Landsat based peak NDVI image Year 1998 Tile 2 Jiapeng Qu Fabian Ewald fassnacht Christopher Schiller Teja Kattenborn Xinquan Zhao 10.6084/m9.figshare.7737149.v1 https://springernature.figshare.com/articles/dataset/Landsat_based_peak_NDVI_image_Year_1998_Tile_2/7737149 Landsat based peak NDVI image Year 1998 Tile 2 2019-05-20 10:35:49 Tibetan Plateau grassland LANDSAT Grassland trends ndvi-difference MODIS Mann-Kendall trend test