By National Research Council, Division of Behavioral and Social Sciences and Education, Committee on Population, Division on Earth and Life Studies, Water Science and Technology Board, Board on Atmospheric Studies and Climate, Hydrology, Climate Change, an
Clinical facts exhibits that the majority glaciers in South Asia's Hindu Kush Himalayan sector are chickening out, however the outcomes for the region's water provide are uncertain, this document reveals. The Hindu Kush Himalayan sector is the positioning of a number of of Asia's nice river platforms, which supply water for consuming, irrigation, and different makes use of for roughly 1.5 billion humans. contemporary reviews express that at reduce elevations, glacial retreat is not likely to reason major adjustments in water availability over the subsequent numerous many years, yet different components, together with groundwater depletion and lengthening human water use, may have a better impression. larger elevation components may possibly adventure altered water move in a few river basins if present premiums of glacial retreat proceed, yet shifts within the position, depth, and variability of rain and snow as a result of weather switch will most likely have a better effect on local water provides.
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Clinical facts exhibits that almost all glaciers in South Asia's Hindu Kush Himalayan sector are taking flight, however the outcomes for the region's water provide are uncertain, this file reveals. The Hindu Kush Himalayan zone is the site of a number of of Asia's nice river structures, which offer water for ingesting, irrigation, and different makes use of for roughly 1.
Extra resources for Himalayan Glaciers: Climate Change, Water Resources, and Water Security
2011). Various studies have also shown evidence that the summer monsoon has weakened over the past 50 years. , 2009; Ramesh and Goswami, 2007). , 2008). While current studies are consistent in finding that aerosols can substantially perturb the timing and intensity of the South Asian monsoon, further work is needed to clarify the magnitude of these effects and to determine the relative importance of the various proposed mechanisms. An additional important mechanism whereby absorbing aerosols may cause early melting of snowpack and accelerated glacier retreat is the so-called snow-darkening effect.
PREPUBLICATION COPY Copyright © National Academy of Sciences. All rights reserved. 1 Glacial area estimates (square kilometers) from different studies. Comparisons of glacial area among different studies are difficult because spatial extents are often different or not well categorized. Region Glacier Area (km2) Data Source HKH 114,800 WGMS (2008) 116,180 Xu, J. et al. (2009) 60,000 ICIMOD (2011b) 99,261 Yao, Tandong et al. (2012) Central HKH 33,050 WGMS (2008) 32,182 ICIMOD: Eriksson et al. (2009) 71,182 Indian Space Agency: ISRO (2011) Himalayas 33,050 Dyurgerov and Meier (1997, 2005) Karakoram 15,400 Dyurgerov and Meier (1997) 16,000 Dyurgerov and Meier (2005) 16,600 Yao, Tandong et al.
The workshop, which was held in the fall of 2011 in Washington, DC, was organized around four broad themes: 1) regional climate and meteorology; 2) regional hydrology, water supply, use, and management; 3) regional demography and security; and 4) risk factors and vulnerabilities. The workshop agenda and participants are included in Appendix A and workshop presentation summaries are included in Appendix B. Workshop participants identified key concepts about the HKH region. Starting from those concepts, the Committee used their expert judgment, reviews of the literature, and deliberation to develop conclusions about the physical geography, human geography and water resources, and environmental risk and security in the HKH region.
Himalayan Glaciers: Climate Change, Water Resources, and Water Security by National Research Council, Division of Behavioral and Social Sciences and Education, Committee on Population, Division on Earth and Life Studies, Water Science and Technology Board, Board on Atmospheric Studies and Climate, Hydrology, Climate Change, an