| 来源类型 | Article
|
| 规范类型 | 其他
|
| DOI | 10.1002/2016GL071665
|
| Intensification of hydrological drought in California by human water management. |
| He X; Wada Y; Wanders N; Sheffield J
|
| 发表日期 | 2017
|
| 出处 | Geophysical Research Letters 24 (4): 1777-1785
|
| 出版年 | 2017
|
| 语种 | 英语
|
| 摘要 | We analyze the contribution of human water management to the intensification and mitigation of hydrological drought over California using the PCR-GLOBWB hydrological model for the period 1979-2014. We demonstrate that considering water management results in more accurate discharge representation. During the severe 2014 drought, water management alleviated the drought deficit by ∼50% in Southern California through reservoir operation during low flow periods. However, human water consumption (mostly irrigation) in the Central Valley increased drought duration and deficit by 50% and 50-100%, respectively. Return level analysis indicates that there is more than 50% chance that the probability of occurrence of an extreme 2014-magnitude drought event was at least doubled under the influence of human activities compared to natural variability. This impact is most significant over the San Joaquin Drainage basin with a 50% and 75% likelihood that the return period is more than 3.5 and 1.5 times larger, respectively, because of human activities. |
| 主题 | Water (WAT)
|
| URL | http://pure.iiasa.ac.at/id/eprint/14339/
|
| 来源智库 | International Institute for Applied Systems Analysis (Austria)
|
| 引用统计 |
|
| 资源类型 | 智库出版物
|
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/130919
|
推荐引用方式
GB/T 7714 |
He X,Wada Y,Wanders N,et al. Intensification of hydrological drought in California by human water management.. 2017.
|
|
文件名：
|
grl55488.pdf
|
|
格式：
|
Adobe PDF
|
此文件暂不支持浏览
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。
