Estimation of the Key State and Parameters of Recharge Flux via Assimilation of SMAP Observations with Reduced-Adjoint Variational Data Assimilation Method

Parisa Heidary1, Leila Farhadi1 and Muhammad Umer Altaf2, (1)George Washington University, Washington, DC, United States, (2)King Abdullah University of Science and Technology, Thuwal, Saudi Arabia