DOI: 10.1175/JCLI-D-13-00282.1
Scopus记录号: 2-s2.0-84897584704
论文题名: Precipitation seasonality and variability over the Tibetan Plateau as resolved by the high Asia reanalysis
作者: Maussion F. ; Scherer D. ; Mölg T. ; Collier E. ; Curio J. ; Finkelnburg R.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2014
卷: 27, 期: 5 起始页码: 1910
结束页码: 1927
语种: 英语
Scopus关键词: Atmospheric circulation
; Dynamical downscaling
; High-resolution datum
; Interannual variability
; Meteorological observation
; Orographic precipitation
; Precipitation frequency
; Process-based approach
; Climate models
; Climatology
; Rain gages
; atmospheric circulation
; data set
; precipitation assessment
; precipitation quality
; seasonality
; spatial variation
; TRMM
; weather forecasting
; China
; Qinghai-Xizang Plateau
英文摘要: Because of the scarcity of meteorological observations, the precipitation climate on the Tibetan Plateau and surrounding regions (TP) has been insufficiently documented so far. In this study, the characteristics and basic features of precipitation on the TP during an 11-yr period (2001-11) are described on monthly-to-annual time scales. For this purpose, a new high-resolution atmospheric dataset is analyzed, the High Asia Reanalysis (HAR), generated by dynamical downscaling of global analysis data using theWeatherResearch and Forecasting (WRF) model. The HAR precipitation data at 30- and 10-km resolutions are compared with both rain gauge observations and satellite-based precipitation estimates from theTropicalRainfall MeasurementMission (TRMM). It is found that the HAR reproduces previously reported spatial patterns and seasonality of precipitation and that the highresolution data add value regarding snowfall retrieval, precipitation frequency, and orographic precipitation. It is demonstrated that this process-based approach, despite some unavoidable shortcomings, can improve the understanding of the processes that lead to precipitation on the TP.Analysis focuses on precipitation amounts, type, seasonality, and interannual variability. Special attention is given to the links between the observed patterns and regional atmospheric circulation. As an example of an application of the HAR, a new classification of glaciers on the TP according to their accumulation regimes is proposed, which illustrates the strong spatial variability of precipitation seasonality. Finally, directions for future research are identified based on the HAR, which has the potential to be a useful dataset for climate, glaciological, and hydrological impact studies. © 2014 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50931
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: Technische Universität Berlin, Berlin, Germany; Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB, Canada
Recommended Citation:
Maussion F.,Scherer D.,Mölg T.,et al. Precipitation seasonality and variability over the Tibetan Plateau as resolved by the high Asia reanalysis[J]. Journal of Climate,2014-01-01,27(5)