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Climate warming sho...
Climate warming shortens ice durations and alters freeze and break-up patterns in Swedish water bodies
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- Hallerbäck, Sofia (author)
- Lund University,University of California, Irvine
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- Huning, Laurie S. (author)
- California State University, Los Angeles,University of California, Irvine
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- Love, Charlotte (author)
- University of California, Irvine
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- Persson, Magnus (author)
- Lund University,Lunds universitet,Avdelningen för Teknisk vattenresurslära,Institutionen för bygg- och miljöteknologi,Institutioner vid LTH,Lunds Tekniska Högskola,Division of Water Resources Engineering,Department of Building and Environmental Technology,Departments at LTH,Faculty of Engineering, LTH
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- Stensen, Katarina (author)
- Swedish Meteorological and Hydrological Institute
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- Gustafsson, David (author)
- Swedish Meteorological and Hydrological Institute
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- Aghakouchak, Amir (author)
- University of California, Irvine
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(creator_code:org_t)
- 2022-06-24
- 2022
- English 11 s.
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In: Cryosphere. - : Copernicus GmbH. - 1994-0416. ; 16:6, s. 2493-2503
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http://dx.doi.org/10... (free)
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Abstract
Subject headings
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- Increasing air temperatures reduce the duration of ice cover on lakes and rivers, threatening to alter their water quality, ecology, biodiversity, and physical, economical and recreational function. Using a unique in situ record of freeze and break-up dates, including records dating back to the beginning of the 18th century, we analyze changes in ice duration (i.e., first freeze to last break-up), freeze and break-up patterns across Sweden. Results indicate a significant trend in shorter ice duration (62 %), later freeze (36 %) and earlier break-up (58 %) dates from 1913-2014. In the latter 3 decades (1985-2014), the mean observed ice durations have decreased by about 11 d in northern (above 60°N) and 28 d in southern Sweden relative to the earlier three decades. In the same period, the average freeze date occurred about 10 d later and break-up date about 17 d earlier in southern Sweden. The rate of change is roughly twice as large in southern Sweden as in the northern part. Sweden has experienced an increase in occurrence of years with an extremely short ice cover duration (i.e., less than 50 d), which occurred about 8 times more often in southern Sweden than previously observed. Our analysis indicates that even a 1°C increase in air temperatures in southern (northern) Sweden results in a mean decrease of ice duration of 22.5 (±7.6) d. Given that warming is expected to continue across Sweden during the 21st century, we expect increasingly significant impacts on ice cover duration and hence, ecology, water quality, transportation, and recreational activities in the region.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Klimatforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Climate Research (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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