Self-organizing map network-based precipitation regionalization for the Tibetan Plateau and regional precipitation variability
文献类型：期刊论文
| 作者 | Wang, Nini1,2; Yin, Jianchuan3,4 |
| 刊名 | THEORETICAL AND APPLIED CLIMATOLOGY
 |
| 出版日期 | 2019 |
| 卷号 | 135期号:1-2页码:29-44 |
| ISSN号 | 0177-798X |
| DOI | 10.1007/s00704-017-2349-5 |
| 通讯作者 | Yin, Jianchuan(yinjianchuan@dlmu.edu.cn) |
| 英文摘要 | A precipitation-based regionalization for the Tibetan Plateau (TP) was investigated for regional precipitation trend analysis and frequency analysis using data from 1113 grid points covering the period 1900-2014. The results utilizing self-organizing map (SOM) network suggest that four clusters of precipitation coherent zones can be identified, including the southwestern edge, the southern edge, the southeastern region, and the north central region. Regionalization results of the SOM network satisfactorily represent the influences of the atmospheric circulation systems such as the East Asian summer monsoon, the south Asian summer monsoon, and the mid-latitude westerlies. Regionalization results also well display the direct impacts of physical geographical features of the TP such as orography, topography, and land-sea distribution. Regional-scale annual precipitation trend as well as regional differences of annual and seasonal total precipitation were investigated by precipitation index such as precipitation concentration index (PCI) and Standardized Anomaly Index (SAI). Results demonstrate significant negative long-term linear trends in southeastern TP and the north central part of the TP, indicating arid and semi-arid regions in the TP are getting drier. The empirical mode decomposition (EMD) method shows an evolution of the main cycle with 4 and 12 months for all the representative grids of four sub-regions. The cross-wavelet analysis suggests that predominant and effective period of Indian Ocean Dipole (IOD) on monthly precipitation is around similar to 12 months, except for the representative grid of the northwestern region. |
| WOS关键词 | SUMMER PRECIPITATION ; WAVELET TRANSFORM ; CLUSTER-ANALYSIS ; TEMPERATURES ; DIPOLE ; IRAN |
| 资助项目 | Doctoral Scientific Research Foundation of Liaoning Province[201601080] ; Fundamental Research Funds for the Central Universities of China[3132017049] |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000459226500003 |
| 出版者 | SPRINGER WIEN |
| 资助机构 | Doctoral Scientific Research Foundation of Liaoning Province ; Fundamental Research Funds for the Central Universities of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/49447]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Yin, Jianchuan |
| 作者单位 | 1.Dalian Maritime Univ, Coll Sci, Dalian 116026, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 3.Dalian Maritime Univ, Nav Coll, Dalian 116026, Peoples R China 4.Dalian Maritime Univ, Ctr Intelligent Marine Vehicles, Dalian 116026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Nini,Yin, Jianchuan. Self-organizing map network-based precipitation regionalization for the Tibetan Plateau and regional precipitation variability[J]. THEORETICAL AND APPLIED CLIMATOLOGY,2019,135(1-2):29-44. |
| APA | Wang, Nini,&Yin, Jianchuan.(2019).Self-organizing map network-based precipitation regionalization for the Tibetan Plateau and regional precipitation variability.THEORETICAL AND APPLIED CLIMATOLOGY,135(1-2),29-44. |
| MLA | Wang, Nini,et al."Self-organizing map network-based precipitation regionalization for the Tibetan Plateau and regional precipitation variability".THEORETICAL AND APPLIED CLIMATOLOGY 135.1-2(2019):29-44. |
入库方式： OAI收割
来源：地理科学与资源研究所
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