CHANSE: Coupled Human And Natural Systems Environment for water management under uncertainty in the Indo-Gangetic Plain


Lead PI/s

Dr Ana Mijic, Imperial College London
Prof. Subimal Ghosh, Indian Institute of Technology Bombay


Prof Slobodan Djordjevic, University of Exeter
Dr Chris Jackson, British Geological Survey
Dr Wouter Buytaert, Imperial College London

Prof Pradeep Mujumdar, IISc Bangalore
Dr Roxy Mathew Koll, IITM Pune
Dr Jagdish Krishnaswamy, ATREE
Prof Sunil Kumar Choudhary, University of Bihar


Dr Bhanu Neupane, UNESCO
Dr Vaibhav Chaturvedi, Council on Energy, Environment and Water
Prof Thiagarajan Jayaraman, Tata Institute of Social Sciences


UK NERC & Indian Ministry of Earth Sciences
Newton-Bhabha Fund: Sustaining Water Resources for Food, Energy & Ecosystem Services in India progarmme

Start and end date

April 2016 – March 2019

Summary of the project

The overarching aim of the research was to improve mapping and quantification of dominant interactions and feedbacks between human activities and the hydro-meteorological system of the Indo-Gangetic Plain (IGP). This project has provided information for improved decision-making on water allocation for agriculture, drinking water, ecosystems and other needs. Specifically, the CHANSE project was going to: (i) estimate surface and groundwater availability under current and future short-term weather predictions and anthropogenic activities within the IGP using a fully coupled, land surface-groundwater modelling setup; (ii) investigate the propagation, in space and time, of interactions of water uses and needs within the natural system by integrating novel consumer and ecological flow demand modules; (iii) provide regional predictions of decadal, seasonal and sub-seasonal monsoon rainfall and flood forecasting for the IGP to inform development of alternative water management strategies; (iv) translate the improved understanding of human and natural systems into IGP's water management planning for water, food and ecological security.

The project used the River Gandak sub-basin, which has been impacted by these issues, as a case-study catchment for process-understanding. Water management strategies and feedbacks of water allocation to local climate were analysed at the IGP basin level and the impacts the project has made on the Gandak Basin can be reviewed here.

Contact name/email

Dr Ana Mijic:

Prof. Subimal Ghosh: