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Determination of the surface temperature and the temperature drop in the skin layer from a moving vessel using IR data

  • Satellite Hydrophysics
  • Published:
Physical Oceanography

Abstract

In this paper methods are given of the IR radiometric determination of the temperature of the radiating oceanic layer,T s, and the determination on its basis of the temperature drop in the skin layer,dt, from on board a ship underway, which allows for the emissivity of the sea surface and the contribution of the atmosphere to the upward radiation of the sea surface. The seawater temperatureT w was registered by a contact sensor towed along the ship at a depth of 0.1–0.4 m. The valuedt=T s−T w was found to be within the limits of 0.07 to −0.85 K, being on average 0.33 K. The near-surface wind speedv (v=1–13 m s−1) had the best relationship withdt;dt=−0.66+0.06v. The empirical values ofdt were compared with the model ones obtained by the well-known formulae for the conditions of forced and free convection of the surface layer.

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Authors
  1. N. E. Lebedev
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  2. V. M. Savos'kin
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  3. S. V. Stanichny
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Additional information

Translated by Mikhail M. Trufanov.

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Lebedev, N.E., Savos'kin, V.M. & Stanichny, S.V. Determination of the surface temperature and the temperature drop in the skin layer from a moving vessel using IR data. Phys. Oceanogr. 6, 161–166 (1995). https://doi.org/10.1007/BF02197693

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  • DOI: https://doi.org/10.1007/BF02197693

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