Coupled ocean-atmospheric waves on the equatorial front

Details Coupled ocean-atmospheric waves on the equatorial front Coupled ocean-atmospheric waves on the equatorial front

Oct 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998georl..25.3863x&link_type=abstract

Geophysical Research Letters, Volume 25, Issue 20, p. 3863-3866

Physics

50

Oceanography: Physical: Air/Sea Interactions, Meteorology And Atmospheric Dynamics: Climatology, Meteorology And Atmospheric Dynamics: Remote Sensing, Meteorology And Atmospheric Dynamics: Boundary Layer Processes

Scientific paper

Striking 20-30-day sea surface temperature waves observed along the equatorial front in the later half of the year are generally believed to be of an oceanic origin. Here we report the detection of atmospheric waves that are unambiguously tied to these oceanic waves, using new satellite measurements of surface winds. A general circulation model simulation reveals that these atmospheric waves have a shallow vertical structure trapped in the planetary boundary layer (PBL), unlike El Nino/Southern Oscillation where changes in deep convection are the cause of anomalous winds. Vertical wave motion penetrates well above the PBL and is likely to impact the distribution and transport of climatically important gas species such as ozone and dimethyl sulfide.

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