Evidence of wind-evaporation-sea surface temperature (WES) feedback in the western Pacific warm pool during the mature phase of the 1997-98 El Niño

Details Evidence of wind-evaporation-sea surface temperature (WES) feedback in the western Pacific warm pool during the mature phase of the 1997-98 El Niño Evidence of wind-evaporation-sea surface temperature (WES) feedback in the western Pacific warm pool during the mature phase of the 1997-98 El Niño

Jun 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011georl..3811603u&link_type=abstract

Geophysical Research Letters, Volume 38, Issue 11, CiteID L11603

Physics

Oceanography: Physical: Air/Sea Interactions (0312, 3339), Oceanography: Physical: Enso (4922)

Scientific paper

Certain features of the wind-evaporation-sea surface temperature (WES) feedback on the 1997-98 El Niño event are demonstrated by observations of sea surface temperature (SST), wind, and heat flux. Anomalous distributions of these parameters are recognized during the December-January-February season. A high-SST (>28°C) region expanded southeastward over 170°W and underscored the SST contrast between the both hemispheres. As a result, cross-equatorial northerly winds with relatively weak easterly winds are dominant within the equatorial band. Concerning heat flux, the latent heat flux from the ocean, which is increased (decreased) north (south) of the equator, is associated with net heat gain (loss) of the ocean in the north (south). These distributions are characteristics of the WES feedback. Temporal evolution of these parameters revealed intensification of cross-equatorial northerly winds and the decrease (increase) in SST at around 3°N (3°S) from January to February.

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