(The Gist of PIB) Glacial Lake Atlas of Ganga River Basin

(THE GIST OF PIB) Glacial Lake Atlas of Ganga River Basin

[July-2021]

Glacial Lake Atlas of Ganga River Basin

• The Secretary, Department of Water Resources, River Development and Ganga Rejuvenation (DoWR, RD and GR) released the Glacial Lake Atlas of Ganga Basin.

About:

• The present glacial lake atlas is based on the inventoried glacial lakes in part of Ganga River basin from its origin to foothills of Himalayas covering a catchment area of 2,47,109 sq. km.
• The study portion of Ganga River basin covers part of India and transboundary region.
• The Atlas is available on Bhuvan portal of NRSC, ISRO, India WRIS Portal and National Hydrology Project (NHP) web site of DoWR, RD and GR.

The expected utility of the atlas is:

• The atlas provides a comprehensive and systematic glacial lake database for Ganga River basin with size > 0.25 ha
• In the context of climate change impact analysis, the atlas can be used as reference data for carrying out change analysis, both with respect to historical and future time periods
• The atlas also provides authentic database for regular or periodic monitoring changes in spatial extent (expansion/shrinkage), and formation of new lakes
• The atlas can also be used in conjunction with glacier information for their retreat and climate impact studies.

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Courtesy: PIB