MODIS MOD17 annual/30-arcsec Net Primary Production (NPP) for 2000 - 2015 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: Annual (total of annual period) SPATIAL RESOLUTION: 30-arcsec (0.008333333333 deg) DATA FORMAT: GeoTIFF SPATIAL PROJECTION/TILING: WGS84 Geographic TEMPORAL EXTENT: 2000 - 2015 SPATIAL EXTENT: Global -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- (2.) VARIABLES -------------------------------------------------------------------------------- NAME: NPP DESCRIPTION: Annual Net Primary Production SCALE FACTOR: 0.1 (i.e.--multiply Npp_1km by 0.1 to get actual value) valid_range: 0 65500 _FillValue: 65535 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 --------------------------------------------------------------------------------