The seasonal variation of undercurrent and temperature in the equatorial Pacific jointly derived from buoy measurement and assimilation analysis
Chu, Peter C.
MetadataShow full item record
Based on the TOGA-TAO buoy chain observed data in the equatorial Pacific and the assimilation analysis results from SODA (simple ocean data assimilation analysis), the role of the meridional cells in the subsurface of the tropical Pacific was discussed. It was found that, the seaonal varying direction of EUC (the quatorial Undercurrent) in the Pacific is westwards beginning from the eastern equatorial Pacific in the boreal spring. The meridional cell south of the equator plays important role on this seasonal change of EUC. On the other hand, although the varying directional is westwards, the seasonal variation of temperature in the same region gets its minimum values in the boreal autumn beginning from the eastern equatorial Pacific. The meridional cell north of the equator is most responsible for the seasonal temperature variation in the eastern equatorial Pacific while the meridional cell south of the equator mainly controls the seasonal temperature change in the central Pacific. it is probably true that the asymmetry by the equator is an important factor influencing the seasonal cycle of EUC and temperature in the tropical Pacific.
Showing items related by title, author, creator and subject.
Semtner, Albert J., Jr.; Chervin, Robert M. (American Geophysical Union, 1992-04-15);A concerted effort has been made to simulate the global ocean circulation with resolved eddies, using a highly optimized model on the best available supercomputer. An earlier 20-year spin-up has been extended for 12.5 ...
The climatological seasonal response of the ocean mixed layer in the equatorial and tropical Pacific Ocean Ries, Harry J. (Monterey, California. Naval Postgraduate School, 1988);Seasonal changes of mixed layer depth (MLD) can be related to the forcing by the net surface heating and wind speed. This is shown in this study by comparing the monthly mixed layer depth from temperature profiles in the ...
Annual cycle of Southeast Asia - Maritime Continent rainfall and the asymmetric monsoon transition Chang, C.-P.; Wang, Z.; McBride, J.; Liu, C. H. (2005);In general the Bay of Bengal, Indochina Peninsula and Philippines are in the Asian summer monsoon regime while the Maritime Continent experiences a wet monsoon during boreal winter and a dry season during boreal summer. ...