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The hydrological and hydrochemical division of the surface waters in the Gulf of Gdańsk

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The objective of this work was to define regions in the surface layer of the Gulf of Gdansk that are characterised by different natural (temperature, salinity, total water depth) and anthropogenic (concentrations of major nutrients) factors. Additionally, approximate boundaries between the regions distinguished were delineated. To find regions of different hydrological and hydrochemical properties, Ward's method, an agglomerative hierarchical cluster technique, was applied to a data set containing measurements of temperature, salinity, total depths and nutrient concentrations. Cluster analysis divided the surface waters of the Gulf of Gdansk into seven regions. The surface waters in the shallow water part of the Gulf of Gdansk, where six out of the seven regions were located, displayed a distinct diversity which was probably associated with the morphometry of the Gulf, nutrient sources and freshwater input. The last region encompassed the deep-water part of the Gulf of Gdansk and Puck Bay.
Czasopismo
Rocznik
Strony
261--272
Opis fizyczny
Bibliogr. 13 poz., tab., wykr.
Twórcy
autor
autor
  • Institute of Oceanography, Gdańsk University, Al. Marszałka J. Piłsudskiego 46, 81-378 Gdynia, Poland, ocejn@univ.gda.pl
Bibliografia
  • 1. Cyberska B., 1990, Water salinity in the Gdańsk Basin, [in:] The Gulf of Gdańsk, A. Majewski (ed.), Wyd. Geol., 237-255, (in Polish).
  • 2. Falkowska L., Bolałek J., Nowacki J., 1993, Nutrient and oxygen in the Gulf of Gdańsk, Stud. i Mater. Oceanol., 64, 131-162.
  • 3. Lance G. N., Williams W. T., 1966, A generalised sorting strategy for computer classifications, Nature, 212, p. 218.
  • 4. Lance G. N., Williams W. T., 1967, A general theory of classificatory sorting strategies hierarchical systems, Comp. J., 9, 373-380.
  • 5. Marek T., 1989, Cluster analysis in empirical research: Methods SAHN, PWN, Warszawa, 170 pp., (in Polish).
  • 6. Matciak M., Nowacki J., 1995, The Vistula river discharge front – surface observations, Oceanologia, 37 (1), 75-88.
  • 7. Matciak M., Nowacki J., 1996, Hydrological conditions in the area enclosed by the Vistula river discharge front, Prz. Geofiz., 41 (4), 275-285, (in Polish).
  • 8. Nowacki J., 1992, Konzentration der N- und P-Verbindungen im K¨ustengebiet der Danziger Bucht. Die Belastung der Danziger Bucht – ein europ¨aisches Problem globaler Bedeutung, Bibl. Informationssys. Univ. Oldenburg, Oldenburg, 115-123.
  • 9. Nowacki J., 1993a, Gulf morphometry, [in:] Puck Bay, K. Korzeniewski (ed.), Fund. Rozw. Uniw. Gdańs, Gdańsk, 71-78, (in Polish).
  • 10. Nowacki J., 1993b, Temperature, salinity and density of water, [in:] Puck Bay, K. Korzeniewski (ed.), Fund. Rozw. Uniw. Gdańsk, Gdańsk, 79-111, (in Polish).
  • 11. Trzosińska A., 1978, Calculation of water volume of the Gdańsk Basin for a chemical budget of the Baltic Sea, Prz. Geofiz. 23 (31), 7-13, (in Polish).
  • 12. Trzosńska A., 1990, Nitrogen and phosphorus compounds, [in:] The Gulf of Gdańsk, A. Majewski (ed.), Wyd. Geol., 275-291, (in Polish).
  • 13. Ward J. H., 1963, Hierarchical grouping to optimise and objective function, J. Am. Statist. Assoc., 58, 301, 236-244.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUS8-0015-0054
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