气候变化领域集成服务门户(CCPortal): Characterization of the temporal and spatial variability of soil moisture through multi-temporal analysis of ASAR observations

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DOI	10.1109/MULTITEMP.2007.4293031
	Characterization of the temporal and spatial variability of soil moisture through multi-temporal analysis of ASAR observations
	van der Velde, Rogier; Rientjes, Tom; Ma, Yao-ming; Zhao, Yizhou; Su, Bob
发表日期	2007
起始页码	1
结束页码	+
英文摘要	In this paper, Synthetic Aperture Radar (SAR) based soil moisture retrieval results are presented using observations acquired over the Tibetan Plateau. Two different time series based methods are used for the retrieval of soil moisture. With method I, soil moisture is retrieved through scaling of the backscatter (sigma degrees) observations between the maximum and minimum observed sigma degrees at a specific location. For method II, soil moisture is retrieved using the Integral Equation Method (IEM, Fung et al. 1992), for which a she-specific effective surface roughness parameterization is obtained through model inversion using minimum observed a. The retrievals are validated against ground measurements and showed that using Method I and Method II soil moisture can be estimated with accuracies up to 0.056 and 0.035 cm(3) cm(-3), respectively.
关键词	BACKSCATTERING MODEL MICROWAVE EMISSION ERS-2 SAR SURFACE TEMPERATURE ROUGHNESS IMAGERY
语种	英语
WOS研究方向	Engineering ; Remote Sensing
WOS类目	Engineering, Electrical & Electronic ; Remote Sensing
WOS记录号	WOS:000254030300001
来源期刊	2007 INTERNATIONAL WORKSHOP ON THE ANALYSIS OF MULTI-TEMPORAL REMOTE SENSING IMAGES
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/257475
推荐引用方式 GB/T 7714	van der Velde, Rogier,Rientjes, Tom,Ma, Yao-ming,et al. Characterization of the temporal and spatial variability of soil moisture through multi-temporal analysis of ASAR observations[J]. 中国科学院青藏高原研究所,2007.
APA	van der Velde, Rogier,Rientjes, Tom,Ma, Yao-ming,Zhao, Yizhou,&Su, Bob.(2007).Characterization of the temporal and spatial variability of soil moisture through multi-temporal analysis of ASAR observations.2007 INTERNATIONAL WORKSHOP ON THE ANALYSIS OF MULTI-TEMPORAL REMOTE SENSING IMAGES.
MLA	van der Velde, Rogier,et al."Characterization of the temporal and spatial variability of soil moisture through multi-temporal analysis of ASAR observations".2007 INTERNATIONAL WORKSHOP ON THE ANALYSIS OF MULTI-TEMPORAL REMOTE SENSING IMAGES (2007).