globalchange  > 气候减缓与适应
DOI: 10.1002/2017JD028243
Scopus记录号: 2-s2.0-85047487614
论文题名:
How Accurately Can the Air Temperature Lapse Rate Over the Tibetan Plateau Be Estimated From MODIS LSTs?
作者: Zhang H.; Zhang F.; Zhang G.; Che T.; Yan W.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2018
卷: 123, 期:8
起始页码: 3943
结束页码: 3960
语种: 英语
英文关键词: air temperature interpolation ; air temperature lapse rate ; MODIS LST ; Tibetan Plateau
Scopus关键词: accuracy assessment ; air temperature ; areal interpolation ; atmospheric lapse rate ; downscaling ; estimation method ; land surface ; MODIS ; mountain region ; surface temperature ; China ; Qinghai-Xizang Plateau
英文摘要: The air temperature lapse rate (TLR) is a key parameter for interpolating air temperature data in high mountainous regions such as the Tibetan Plateau (TP). The Moderate Resolution Imaging Spectroradiometer (MODIS) land surface temperature (LST) has been frequently used for estimating air temperature during the past decade, but its performance in estimating the TLR in the TP has seldom been investigated. This study employed two methods in estimating the TLR based on MODIS LSTs compared with the “observed” TLR derived from 86 stations across the TP. The two methods include a method for directly computing the lapse rate from MODIS LST (DFM) and a second method for calculating the lapse rate of estimated air temperatures based on air temperature estimation from MODIS LST (TEM). The results show that the MODIS LST-estimated TLR for daily mean air temperature (Tmean) using both DFM and TEM is more accurate than that for daily minimum and maximum air temperatures. When using MODIS nighttime LSTs, both DFM and TEM show acceptable accuracies for estimating the TLR of Tmean with averaged root-mean-square deviations of 0.21 and 0.19 °C/100 m, respectively. The spatial and seasonal patterns of MODIS LST-estimated TLRs of Tmean from both DFM and TEM are found to be highly consistent with the observed TLRs. This study can help alleviate the data-sparse problem in downscaling air temperature or hydrological modeling studies in ungauged areas, especially for the western TP where station data are extremely scarce. ©2018. American Geophysical Union. All Rights Reserved.
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被引频次[WOS]:26   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114052
Appears in Collections:气候减缓与适应

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作者单位: Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China; CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing, China; Institute of Tibetan Plateau Research, University of Chinese Academy of Sciences, Beijing, China; Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Beijing, China

Recommended Citation:
Zhang H.,Zhang F.,Zhang G.,et al. How Accurately Can the Air Temperature Lapse Rate Over the Tibetan Plateau Be Estimated From MODIS LSTs?[J]. Journal of Geophysical Research: Atmospheres,2018-01-01,123(8)
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