Multi-scale drought and ocean–atmosphere variability in monsoon Asia
Multi-scale drought and ocean–atmosphere variability in monsoon Asia
复制标题
亚洲季风区的多尺度干旱和海洋大气变化
DOI：
10.1088/1748-9326/10/7/074010
复制
发表时间：
2015
影响因子：
6.7
通讯作者：
Anchukaitis, Kevin J.
中科院分区：
文献类型：
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作者：
Hernandez, Manuel;Ummenhofer, Caroline C.;Anchukaitis, Kevin J.
在空间上广泛和持续的干旱事件反复影响着人类历史，包括18世纪中叶亚洲季风中的“奇怪的平行”干旱事件。在这里，我们利用观测到的和树木年轮重建的干旱模式和1300年前工业化前社区地球系统模型控制运行来探索持续季风破坏的动力学。在南亚季风极度减弱的年份，现代观测和气候模型的干旱模式都与为奇异平行线干旱重建的干旱模式相似。模式分析表明，这种模式出现在东南亚北部春季，降水和水汽通量减少，而相关的夏季气候异常仅限于印度次大陆。在模拟南亚干燥的几年中，太平洋上出现了典型的厄尔尼诺现象，并伴随着沃克环流的变化。相比之下，与奇异平行线干旱期间类似的多年干旱时期，在日期线周围出现了太平洋异常变暖，这是厄尔尼诺·莫多基事件的典型特征。
Spatially extensive and persistent drought episodes have repeatedly influenced human history, including the'Strange Parallels' drought event in monsoon Asia during the mid-18th century. Here we explore the dynamics of sustained monsoon failure using observed and tree-ring reconstructed drought patterns and a 1300-year pre-industrial community earth system model control run. Both modern observational and climate model drought patterns during years with extremely weakened South Asian monsoon resemble those reconstructed for the Strange Parallels drought. Model analysis reveals that this pattern arises during boreal spring over Southeast Asia, with decreased precipitation and moisture flux, while related summertime climate anomalies are confined to the Indian subcontinent. Years with simulated South Asian drying exhibit canonical El Niño conditions over the Pacific and associated shifts in the Walker circulation. In contrast, multi-year drought periods, resembling those sustained during the Strange Parallels drought, feature anomalous Pacific warming around the dateline, typical of El Niño Modoki events.
改进了 CMIP5 模型中两种厄尔尼诺现象的模拟
DOI：
--
发表时间：
2012
期刊：
影响因子：
--
作者：
J. Kug;Y. Ham;June‐Yi Lee;F. Jin
通讯作者：
F. Jin
DOI：
10.1073/pnas.0910827107
发表时间：
2010-04-13
影响因子：
11.1
作者：
Buckley, Brendan M.;Anchukaitis, Kevin J.;Truong Mai Hong
通讯作者：
Truong Mai Hong
影响因子：
4.9
作者：
Ashok, K;Guan, ZY;Yamagata, T
通讯作者：
Yamagata, T