Gravity variations determined from GRACE and GRACE-FO monthly solutions for analyzing water mass changes in the Aral Sea

The GRACE large-scale sequent GRACE-FO gravity satellite mission is providing monthly field solutions for almost 20 years enabling a unique opportunity to monitor mass variation processes. anomaly time series the Aral Sea region has been derived period of April 2002 January 2022. method determining from and improved by taking into account variations Caspian Sea. then compared estimates. For deriving anomaly, beyond available water volume data, density were determined salinity temperature changes. Unfortunately, no reliable information either on or changes accessible. Furthermore, not only data but also methodology reliable. Still, tests suggest that slight improvement in correlation due involvement occurs.