Wyniki wyszukiwania

1

Comparison of some characteristics of Polish and Hungarian arable fields vertical structure of the vegetation and weed cover as possible factors contributing to the population decline of the great bustard [Otis tarda]

100%

Takacs V.

Animal Science. Scientific Papers of Agricultural University of Poznan

|

2002

|

tom 04

2

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Inherent optical properties and particulate matter distribution in summer season in waters of Hornsund and Kongsfjorden, Spitsbergen

80%

Sagan S., Darecki M.

Oceanologia

|

2018

|

tom 60

|

nr 1

Two Spitsbergen fjords, Hornsund and Kongsfjorden, are known for being under different hydrological regimes. The first is cold, separated from warm Atlantic water by East Spitsbergen Current, while Kongsfjorden is frequently penetrated by relatively warm Atlantic water. On the other hand, both are under strong influence of water discharge from glaciers and land freshwater input. During the period of observation in both fjords a dominant water mass was Surface Water, which originates mainly from glacial melt. The presence of suspended matter introduced with melt water in Surface Water is reflected by highest values of light attenuation and absorption coefficients recorded in areas close to glacier both in Hornsund and Kongsfjorden. In Hornsund the maximum light attenuation coefficient cpg(555) was 5.817 m−1 and coefficient of light absorption by particles ap(676) = 0.10 m−1. In Kongsfjorden the corresponding values were 26.5 m−1 and 0.223 m−1. In Kongsfjorden suspended matter of the size class 20–200 μm dominated over fractions smaller than 20 μm while in Hornsund dominating size fraction was 2–20 μm. The results provide an evidence of considerable range of variability of the optical properties mainly due to glacial and riverine runoff. The scale of variability of particulate matter in Kongsfjorden is bigger than in Hornsund. Most of the variability in Hornsund can be attributed to glaciers discharge and a presence of particles of mineral origin, while in Kongsfjorden the organic and mineral particles contribute almost equally to defining the optical properties of water.

3

The application of EOF in the analysis of the variability of water temperature, salinity and density in selected regions of the Norwegian Sea

80%

Jankowski A.

Oceanologia

|

1993

|

tom 35

Ograniczanie wyników

2 Oceanologia

1 Animal Science. Scientific Papers of Agricultural University of Poznan

1 Darecki M.

1 Jankowski A.

1 Sagan S.

1 Takacs V.

1 2018

1 2002

1 1993

Comparison of some characteristics of Polish and Hungarian arable fields vertical structure of the vegetation and weed cover as possible factors contributing to the population decline of the great bustard [Otis tarda]

Inherent optical properties and particulate matter distribution in summer season in waters of Hornsund and Kongsfjorden, Spitsbergen

The application of EOF in the analysis of the variability of water temperature, salinity and density in selected regions of the Norwegian Sea