The spatial and temporal analysis of dry spells in the Yellow River basin, China
文献类型：SCI/SSCI论文
| 作者 | Xia J. |
| 发表日期 | 2013 |
| 关键词 | Dry spell Mann-Kendall trend analysis Yellow River basin nino-southern oscillation el-nino wet spells precipitation variability trends 20th-century patterns droughts events |
| 英文摘要 | In this research, drought in Yellow River basin has been studied by using dry spells. Three indices, including the maximum length (MxDS), mean length (MDS) and number of dry spells (NDS), and five periods (annual, winter, spring, summer and autumn) are considered. The results show that a south to north gradient for mean MxDS and MDS has been dominantly found in all periods except summer, in which a southwest and southeast to north gradient exists. Mean NDS shows an opposite distribution to that of mean MxDS and MDS. It is surely that the northern part of Yellow River basin, with a higher MxDS and MDS and lower NDS, is much drier than southern part in a regional scale. According to temporal analysis by using the Mann-Kendall trend method, MxDS of most stations show negative but insignificant trends during annual and winter, while the majority of stations show positive trends during spring, summer and autumn. Trends of MDS and NDS dominantly depict positive and negative for most periods, respectively. By comparing the frequency of dry spells during the ENSO events, it can be found that the frequency of intermediate and long dry spells is almost tantamount during the occurrence periods of El Nio and La Nina. |
| 出处 | Stochastic Environmental Research and Risk Assessment |
| 卷 | 27 |
| 期 | 1 |
| 页 | 29-42 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 1436-3240 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/30279]  |
| 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 | Xia J.. The spatial and temporal analysis of dry spells in the Yellow River basin, China. 2013. |
入库方式： OAI收割
来源：地理科学与资源研究所
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