Global analysis of the pressure adjustment mechanism over sea surface temperature fronts using AIRS/Aqua data

Teruhisa Shimada, Shoshiro Minobe

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

We investigate the signatures of atmospheric pressure adjustment mechanism for surface wind convergence/divergence over major sea surface temperature (SST) frontal regions using global observations of satellite sounding and scatterometer. Lower tropospheric air thickness, which includes a sea-level pressure component modified by air temperature in the marine atmospheric boundary layer, is analyzed, and the relation between the Laplacian of the thickness and wind convergence are examined. Among four SST frontal regions in mid-latitudes, correlation between the thickness Laplacian and wind convergence is the largest over the Gulf Stream followed by those for the Agulhas Return Current and for the Brazil/Malvinas Current, and relatively small but still significant over the Kuroshio-Oyashio Extension. These correlations strongly suggest that the pressure adjustment mechanism ubiquitously plays an important role in air-sea interaction over the global SST frontal regions. Furthermore, air temperatures in the first two regions exhibit SST-relating signatures even in the mid-troposphere.

Original languageEnglish
Article numberL06704
JournalGeophysical Research Letters
Volume38
Issue number6
DOIs
Publication statusPublished - 2011 Mar 1

ASJC Scopus subject areas

  • Geophysics
  • Earth and Planetary Sciences(all)

Fingerprint Dive into the research topics of 'Global analysis of the pressure adjustment mechanism over sea surface temperature fronts using AIRS/Aqua data'. Together they form a unique fingerprint.

  • Cite this