The water balance of the Bengal Basin including groundwater storage in the Bengal Aquifer System is critical to the security and economy of Bangladesh and West Bengal, India, but is susceptible to climate change and anthropogenic influences.
This research will explore the use of piezometric monitoring to make direct measurements of terrestrial water storage variations (ΔTWS) within the basin. Using hour-resolution groundwater pressure data recorded over 12 months in 2013-2014 at sites across the basin, soil-moisture data from the Global Land Data Assimilation System and additional measurements the research will enable:
(1) high-frequency resolution of ΔTWS within the Bengal Basin in the first large scale application of geological weighing lysimetry, and
(2) direct testing of Gravity Recovery and Climate Experiment (GRACE) satellite-based estimates of ΔTWS.
Training will be given in hydrogeological analysis, multidimensional data manipulation using ‘R’, and visualisation using ArcGIS.