Validation of FY-2C derived land surface temperature over the source region of the Yellow River: A case study of Maqu County

doi:10.6046/gtzyyg.2015.04.11

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Abstract

Land surface temperature (LST) is an essential parameter in such fields of research as climate, hydrology and ecology, and it plays a significant role in the understanding of the water and energy balance of the Earth's surface. Because the heterogeneity of the underlying surface is most likely a main source of the uncertainties of the satellite derived LST, this paper aims to evaluate the accuracy of the FY-2C derived LST over the heterogeneous area of Maqu County in the source region of the Yellow River and subsequently to provide solid basis for the future development of the LST inversion algorithm and product. MODIS LST product (MOD11B1) was primarily conducted to verify the FY-2C derived LST over the study area. In addition to the MODIS data, soil temperature measurements from 20 soil samples of the study area were also implemented to validate the FY-2C derived LST. The results indicate that a significant correlation exists between the two datasets, with the coefficient of correlation, varying from 0.72 to 0.95, root mean square error(RMSE) ranging from 0.44 to 3.87 K, and the average RMSE being 1.90 K. The FY-2C derived LST exhibits a consistent variation with the measured soil temperature, and the coefficient of correlation reaches 0.69.

Keywords traditional residential settlements infrastructure and environmental management multi-source spatial data acquisition and storage technology mobile geographic information system and internet of things mobile tourism self-service

TP751.1

Issue Date: 23 July 2015

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	LIANG Bing
	WEI Haiyang
	BAI Yulong
	LIU Jianhua
	DU Mingyi

Cite this article:

LIANG Bing,WEI Haiyang,BAI Yulong, et al. Validation of FY-2C derived land surface temperature over the source region of the Yellow River: A case study of Maqu County[J]. REMOTE SENSING FOR LAND & RESOURCES, 2015, 27(4): 68-72.

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https://www.gtzyyg.com/EN/10.6046/gtzyyg.2015.04.11 OR https://www.gtzyyg.com/EN/Y2015/V27/I4/68

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