Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | DOI10.1088/1748-9326/aba8c0 |
Teleconnection patterns of precipitation in the Three-River Headwaters region, China | |
Yiyang Dong; Jiaqi Zhai; Yong Zhao; Haihong Li; Qingming Wang; Shan Jiang; Huanyu Chang; Zhiyong Ding | |
2020-10-02 | |
发表期刊 | Environmental Research Letters
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出版年 | 2020 |
英文摘要 | With the intensification of global warming, spatiotemporal variations in the climate and their mechanisms have received increasing attention. Currently, the relationship between regional precipitation regime, large-scale circulation, and topography, particularly in high-altitude areas such as the Qinghai–Tibet Plateau, are not well understood. Herein, the spatial and temporal variability in the annual and intra-annual (wet and dry periods) precipitation at 33 stations in the Three-River Headwaters (TRH) region from 1967 to 2016 are analysed. Moreover, the empirical orthogonal function and wavelet transform coherence methods are used to analyse the relationships between the different modes of precipitation change and 14 atmospheric circulation indices. The following results were obtained. (1) The mean annual precipitation and mean dry period precipitation significantly increased over the studied period. Annual and intra-annual precipitation showed a spatial southeast-to-northwest decreasing trend. (2) Two main patterns of precipitation were observed during the studied period: a dominant pattern with high- and low-value centres located in southeast and northwest TRH, respectively, and a dipole pattern with more precipitation over southwest TRH and less precipitation over northeast TRH. (3) Precipitation had a negative correlation with latitude, positive correlation with longitude, and nonlinear relationship with elevation. (4) Precipitation changes over various parts of the studied domain were determined based on changes in the weather systems affecting the area, with different indices being correlated with different components during different times of the year. |
领域 | 气候变化 |
URL | 查看原文 |
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/297807 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Yiyang Dong,Jiaqi Zhai,Yong Zhao,et al. Teleconnection patterns of precipitation in the Three-River Headwaters region, China[J]. Environmental Research Letters,2020. |
APA | Yiyang Dong.,Jiaqi Zhai.,Yong Zhao.,Haihong Li.,Qingming Wang.,...&Zhiyong Ding.(2020).Teleconnection patterns of precipitation in the Three-River Headwaters region, China.Environmental Research Letters. |
MLA | Yiyang Dong,et al."Teleconnection patterns of precipitation in the Three-River Headwaters region, China".Environmental Research Letters (2020). |
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