State-of-the-art potential of the GRACE satellite mission for solving modern hydrological problems

The paper presents main results of GRACE mission using in such fields study as estimations components basins water storage and balance, hydrological modeling. It is shown that error data the order 11 mm for watersheds with area about 100 000 km2 decreasing increasing basin area. This accuracy made it possible to identify long-term seasonal storage. shown, total Don 2002–2019 approximately equally caused by both soil moisture groundwater changes. At same time, minimum was already reached 2010, 2015. Since 2016, changes a little during winter period due, probably, increase number thaws thinning freezing layer this period. By meteorological stations precipitation cold European Russia value their systematic estimated, 20-25%. comparison values river north part Russia, according ECOMAG runoff modeling has good coincidence (NSE =0.78 0.89). In GRACE, shows smaller faster decline spring flood Currently, progress use hydrology limited low spatial-temporal resolution data, which, within framework itself, will not be improved coming years. principle operation can applied future various satellite constellations.