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1

Semi-empirical modelling of backscatering anf light reflection coefficients in WC1 seas

100%
Wozniak B., Smekot-Wensierski W., Darecki M.
Oceanological Studies
|
1995
|
issue 68/8
61-90
EN
The paper reports on the semi-empirically modelled dependences of the backscattering coefficient and the irradiance and radiation reflection coefficients on the chlorophyl concetration Ca in WC1-type waters.
2

Chlorophyll vs AVHRR satelite data during Skagex Experiment

100%
Darecki M., Kowalczuk P., Sagan S., Krezel A.
Oceanological Studies
|
1993
|
issue 64/3
49-50
3

A preliminary study of the spectral characteristics of the upward radiance field in the surface layer of the Baltic.An empirical algorithm for the remote detection of chlorophyll concentration

100%
Darecki M., Olszewski J., Kowalczuk P.
Oceanological Studies
|
1995
|
issue 68/8
27-49
EN
The first results of experimental research into relations between the diffuse reflectance spectra of seawater and the concentrations of chlorophyll and total suspended mater in the surface layer are presented.The results allowed the preliminary classification of these waters into two basic groups, which differ from each other in the maximum reflectance and in the concentration ranges of total suspended matter.Each of the basic groups can be divided into two sub-groups, differing in the shape of the reflectance spectrum (defining the water colour), chlorophyll concentration and the level of correlation between concentrations of chloriophyll and total suspended matter.On the basis of above data a local algorithm for the radiometric estimation of chlorophyll content in the surface layer of the BAltic is also developed and presentes.
4

On the usefulness of NOAA-AVHRR satelite data for estimating the component content in Baltic Sea water

100%
Oleszewski J., Kowalczuk P., Darecki M.
Oceanological Studies
|
1995
|
issue 68/8
51-60
EN
The hypothetical response of the visible channel of the NOAA satelite detectors is discussed in order to discover to what extend the content of Baltic water can be distinguished.The experimental data from the spring of 1993 shows that, the applicability of the detector has been proven only in the direct evaluation of total suspended matter (TSM) concentration.The limitation ranges of TSM concentration for good and poor AVHRR detection are given.The results are illustrated with some AVHRR images, processed into the spatial distribution of total suspended in the Baltic's surface layer.
5

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

100%
Olszewski R., Darecki M., Sokolski M.
Oceanological Studies
|
1995
|
issue 68/8
15-25
EN
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.
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