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Atmosphere and marginal-sea interaction leading to an interannual variation in cold-air outbreak activity over the Japan Sea

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dc.contributor.author Isobe, Atsuhiko
dc.contributor.author Beardsley, Robert C.
dc.date.accessioned 2010-11-22T21:04:37Z
dc.date.available 2010-11-22T21:04:37Z
dc.date.issued 2007-12-01
dc.identifier.citation Journal of Climate 20 (2007): 5707–5714 en_US
dc.identifier.uri http://hdl.handle.net/1912/4111
dc.description Author Posting. © American Meteorological Society, 2007. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Climate 20 (2007): 5707–5714, doi:10.1175/2007JCLI1779.1. en_US
dc.description.abstract The interannual variation in cold-air outbreak activity over the Japan Sea is investigated using Japan Meteorological Agency buoy 21002 and Quick Scatterometer (QuikSCAT) wind data, Japan Oceanographic Data Center sea surface temperature (SST) data, NCEP–NCAR reanalysis surface wind and sea level pressure (SLP) data, and the winter Arctic Oscillation (AO) index of Thompson and Wallace. Cold-air outbreaks occur during the “winter” November–March period, and wind data for this season for the 19-winter period 1981–2000 were analyzed. Wavelet spectra averaged between 5- and 15-day periods were used to evaluate the intensity of cold-air outbreaks quantitatively. The winter mean wavelet spectra exhibited a clear interannual variation and a significant positive correlation with the AO index, indicating that intensive cold-air outbreaks frequently occur during relatively warm winters caused by a quasi-decadal AO. Based on the SST and SLP data, the low atmospheric surface pressure disturbances tend to develop over the warm East China Sea in warm winters in the positive AO phase. As these low SLP disturbances advance toward the northern Japan islands during the positive AO phase, they intensify more, leading to stronger cold-air outbreaks over the Japan Sea and increased sea surface cooling over the northern Japan Sea. en_US
dc.format.mimetype application/pdf
dc.language.iso en_US en_US
dc.publisher American Meteorological Society en_US
dc.relation.uri http://dx.doi.org/10.1175/2007JCLI1779.1
dc.subject Air-sea interactions en_US
dc.subject Interannual variation en_US
dc.subject Arctic Oscillation en_US
dc.subject Remote sensing en_US
dc.subject Buoy observations en_US
dc.title Atmosphere and marginal-sea interaction leading to an interannual variation in cold-air outbreak activity over the Japan Sea en_US
dc.type Article en_US
dc.identifier.doi 10.1175/2007JCLI1779.1


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