). Sensitivity of Moderate Resolution Imaging Spectroradiometer (MODIS) terrestrial primary production to the accuracy of meteorological reanalyses. Journal of Geophysical Research, 111, G01002. Zhao, M., S. W. Running. (2010). Drought-induced reduction in global terrestrial net primary production from 2000 through 2009. Science, 329: 940-943. -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- (5.) CONTACTS -------------------------------------------------------------------------------- Dr. Maosheng Zhao zhaoms@umd.edu or Numerical Terradynamic Simulation Group (NTSG) University of Montana http://www.ntsg.umt.edu/contact --------------------------------------------------------------------------------