Evaluating Water Controls on Vegetation Growth in the Semi-Arid Sahel Using Field and Earth Observation Data. - Abdulhakim M. Abdi; Niklas Boke-Olén; David E. Tenenbaum; Torbern Tagesson; Bernard Cappelaere; Jonas Ardö (Remote. Sens., 2017)

First assessment of the plant phenology index (PPI) for estimating gross primary productivity in African semi-arid ecosystems. - Abdulhakim M. Abdi; Niklas Boke-Olén; Hongxiao Jin; Lars Eklundh; Torbern Tagesson; V. Lehsten; Jonas Ardö (Int. J. Appl. Earth Obs. Geoinformation, 2019)