气候变化领域集成服务门户(CCPortal): Effects of short-term variability of meteorological variables on soil temperature in permafrost regions

CCPortal

DOI	10.5194/tc-12-741-2018
	Effects of short-term variability of meteorological variables on soil temperature in permafrost regions
	Beer C.; Porada P.; Ekici A.; Brakebusch M.
发表日期	2018
ISSN	19940416
卷号	12 期号:2
英文摘要	Effects of the short-term temporal variability of meteorological variables on soil temperature in northern high-latitude regions have been investigated. For this, a process-oriented land surface model has been driven using an artificially manipulated climate dataset. Short-term climate variability mainly impacts snow depth, and the thermal diffusivity of lichens and bryophytes. These impacts of climate variability on insulating surface layers together substantially alter the heat exchange between atmosphere and soil. As a result, soil temperature is 0.1 to 0.8 °C higher when climate variability is reduced. Earth system models project warming of the Arctic region but also increasing variability of meteorological variables and more often extreme meteorological events. Therefore, our results show that projected future increases in permafrost temperature and active-layer thickness in response to climate change will be lower (i) when taking into account future changes in short-term variability of meteorological variables and (ii) when representing dynamic snow and lichen and bryophyte functions in land surface models. © Author(s) 2018.
学科领域	active layer; bryophyte; climate change; data set; diffusivity; lichen; permafrost; soil temperature; warming; Arctic; bryophytes
语种	英语
scopus关键词	active layer; bryophyte; climate change; data set; diffusivity; lichen; permafrost; soil temperature; warming; Arctic; bryophytes
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/119209
作者单位	Department of Environmental Science and Analytical Chemistry (ACES), Stockholm University, Stockholm, 10691, Sweden; Bolin Centre for Climate Research, Stockholm University, Stockholm, 10691, Sweden; Uni Research Climate, Bjerknes Centre for Climate Research, Bergen, Norway
推荐引用方式 GB/T 7714	Beer C.,Porada P.,Ekici A.,et al. Effects of short-term variability of meteorological variables on soil temperature in permafrost regions[J],2018,12(2).
APA	Beer C.,Porada P.,Ekici A.,&Brakebusch M..(2018).Effects of short-term variability of meteorological variables on soil temperature in permafrost regions.Cryosphere,12(2).
MLA	Beer C.,et al."Effects of short-term variability of meteorological variables on soil temperature in permafrost regions".Cryosphere 12.2(2018).