Mechanisms causing east Australian spring rainfall differences between three strong El Niño events
Abstract
Strong El Niño events have had significant impacts on society through their association with extreme events, such as droughts and floods. However, questions remain as to the robustness of strong El Niño events in forcing regional climate variability. The strong 1982, 1997 and 2015 El Niño events were of similar type and strength, but in eastern Australia they were associated with differing spring rainfall anomaly magnitudes and patterns. To understand these differences, we first determined the most important processes for teleconnecting the El Niño signal to east Australian spring rainfall using historical relationships with winds and sea level pressure. Then, using a 60-member atmospheric model ensemble, we estimated the influence of sea surface temperatures (SSTs) on Australian atmospheric circulation and rainfall during these three El Niño events relative to internal variability. We found that the different east Australian spring rainfall anomalies for each of the three El Niño events are best explained by differences in the strength of the meridional wind component of the regional circulation. All three El Niño events exhibited a positive sea level pressure anomaly to the south of Australia, which was associated with rainfall deficits along the southeast Australian coast. The experiments indicate the regional atmosphericmore »
- Authors:
-
- Monash Univ., Melbourne, VIC (Australia). Earth, Atmosphere and Environment, and ARC Centre of Excellence for Climate Systems Science; Commonwealth Scientific and Industrial Research Organization (CSIRO), Aspendale, VIC (Australia)
- Monash Univ., Melbourne, VIC (Australia). Earth, Atmosphere and Environment and ARC Centre of Excellence for Climate Extremes; National Center for Atmospheric Research, Boulder, CO (United States)
- Monash Univ., Melbourne, VIC (Australia). Earth, Atmosphere and Environment; Commonwealth Scientific and Industrial Research Organization (CSIRO), Aspendale, VIC (Australia)
- Monash Univ., Melbourne, VIC (Australia). ARC Centre of Excellence for Climate Systems Science
- Monash Univ., Melbourne, VIC (Australia). Earth, Atmosphere and Environment
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Publication Date:
- Research Org.:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1532618
- Report Number(s):
- LLNL-JRNL-768502
Journal ID: ISSN 0930-7575; 958744
- Grant/Contract Number:
- AC52-07NA27344
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Climate Dynamics
- Additional Journal Information:
- Journal Volume: 53; Journal Issue: 5; Journal ID: ISSN 0930-7575
- Publisher:
- Springer-Verlag
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 54 ENVIRONMENTAL SCIENCES; Precipitation; Extreme El Niño; Super El Niño; Climate variability
Citation Formats
van Rensch, Peter, Arblaster, Julie, Gallant, Ailie J. E., Cai, Wenju, Nicholls, Neville, and Durack, Paul J. Mechanisms causing east Australian spring rainfall differences between three strong El Niño events. United States: N. p., 2019.
Web. doi:10.1007/s00382-019-04732-1.
van Rensch, Peter, Arblaster, Julie, Gallant, Ailie J. E., Cai, Wenju, Nicholls, Neville, & Durack, Paul J. Mechanisms causing east Australian spring rainfall differences between three strong El Niño events. United States. https://doi.org/10.1007/s00382-019-04732-1
van Rensch, Peter, Arblaster, Julie, Gallant, Ailie J. E., Cai, Wenju, Nicholls, Neville, and Durack, Paul J. Fri .
"Mechanisms causing east Australian spring rainfall differences between three strong El Niño events". United States. https://doi.org/10.1007/s00382-019-04732-1. https://www.osti.gov/servlets/purl/1532618.
