ISSN 1006-8775CN 44-1409/P

DIAGNOSTIC ANALYSIS OF MEAN MERIDIONAL CIRCULATION ANOMALY IN LOW LATITUDES IN RELATION TO ZONAL MEAN SST ANOMALY


  • The mass stream function of zonal mean meridional circulation is calculated in terms of NCEP/NCAR monthly meridional wind speed and vertical velocity, and the climatic and anomalous features of zonal mean SST and meridional circulation are investigated. Results show that (1) a joint ascending branch of Northern and Southern Hadley circulation is on the side of the summer hemisphere near the equator ,being well consistent with the extremum of [SST ],and a strong descending by the winter-hemispheric side.(2)El Nino-related [SST] in low latitudes is an important outer-forcing source for anomaly meridional circulation, which is affected by seasonal variation of basic airflow and [SST ], and interannual and interdecadal changes of [SST] .
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CHENG Ya-jun, WANG Pan-xing, LI Li-ping. DIAGNOSTIC ANALYSIS OF MEAN MERIDIONAL CIRCULATION ANOMALY IN LOW LATITUDES IN RELATION TO ZONAL MEAN SST ANOMALY[J]. Journal of Tropical Meteorology, 2002, 8(2): 158-167.
CHENG Ya-jun, WANG Pan-xing, LI Li-ping. DIAGNOSTIC ANALYSIS OF MEAN MERIDIONAL CIRCULATION ANOMALY IN LOW LATITUDES IN RELATION TO ZONAL MEAN SST ANOMALY[J]. Journal of Tropical Meteorology, 2002, 8(2): 158-167.
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