Observation of mega-dune evaporation after various rain events in the hinterland of Badain Jaran Desert, China

Local atmospheric precipitation does not significantly contribute to recharging the groundwater system in the hinterland of Badain Jaran Desert, China. This conclusion was drawn from a study analyzing evaporation on mega-dune surfaces following various rain events, categorized into conventional precipitation (CP), ordinary annual maximum (OAM), and extreme precipitation (EP). The research used long-term precipitation records, automatic weather station data, and eddy covariance system measurements to assess evaporation patterns. Results showed that CP and OAM evaporated within 1-3 days and 3-4 weeks, respectively, while EP required a prolonged period due to the upper dry sand layer's influence. These findings provide insight into the formation mechanisms of lakes in this unique desert region.

Ma, N., Wang, N., Zhao, L., Zhang, Z., Dong, C., & Shen, S. (2013). Observation of mega-dune evaporation after various rain events in the hinterland of Badain Jaran Desert, China. Chinese Science Bulletin, 59(2), 162–170. https://doi.org/10.1007/s11434-013-0050-3