气候变化领域集成服务门户(CCPortal): Evaluation of an improved intermediate complexity snow scheme in the ORCHIDEE land surface model

CCPortal

DOI	10.1002/jgrd.50395
	Evaluation of an improved intermediate complexity snow scheme in the ORCHIDEE land surface model
	Wang, Tao; Ottle, Catherine; Boone, Aaron; Ciais, Philippe; Brun, Eric; Morin, Samuel; Krinner, Gerhard; Piao, Shilong; Peng, Shushi
通讯作者	Wang, T (通讯作者)
发表日期	2013
ISSN	2169-897X
EISSN	2169-8996
起始页码	6064
结束页码	6079
卷号	118 期号:12
英文摘要	Snow plays an important role in land surface models (LSM) for climate and model applied over Fran studies, but its current treatment as a single layer of constant density and thermal conductivity in ORCHIDEE (Organizing Carbon and Hydrology in Dynamic Ecosystems) induces significant deficiencies. The intermediate complexity snow scheme ISBA-ES (Interaction between Soil, Biosphere and Atmosphere-Explicit Snow) that includes key snow processes has been adapted and implemented into ORCHIDEE, referred to here as ORCHIDEE-ES. In this study, the adapted scheme is evaluated against the observations from the alpine site Col de Porte (CDP) with a continuous 18year data set and from sites distributed in northern Eurasia. At CDP, the comparisons of snow depth, snow water equivalent, surface temperature, snow albedo, and snowmelt runoff reveal that the improved scheme in ORCHIDEE is capable of simulating the internal snow processes better than the original one. Preliminary sensitivity tests indicate that snow albedo parameterization is the main cause for the large difference in snow-related variables but not for soil temperature simulated by the two models. The ability of the ORCHIDEE-ES to better simulate snow thermal conductivity mainly results in differences in soil temperatures. These are confirmed by performing sensitivity analysis of ORCHIDEE-ES parameters using the Morris method. These features can enable us to more realistically investigate interactions between snow and soil thermal regimes (and related soil carbon decomposition). When the two models are compared over sites located in northern Eurasia from 1979 to 1993, snow-related variables and 20cm soil temperature are better reproduced by ORCHIDEE-ES than ORCHIDEE, revealing a more accurate representation of spatio-temporal variability.
关键词	ALBEDO FEEDBACK COVER DYNAMICS BOREAL FOREST CLIMATE VALIDATION ENERGY ASSIMILATION SENSITIVITY SIMULATION TEMPERATURE
英文关键词	Col de Porte; northern Eurasia; internal snow processes; model evaluation; ORCHIDEE; ORCHIDEE-ES
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000322129600012
来源期刊	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258241
推荐引用方式 GB/T 7714	Wang, Tao,Ottle, Catherine,Boone, Aaron,et al. Evaluation of an improved intermediate complexity snow scheme in the ORCHIDEE land surface model[J]. 中国科学院青藏高原研究所,2013,118(12).
APA	Wang, Tao.,Ottle, Catherine.,Boone, Aaron.,Ciais, Philippe.,Brun, Eric.,...&Peng, Shushi.(2013).Evaluation of an improved intermediate complexity snow scheme in the ORCHIDEE land surface model.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,118(12).
MLA	Wang, Tao,et al."Evaluation of an improved intermediate complexity snow scheme in the ORCHIDEE land surface model".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 118.12(2013).