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Assessment of reanalysis flux products based on eddy covariance observations over the Tibetan Plateau
Yang, YX (Yang, Yaoxian)1,2; Liu, YM (Liu, Yimin)1,2; Li, MS (Li, Maoshan)3; Hu, ZY (Hu, Zeyong)4,5; Ding, ZW (Ding, Zhangwei)6
Source PublicationTHEORETICAL AND APPLIED CLIMATOLOGY
2019
Volume138Issue:2020-01-02Pages:275-292
DOI10.1007/s00704-019-02811-1
Abstract

Surface sensible heat flux (SH) and latent heat flux (LH) are important variables linking the energy and hydrological cycles over the Tibetan Plateau (TP). Through comparison with eddy covariance observations of turbulent fluxes at two sites from 2013 to 2015 and at eight sites in August 2014 over the TP, five reanalysis flux products were evaluated for monthly mean biases and daily variations after bilinear interpolation. The results showed the JRA-55 and ERA-Interim reanalyses had optimal performances regarding SH, while NCEP2 had reasonable performance regarding LH. The SH in the reanalysis data generally reached maximum negative biases in winter and minimum positive biases in summer, whereas the seasonal bias of LH was found opposite to that of SH. The diurnal variation of reanalysis fluxes was found consistent with observed data at most sites, and the diurnal SH and LH maxima were all overestimated except SH in the JRA-55 at Nagri. The SH bias and the bias of the surface wind speed in NCEP2 were highly significantly correlated, suggesting the bias in the surface wind dominates the SH bias over the TP in NCEP2. Large spreads of averaged biases and standard deviation errors were found among the five reanalysis bulk variables. In particular, the maximum-minimum ranges of the biases of surface wind speed and ground-air-specific humidity contrast were > 5 m s(-1) and > 15 g kg(-1), respectively.

Subject AreaAtmospheric Sciences
WOS IDWOS:000491945900019
Language英语
Indexed BySCI
KeywordAtmospheric Heat-source Large-scale Orography Experiment Ebex-2000 Sonic Anemometer Energy-balance Sensible Heat Temperature Excitation Rainfall
WOS Research AreaMeteorology & Atmospheric Sciences
WOS SubjectMeteorology & Atmospheric Sciences
Cooperation Status国内
ISSN0177-798X
Department环境变化与地表过程重点实验室
URL查看原文
PublisherSPRINGER WIEN
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/9136
Collection图书馆
Corresponding AuthorLiu, YM (Liu, Yimin)
Affiliation1.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing, Peoples R China;
2.Univ Chinese Acad Sci, Beijing, Peoples R China;
3.Chengdu Univ Informat Technol, Sch Atmospher Sci, Chengdu, Sichuan, Peoples R China;
4.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Land Surface Proc & Climate Change Cold &, Lanzhou, Gansu, Peoples R China;
5.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China;
6.Chinese Acad Sicences, Inst Tibetan Plateau Res, Beijing, Peoples R China.
Recommended Citation
GB/T 7714
Yang, YX ,Liu, YM ,Li, MS ,et al. Assessment of reanalysis flux products based on eddy covariance observations over the Tibetan Plateau[J]. THEORETICAL AND APPLIED CLIMATOLOGY,2019,138(2020-01-02):275-292.
APA Yang, YX ,Liu, YM ,Li, MS ,Hu, ZY ,&Ding, ZW .(2019).Assessment of reanalysis flux products based on eddy covariance observations over the Tibetan Plateau.THEORETICAL AND APPLIED CLIMATOLOGY,138(2020-01-02),275-292.
MLA Yang, YX ,et al."Assessment of reanalysis flux products based on eddy covariance observations over the Tibetan Plateau".THEORETICAL AND APPLIED CLIMATOLOGY 138.2020-01-02(2019):275-292.
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