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Modelling of bio-optical parameters of open ocean waters

100%

Pelevin V. N., Rostovtseva V. V.

Oceanologia

|

2001

|

tom 43

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nr 4

An original method for estimating the concentration of chlorophyll pigments, absorption of yellow substance and absorption of suspended matter without pigments and yellow substance in detritus using spectral diffuse attenuation coefficient for downwelling irradiance and irradiance reflectance data has been applied to sea waters of different types in the open ocean (case 1). Using the effective numerical single parameter classification with the water type optical index m as a parameter over the whole range of the open ocean waters, the calculations have been carried out and the light absorption spectra of sea waters tabulated. These spectra are used to optimize the absorption models and thus to estimate the concentrations of the main admixtures in sea water. The value of m can be determined from direct measurements of the downward irradiance attenuation coefficient at 500 nm or calculated from remote sensing data using the regressions given in the article. The sea water composition can then be readily estimated from the tables given for any open ocean area if that one parameter m characterizing the basin is known.

2

In-water remote sensing algorithms for the detection of chlorophyll and yellow substances in the Pomeranian Bay

100%

Olszewski J., Kowalczuk P., Darecki M.

Oceanologia

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1999

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tom 41

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nr 3

3

The position of the seasonal thermocline in southern Baltic waters polluted with crude oil

100%

Mrozek-Lejman J., Karbowniczek-Gratkowska G.

Oceanologia

|

1996

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tom 38

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nr 3

4

Experimental study of the composite parts of the light-beam attenuation process in the waters of the Gulf of Gdansk

84%

Dera J., Gohs L., Wozniak B.

Oceanologia

|

1978

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tom 10

5

Response of a lidar-induced fluorescence signal to yellow substance absorption

84%

Drozdowska V., Kowalczuk P.

Oceanologia

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1999

|

tom 41

|

nr 4

6

The application of the optical classification of waters in the Baltic Sea [Case 2 Waters]

84%

Kaczmarek S., Wozniak B.

Oceanologia

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1995

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tom 37

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nr 2

7

Spectral light absorption by yellow substance in the Kattegat-Skagerrak area

67%

Hojerslev N. K., Aas E.

Oceanologia

|

2001

|

tom 43

|

nr 1

More than 1500 water samples were taken from the Kattegat, the Skagerrak and adjacent waters. The value of the absorption coefficient of yellow substance at 310 nm was found to varyf rom 0.06 to 7.4 m−1 in the open coastal waters, with a mean value of 1.3 m−1. The corresponding wavelength-averaged value (250–450 nm) of the semilogarithmic spectral slope of the coefficient ranges from 0.008 to 0.042 nm−1, and the mean value is 0.023 nm−1. Closer to river discharges, as in the fjords, the values of the slope seem to be more constant at around 0.0175±0.0015 nm−1. In this area the slope must then be known in order to compare absorption at different wavelengths or to model the yellow substance absorption.

8

Analysis of temporal and spatial variability of yellow substance absorption in the southern Baltic

67%

Kowalczuk P., Kaczmarek S.

Oceanologia

|

1996

|

tom 38

|

nr 1

Ograniczanie wyników

8 Oceanologia

3 Kowalczuk P.

2 Kaczmarek S.

2 Wozniak B.

1 Aas E.

1 Darecki M.

1 Dera J.

1 Drozdowska V.

1 Gohs L.

1 Hojerslev N. K.

1 Karbowniczek-Gratkowska G.

1 Mrozek-Lejman J.

1 Olszewski J.

1 Pelevin V. N.

1 Rostovtseva V. V.

2 2001

2 1999

2 1996

1 1995

1 1978

Modelling of bio-optical parameters of open ocean waters

In-water remote sensing algorithms for the detection of chlorophyll and yellow substances in the Pomeranian Bay

The position of the seasonal thermocline in southern Baltic waters polluted with crude oil

Experimental study of the composite parts of the light-beam attenuation process in the waters of the Gulf of Gdansk

Response of a lidar-induced fluorescence signal to yellow substance absorption

The application of the optical classification of waters in the Baltic Sea [Case 2 Waters]

Spectral light absorption by yellow substance in the Kattegat-Skagerrak area

Analysis of temporal and spatial variability of yellow substance absorption in the southern Baltic