Integrated GRACE and GLDAS for Estimating Groundwater Storage potential
in Bankura District, West Bengal, India
Groundwater is a significant resource for water uses. Groundwater
depletion is becoming a global issue for water sustainability. Many
places of Globe are suffering to decrement of groundwater. India is
overexploiting this resource for irrigation, urbanization and
industrialization. In this study evaluation of groundwater storage
potential is taken into consideration for Bankura district, West Bengal.
Periodical data observed from November 2007 to January 2017 is perceived
for study purposes. Broadly remote sense method is used in this study.
In the present work Gravity Recovery and Climate Experiment (GRACE)
technique is applied for predicting groundwater changes. With the
inclusion of Global Land Data Assimilation Systems (GLDAS), performance
predictor implies good results. Estimation shows groundwater depletion
is amounting to be an average rate of 0.35cm/year. September 2011
experienced maximum positive groundwater changes with equivalent
thickness of 17.6722 cm, whereas in June 2013 the substantial change of
depletion is found to be -24.16828 cm. Both observed and estimated
groundwater changes are compared and have established the value of
correlation coefficient as 0.827.