Exercise in downscaling on sea surface temperature along Chinese coast

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 pres...

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Bibliographic Details
Published in:Chinese journal of oceanology and limnology 2000-06, Vol.18 (2), p.110-116
Main Authors: Shu-min, Lian, Kai, Wang, Mao-chang, Cui, Zorita, Eduardo
Format: Article
Language:English
Subjects:
Atmospheric circulation
Atmospheric forcing
Atmospheric models
Climate
Climate models
Correlation analysis
Environmental factors
Global climate
Global climate models
Marine
Mean sea level
Monsoons
Parameters
Rainfall
Sea level pressure
Sea surface
Sea surface temperature
Spatial discrimination
Spatial resolution
Surface temperature
Temperature
Variation
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Summary: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.[PUBLICATION ABSTRACT]
ISSN:0254-4059
2096-5508
1993-5005
2523-3521
DOI:10.1007/BF02842569