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Titel |
Meteorological impacts of sea-surface temperature associated with the humid airflow from Tropical Cyclone Talas (2011) |
VerfasserIn |
M. Yamamoto |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
0992-7689
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Digitales Dokument |
URL |
Erschienen |
In: Annales Geophysicae ; 32, no. 7 ; Nr. 32, no. 7 (2014-07-23), S.841-857 |
Datensatznummer |
250121085
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Publikation (Nr.) |
copernicus.org/angeo-32-841-2014.pdf |
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Zusammenfassung |
This paper examines meteorological impacts of sea-surface temperature (SST)
in the presence of the humid airflow from Tropical Cyclone Talas (2011). To
investigate the influence of the SST on the severe weather in and around Japan,
sensitivity simulations were conducted using six SST data products covering a
period of 7 days. The upward sea-surface latent heat flux that
accumulated over the 7-day period was high around the Kuroshio during the
slow passage of the tropical cyclone. Large differences were found among the
individual SST products around the southern coast of Japan. The coastal warm
SST anomaly of ~ 1.5 °C enhanced the surface upward latent
heat fluxes (by 60 to 80%), surface southeasterly winds (by 6 to
8%), and surface water mixing ratios (by 4%) over the coastal sea
area. The enhanced latent heat flux resulting from the coastal SST anomaly
contributed to the further enhancement of the latent heat flux itself via a
positive feedback with the amplified surface horizontal wind. The SST
anomalies produced an anomaly in 7-day precipitation (ca. 40 mm) along the
mountainsides and over a coastal area where the surface wind anomaly was
locally large. Thus, coastal SST error is important in the atmospheric simulation
of accumulated evaporation and precipitation associated with tropical
cyclones making landfall. |
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