气候变化领域集成服务门户(CCPortal): Temporal and spatial changes in estimated near-surface air temperature lapse rates on Tibetan Plateau

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DOI	10.1002/joc.5471
	Temporal and spatial changes in estimated near-surface air temperature lapse rates on Tibetan Plateau
	Wang, Yuanwei; Wang, Lei; Li, Xiuping; Chen, Deliang
通讯作者	Wang, L (通讯作者)
发表日期	2018
ISSN	0899-8418
EISSN	1097-0088
起始页码	2907
结束页码	2921
卷号	38 期号:7
英文摘要	Lapse rate (LR) of near-surface (2 m) air temperature is essential for determining spatially distributed and gridded air temperature interpolated from in situ observational sites. However, due to the limitation of sparse observational networks, high-resolution LRs are not usually available on regional scales, especially in mountainous regions. The purpose of this study is to estimate LRs for the entire Tibetan Plateau (TP) using observed air temperature and moderate-resolution imaging spectroradiometer (MODIS) night-time land surface temperatures (LSTs) and to analyse the spatio-temporal changes of the estimated LRs. First, diurnal cycles of LRs derived from in situ observations in three subregions of the TP were analysed, which shows that the LRs in the western and northeastern regions were shallow in the cold season and steep in the warm season, whereas the southeastern region exhibited a different pattern. Further comparisons revealed that the LRs for night-time air temperatures better represented the LRs for daily mean air temperatures than the daytime ones, and the night-time MODIS LSTs correlated well with the night-time air temperatures, especially for the MODIS Terra data sets. Therefore, the night-time MODIS LSTs from the Terra data sets were used to estimate high-resolution (10 km) LRs for the daily mean temperatures over the entire TP. Estimated LRs over most areas of the TP were shallower than the commonly used environmental LR (-6.5 K/km). The LRs in the southeastern region were steeper than those in the northeastern region, while steeper LR values occurred in the northwestern region with lower temperatures and less humidity.
关键词	GLACIER MASS-BALANCE MODIS LST DATA NORTHERN ENGLAND CLIMATE CHINA PATTERNS RUNOFF SCALE BASIN
英文关键词	lapse rates; MODIS land surface temperatures; spatial-temporal variability; Tibetan Plateau
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000439792300001
来源期刊	INTERNATIONAL JOURNAL OF CLIMATOLOGY
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/259229
推荐引用方式 GB/T 7714	Wang, Yuanwei,Wang, Lei,Li, Xiuping,et al. Temporal and spatial changes in estimated near-surface air temperature lapse rates on Tibetan Plateau[J]. 中国科学院青藏高原研究所,2018,38(7).
APA	Wang, Yuanwei,Wang, Lei,Li, Xiuping,&Chen, Deliang.(2018).Temporal and spatial changes in estimated near-surface air temperature lapse rates on Tibetan Plateau.INTERNATIONAL JOURNAL OF CLIMATOLOGY,38(7).
MLA	Wang, Yuanwei,et al."Temporal and spatial changes in estimated near-surface air temperature lapse rates on Tibetan Plateau".INTERNATIONAL JOURNAL OF CLIMATOLOGY 38.7(2018).