Dependence of trends in and sensitivity of drought over China (1961-2013) on potential evaporation model
文献类型：SCI/SSCI论文
| 作者 | Zhang J.; Sun, F. B.; Xu, J. J.; Chen, Y. N.; Sang, Y. F.; Liu, C. M. |
| 发表日期 | 2016 |
| 关键词 | PDSI drought potential evaporation Penman-Monteith california drought climate risk variability |
| 英文摘要 | The Palmer Drought Severity Index (PDSI) can lead to controversial results in assessing droughts responding to global warming. Here we assess recent changes in the droughts over China (1961-2013) using the PDSI with two different estimates, i.e., the Thornthwaite (PDSI_th) and Penman-Monteith (PDSI_pm) approaches. We found that droughts have become more severe in the PDSI_th but slightly lessened in the PDSI_pm estimate. To quantify and interpret the different responses in the PDSI_th and PDSI_pm, we designed numerical experiments and found that drying trend of the PDSI_th responding to the warming alone is 3.4 times higher than that of the PDSI_pm, and the latter was further compensated by decreases in wind speed and solar radiation causing the slightly wetting in the PDSI_pm. Interestingly, we found that interbasin difference in the PDSI_th and PDSI_pm responses to the warming alone tends to be larger in warmer basins, exponentially depending on mean temperature. |
| 出处 | Geophysical Research Letters |
| 卷 | 43 |
| 期 | 1 |
| 页 | 206-213 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0094-8276 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/43910]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_生态网络实验室 |
| 推荐引用方式 GB/T 7714 | Zhang J.,Sun, F. B.,Xu, J. J.,et al. Dependence of trends in and sensitivity of drought over China (1961-2013) on potential evaporation model. 2016. |
入库方式： OAI收割
来源：地理科学与资源研究所
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