Exercise in downscaling on sea surface temperature along Chinese coast
- 39 Downloads
The present study examines the relationship between observed variations of regional hydrographic elements and concurrent large-scale climatological parameters. The former were chosen as the monthly sea surface temperature along the Chinese coast; the latter were chosen as monthly mean sea level pressure and sea surface temperature for the period from 1960 to 1990, which are reasonably well simulated by present day climate models. The variations of the former, due to variations of the regional atmospheric forcing and of oceanic circulation, are not adequately simulated by a global climate model because of insufficient spatial resolution. A statistical “downscaling” strategy is applied to the former.
To better understand their variation mechanism and study the relationship among the environmental parameters in a group, canonical correlation analysis with combined datasets was carried out. The results show that variations of hydrographic elements are heavily forced by the East Asian monsoon through monsoon wind and rainfall.
Key wordsdownscaling sea surface temperature Chinese coast
Unable to display preview. Download preview PDF.
- Cui, M., von Storch, H., Zorita, E., 1995. Coast sea level and the large-scale climate state: A downscaling exercise for the Japanese islands.Tellus 47A: 132–144.Google Scholar
- Li, C., 1990. Interactivity between anomalous winter monsoon in east Asia and El Nino events.Adv. Atmos. Sci. 7: 36–46.Google Scholar
- Tao, S. Y., Chen, L. X., 1987. A review of recent research on the East Asian summer monsoon in China.In: Chang C. P. and Krish-namurti, T. N. ed., Monsoon Meteorology. Oxford University Press, p. 60–92.Google Scholar