ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
The Impact of Seasonal Drops of SST in offshore along South America on ENSO Ev ent in Autumn of Recent Years
- Article
- Figures
- Metrics
- Preview PDF
- Reference
- Related
- Cited by
- Materials
Abstract:
Firstly, characteristics in the evolvement of SST in offshore of South America since 1950 were studied. It was found that the trends of annual undulati on amplitude of monthly mean SST in Nino 1+2 kept increasing since 1999, which c aused seasonal drops of SST in northeastern tropical East Pacific. The minimums of monthly mean SST obviously being lower than normal in autumn are the major ca use, and such a situation kept for so long time that it does not come forth befo re year 1950s. Further study reveals that seasonal drops of SST in offshore of S o uth America in autumn weakened the possibility of ENSO warm event, and made the 2002/2003 El Nino be an ENSO event which got through the longest time to transfo rm from La Nina episode into El Nino episode since the 1950s.
Keywords:
Project Supported:
Clc Number:
Mobile website
