气候变化领域集成服务门户(CCPortal): Combining MODIS, AVHRR and in situ data for evapotranspiration estimation over heterogeneous landscape of the Tibetan Plateau

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DOI	10.5194/acp-14-1507-2014
	Combining MODIS, AVHRR and in situ data for evapotranspiration estimation over heterogeneous landscape of the Tibetan Plateau
	Ma, Y.; Zhu, Z.; Zhong, L.; Wang, B.; Han, C.; Wang, Z.; Wang, Y.; Lu, L.; Amatya, P. M.; Ma, W.; Hu, Z.
通讯作者	Ma, Y (通讯作者)
发表日期	2014
ISSN	1680-7316
EISSN	1680-7324
起始页码	1507
结束页码	1515
卷号	14 期号:3
英文摘要	In this study, a parameterization method based on MODIS (Moderate Resolution Imaging Spectroradiometer) data, AVHRR (Advanced Very High-Resolution Radiometer) data and in situ data is introduced and tested for estimating the regional evaporative fraction 3 over a heterogeneous landscape. As a case study, the algorithm was applied to the Tibetan Plateau (TP) area. Eight MODIS data images (17 January, 14 April, 23 July and 16 October in 2003; 30 January, 15 April, 1 August and 25 October in 2007) and four AVHRR data images (17 January, 14 April, 23 July and 16 October in 2003) were used in this study to compare winter, spring, summer and autumn values and for annual variation analysis. The results were validated using the ground truth measured at Tibetan Observation and Research Platform (TORP) and the CAMP/Tibet (CEOP (Coordinated Enhanced Observing Period) Asia-Australia Monsoon Project (CAMP) on the Tibetan Plateau) meteorological stations. The results show that the estimated evaporative fraction 3 in the four different seasons over the TP is in clear accordance with the land surface status. The 3 fractions show a wide range due to the strongly contrasting surface features found on the TP. Also, the estimated 3 values are in good agreement with ground truth measurements, and their absolute percentage difference (APD) is less than 10.0% at the validation sites. The AVHRR data were also in agreement with the MODIS data, with the latter usually displaying a higher level of accuracy. It was therefore concluded that the proposed algorithm was successful in retrieving the evaporative fraction 3 using MODIS, AVHRR and in situ data over the TP. MODIS data are the most accurate and should be used widely in evapotranspiration (ET) research in this region.
关键词	ASIAN SUMMER MONSOON SURFACE HEAT FLUXES REMOTE-SENSING DATA EVAPORATIVE FRACTION LAYER AREA DYNAMICS RAINFALL IMAGERY DAYTIME
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000332384900022
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
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/258331
推荐引用方式 GB/T 7714	Ma, Y.,Zhu, Z.,Zhong, L.,et al. Combining MODIS, AVHRR and in situ data for evapotranspiration estimation over heterogeneous landscape of the Tibetan Plateau[J]. 中国科学院青藏高原研究所,2014,14(3).
APA	Ma, Y..,Zhu, Z..,Zhong, L..,Wang, B..,Han, C..,...&Hu, Z..(2014).Combining MODIS, AVHRR and in situ data for evapotranspiration estimation over heterogeneous landscape of the Tibetan Plateau.ATMOSPHERIC CHEMISTRY AND PHYSICS,14(3).
MLA	Ma, Y.,et al."Combining MODIS, AVHRR and in situ data for evapotranspiration estimation over heterogeneous landscape of the Tibetan Plateau".ATMOSPHERIC CHEMISTRY AND PHYSICS 14.3(2014).