Abstract
For the 1988–2006 cold seasons, we investigated the characteristic structures of two types of cold-air outbreaks over the East China Sea: Type N, for which a thick layer of northerly meridional wind was formed during the cold-air outbreak; and Type S, for which an initially thin layer of northerly meridional wind was gradually thickened as the cold-air outbreak developed. The emergence frequencies of Type N and Type S outbreaks are sensitive to winter monsoon intensity at the 500-hectopascal (hPa) level. Type S outbreaks are dominant during strong El Niño events, leading to enhanced southerly meridional flow at 500 hPa over the East China Sea. The development of the 500-hPa Pacific High strongly influences the synoptic-scale structures of the two different types of outbreaks over the East China Sea.
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Acknowledgements
The NCEP/NCAR Reanalysis 1 and CMAP Precipitation data were provided by the NOAA/OAR/ESRL PSD, and the meteorological data at Naha and NINO3 SST data were provided by the JMA.
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Kuriyama, K., Yamamoto, M. Interannual and synoptic-scale features of two types of cold-air outbreaks over the East China Sea during 1988–2006. Theor Appl Climatol 103, 291–304 (2011). https://doi.org/10.1007/s00704-010-0303-x
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DOI: https://doi.org/10.1007/s00704-010-0303-x