globalchange  > 气候减缓与适应
DOI: 10.1007/s10584-015-1326-1
Scopus记录号: 2-s2.0-84925538260
论文题名:
Sensitivity of lake thermal and mixing dynamics to climate change
作者: Butcher J.B.; Nover D.; Johnson T.E.; Clark C.M.
刊名: Climatic Change
ISSN: 0165-0009
EISSN: 1573-1480
出版年: 2015
卷: 129, 期:2018-01-02
起始页码: 295
结束页码: 305
语种: 英语
Scopus关键词: Atmospheric temperature ; Climate models ; Ecosystems ; Lakes ; Mixing ; Reservoirs (water) ; Surface waters ; Temperature ; Water quality ; Average air temperature ; Bottom temperature ; Cold water fishery ; Cyanobacterial blooms ; Ecosystem services ; Lake sand reservoirs ; Surface water temperature ; Water temperatures ; Climate change
英文摘要: Warming-induced changes in lake thermal and mixing regimes present risks to water quality and ecosystem services provided by U.S. lakes and reservoirs. Modulation of responses by different physical and hydroclimatic settings are not well understood. We explore the potential effects of climate change on 27 lake “archetypes” representative of a range of lakes and reservoirs occurring throughout the U.S. Archetypes are based on different combinations of depth, surface area, and water clarity. LISSS, a one-dimensional dynamic thermal simulation model, is applied to assess lake response to multiple mid-21st century change scenarios applied to nine baseline climate series from different hydroclimatic regions of the U.S. Results show surface water temperature increases of about 77 % of increase in average air temperature change. Bottom temperature changes are less (around 30 %) for deep lakes and in regions that maintain mid-winter air temperatures below freezing. Significant decreases in length of ice cover are projected, and the extent and strength of stratification will increase throughout the U.S., with systematic differences associated with depth, surface area, and clarity. These projected responses suggest a range of future challenges that lake managers are likely to face. Changes in thermal and mixing dynamics suggest increased risk of summer hypoxic conditions and cyanobacterial blooms. Increased water temperatures above the summer thermocline could be a problem for cold water fisheries management in many lakes. Climate-induced changes in water balance and mass inputs of nutrients may further exacerbate the vulnerability of lakes to climate change. © 2015, The Author(s).
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/84667
Appears in Collections:气候减缓与适应
气候变化事实与影响

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作者单位: Tetra Tech, Inc., PO Box 14409, Research Triangle Park, NC, United States; U.S. Environmental Protection Agency, Office of Research and Development, Washington, DC, United States; U.S. Agency for International Development, West African Regional Office, Accra, Ghana

Recommended Citation:
Butcher J.B.,Nover D.,Johnson T.E.,et al. Sensitivity of lake thermal and mixing dynamics to climate change[J]. Climatic Change,2015-01-01,129(2018-01-02)
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