CH SAMUREMBI CHANU
Articles written in Journal of Earth System Science
Volume 129 All articles Published: 20 October 2020 Article ID 0215 Research article
Use of GRACE time-series data for estimating groundwater storage at small scale
CH SAMUREMBI CHANU HARIKA MUNAGAPATI VM TIWARI ARVIND KUMAR L ELANGO
This study integrates the time series of satellite data, i.e. (terrestrial water storage (TWS) extracted from Gravity Recovery and Climate Experiment (GRACE), soil moisture (SM) from Global Land Data Assimilation System (GLDAS), rainfall from Tropical Rainfall Measuring Mission (TRMM)) with
$\bf{Highlights}$
$\bullet$ Areal extent of the study area is less than the optimum suggested for GRACE related investigation. The amplitude of the GRACE signal is 300 km and it is recommended that the study area to be larger than that. Our study is perhaps the first such attempt where the study area is much less than recommended.
$\bullet$ We were able to get a good correlation between $\Delta$GWGRACE and $\Delta$GWINSITU despite the challenge of spatial resolution.
$\bullet$ A significant finding of the investigation is that distinction in estimates of groundwater changes between GRACE estimates and
$\bullet$ The impact of various precipitation mechanisms in the examination area was contemplated.
Volume 129, 2020
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