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Soil moisture and h...
Soil moisture and hydrology projections of the permafrost region-a model intercomparison
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- Andresen, Christian G. (author)
- Los Alamos National Laboratory,University of Wisconsin-Madison
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- Lawrence, David M. (author)
- National Center for Atmospheric Research
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- Wilson, Cathy J. (author)
- Los Alamos National Laboratory
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- David McGuire, A. (author)
- University of Alaska Fairbanks
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- Koven, Charles (author)
- Lawrence Berkeley National Laboratory
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- Schaefer, Kevin (author)
- University of Colorado
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- Jafarov, Elchin (author)
- University of Colorado,Los Alamos National Laboratory
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- Peng, Shushi (author)
- University Grenoble Alpes,Peking University
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- Chen, Xiaodong (author)
- University of Washington,Pacific Northwest National Laboratory
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- Gouttevin, Isabelle (author)
- National Research Institute Of Science And Technology For Environment And Agriculture (irstea)
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- Burke, Eleanor (author)
- Met Office Hadley Centre for Climate Change
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- Chadburn, Sarah (author)
- University of Leeds
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- Ji, Duoying (author)
- Beijing Normal University
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- Chen, Guangsheng (author)
- Oak Ridge National Laboratory
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- Hayes, Daniel (author)
- University of Maine
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- Zhang, Wenxin (author)
- Lund University,Lunds universitet,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,MERGE: ModElling the Regional and Global Earth system,Institutionen för naturgeografi och ekosystemvetenskap,Centre for Environmental and Climate Science (CEC),Faculty of Science,Dept of Physical Geography and Ecosystem Science,University of Copenhagen
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(creator_code:org_t)
- 2020-02-05
- 2020
- English 15 s.
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In: Cryosphere. - : Copernicus GmbH. - 1994-0416. ; 14:2, s. 445-459
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Abstract
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- This study investigates and compares soil moisture and hydrology projections of broadly used land models with permafrost processes and highlights the causes and impacts of permafrost zone soil moisture projections. Climate models project warmer temperatures and increases in precipitation (P) which will intensify evapotranspiration (ET) and runoff in land models. However, this study shows that most models project a long-term drying of the surface soil (0-20 cm) for the permafrost region despite increases in the net air-surface water flux (P-ET). Drying is generally explained by infiltration of moisture to deeper soil layers as the active layer deepens or permafrost thaws completely. Although most models agree on drying, the projections vary strongly in magnitude and spatial pattern. Land models tend to agree with decadal runoff trends but underestimate runoff volume when compared to gauge data across the major Arctic river basins, potentially indicating model structural limitations. Coordinated efforts to address the ongoing challenges presented in this study will help reduce uncertainty in our capability to predict the future Arctic hydrological state and associated land-atmosphere biogeochemical processes across spatial and temporal scales.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Naturgeografi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Physical Geography (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Vattenteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Water Engineering (hsv//eng)
Publication and Content Type
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Cryosphere
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- By the author/editor
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Andresen, Christ ...
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Lawrence, David ...
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Wilson, Cathy J.
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David McGuire, A ...
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Koven, Charles
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Schaefer, Kevin
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show more...
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Jafarov, Elchin
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Peng, Shushi
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Chen, Xiaodong
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Gouttevin, Isabe ...
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Burke, Eleanor
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Chadburn, Sarah
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Ji, Duoying
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Chen, Guangsheng
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Hayes, Daniel
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Zhang, Wenxin
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Physical Geograp ...
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ENGINEERING AND ...
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and Civil Engineerin ...
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Cryosphere
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The Cryosphere
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Lund University