Floods are probably the most recurring natural hazard or even human development initiated calamity in the Indian subcontinent. The syndrome is mostly seen with the Himalayan rivers. The Koshi River originates in the Tibet (China) and Nepal altitudes, the catchment being given birth by Mt.Everest and Mt.Khangchendzonga. The River finally joins the River Ganga in the state of Bihar, India. We all remember the Koshi Flood of August 2008 and it is said that it is mainly because of the change of course for the first time after 1950. We have all seen the changing courses of the Himalayan Rivers and forming large fans. This is an yearly event, but the mega floods comes once in 50 years or so, like the mega Earthquakes or even Bamboo flowering. In regard to our Rivers, we can be more cautious and responsible scientifically, less interfering in the name of development and more traditional in our respect for the resource. Sometimes there are hopes as we see in this press release:
Canberra, Australia, 25 June 2013 - Scientists from Australia’s national science agency, CSIRO, are applying their knowledge in transboundary river basin management to improve the livelihoods of people living in some of the poorest parts of Asia. CSIRO and its partners have begun work in the Koshi River Basin which stretches from China, across the Himalayas through Nepal and discharges into the Ganges River in India.
The Koshi Basin is home to millions of people who rely on its fertile floodplains for their livelihoods. There is growing pressure to address development challenges in the Basin, in particular population growth and an increasing demand for energy, whilst working within constraints of natural hazards exacerbated by a changing climate, such as floods, drought, landslides, sediment movement and debris flow.
In a collaborative four-year project, scientists from CSIRO’s Water for a Healthy Country Flagship will provide technical assistance to the International Centre for Integrated Mountain Development’s (ICIMOD) Koshi Basin Programme. CSIRO scientists will develop an integrated basin-wide modelling system to improve management of the Koshi River Basin. This system will incorporate information on water availability, freshwater environments and the ecosystem services they provide and social considerations such as the effect of changes in water availability on livelihoods. The system will contribute to development in the Koshi Basin in a socially and environmentally sustainable manner and support national and transboundary water reforms.
“Australia has a long history of managing a scarce and variable water resource, and sharing this resource amongst competing users,” said CSIRO’s Water for a Healthy Country Flagship Director, Dr Carol Couch. “There is much the Australian water experience will bring to this project to help improve sustainable development and climate resilience, reduce water stress, and inform water-related decision making and transboundary issues. We will draw on the suite of large river basin assessments undertaken across Australia in recent years, such as the Murray-Darling Basin Sustainable Yields assessment.
“Research will be undertaken as a partnership between Australian organisations and ICIMOD researchers, based in Nepal. We will also be learning from ICIMOD, particularly in relation to sediment movement, snow melt and glacial processes,” said Dr Couch.
“At ICIMOD, we have taken a long-term, transboundary approach to support river basin management. This includes testing, piloting, and monitoring the innovations needed to address common issues related to climate change, cryosphere, water resources management and livelihood promotion,” said Dr David Molden, Director General of ICIMOD.
“The Koshi Basin Programme will provide a platform for national and international researchers and decision makers to come together to promote transboundary cooperation and integrated water resource management practices and policies. This will also include the development of measures for risk management as well as equitable access to water for energy and food security,” said Dr Molden.
Work undertaken by CSIRO this year will consist of a review and analysis of the existing knowledge base, capacity building and the development of a prototype model for the Koshi River Basin that incorporates information on water, climate, hydropower, freshwater environments, irrigation and social issues including poverty alleviation. The knowledge gained from this project will culminate in the development of a robust integrated basin-wide modelling framework, using eWater’s hydrological modelling platform, Source.
This work is supported by the Australian Agency for International Development (AusAID) through the Sustainable Development Investment Strategy. Through the Strategy, AusAID works with a portfolio of partners to address the challenges of water, food and energy security in South Asia.
The International Centre for Integrated Mountain Development (ICIMOD) is a regional intergovernmental learning and knowledge sharing centre serving the eight regional member countries of the Hindu Kush Himalayan region – Afghanistan, Bangladesh, Bhutan, China, India, Myanmar, Nepal, and Pakistan.