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4 Oceanological Studies

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The impact of non-homogeneity of oil films covering the sea surface on light transmission: theoretical calculations

100%

Otremba Z. , Targowski W.

Oceanological Studies

1994

nr 66/7

3-14

This paper presents the results of numerical calculation of spectral-directional tramsissivity for a non-homogenous thin oil layer, where selected profiles of complex refractivity in the transient layers were assumed.The differences resulting from assuming various types of non-homogeneity in the transient oil layers are shown graphically with transmissivity plotted against wavelength, tickness and the angle of light beam incidence.The method is also suitable for transmissivity prediction for thin interphase layers forming between any media.

The set of oil standards for investigations on the properties of polluted seawater

100%

Kaniewski E. , Otremba Z.

Oceanological Studies

1994

nr 66/7

77-82

Due to necessity of standarization of the material used for investigations of the oil influence on seawater properties, the set of three types of oil has been prepared. The paper presents the mathod of preparing of the oil samples along with physico-chemical data concerning the oils used.

The reflection of light from serawater polluted with thin non-homogenous oil layer:theoretical dependence on wavelength, thickness and angle of incidence

100%

Otremba Z.

Oceanological Studies

1994

nr 66/7

137-148

The paper contains the results of computation of the spectral-directional coefficient of light reflection from aseawater polluted with the thin oil layer. A multilayer model of oil contaminated surface was used to work out the computation algorithm. The results are shown as grephs of function of wavelength, thickness and angle of incidence. Apart from presenting the possibilities of the program packet, a few general conclusions are formulated.

An instrument for measuring the spectral distribution of upward radiance above the sea

100%

Olszewski R. , Darecki M. , Sokolski M.

Oceanological Studies

1995

nr 68/8

15-25

The paper presents a prototype instrument for simultaneous measurements of upweling radiance and downweling irradiance over the sea surface in seven spectral channels.The utility of this instrument in its major applications has been shown.(i) in contactless investigations of sea water components, and (ii) in the calibration and validation of remote sensing data.The paper also presents the technical specifications of the instrument, ita operationg principles and results if field data.