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AVHRR images as a tool in the analysis of marine suspended matter in polar regions

100%

Krezel A.

vol. 26

issue 2-3

21-30

The vector analysis technique developed by Stumpf (1987) was used in calculations of the suspended matter concentra-tion field in west Spitsbergen surface waters. The reflectance of the sea surface in AVHRR channels 1 and 2 was taken as input data. As a result of satellite data processing, four near-noon instantaneous distributions of suspended matter in the second half of July 1993 were obtained.

Heavy metals in marine sediments and biota of Spitsbergen

70%

Sikora A., Zajaczkowski M., Pempkowiak J.

Oceanological Studies

1996

vol. 25

issue 3

97-109

Contents of selected heavy metals (Al, Fe, Co, Ni, Cd, Pb, Zn, Cu, Cr) were meas-ured in sediment samples and biota collected off Spitsbergen. Relatively large contents of met-als in sediments were accompanied by small contents in mussels. This was attributed to the fact that sediments contain a significant amount of minerals rich in heavy metals of low bioavail-ability. Solid speciation revealed that metals incorporated into mineral lattice were by far more abundant than those adsorbed, bound to carbonates and hydroxides, and complexed to organic matter. This also explains scarce bioavailability of metals in the Spitsbergen region.

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2 Oceanological Studies

1 1997

1 1996

1 Krezel A.

1 Pempkowiak J.

1 Sikora A.

1 Zajaczkowski M.

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AVHRR images as a tool in the analysis of marine suspended matter in polar regions

Heavy metals in marine sediments and biota of Spitsbergen