Spatiotemporal variations in the difference between satellite-observed   daily maximum land surface temperature and station-based daily maximum   near-surface air temperature

doi:10.1002/2016JD025366

CORC > 北京大学 > 城市与环境学院

	Spatiotemporal variations in the difference between satellite-observed daily maximum land surface temperature and station-based daily maximum near-surface air temperature
	Lian, Xu ; Zeng, Zhenzhong ; Yao, Yitong ; Peng, Shushi ; Wang, Kaicun ; Piao, Shilong
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
	2017
关键词	METEOROLOGICAL STATIONS UNITED-STATES MODIS DATA CLIMATE SKIN FEEDBACKS TRENDS COVER SPACE INDEX
DOI	10.1002/2016JD025366
英文摘要	There is an increasing demand to integrate land surface temperature (LST) into climate research due to its global coverage, which requires a comprehensive knowledge of its distinctive characteristics compared to near-surface air temperature (Tair). Using satellite observations and in situ station-based data sets, we conducted a global-scale assessment of the spatial and seasonal variations in the difference between daily maximum LST and daily maximum Tair (delta(T), LST - Tair) during 2003-2014. Spatially, LST is generally higher than Tair over arid and sparsely vegetated regions in the middle-low latitudes, but LST is lower than Tair in tropical rainforests due to strong evaporative cooling, and in the high-latitude regions due to snow-induced radiative cooling. Seasonally, delta(T) is negative in tropical regions throughout the year, while it displays a pronounced seasonality in both the midlatitudes and boreal regions. The seasonality in the midlatitudes is a result of the asynchronous responses of LST and Tair to the seasonal cycle of radiation and vegetation abundance, whereas in the boreal regions, seasonality is mainly caused by the change in snow cover. Our study identified substantial spatial heterogeneity and seasonality in delta(T), as well as its determinant environmental drivers, and thus provides a useful reference for monitoring near-surface air temperature changes using remote sensing, particularly in remote regions.; National Natural Science Foundation of China [41561134016]; National Youth Top-notch Talent Support Program in China; SCI(E); ARTICLE; 4; 2254-2268; 122
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/475030]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Lian, Xu,Zeng, Zhenzhong,Yao, Yitong,et al. Spatiotemporal variations in the difference between satellite-observed daily maximum land surface temperature and station-based daily maximum near-surface air temperature[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017.
APA	Lian, Xu,Zeng, Zhenzhong,Yao, Yitong,Peng, Shushi,Wang, Kaicun,&Piao, Shilong.(2017).Spatiotemporal variations in the difference between satellite-observed daily maximum land surface temperature and station-based daily maximum near-surface air temperature.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES.
MLA	Lian, Xu,et al."Spatiotemporal variations in the difference between satellite-observed daily maximum land surface temperature and station-based daily maximum near-surface air temperature".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES (2017).