气候变化领域集成服务门户(CCPortal): Site-level model intercomparison of high latitude and high altitude soil thermal dynamics in tundra and barren landscapes

CCPortal

DOI	10.5194/tc-9-1343-2015
	Site-level model intercomparison of high latitude and high altitude soil thermal dynamics in tundra and barren landscapes
	Ekici A.; Chadburn S.; Chaudhary N.; Hajdu L.H.; Marmy A.; Peng S.; Boike J.; Burke E.; Friend A.D.; Hauck C.; Krinner G.; Langer M.; Miller P.A.; Beer C.
发表日期	2015
ISSN	19940416
卷号	9 期号:4
英文摘要	Modeling soil thermal dynamics at high latitudes and altitudes requires representations of physical processes such as snow insulation, soil freezing and thawing and subsurface conditions like soil water/ice content and soil texture. We have compared six different land models: JSBACH, ORCHIDEE, JULES, COUP, HYBRID8 and LPJ-GUESS, at four different sites with distinct cold region landscape types, to identify the importance of physical processes in capturing observed temperature dynamics in soils. The sites include alpine, high Arctic, wet polygonal tundra and non-permafrost Arctic, thus showing how a range of models can represent distinct soil temperature regimes. For all sites, snow insulation is of major importance for estimating topsoil conditions. However, soil physics is essential for the subsoil temperature dynamics and thus the active layer thicknesses. This analysis shows that land models need more realistic surface processes, such as detailed snow dynamics and moss cover with changing thickness and wetness, along with better representations of subsoil thermal dynamics. © Author(s) 2015.
学科领域	abandoned land; active layer; alpine environment; altitude; arctic environment; cold region; comparative study; freeze-thaw cycle; insulation; landscape; latitudinal gradient; moss; snow; soil temperature; soil texture; soil water; subsoil; thermodynamics; topsoil; tundra; Bryophyta
语种	英语
scopus关键词	abandoned land; active layer; alpine environment; altitude; arctic environment; cold region; comparative study; freeze-thaw cycle; insulation; landscape; latitudinal gradient; moss; snow; soil temperature; soil texture; soil water; subsoil; thermodynamics; topsoil; tundra; Bryophyta
来源期刊	Cryosphere
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/119854
作者单位	Department of Biogeochemical Integration, Max Planck Institute for Biogeochemistry, Jena, Germany; Earth System Sciences, University of Exeter, Laver Building, Exeter, United Kingdom; Department of Physical Geography and Ecosystem Science, Lund University, Lund, Sweden; Department of Geography, University of Cambridge, Cambridge, United Kingdom; Department of Geosciences, University of Fribourg, Fribourg, Switzerland; CNRS and Université Grenoble Alpes, LGGE, Grenoble, 38041, France; Laboratoire des Sciences du Climat et de l'Environnement, Gif-sur-Yvette, France; Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung, Potsdam, Germany; Met Office Hadley Centre, Exeter, United Kingdom; Department of Applied Environmental Science (ITM), Bolin Centre for Climate Research, Stockholm University, Stockholm, Sweden
推荐引用方式 GB/T 7714	Ekici A.,Chadburn S.,Chaudhary N.,et al. Site-level model intercomparison of high latitude and high altitude soil thermal dynamics in tundra and barren landscapes[J],2015,9(4).
APA	Ekici A..,Chadburn S..,Chaudhary N..,Hajdu L.H..,Marmy A..,...&Beer C..(2015).Site-level model intercomparison of high latitude and high altitude soil thermal dynamics in tundra and barren landscapes.Cryosphere,9(4).
MLA	Ekici A.,et al."Site-level model intercomparison of high latitude and high altitude soil thermal dynamics in tundra and barren landscapes".Cryosphere 9.4(2015).