Teleconnection Pathways of ENSO and the IOD and the Mechanisms for Impacts on Australian Rainfall
TLDR
The tropical teleconnection is understood as the equatorially trapped, deep baroclinic response to the diabatic (convective) heating anomalies induced by the tropical sea surface temperature (SST) variations.Abstract:
Impacts of El Nino–Southern Oscillation (ENSO) and the Indian Ocean dipole (IOD) on Australian rainfall are diagnosed from the perspective of tropical and extratropical teleconnections triggered by tropical sea surface temperature (SST) variations. The tropical teleconnection is understood as the equatorially trapped, deep baroclinic response to the diabatic (convective) heating anomalies induced by the tropical SST anomalies. These diabatic heating anomalies also excite equivalent barotropic Rossby wave trains that propagate into the extratropics. The main direct tropical teleconnection during ENSO is the Southern Oscillation (SO), whose impact on Australian rainfall is argued to be mainly confined to near-tropical portions of eastern Australia. Rainfall is suppressed during El Nino because near-tropical eastern Australia directly experiences subsidence and higher surface pressure associated with the western pole of the SO. Impacts on extratropical Australian rainfall during El Nino are argued to...read more
Citations
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ENSO and greenhouse warming
Wenju Cai,Wenju Cai,Agus Santoso,Guojian Wang,Sang-Wook Yeh,Soon Il An,Kim M. Cobb,Mat Collins,Eric Guilyardi,Eric Guilyardi,Fei-Fei Jin,Jong-Seong Kug,Matthieu Lengaigne,Michael J. McPhaden,Ken Takahashi,Axel Timmermann,Gabriel A. Vecchi,Masahiro Watanabe,Lixin Wu +18 more
TL;DR: A review of the state of knowledge on the El Nino/Southern Oscillation (ENSO), a natural climate phenomenon, can be found in this article, where the authors discuss recent advances and insights into how climate change will affect this natural climate varibility cycle.
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ENSO Atmospheric Teleconnections and Their Response to Greenhouse Gas Forcing
Sang-Wook Yeh,Wenju Cai,Wenju Cai,Seung-Ki Min,Michael J. McPhaden,Dietmar Dommenget,Boris Dewitte,Matthew Collins,Karumuri Ashok,Soon Il An,Bo Young Yim,Jong-Seong Kug +11 more
TL;DR: Wenju Cai et al. as mentioned in this paper was supported by Earth System and Climate Change Hub of the Australia National Environmental Science Programme, and Centre for Southern Hemisphere Oceans Research, an international collaboration between CSIRO and Qingdao National Laboratory for Marine Sciences and Technology.
Journal ArticleDOI
Climate impacts of the El Niño–Southern Oscillation on South America
Wenju Cai,Wenju Cai,Michael J. McPhaden,Alice M. Grimm,Regina R. Rodrigues,Andréa S. Taschetto,René D. Garreaud,Boris Dewitte,Germán Poveda,Yoo-Geun Ham,Agus Santoso,Agus Santoso,Benjamin Ng,Weston Anderson,Guojian Wang,Guojian Wang,Tao Geng,Tao Geng,Hyun-Su Jo,José A. Marengo,Lincoln M. Alves,Marisol Osman,Marisol Osman,Shujun Li,Shujun Li,Lixin Wu,Christina Karamperidou,Ken Takahashi,Carolina Vera,Carolina Vera +29 more
TL;DR: In this paper, the authors synthesize the understanding of ENSO teleconnections to South America, focusing on the mechanisms and diversity of resulting Teleconnections, and outline the impacts of the El Nino-Southern Oscillation on South America. But, while the understanding has improved, with implications for prediction and projection, uncertainty remains in regards to the robustness of the impacts, interbasin climate interactions and interplay with greenhouse warming.
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Recent global decline in endorheic basin water storages.
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TL;DR: It is suggested the necessity for long-term monitoring of water storage variation in the global endorheic system and the inclusion of its net contribution to future sea level budgeting.
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