Precipitation dynamics and its interactions with possible drivers over global highlands
文献类型：期刊论文
| 作者 | Abbas, Haider2,3,5; Hussain, Azfar1,4; Xu, Ming2,3,5 |
| 刊名 | GLOBAL AND PLANETARY CHANGE
 |
| 出版日期 | 2024-09-01 |
| 卷号 | 240页码:104529 |
| 关键词 | Precipitation trends Global highlands Regional climatic/environmental factors Pacific and Atlantic coherences Empirical Orthogonal Function De-trended correlation analysis |
| DOI | 10.1016/j.gloplacha.2024.104529 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | The climate and ecosystem in the highland regions are fragile and vulnerable to climate change. This study used ERA5, CRU, and CHIRPS at 0.5 degrees x 0.5 degrees resolution to assess spatiotemporal precipitation trends over global highlands from 1981 to 2021. The Standardized anomaly index (SAI) is used to evaluate the comparative anomalies between the datasets, while the Mann-Kendall and Sen Slope estimator tests the precipitation trends. Empirical orthogonal function (EOF), pixel-wise correlation, and detrended cross-correlation (DCCA) were employed to investigate the dominant precipitation patterns and their relationships with regional climatic impacts, while the wavelet analysis determines ocean-atmospheric factors in the time-frequency domain. The SAI correlation strongly relates to CRU-CHIRPS for precipitation estimates in North America (NA) R-2 = 0.84, Europe R-2 = 0.71, and South America (SA), whereas CRU-ERA5 showed better results in the Asian highlands R-2 = 0.29, highlighting regional differences in the precipitation dynamics. For precipitation, EOF1 showed a positive variance in most highland regions, but a negative variance prevailed in the Tibetan Plateau (TP), whereas EOF1-2 explained similar to 32%, 33%, and 30% variance globally for ERA, CRU, and CHRIPS, respectively. A strong positive correlation is observed between precipitation and mean temperature (TMP) in North America (NA) and the European Alps. However, a significant negative correlation prevailed in the TP and some parts of NA, indicating that these factors can significantly influence the precipitation dynamics in the highlands. Additionally, Detrended Cross-Correlation Analysis (DCCA) has verified that there are positive correlations between precipitation and key climatic factors such as total column water vapor (TCWV), potential evaporation (PEV), and soil moisture (SM). In addition, the influence of ocean-atmospheric (interannual and decadal) coherence patterns originating from the Pacific and Atlantic Oceans indicates a significant impact on precipitation variability, especially in the Asian highlands. This study can contribute to a better understanding of mechanisms and serve as a reference for forecasting precipitation dynamics to develop corresponding strategies in global highlands. |
| WOS关键词 | SPATIOTEMPORAL VARIABILITY ; WINTER PRECIPITATION ; SOIL-MOISTURE ; CLIMATE ; TEMPERATURE ; RAINFALL ; IMPACTS ; MODES ; ASIA ; OSCILLATION |
| WOS研究方向 | Physical Geography ; Geology |
| WOS记录号 | WOS:001287527400001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/206894]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 通讯作者 | Xu, Ming |
| 作者单位 | 1.UNESCO, Int Res Ctr Karst Ausp, Paris, France 2.Inst Geog Sci & Nat Resources Res, Chinese Ecosyst Res Network, Key Lab Ecosyst Network Observat & Modelling, Synth Res Ctr, Beijing 100101, Peoples R China 3.Jiangmen Lab Carbon Sci & Technol, Guangdong Hong Kong Joint Lab Carbon Neutral, Jiangmen 529199, Guangdong, Peoples R China 4.Chinese Acad Geol Sci, Inst Karst Geol, Guilin 541004, Peoples R China 5.Univ Chinese Acad Sci, Chinese Acad Sci, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Abbas, Haider,Hussain, Azfar,Xu, Ming. Precipitation dynamics and its interactions with possible drivers over global highlands[J]. GLOBAL AND PLANETARY CHANGE,2024,240:104529. |
| APA | Abbas, Haider,Hussain, Azfar,&Xu, Ming.(2024).Precipitation dynamics and its interactions with possible drivers over global highlands.GLOBAL AND PLANETARY CHANGE,240,104529. |
| MLA | Abbas, Haider,et al."Precipitation dynamics and its interactions with possible drivers over global highlands".GLOBAL AND PLANETARY CHANGE 240(2024):104529. |
入库方式： OAI收割
来源：地理科学与资源研究所
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