Dr. Mohamed Sultan has been awarded National Academy of Science grant to study Nubian Sandstone Aquifer System (NSAS) in Egypt . The research will utilize Gravity Recovery and Climate Experiment (GRACE), Tropical Rainfall Measuring Mission (TRMM), CPC Merged Analysis of Precipitation (CMAP), Soil Moisture active Passive (SMAP), Global Land Data Assimilation System (GLDAS) Moderate Resolution …