Linkages between hydrological drought, climate indices and human activities: a case study in the Columbia River basin
文献类型：SCI/SSCI论文
| 作者 | Huang S. Z.; Huang, Q.; Chang, J. X.; Leng, G. Y. |
| 发表日期 | 2016 |
| 关键词 | hydrological drought Standardized Streamflow Index climate indices cross-wavelet analysis anthropogenic activities Columbia River basin atmospheric circulation patterns united-states streamflow drought time-series precipitation pacific model enso variability washington |
| 英文摘要 | It is of great importance to investigate links between hydrological drought and climate indices, which helps to further reveal the cause of hydrological drought from a perspective of climate change, thus helping guiding future drought prediction and control. For a case study in the Columbia River basin, the Standardized Streamflow Index (SSI) was employed to characterize hydrological drought. The heuristic segmentation method was applied to identify change points of annual streamflow series spanning 1960-2012 in the Columbia River basin, and the cross-wavelet analysis was utilized to reveal the correlations between monthly climate indices and SSI. The primary results are as following: (1) monthly SSI has a statistically significantly increasing trend in November and December and a noticeably decreasing trend in June and July in the main stream of the basin; (2) generally, hydrological drought risk in this basin is high, and that in the Snake River is higher than the main stream of the Columbia River; (3) El Nino Southern Oscillation (ENSO) and Arctic Oscillation (AO) play a major role in affecting hydrological drought in the Columbia River basin, and ENSO index mainly affects SSI at a relatively short time scale (2-7 years), while AO primarily impacts SSI at a relatively long time scale (more than 10 years); (4) anthropogenic activities intensify hydrological drought in the Columbia River basin, and they primarily influence the linkages between climate indices and hydrological drought at intra-annual scale (less than 12 months), however, which do not change the basic pattern of their correlations. |
| 出处 | International Journal of Climatology |
| 卷 | 36 |
| 期 | 1 |
| 页 | 280-290 |
| 语种 | 英语 |
| ISSN号 | 0899-8418 |
| DOI标识 | 10.1002/joc.4344 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/42994]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Huang S. Z.,Huang, Q.,Chang, J. X.,et al. Linkages between hydrological drought, climate indices and human activities: a case study in the Columbia River basin. 2016. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
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。