Groundwater-related Land Deformation over the Mega Aquifer System in Saudi Arabia: Inferences from InSAR, GRACE, Earthquake records, Field, and Spatial Data Analysis.

Abdullah Othman1, Mohamed Sultan2, Richard Becker3, Saleh Sefry4, Talal Alharbi5, Hassan Alharbi4 and Esayas Gebremichael6, (1)Western Michigan University, Geosciences, Kalamazoo, United States, (2)Western Michigan University, Department of Geological and Environmental Sciences, Kalamazoo, MI, United States, (3)University of Toledo, Environmental Sciences, Toledo, OH, United States, (4)Saudi Geological Survey, Jeddah, Saudi Arabia, (5)King Saud University, Geology & Geophysics Department, Riyadh, Saudi Arabia, (6)Texas Christian University, Geological Sciences, Fort Worth, TX, United States