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CREATED:20260814T072926Z
DESCRIPTION:Interdecadal Variation of the South Asian High\n\n\n\nMr. Guang Yang\n\nPh.D. Candidate\n\nDepartment of Atmospheric Sciences, S.O.E.S.T.\n\nUniversity of Hawaii at Manoa\n\n\n                            \nSeminar Date:      Wednesday, October 9, 2019\n\nRefreshments:      3:00pm at MSB courtyard\n\n                             Cookies, Coffee & Tea Provided\n\nSeminar Time:      3:30pm\n\nLocation:              Marine Sciences Building, MSB 100\n\n\n\nAbstract:\n\n\nThe characteristics and possible physical mechanism of interdecadal variation of the intensity of the South Asian High (SAH) in summer are analyzed using the NCEP/NCAR reanalysis data and NOAA extended reconstructed sea surface temperature (SST) data. The results indicate that a remarkable interdecadal transition occurred in the late 1970s that increased the intensity of SAH, or, an abrupt climate change was around 1978. A comparative analysis between the weak and strong period of the SAH intensity shows that the related anomalous patterns of the atmospheric circulation (including wind field, air temperature field and vertical velocity field) are nearly opposite to each other. The surface latent heat flux anomalies over the plateau (especially in the northwest of the plateau) in summer exert great influence on the interdecadal variation of the SAH intensity and the surface sensible heat flux anomalies play a more crucial role. Consistent with the interdecadal variation of the SAH intensity, the monopole mode of the tropical Indian Ocean SST in summer also experienced a low to high transition in the late 1970s. To some extent, this can reveal the impact of the anomalous monopole mode of the tropical Indian Ocean SST in summer on interdecadal variation of the SAH.
DTEND;TZID=Pacific/Honolulu:20191010T023000Z
DTSTAMP:20260814T072926Z
DTSTART;TZID=Pacific/Honolulu:20191010T013000Z
LAST-MODIFIED:20260814T072926Z
LOCATION:Marine Sciences Building, MSB 100
PRIORITY:5
SEQUENCE:0
SUMMARY;LANGUAGE=en-us:Atmospheric Sciences Seminar
TRANSP:OPAQUE
UID:178672856636189web-support-l@lists.hawaii.edu
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