Multimodel assessment of water budget in Indian sub-continental river basins
The study showed that the multimodel ensemble mean of the five hydrological models performed better than individual models for most basins for water budget components. Estimation of the water budget is essential for water resources and environmental management. However, a reliable assessment of the water budget and water yield for the Indian sub-continental river basins has been lacking. The study used 0.25° gridded meteorological observations and five hydrological models (calibrated against observed streamflow and evaluated for evapotranspiration (ET) and soil moisture) to construct water budget estimates for the Indian sub-continental river basins for the 1951–2016 period. Our findings have implications for water resources planning and management in one of the world’s most populated regions.
Reference: Kushwaha, Anuj Prakash; Tiwari, Amar Deep; Dangar, Swarup; Shah, Harsh; Mahto, Shanti Shwarup and Mishra, Vimal, “Multimodel assessment of water budget in Indian sub-continental river basins”, Journal of Hydrology, DOI: 10.1016/j.jhydrol.2021.126977, vol. 603, Dec 2021
Unveiling the extent of salinization to delineate the potential submarine groundwater discharge zones along the North-western coast of India
The study investigates the sources of aquifer salinization and probable location of submarine groundwater discharge (SGD) using an integrated approach of major ion chemistry, statistical techniques, and isotopic signature of groundwater (GW). Results suggested that seawater intrusion heavily influences 42% of the total GW samples, whereas 58% samples showed the probability of SGD. The study recommends the feasible locations of check dams as a remedial measure for controlling the salinization of coastal aquifers.
Reference: Bhagat, Chandrashekhar; Mohapatra, Pranab K. and Kumar, Manish, “Unveiling the extent of salinization to delineate the potential submarine groundwater discharge zones along the North-western coast of India”, Marine Pollution Bulletin, DOI: 10.1016/j.marpolbul.2021.112773, vol. 172, Nov 2021
