Global Land Survey Landsat data
The Landsat data used in this study come from the US Geological Survey Global Land Series (GLS). They have been orthorectified using geodetic and elevation control data to correct for positional accuracy and relief displacement and to ensure co-registration across epochal imagery. GLS 1990 This dataset consists of Landsat 4/5 TM imagery acquired for 1990 (+/- 3 years). However, individual scene dates may range from 1985 to 1996. GLS 2000 This dataset consists of Landsat 7 ETM+ imagery acquired for 2000 (+/- 1 year). GLS 2005 This dataset consist of Landsat 7 ETM+ and 5 TM imagery with core acquisition dates of 2005-2006. Data recorded in 2004 and 2007 is used as needed to fill areas of low image quality or excessive cloud cover. ETM+ scenes for this epoch have a data loss due to the Scan-Line Corrector failure in 2003. This requires combining two ETM+ scenes for each path/row to have complete, or near-complete, coverage. Landsat GLS data can be obtained at no cost from USGS EROS Data Center. | | External datasets used for auxiliary information
Global Ecological Zones (GEZ) 2000 Food and Agriculture Organization of the United Nations (FAO) metadata Terrestrial Ecoregions of the World World Wildlife Fund Olson, D.M., E. Dinerstein, E.D. Wikramanayake, N.D. Burgess, G.V.N. Powell, E.C. Underwood, J.A. D'Amico, I. Itoua, H.E. Strand, J.C. Morrison, C.J. Loucks, T.F. Allnutt, T.H. Ricketts, Y. Kura, J.F. Lamoreux, W.W. Wettengel, P. Hedao, and K.R. Kassem. Terrestrial Ecoregions of the World: A New Map of Life on Earth. BioScience 51:933-938. on-line access Vector Map Level 0 (VMAP0): Political boundaries data layer United States National Imagery and Mapping Agency (NIMA) on-line access SRTM Water Body Data (SWBD) National Geospatial-Intelligence Agency, National Aeronautics and Space Administration on-line access ETOPO2 Global 2-Minute Gridded Elevation Data U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Geophysical Data Center on-line access Vegetation Continuous Fields (VCF) University of Maryland, South Dakota State University Hansen, M., R.S. DeFries, J.R.G. Townshend, M. Carroll, C. Dimiceli, Sohlberg R.A. (2003), Global Percent Tree Cover at a Spatial Resolution of 500 Meters: First Results of the MODIS Vegetation Continuous Fields Algorithm. Earth Interactions, Vol 7, No 10, pp 1-15. on-line access World Map of the Koppen-Geiger climate classification updated University of Veterinary Medicine, Vienna Kottek, M., J. Grieser, C. Beck, B. Rudolf, and F. Rubel, 2006: World Map of the Koppen-Geiger climate classification updated. Meteorol. Z., 15, 259-263. on-line access WorldClim Climate Grids (V 1.4) Museum of Vertebrate Zoology (University of California, Berkeley) on-line access Global Administrative Unit Layers (GAUL) 2008 Food and Agriculture Organization of the United Nations (FAO) metadata |