Global Outlook for Ice and Snow: Chapter 8 - River and lake ice
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Date
2007Author
United Nations Environment Programme
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RT Generic T1 Global Outlook for Ice and Snow: Chapter 8 - River and lake ice A1 United Nations Environment Programme YR 2007 LK http://hdl.handle.net/20.500.11822/14479 PB AB TY - GEN T1 - Global Outlook for Ice and Snow: Chapter 8 - River and lake ice AU - United Nations Environment Programme Y1 - 2007 UR - http://hdl.handle.net/20.500.11822/14479 PB - AB - @misc{20.500.11822_14479 author = {United Nations Environment Programme}, title = {Global Outlook for Ice and Snow: Chapter 8 - River and lake ice}, year = {2007}, abstract = {}, url = {http://hdl.handle.net/20.500.11822/14479} } @misc{20.500.11822_14479 author = {United Nations Environment Programme}, title = {Global Outlook for Ice and Snow: Chapter 8 - River and lake ice}, year = {2007}, abstract = {}, url = {http://hdl.handle.net/20.500.11822/14479} } TY - GEN T1 - Global Outlook for Ice and Snow: Chapter 8 - River and lake ice AU - United Nations Environment Programme UR - http://hdl.handle.net/20.500.11822/14479 PB - AB -Metadata
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Floating freshwater ice is a key component of cold-regions river and lake systems. Ice creates and controls unique aquatic habitats and related biological productivity and diversity. It also poses major challenges (for example, flood threats) and opportunities (for example, transportation) for communities. Changes in freshwater-ice cover have largely mirrored trends in air temperature, with large regions of the Northern Hemisphere experiencing reductions in ice-cover duration characterized by earlier spring break ups and, to a lesser degree, later autumn freeze ups, particularly over the last 50 years. Although more dramatic changes in the timing and duration of the ice season are projected for the future, our understanding of how climate has affected or will alter the more important freshwater-ice processes (such as ice-cover composition, thickness and break-up dynamic,) remains poor. Improving our knowledge of these climate-ice relationships is the key to being able to properly adapt to, or even mitigate, future environmental change
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