@article{osti_1532618,
title = {Mechanisms causing east Australian spring rainfall differences between three strong El Niño events},
author = {van Rensch, Peter and Arblaster, Julie and Gallant, Ailie J. E. and Cai, Wenju and Nicholls, Neville and Durack, Paul J.},
abstractNote = {Strong El Niño events have had significant impacts on society through their association with extreme events, such as droughts and floods. However, questions remain as to the robustness of strong El Niño events in forcing regional climate variability. The strong 1982, 1997 and 2015 El Niño events were of similar type and strength, but in eastern Australia they were associated with differing spring rainfall anomaly magnitudes and patterns. To understand these differences, we first determined the most important processes for teleconnecting the El Niño signal to east Australian spring rainfall using historical relationships with winds and sea level pressure. Then, using a 60-member atmospheric model ensemble, we estimated the influence of sea surface temperatures (SSTs) on Australian atmospheric circulation and rainfall during these three El Niño events relative to internal variability. We found that the different east Australian spring rainfall anomalies for each of the three El Niño events are best explained by differences in the strength of the meridional wind component of the regional circulation. All three El Niño events exhibited a positive sea level pressure anomaly to the south of Australia, which was associated with rainfall deficits along the southeast Australian coast. The experiments indicate the regional atmospheric circulation and rainfall differences were forced by SSTs during spring of 1982 and 1997, with their influence on the circulation in 2015 remaining unclear. We also show that SSTs adjacent to Australia further contributed to the modelled rainfall differences mainly by regulating moisture availability.},
doi = {10.1007/s00382-019-04732-1},
journal = {Climate Dynamics},
number = 5,
volume = 53,
place = {United States},
year = {Fri Mar 22 00:00:00 EDT 2019},
month = {Fri Mar 22 00:00:00 EDT 2019}
}
Web of Science
Works referenced in this record:
Asymmetry in ENSO Teleconnection with Regional Rainfall, Its Multidecadal Variability, and Impact
journal, September 2010
- Cai, Wenju; van Rensch, Peter; Cowan, Tim
- Journal of Climate, Vol. 23, Issue 18
The Predictability of Interdecadal Changes in ENSO Activity and ENSO Teleconnections
journal, October 2006
- Power, Scott; Haylock, Malcolm; Colman, Rob
- Journal of Climate, Vol. 19, Issue 19
Dynamical Seasonal Forecasts during the 1997/98 ENSO Using Persisted SST Anomalies
journal, June 2001
- Frederiksen, Carsten S.; Zhang, Huqiang; Balgovind, Ramesh C.
- Journal of Climate, Vol. 14, Issue 12
Southern Australian rainfall and the subtropical ridge: Variations, interrelationships, and trends
journal, January 2009
- Larsen, S. H.; Nicholls, N.
- Geophysical Research Letters, Vol. 36, Issue 8
The relationship between the decline of Southeastern Australian rainfall and the strengthening of the subtropical ridge
journal, April 2012
- Timbal, B.; Drosdowsky, W.
- International Journal of Climatology, Vol. 33, Issue 4
The role of tropical modes of variability in recent rainfall deficits across the Murray-Darling Basin: TROPICAL VARIABILITY AND RAINFALL DEFICIT IN THE MDB
journal, September 2011
- Timbal, B.; Hendon, H.
- Water Resources Research, Vol. 47, Issue 12
Increasing frequency of extreme El Niño events due to greenhouse warming
journal, January 2014
- Cai, Wenju; Borlace, Simon; Lengaigne, Matthieu
- Nature Climate Change, Vol. 4, Issue 2
A synoptic climatological analysis of rainfall variability in south-eastern Australia
journal, March 1988
- Whetton, P. H.
- Journal of Climatology, Vol. 8, Issue 2
Local and remote causes of the southern Australian autumn-winter rainfall decline, 1958–2007
journal, January 2009
- Nicholls, Neville
- Climate Dynamics, Vol. 34, Issue 6
Rainfall along the coast of Peru during strong El Niño events: RAINFALL ALONG THE COAST OF PERU DURING STRONG EL NIÑO EVENTS
journal, September 2017
- Sanabria, Janeet; Bourrel, Luc; Dewitte, Boris
- International Journal of Climatology, Vol. 38, Issue 4
Continued increase of extreme El Niño frequency long after 1.5 °C warming stabilization
journal, July 2017
- Wang, Guojian; Cai, Wenju; Gan, Bolan
- Nature Climate Change, Vol. 7, Issue 8
Analysis of the Nonlinearity of El Niño–Southern Oscillation Teleconnections
journal, August 2014
- Frauen, Claudia; Dommenget, Dietmar; Tyrrell, Nicholas
- Journal of Climate, Vol. 27, Issue 16
Evidence of local sea surface temperatures overriding the southeast Australian rainfall response to the 1997-1998 El Niño: EL NIÑO IMPACTS MODULATED BY LOCAL SSTS
journal, November 2015
- van Rensch, Peter; Gallant, Ailie J. E.; Cai, Wenju
- Geophysical Research Letters, Vol. 42, Issue 21
An Investigation of the Links between ENSO Flavors and Rainfall Processes in Southeastern Australia
journal, November 2009
- Brown, Jaclyn N.; McIntosh, Peter C.; Pook, Michael J.
