气候变化领域集成服务门户(CCPortal): Estimating Land Surface Energy and Water Fluxes by Using the Land Data Assimilation System developed at The University of Tokyo (LDASUT)

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DOI	10.1109/IGARSS.2009.5417848
	Estimating Land Surface Energy and Water Fluxes by Using the Land Data Assimilation System developed at The University of Tokyo (LDASUT)
	Lu, Hui; Koike, Toshio; Yang, Ku; Tsutsui, Hiroyuki; Tamagawa, Katsunori
通讯作者	Lu, H (通讯作者)
发表日期	2009
ISSN	2153-6996
起始页码	1968
结束页码	+
英文摘要	This paper reports an application of an Land Data Assimilation System developed in the University of Tokyo (LDASUT) on the Gaize PBL site at the northwest of Tibet Plateau, for the period from July to August, 2007. The objectives of this study are: (1) to validate LDASUT in bare soil field using in-situ observation, (2) to check the feasibility to estimate areal land surface variables reliably with using LDASUT driven by GCM output data. For the system validation, LDASUT was first driven by in-situ observed micrometeorological data, and simulated energy fluxes were compared to hourly direct measurements; simulated soil moisture content was compared to the in-situ soil moisture observation at the depth of 4 cm. The results show that LDAS can generally simulate those variables well and thus the capability of LDAS is validated. In order to check the possibility of applying LDAS globally and simulating surface energy and water budget worldwide, Japan Meteorology Agency (JMA) Model Output Local Time Series (MOLTS) data were used as the driven data of LDAS. Performance of LDAS was not so good when it was driven by the JMA MOLTS data. This result demonstrated that there were systemic biases lied in JMA MOLTS data in the study region and thus it can not directly apply to LSM or LDAS.
关键词	SOIL-MOISTURE AMSR-E VEGETATION EMISSION LENGTH MODEL
英文关键词	Land data assimilation system; soil moisture; energy fluxes; AMSR-E; MOLTS
语种	英语
WOS研究方向	Geology ; Remote Sensing
WOS类目	Geosciences, Multidisciplinary ; Remote Sensing
WOS记录号	WOS:000281054101170
来源期刊	2009 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, VOLS 1-5
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/257658
推荐引用方式 GB/T 7714	Lu, Hui,Koike, Toshio,Yang, Ku,et al. Estimating Land Surface Energy and Water Fluxes by Using the Land Data Assimilation System developed at The University of Tokyo (LDASUT)[J]. 中国科学院青藏高原研究所,2009.
APA	Lu, Hui,Koike, Toshio,Yang, Ku,Tsutsui, Hiroyuki,&Tamagawa, Katsunori.(2009).Estimating Land Surface Energy and Water Fluxes by Using the Land Data Assimilation System developed at The University of Tokyo (LDASUT).2009 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, VOLS 1-5.
MLA	Lu, Hui,et al."Estimating Land Surface Energy and Water Fluxes by Using the Land Data Assimilation System developed at The University of Tokyo (LDASUT)".2009 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, VOLS 1-5 (2009).