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Article: El Niño phases embedded in Asian and North American drought reconstructions

TitleEl Niño phases embedded in Asian and North American drought reconstructions
Authors
Issue Date2014
PublisherElsevier. The Journal's web site is located at http://www.elsevier.com/locate/quascirev
Citation
Quaternary Science Reviews, 2014, v. 85, p. 20-34 How to Cite?
AbstractThe amplitude of El Niño-Southern Oscillation (ENSO) varies substantially at each phase of its evolution, affecting the timing and patterns of atmospheric teleconnections around the globe. Instrumental records are too short to capture the full behavior of ENSO variability. Here we use the well-validated Monsoon Asia Drought Atlas (MADA) and North America Drought Atlas (NADA) for the past 700 years, and show that tree-ring records from different regions represent tropical sea surface temperature (SST) conditions at various phases of ENSO. Three modes of tree-ring based summer drought variability are found to be correlated with ENSO: summer droughts over the Maritime Continent and Southwest North America (NA), and a dipole mode between Central and South Asia. A lagged correlation analysis is performed to determine the time when precipitation and temperature anomaly imprints on summer droughts as recorded in tree-rings. Drought anomalies in the Maritime Continent and Southwest NA represent ENSO at the developing and peak phases respectively, while those over Central/South Asia are associated with tropical-wide SST anomalies (including the Indian Ocean) at the decay phase of ENSO. Thus proxy records from different regions can provide valuable information on long-term behavior of ENSO at different phases.
Persistent Identifierhttp://hdl.handle.net/10722/198142
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLi, Jen_US
dc.contributor.authorXie, Sen_US
dc.contributor.authorCook, Een_US
dc.date.accessioned2014-06-25T02:48:44Z-
dc.date.available2014-06-25T02:48:44Z-
dc.date.issued2014en_US
dc.identifier.citationQuaternary Science Reviews, 2014, v. 85, p. 20-34en_US
dc.identifier.urihttp://hdl.handle.net/10722/198142-
dc.description.abstractThe amplitude of El Niño-Southern Oscillation (ENSO) varies substantially at each phase of its evolution, affecting the timing and patterns of atmospheric teleconnections around the globe. Instrumental records are too short to capture the full behavior of ENSO variability. Here we use the well-validated Monsoon Asia Drought Atlas (MADA) and North America Drought Atlas (NADA) for the past 700 years, and show that tree-ring records from different regions represent tropical sea surface temperature (SST) conditions at various phases of ENSO. Three modes of tree-ring based summer drought variability are found to be correlated with ENSO: summer droughts over the Maritime Continent and Southwest North America (NA), and a dipole mode between Central and South Asia. A lagged correlation analysis is performed to determine the time when precipitation and temperature anomaly imprints on summer droughts as recorded in tree-rings. Drought anomalies in the Maritime Continent and Southwest NA represent ENSO at the developing and peak phases respectively, while those over Central/South Asia are associated with tropical-wide SST anomalies (including the Indian Ocean) at the decay phase of ENSO. Thus proxy records from different regions can provide valuable information on long-term behavior of ENSO at different phases.en_US
dc.languageengen_US
dc.publisherElsevier. The Journal's web site is located at http://www.elsevier.com/locate/quascireven_US
dc.relation.ispartofQuaternary Science Reviewsen_US
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Quaternary Science Reviews. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Quaternary Science Reviews, 2014, v. 85, p. 20-34. DOI: 10.1016/j.quascirev.2013.11.014en_US
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.titleEl Niño phases embedded in Asian and North American drought reconstructionsen_US
dc.typeArticleen_US
dc.identifier.emailLi, J: jinbao@hku.hken_US
dc.identifier.authorityLi, J=rp01699en_US
dc.description.naturepostprint-
dc.identifier.doi10.1016/j.quascirev.2013.11.014en_US
dc.identifier.hkuros229161en_US
dc.identifier.volume85en_US
dc.identifier.spage20en_US
dc.identifier.epage34en_US
dc.identifier.isiWOS:000331412200002-

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