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Scale effects of topographic ruggedness on precipitation over Qinghai-Tibet Plateau
Lu, Ning1,2
2019-06-01
Source PublicationATMOSPHERIC SCIENCE LETTERS
ISSN1530-261X
Volume20Issue:6Pages:7
Corresponding AuthorLu, Ning(lvn@lreis.ac.cn)
AbstractDue to the complex topography in mountainous areas, the pattern of precipitation is impacted by the topographic ruggedness (TR) that is characterized from Digital Elevation Model and thus scale-dependent. Scale effects on the precipitation-TR relationship have not been well known in the Qinghai-Tibet Plateau. Based on station measurements of precipitation in the domain, this study uses the quantile regression method to investigate the response of precipitation quantiles in summer and winter to the TR changes at different spatial scales. It is found that the scale variations impede the validity analysis of precipitation-TR relations. Neither too large (>100 km) or too small (<1 km) scales are suitable for exploring summer precipitation, and the scales are better less than 30 km for high winter precipitation. The analyses address that the precipitation-TR relations depend on appropriate spatial scales, which is important for statistical downscaling and model projection of precipitation in the Qinghai-Tibet Plateau.
Keywordprecipitation Qinghai-Tibet Plateau scale effects topographic ruggedness
DOI10.1002/asl.904
WOS KeywordVARIABILITY ; RESOLUTION ; ASIA ; SEASONALITY ; SIMULATION ; RAINFALL ; CLIMATE
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41890854] ; Young Talent Fund of Institute of Geographic Sciences and Natural Resources Research[2015RC203]
Funding OrganizationNational Natural Science Foundation of China ; Young Talent Fund of Institute of Geographic Sciences and Natural Resources Research
WOS Research AreaGeochemistry & Geophysics ; Meteorology & Atmospheric Sciences
WOS SubjectGeochemistry & Geophysics ; Meteorology & Atmospheric Sciences
WOS IDWOS:000470012700005
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/59261
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLu, Ning
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China
2.Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Lu, Ning. Scale effects of topographic ruggedness on precipitation over Qinghai-Tibet Plateau[J]. ATMOSPHERIC SCIENCE LETTERS,2019,20(6):7.
APA Lu, Ning.(2019).Scale effects of topographic ruggedness on precipitation over Qinghai-Tibet Plateau.ATMOSPHERIC SCIENCE LETTERS,20(6),7.
MLA Lu, Ning."Scale effects of topographic ruggedness on precipitation over Qinghai-Tibet Plateau".ATMOSPHERIC SCIENCE LETTERS 20.6(2019):7.
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