Broad Thematic Area 1: Water Resource Management
Significance of Water Resources in the India Himalayan Region (IHR)
The Himalaya is known as "Water Tower of Asia" as perennial source
of fresh water. Hence, it plays a critical role in the major rivers
of Asia. The water resources serve some of the highly populated region
ohe world. However, in the current scenario available water resources
are under increasingly severe pressure from climate change and other global
drivers. Climate change alters rainfall patterns, soil moisture, humidity,
glacier-mass balance and river flow, and also causes changes to underground
water sources. At the same time, floods and droughts are rising in frequency,
intensity and severity. On the other hand, unprecedented population growth,
rapid urbanization, expansion of infrastructure, migration, land conversion
and pollution translate into changes in fluxes, pathways and stores of water,
and will create further pressures on water resources that will have a tremendous
impact on the natural environment. The Indian Himalaya Region (IHR), a part of
Himalaya also has huge water resources in its lakes, river and glaciers,
however yet under threat. It may also be due to changing rainfall pattern,
protracted droughts, fluctuating temperatures, more frequent and severe
weather events, including floods, potential for hydropower generation,
forest cover degradation and other anthropogenic activities. It outlines
the important of planning for management of all the Himalaya´s water resources.
Currently under this BTA, the NMHS-PMU has sanctioned following 25 demand
driven action research studies such as rejuvenate hills springs and stream,
establishing monitoring sites to assess water quality and ecological integrity
of water bodies, high-altitude meteorological analysis, developing Decision
Support System (DSSs)and water-induces disasters associate with GLOFs and LLOFs to
achieve a part of the water resource management in Himalaya region.