10.6084/m9.figshare.7770299.v2 Jiapeng Qu Jiapeng Qu Fabian Ewald fassnacht Fabian Ewald fassnacht Christopher Schiller Christopher Schiller Teja Kattenborn Teja Kattenborn Xinquan Zhao Xinquan Zhao Landsat NDVI difference 1990 2002 Tile 1 Springer Nature 2019 Tibetan Plateau grassland LANDSAT Grassland trends ndvi-difference MODIS Mann-Kendall trend test 2019-05-22 09:10:27 Dataset https://springernature.figshare.com/articles/dataset/Landsat_NDVI_difference_1990_2002_Tile_1/7770299 Landsat NDVI difference 1990 2002 Tile 1