Sensitivity of northwest Australian tropical cyclone activity to ITCZ migration since 500 CE

Author:

Denniston Rhawn F.1ORCID,Ummenhofer Caroline C.23ORCID,Emanuel Kerry4ORCID,Ingrosso Roberto5ORCID,Pausata Francesco S. R.5ORCID,Wanamaker Alan D.6ORCID,Lachniet Matthew S.7ORCID,Carr Kenneth T.289,Asmerom Yemane910ORCID,Polyak Victor J.10ORCID,Nott Jonathan11,Zhang Wei1213ORCID,Villarini Gabriele12ORCID,Cugley John14ORCID,Brooks Darren14,Woods David15ORCID,Humphreys William F.1617

Affiliation:

1. Department of Geology, Cornell College, Mount Vernon, IA, USA.

2. Department of Physical Oceanography, Woods Hole Oceanographic Institution, Woods Hole, MA, USA.

3. ARC Centre of Excellence for Climate Extremes, University of New South Wales, Sydney, NSW, Australia.

4. Lorenz Center, Massachusetts Institute of Technology, Cambridge, MA, USA.

5. Centres ESCER (Étude et la Simulation du Climat à l’Échelle RÉgionale) and GEOTOP, Department of Earth and Atmospheric Sciences, University of Quebec in Montreal, Montreal, Canada.

6. Department of Geological and Atmospheric Sciences, Iowa State University, Ames, IA, USA.

7. Department of Geoscience, University of Nevada Las Vegas, Las Vegas, NV, USA.

8. Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA.

9. MIT-WHOI Joint Program in Oceanography/Applied Ocean Science & Engineering, Cambridge and Woods Hole, MA, USA.

10. Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, NM, USA.

11. College of Science and Engineering, James Cook University, Cairns, QLD, Australia.

12. IIHR-Hydroscience and Engineering, University of Iowa, Iowa City, IA, USA.

13. Department of Plants, Soils and Climate, Utah State University, Logan, UT, USA.

14. Australian Speleological Federation, Perth, WA, Australia.

15. Department of Environment and Science, Queensland Parks and Wildlife Service, Townsville, QLD, Australia.

16. School of Biological Sciences, University of Western Australia, Perth, WA, Australia.

17. Department of Terrestrial Zoology, Western Australian Museum, Welshpool, DC, WA, Australia.

Abstract

Tropical cyclones (TCs) regularly form in association with the intertropical convergence zone (ITCZ), and thus, its positioning has implications for global TC activity. While the poleward extent of the ITCZ has varied markedly over past centuries, the sensitivity with which TCs responded remains poorly understood from the proxy record, particularly in the Southern Hemisphere. Here, we present a high-resolution, composite stalagmite record of ITCZ migrations over tropical Australia for the past 1500 years. When integrated with a TC reconstruction from the Australian subtropics, this time series, along with downscaled climate model simulations, provides an unprecedented examination of the dependence of subtropical TC activity on meridional shifts in the ITCZ. TCs tracked the ITCZ at multidecadal to centennial scales, with a more southward position enhancing TC-derived rainfall in the subtropics. TCs may play an increasingly important role in Western Australia’s moisture budgets as subtropical aridity increases due to anthropogenic warming.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3