Annual Grass Biomass Mapping with Landsat-8 and Sentinel-2 Data Over Kruger National Park, South Africa. - Christian Berger 004; H. Lux; Marcel Urban; Christiane Schmullius; Jussi Baade; Christian Thiel 001; Corli Wigley-Coetsee; Izak P. J. Smit (IGARSS, 2020)