Measurements of the oceanic thermal skin effect

Peter J. Minnett, Murray Smith, Brian Ward

Research output: Contribution to journalArticle

54 Scopus citations

Abstract

Spectroradiometric measurements of the ocean skin temperature and thermometric measurements of the bulk temperature at a depth of about 5. cm taken from the R/V Tangaroa during SAGE (SOLAS/SAGE: surface-ocean lower-atmosphere studies air-sea gas exchange experiment) off New Zealand are analyzed to reveal the wind speed dependence of the temperature difference across the thermal skin layer (Δ T). The wind speeds used here are corrected for flow distortion by the ship. Unlike most previously published measurements of Δ T, these data include those taken during the day, prior analyses being usually restricted to night-time measurements to avoid contamination of the data by diurnal heating. The results show the same dependence of Δ T on wind speed at night-time measurements, with an asymptotic behavior at a value of -0.13. K at high winds. These data show larger Δ T at low wind speeds than previous studies, and there is an indication that this may reveal a dependence on sea surface temperature.

Original languageEnglish (US)
Pages (from-to)861-868
Number of pages8
JournalDeep-Sea Research Part II: Topical Studies in Oceanography
Volume58
Issue number6
DOIs
StatePublished - Mar 15 2011

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Keywords

  • Daytime skin effect
  • Flow distortion correction
  • Marine winds
  • SAGE
  • Skin SST

ASJC Scopus subject areas

  • Oceanography

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