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Transparency of the North Sea and Baltic Sea - a Secchi depth data mining study

100%

Aarup T.

Oceanologia

2002

tom 44

nr 3

This paper presents the results of a Secchi depth data mining study for the North Sea – Baltic Sea region. 40,829 measurements of Secchi depth were compiled from the area as a result of this study. 4.3% of the observations were found in the international data centers [ICES Oceanographic Data Center in Denmark and the World Ocean Data Center A (WDC–A) in the USA], while 95.7% of the data was provided by individuals and ocean research institutions from the surrounding North Sea and Baltic Sea countries. Inquiries made at the World Ocean Data Center B (WDC–B) in Russia suggested that there could be significant additional holdings in that archive but, unfortunately, no data could be made available. The earliest Secchi depth measurement retrieved in this study dates back to 1902 for the Baltic Sea, while the bulk of the measurements were gathered after 1970. The spatial distribution of Secchi depth measurements in the North Sea is very uneven with surprisingly large sampling gaps in the Western North Sea. Quarterly and annual Secchi depth maps with a 0.5◦×0.5◦ spatial resolution are provided for the transition area between the North Sea and the Baltic Sea (4◦E–16◦E, 53◦N–60◦N).

Development of tools for ecological quality assessment in Polish marine areas according to the Water Framework Directive. Part III - Secchi depth

84%

Lysiak-Pastuszak E., Krzyminski W., Lewandowski L.

Oceanological and Hydrobiological Studies

2009

tom 38

nr 3

113-124

Total organic carbon as a new index for monitoring trophic states in lakes

67%

Dunalska J. A.

Oceanological and Hydrobiological Studies

2011

tom 40

nr 2

The relationship between Secchi depth and chlorophyll a concentration in the waters of the southern Baltic

67%

Matciak M., Renk H.

Oceanological Studies

1997

tom 26

nr 2-3

Ograniczanie wyników

2 Oceanological and Hydrobiological Studies

1 Oceanologia

1 Oceanological Studies

1 Aarup T.

1 Dunalska J. A.

1 Krzyminski W.

1 Lewandowski L.

1 Lysiak-Pastuszak E.

1 Matciak M.

1 Renk H.

1 2011

1 2009

1 2002

1 1997

Wyniki wyszukiwania

Transparency of the North Sea and Baltic Sea - a Secchi depth data mining study

Development of tools for ecological quality assessment in Polish marine areas according to the Water Framework Directive. Part III - Secchi depth

Total organic carbon as a new index for monitoring trophic states in lakes

The relationship between Secchi depth and chlorophyll a concentration in the waters of the southern Baltic