Air-sea feedback during coastal upwelling
Conference
·
OSTI ID:467690
- Naval Research Lab., Stennis Space Center, MS (United States)
The basic dynamics of coastal upwelling are well known. Consider a steady, curl-free, alongshore wind blowing down a coastline. This results in an Ekman divergence. If the resulting Ekman transport is offshore, coastal upwelling ensues. When this occurs, a front develops between the cold, upwelled water and the less dense offshore surface water. This front propagates offshore at a rate determined by the Ekman transport. The question is what effect does this front have on the atmosphere, and is there a feedback between the atmosphere and the ocean. The results of the FASINEX study have shown that the atmospheric boundary layer can respond dramatically to changes in the ocean surface temperature, and this may happen on small scales and quite rapidly. The author hypothesizes that an interaction can occur in which the atmospheric surface layer becomes more stable on the upwelling side of the front due the colder sea surface temperature.
- OSTI ID:
- 467690
- Report Number(s):
- CONF-9409461--
- Country of Publication:
- United States
- Language:
- English
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