气候变化领域集成服务门户(CCPortal): Simulated effect of soil freeze-thaw process on surface hydrologic and thermal fluxes in frozen ground region of the Northern Hemisphere

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DOI	10.3724/SP.J.1226.2021.20059
	Simulated effect of soil freeze-thaw process on surface hydrologic and thermal fluxes in frozen ground region of the Northern Hemisphere
	Ma, Di; Luo, SiQiong; Guo, DongLin; Lyu, ShiHua; Meng, XianHong; Chen, BoLi; Luo, LiHui
通讯作者	Luo, SQ (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Land Surface Proc & Climate Change Cold &, Lanzhou 730000, Gansu, Peoples R China.
发表日期	2021
ISSN	1674-3822
起始页码	18
结束页码	29
卷号	13 期号:1
英文摘要	Soil freeze-thaw process is closely related to surface energy budget, hydrological activity, and terrestrial ecosystems. In this study, two numerical experiments (including and excluding soil freeze-thaw process) were designed to examine the effect of soil freeze-thaw process on surface hydrologic and thermal fluxes in frozen ground region in the Northern Hemisphere based on the state-of-the-art Community Earth System Model version 1.0.5. Results show that in response to soil freeze-thaw process, the area averaged soil temperature in the shallow layer (0.0175 -0.0451 m) decreases by 0.35 degrees C in the TP (Tibetan Plateau), 0.69 degrees C in CES (Central and Eastern Siberia), and 0.6 degrees C in NA (North America) during summer, and increases by 1.93 degrees C in the TP, 2.28 degrees C in CES and 1.61 degrees C in NA during winter, respectively. Meanwhile, in response to soil freeze-thaw process, the area averaged soil liquid water content increases in summer and decrease in winter. For surface heat flux components, the ground heat flux is most significantly affected by the freeze-thaw process in both summer and winter, followed by sensible heat flux and latent heat flux in summer. In the TP area, the ground heat flux increases by 2.82 W/m(2) (28.5%) in summer and decreases by 3.63 W/m(2) (40%) in winter. Meanwhile, in CES, the ground heat flux increases by 1.89 W/m(2) (11.3%) in summer and decreases by 1.41 W/m(2) (18.6%) in winter. The heat fluxes in the Tibetan Plateau are more susceptible to the freeze-thaw process compared with the high-latitude frozen soil regions. Soil freeze-thaw process can induce significant warming in the Tibetan Plateau in winter. Also, this process induces significant cooling in high-latitude regions in summer. The frozen ground can prevent soil liquid water from infiltrating to deep soil layers at the beginning of thawing; however, as the frozen ground thaws continuously, the infiltration of the liquid water increases and the deep soil can store water like a sponge, accompanied by decreasing surface runoff. The influence of the soil freeze-thaw process on surface hydrologic and thermal fluxes varies seasonally and spatially.
关键词	PERMAFROST DEGRADATION TIBETAN PLATEAU CLIMATE-CHANGE RUNOFF CYCLES
英文关键词	freeze-thaw effect; hydrologic and thermal; frozen ground; Northern Hemisphere
语种	英语
WOS研究方向	Physical Geography
WOS类目	Geography, Physical
WOS记录号	WOS:000616396000002
来源期刊	SCIENCES IN COLD AND ARID REGIONS
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253837
作者单位	[Ma, Di; Luo, SiQiong; Lyu, ShiHua; Meng, XianHong] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Land Surface Proc & Climate Change Cold &, Lanzhou 730000, Gansu, Peoples R China; [Ma, Di] Lanzhou Univ, Coll Atmospher Sci, Lanzhou 730000, Gansu, Peoples R China; [Guo, DongLin] Chinese Acad Sci, Nansen Zhu Int Res Ctr, Inst Atmospher Phys, Beijing 100029, Peoples R China; [Lyu, ShiHua] Chengdu Univ Informat Technol, Sch Atmospher Sci, Plateau Atmosphere & Environm Key Lab Sichuan Pro, Chengdu 610225, Sichuan, Peoples R China; [Chen, BoLi] Changzhou Meteorol Bur, Changzhou 213000, Jiangsu, Peoples R China; [Luo, LiHui] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soils Engn, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Ma, Di,Luo, SiQiong,Guo, DongLin,et al. Simulated effect of soil freeze-thaw process on surface hydrologic and thermal fluxes in frozen ground region of the Northern Hemisphere[J]. 中国科学院西北生态环境资源研究院,2021,13(1).
APA	Ma, Di.,Luo, SiQiong.,Guo, DongLin.,Lyu, ShiHua.,Meng, XianHong.,...&Luo, LiHui.(2021).Simulated effect of soil freeze-thaw process on surface hydrologic and thermal fluxes in frozen ground region of the Northern Hemisphere.SCIENCES IN COLD AND ARID REGIONS,13(1).
MLA	Ma, Di,et al."Simulated effect of soil freeze-thaw process on surface hydrologic and thermal fluxes in frozen ground region of the Northern Hemisphere".SCIENCES IN COLD AND ARID REGIONS 13.1(2021).