- Monthly Weather Review, Vol. 137, Issue 11
Local sea surface temperatures add to extreme precipitation in northeast Australia during La Niña: SSTs ADD TO EXTREME PRECIPITATION
journal, May 2012
- Evans, Jason P.; Boyer-Souchet, Irène
- Geophysical Research Letters, Vol. 39, Issue 10
Dreary state of precipitation in global models: MODEL AND OBSERVED PRECIPITATION
journal, December 2010
- Stephens, Graeme L.; L'Ecuyer, Tristan; Forbes, Richard
- Journal of Geophysical Research: Atmospheres, Vol. 115, Issue D24
Understanding Rossby wave trains forced by the Indian Ocean Dipole
journal, June 2017
- McIntosh, Peter C.; Hendon, Harry H.
- Climate Dynamics, Vol. 50, Issue 7-8
An Overview of CMIP5 and the Experiment Design
journal, April 2012
- Taylor, Karl E.; Stouffer, Ronald J.; Meehl, Gerald A.
- Bulletin of the American Meteorological Society, Vol. 93, Issue 4
Can Australian Multiyear Droughts and Wet Spells Be Generated in the Absence of Oceanic Variability?
journal, September 2016
- Taschetto, Andréa S.; Gupta, Alex Sen; Ummenhofer, Caroline C.
- Journal of Climate, Vol. 29, Issue 17
The Defining Characteristics of ENSO Extremes and the Strong 2015/2016 El Niño: ENSO Extremes
journal, December 2017
- Santoso, Agus; Mcphaden, Michael J.; Cai, Wenju
- Reviews of Geophysics, Vol. 55, Issue 4
Sensitivity of Australian Rainfall to Inter–El Niño Variations
journal, August 2007
- Wang, Guomin; Hendon, Harry H.
- Journal of Climate, Vol. 20, Issue 16
Impact of the El Niño–Southern Oscillation, Indian Ocean Dipole, and Southern Annular Mode on Daily to Subdaily Rainfall Characteristics in East Australia
journal, May 2012
- Pui, Alexander; Sharma, Ashish; Santoso, Agus
- Monthly Weather Review, Vol. 140, Issue 5
Influence of Global-Scale Variability on the Subtropical Ridge over Southeast Australia
journal, December 2011
- Cai, Wenju; van Rensch, Peter; Cowan, Tim
- Journal of Climate, Vol. 24, Issue 23
Teleconnection Pathways of ENSO and the IOD and the Mechanisms for Impacts on Australian Rainfall
journal, August 2011
- Cai, Wenju; van Rensch, Peter; Cowan, Tim
- Journal of Climate, Vol. 24, Issue 15
Understanding the Contrast of Australian Springtime Rainfall of 1997 and 2002 in the Frame of Two Flavors of El Niño
journal, April 2015
- Lim, Eun-Pa; Hendon, Harry H.
- Journal of Climate, Vol. 28, Issue 7
Relationships between southeastern Australian rainfall and sea surface temperatures examined using a climate model
journal, January 2010
- Watterson, I. G.
- Journal of Geophysical Research, Vol. 115, Issue D10
Connecting Indonesian Fires and Drought With the Type of El Niño and Phase of the Indian Ocean Dipole During 1979-2016
journal, August 2018
- Pan, Xiaohua; Chin, Mian; Ichoku, Charles M.
- Journal of Geophysical Research: Atmospheres
More extreme swings of the South Pacific convergence zone due to greenhouse warming
journal, August 2012
- Cai, Wenju; Lengaigne, Matthieu; Borlace, Simon
- Nature, Vol. 488, Issue 7411
A Synoptic Classification of Inflow-Generating Precipitation in the Snowy Mountains, Australia
journal, August 2015
- Theobald, Alison; McGowan, Hamish; Speirs, Johanna
- Journal of Applied Meteorology and Climatology, Vol. 54, Issue 8
East Australian Rainfall Events: Interannual Variations, Trends, and Relationships with the Southern Oscillation
journal, June 1993
- Nicholls, Neville; Kariko, Alex
- Journal of Climate, Vol. 6, Issue 6
Atmospheric response to sea surface temperature anomalies during El Nino 1997/98 as simulated by ECHAM4
journal, July 2000
- Grotzner, Anselm; Latif, Mojib; Dommenget, Dietmar
- Quarterly Journal of the Royal Meteorological Society, Vol. 126, Issue 567
The Steady Linear Response of a Spherical Atmosphere to Thermal and Orographic Forcing
journal, June 1981
- Hoskins, Brian J.; Karoly, David J.
