Shingirai S Nangombe

ETH Zurich | ETH Zürich · Institute of Atmosphere and Climate Science

Southern Africa has been identified as one of the hotspot areas of climate extremes increasing, at the same time many communities in the region are dependent on rain-fed agriculture, which is vulnerable to these rainfall and temperature extremes. The aim of this study is to understand changes in extreme indices during the agricultural season under...

The recent mass mortality event of more than 330 African elephants in Botswana has been attributed to biotoxins produced by cyanobacteria; however, scientific evidence of this is lacking. Here, by synthesizing multiple sources of data, we show that, during the past decades, the widespread hypertrophic waters in southern Africa have entailed an extr...

Having updated knowledge of cropland extent is essential for crop monitoring and food security early warning. Previous research has proposed different methods and adopted various datasets for mapping cropland areas at regional to global scales. However, most approaches did not consider the characteristics of farming systems and apply the same class...

Having updated knowledge of cropland extent is essential for crop monitoring and food security early warning. Previous research has proposed different methods and adopted various datasets for mapping cropland areas at regional to global scales. However, most approaches did not consider the characteristics of farming systems and apply the same class...

With anthropogenic global warming, heat-related extreme events are projected to increase in severity and frequency. Already vulnerable regions like Africa will be hard-hit. Therefore, such regions could benefit from low global warming levels. Using the Community Earth System Model low warming simulations, we investigate changes in temperature extre...

Anthropogenic forcing is anticipated to increase the magnitude and frequency of extreme events¹, the impacts of which will be particularly hard-felt in already vulnerable locations such as Africa². However, projected changes in African climate extremes remain little explored, particularly in the context of the Paris Agreement targets3,4. Here, usin...

Despite the increasing severity of droughts and their effects on Zimbabwe’s agriculture, there are few tools available for predicting these droughts in advance. Consequently, communities and farmers are more exposed, and policy makers are always ill prepared for such. This study sought to investigate possible cycles and precursor meteorological con...

This study which sought to understand the phenomenal events surrounding numerous, intense and violent storms in southern Africa, was inspired by the unusually active 2012-2013 season. In addition to improving the Early warning system, the study supports the evaluation and calibration of the weather forecasting guidance NWP products and RCMs alike....