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Madagascar: Cyclone Batsirai leaves at least 10 dead, thousands displaced 新闻
来源平台:UN Sustainable Development Goals. 发布日期:2022
作者:  admin
收藏  |  浏览/下载:53/0  |  提交时间:2022/02/16
Madagascar: Deadly tropical storms cause flooding, landslides 新闻
来源平台:UN Sustainable Development Goals. 发布日期:2022
作者:  admin
收藏  |  浏览/下载:8/0  |  提交时间:2022/01/29
Human influence on joint changes in temperature, rainfall and continental aridity 期刊论文
NATURE CLIMATE CHANGE, 2020
作者:  Bonfils, Celine J. W.;  Santer, Benjamin D.;  Fyfe, John C.;  Marvel, Kate;  Phillips, Thomas J.;  Zimmerman, Susan R. H.
收藏  |  浏览/下载:21/0  |  提交时间:2020/07/09
Coupling of Indo-Pacific climate variability over the last millennium 期刊论文
NATURE, 2020
作者:  Chow, Brian W.;  Nunez, Vicente;  Kaplan, Luke;  Granger, Adam J.;  Bistrong, Karina;  Zucker, Hannah L.;  Kumar, Payal;  Sabatini, Bernardo L.;  Gu, Chenghua
收藏  |  浏览/下载:34/0  |  提交时间:2020/05/13

Coral records indicate that the variability of the Indian Ocean Dipole over the last millennium is strongly coupled to variability in the El Nino/Southern Oscillation and that recent extremes are unusual but not unprecedented.


The Indian Ocean Dipole (IOD) affects climate and rainfall across the world, and most severely in nations surrounding the Indian Ocean(1-4). The frequency and intensity of positive IOD events increased during the twentieth century(5) and may continue to intensify in a warming world(6). However, confidence in predictions of future IOD change is limited by known biases in IOD models(7) and the lack of information on natural IOD variability before anthropogenic climate change. Here we use precisely dated and highly resolved coral records from the eastern equatorial Indian Ocean, where the signature of IOD variability is strong and unambiguous, to produce a semi-continuous reconstruction of IOD variability that covers five centuries of the last millennium. Our reconstruction demonstrates that extreme positive IOD events were rare before 1960. However, the most extreme event on record (1997) is not unprecedented, because at least one event that was approximately 27 to 42 per cent larger occurred naturally during the seventeenth century. We further show that a persistent, tight coupling existed between the variability of the IOD and the El Nino/Southern Oscillation during the last millennium. Indo-Pacific coupling was characterized by weak interannual variability before approximately 1590, which probably altered teleconnection patterns, and by anomalously strong variability during the seventeenth century, which was associated with societal upheaval in tropical Asia. A tendency towards clustering of positive IOD events is evident in our reconstruction, which-together with the identification of extreme IOD variability and persistent tropical Indo-Pacific climate coupling-may have implications for improving seasonal and decadal predictions and managing the climate risks of future IOD variability.


  
Influence of Arctic sea-ice variability on Pacific trade winds 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (6) : 2824-2834
作者:  Kennel, Charles F.;  Yulaeva, Elena
收藏  |  浏览/下载:7/0  |  提交时间:2020/05/13
Arctic sea ice  decadal variability  Pacific trade winds  Central Pacific El Nino  Aleutian Low  
Enhanced equatorial warming causes deep-tropical contraction and subtropical monsoon shift 期刊论文
NATURE CLIMATE CHANGE, 2019, 9 (11) : 834-+
作者:  Zhou, Wenyu;  Xie, Shang-Ping;  Yang, Da
收藏  |  浏览/下载:10/0  |  提交时间:2019/11/27
Seasonality of Rainfall in Colombia 期刊论文
WATER RESOURCES RESEARCH, 2019, 55 (5) : 4149-4162
作者:  Urrea, Viviana;  Ochoa, Andres;  Mesa, Oscar
收藏  |  浏览/下载:4/0  |  提交时间:2019/11/26
seasons  rainfall  precipitation  tropical climate  climate variability  Andes  
Tropical cyclone activity affected by volcanically induced ITCZ shifts 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2019, 116 (16) : 7732-7737
作者:  Pausata, Francesco S. R.;  Camargo, Suzana J.
收藏  |  浏览/下载:7/0  |  提交时间:2019/11/27
tropical cyclones  ITCZ  ENSO  
Rainfall variations in central Indo-Pacific over the past 2,700 y 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2019, 116 (35) : 17201-17206
作者:  Tan, Liangcheng;  Shen, Chuan-Chou;  Lowemark, Ludvig;  Chawchai, Sakonvan;  Edwards, R. Lawrence;  Cai, Yanjun;  Breitenbach, Sebastian F. M.;  Cheng, Hai J.;  Chou, Yu-Chen;  Duerrast, Helmut;  Partin, Judson W.;  Cai, Wenju;  Chabangborn, Akkaneewut;  Gao, Yongli;  Kwiecien, Ola;  Wu, Chung-Che;  Shi, Zhengguo;  Hsu, Huang-Hsiung;  Wohlfarth, Barbara
收藏  |  浏览/下载:12/0  |  提交时间:2019/11/27
central Indo-Pacific  rainfall  ENSO  ITCZ  stalagmite  
Ecological and hydroclimate responses to strengthening of the Hadley circulation in South America during the Late Miocene cooling 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2019, 116 (20) : 9747-9752
作者:  Carrapa, Barbara;  Clementz, Mark;  Feng, Ran
收藏  |  浏览/下载:9/0  |  提交时间:2019/11/27
Late Miocene cooling  South America  Hadley circulation  stable isotopes  Andes