- Journal of the Atmospheric Sciences, Vol. 38, Issue 6
The Roles of Climate Change and El Niño in the Record Low Rainfall in October 2015 in Tasmania, Australia
journal, December 2016
- Karoly, David J.; Black, Mitchell T.; King, Andrew D.
- Bulletin of the American Meteorological Society, Vol. 97, Issue 12
Changes of Probability Associated with El Niño
journal, December 2000
- Sardeshmukh, Prashant D.; Compo, Gilbert P.; Penland, Cécile
- Journal of Climate, Vol. 13, Issue 24
The non-linear impact of El Niño, La Niña and the Southern Oscillation on seasonal and regional Australian precipitation
journal, May 2017
- Chung, Christine; Power, Scott
- Journal of Southern Hemisphere Earth System Science, Vol. 67, Issue 1
High-quality spatial climate data-sets for Australia
journal, December 2009
- Jones, D.; Wang, W.; Fawcett, R.
- Australian Meteorological and Oceanographic Journal, Vol. 58, Issue 04
The ACCESS coupled model: description, control climate and evaluation
journal, March 2013
- Bi, D.; Dix, M.; Marsland, S.
- Australian Meteorological and Oceanographic Journal, Vol. 63, Issue 1
Characteristics and variability of synoptic features associated with cool season rainfall in southeastern Australia
journal, September 2009
- Risbey, James S.; Pook, Michael J.; McIntosh, Peter C.
- International Journal of Climatology, Vol. 29, Issue 11
On the Remote Drivers of Rainfall Variability in Australia
journal, October 2009
- Risbey, James S.; Pook, Michael J.; McIntosh, Peter C.
- Monthly Weather Review, Vol. 137, Issue 10
The ERA-Interim reanalysis: configuration and performance of the data assimilation system
journal, April 2011
- Dee, D. P.; Uppala, S. M.; Simmons, A. J.
- Quarterly Journal of the Royal Meteorological Society, Vol. 137, Issue 656
Global and Regional Scale Precipitation Patterns Associated with the El Niño/Southern Oscillation
journal, August 1987
- Ropelewski, C. F.; Halpert, M. S.
- Monthly Weather Review, Vol. 115, Issue 8
PCMDI AMIP SST and sea-ice boundary conditions version 1.1.4
dataset, January 2018
- Durack, Paul J.; Taylor, Karl E.
- Earth System Grid Federation
The ENSO-Australian rainfall teleconnection in reanalysis and CMIP5
journal, May 2014
- King, Andrew D.; Donat, Markus G.; Alexander, Lisa V.
- Climate Dynamics, Vol. 44, Issue 9-10
Seasonal Relationships between Australian Rainfall and the Southern Oscillation
journal, October 1983
- McBride, J. L.; Nicholls, N.
- Monthly Weather Review, Vol. 111, Issue 10
Strong sub-seasonal wintertime cooling over East Asia and Northern Europe associated with super El Niño events
journal, June 2017
- Geng, Xin; Zhang, Wenjun; Stuecker, Malte F.
- Scientific Reports, Vol. 7, Issue 1
The non-linear impact of El Nino, La Nina and the Southern Oscillation on seasonal and regional Australian precipitation
journal, January 2017
- Chung, Christine T. Y.; Power, Scott B.
- Journal of Southern Hemisphere Earth Systems Science, Vol. 67, Issue 1
Atmospheric response to sea surface temperature anomalies during El Niño 1997/98 as simulated by ECHAM4
journal, July 2000
- Grötzner, Anselm; Latif, Mojib; Dommenget, Dietmar
- Quarterly Journal of the Royal Meteorological Society, Vol. 126, Issue 567