Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.5418 |
Temperature-topographic elevation relationship for high mountain terrain: an example from the southeastern Tibetan Plateau | |
Kattel, Dambaru Ballab1; Yao, Tandong1,2 | |
2018-04-01 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY
![]() |
ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2018 |
卷号 | 38页码:E901-E920 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | This study quantifies the spatial-temporal distribution of the near-surface temperature lapse rate (TLR) on the southeastern Tibetan Plateau (SETP) on the northern slopes of the eastern Himalayas, using the jackknife regression model. A 20-year (1985-2004) climatic data set of 16 stations between the elevation range of 3553-4801 m asl was used for this investigation. Controls for the spatial-temporal variation on TLRs and causes of higher mean square error (MSE) from the jackknife regressions were also analysed. Dry convection due to increasing sensible heating at lower elevations associated with clear skies, the effect of cold air surges, cloud/fog, as well as pronounced long-wave radiation loss due to snow cover at higher elevation, results in the super-dry adiabatic TLR in the dry winter. In response to the effects of high rainfall and humidity, intense latent heating at higher elevation due to moist adiabatic cooling causes TLRs to decrease significantly in summer. The variation in net radiation due to differences in moisture, rainfall, cloud cover and air mass between higher (fewer) and lower (higher) elevations further contributes to reducing TLRs values in this season. Observed steeper values of TLRs at higher elevations and more shallow values at lower elevations are due to the thermal contrast between snow-free ground and snow-covered mountain terrain, as well as the effect of variations in air mass and moisture. Based on derived values, this article also estimates near-surface temperature at higher elevations and analyses the precision of estimated values. Measurement of the lowest discrepancy (bias) between observed and estimated values from this study suggests that the estimation skills of the model are good enough. More precisely, including the smallest MSE from the jackknife regression and biases of the estimated values can be made for summer, perhaps due to the moisture controlled throughout the SETP, i.e. associated with the Indian monsoon. Higher MSE and biases are observed during winter and are due to the substantial effects of westerlies, as well as the station's geographical coordinate, local topography and microclimate. The MSE and the estimated biases are lowest at high-elevation stations and are associated with the lower contaminating effects of the surface. This estimation model, using derived values from this investigation, could be useful for glacier-hydro-climatic and ecological modelling in this region. |
英文关键词 | near-surface temperature lapse rate spatial-temporal variation controls temperature estimation model accuracy and biases jackknife regression southeastern Tibetan Plateau northern slopes of the Himalayas |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000431999600061 |
WOS关键词 | SURFACE AIR-TEMPERATURE ; LAPSE RATES ; SUMMER MONSOON ; CLIMATIC CONTROLS ; SOUTHERN SLOPES ; LANDSCAPE-SCALE ; ICE CORE ; NORTHERN ; PRECIPITATION ; JACKKNIFE |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/36575 |
专题 | 气候变化 |
作者单位 | 1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, 16 Lincui Rd, Beijing 100101, Peoples R China; 2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Kattel, Dambaru Ballab,Yao, Tandong. Temperature-topographic elevation relationship for high mountain terrain: an example from the southeastern Tibetan Plateau[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2018,38:E901-E920. |
APA | Kattel, Dambaru Ballab,&Yao, Tandong.(2018).Temperature-topographic elevation relationship for high mountain terrain: an example from the southeastern Tibetan Plateau.INTERNATIONAL JOURNAL OF CLIMATOLOGY,38,E901-E920. |
MLA | Kattel, Dambaru Ballab,et al."Temperature-topographic elevation relationship for high mountain terrain: an example from the southeastern Tibetan Plateau".INTERNATIONAL JOURNAL OF CLIMATOLOGY 38(2018):E901-E920. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论