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Deutsche Hydrografische Zeitschrift

, Volume 48, Issue 3–4, pp 299–323 | Cite as

Time series analysis of monthly mean data of temperature, salinity, nutrients, suspended matter, phyto- and zooplankton at eight locations on the northwest european shelf

  • M. Visser
  • S. Batten
  • G. Becker
  • P. Bot
  • F. Colijn
  • P. Damm
  • D. Danielssen
  • D. Van den Eynde
  • L. FØyn
  • A. Frohse
  • G. Groeneveld
  • R. Laane
  • W. van Raaphorst
  • G. Radach
  • H. Schultz
  • J. Sündermann
Article

Summary

In this study an overview is given of the time series analysis of monthly mean data of physical, chemical and biological parameters. The time series are available at eight locations on the Northwest European Shelf. The integrated evaluation of those time series gives the opportunity to look for connections between the different parts of the shelf. Temperature and salinity seem to be externally forced. For the nutrients and biological parameters the local forcing is dominating the time series. It is concluded that there are areas that are comparable to each other (freshwater dominated boxes along the Belgian and Dutch coasts and German Bight; Atlantic dominated boxes in the English Channel and off the Scottish coast), although significant cross-correlations are hardly found. The Irish Sea can be regarded as a separate ecosystem.

Keywords

Spring Bloom German Bight German Journal Annual Component Dutch Coast 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Zeitreihenanalyse monatlicher Mittelwerte von Temperatur, Salzgehalt, NÄhrstoffen, Schwebstoffen und Phyto-und Zooplankton in acht Regionen auf dem nordwesteuropÄischen Schelf

Zusammenfassung

In dieser Studie wird eine Analyse von Zeitreihen monatlicher Mittelwerte physikalischer, chemischer und biologischer Parameter gegeben. Die Zeitreihen sind für acht Regionen auf dem nordwesteuropÄischen Schelf vorhanden. Die zusammenfassende Auswertung solcher Zeitserien gibt die Möglichkeit, nach ZusammenhÄngen auf verschieden Teilen des Schelfs zu suchen. Temperatur und Salzgehalt werden offenbar extern angelegt. Für NÄhrstoffe und biologische Parameter beherrscht lokale Anregung die Zeitserien. Man kann folgern, da\ es Regionen gibt, die miteinander vergleichbar sind (von Sü\wasser dominierte Gebiete entlang der belgischen und hollÄndischen Küste und in der Deutschen Bucht, vom Atlantik dominierte Gebiete im Kanal und vor der schottischen Küste), jedoch liegen kaum significante Kreuzkorrelationen vor. Die Irische See kann als separates ökosystem betrachtet werden.

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References

  1. Aebischer, N. J., J. C. Coulson andJ. M. Colebrook, 1990: Parallel long-term trends across four marine trophic levels and weather.Nature,347, 753–755.CrossRefGoogle Scholar
  2. R. SÆtre, 1989: Analysis of the Chrysochromulina polylepis bloom in the Skagerrak, May 1988. Environmental conditions and possible causes, Bergen Scientific Centre, BSC 89/1, pp. 38.Google Scholar
  3. Berge, G. andL. FØyn, 1988. Rapport om oppblomstringen av Chrysochromulina polylepis i mai-juni 1988. Overvåkning, varsling, oppfØlgende tiltak. Havforsknings-institutt, Bergen, pp. 16.Google Scholar
  4. Bot, P., W. van Raaphorst, S. Batten, R. Laane, K. Philippart, G. Radach, A. Frohse, H. Schultz, D. Van den Eynde andF. Colijn, 1996: Comparison of Changes in the Annual Variability of the Seasonal Cycles of Chlorophyll, Nutrients and Zooplankton at Eight Locations on the North-West European Shelf (1960–1994). This Volume, 349–364.Google Scholar
  5. Cadé, G. C., andJ. Hegeman, 1993, Persisting high levels of primary production at declining phosphate concentrations in the Dutch coastal area (Marsdiep).Neth. J. Sea Res.,31, 147–152.CrossRefGoogle Scholar
  6. Danielssen, D. S., L. Davidsson, L. Edler, E. Fogelqvist, S. Fonselius, L. Foyn, L. Hernroth, B. HÄkansson, I. Olsson andE. Svendsen, 1991: SKAGEX: Some preliminary results, ICES, CM. 1991/C:2, pp. 14.Google Scholar
  7. Dickson, R. R., H. H. Lamb, S.-A. Malmberg andJ. M. Colebrook, 1975: Climatic reversal in the northern North Atlantic,Nature,256, 479–482.CrossRefGoogle Scholar
  8. Ellett, D. J., andS. R. Jones, 1994: Surface temperature and salinity time series from the Rockall Channel, 1948–1992. Fisheries Research Data Report No. 36, Directorate of Fisheries Research, Lowestoft, UK, pp. 26.Google Scholar
  9. Hickel, W., P. Mangelsdorf andJ. Berg, 1993: The human impact in the German Bight: Eutrophication during three decades (1962–1991).HelgolÄnder Meeresunters.,47, 243–263.CrossRefGoogle Scholar
  10. Hurrell, J. W., 1995, Decadal trends in the North Atlantic Oscillation: regional temperatures and precipitation.Science,269, 676–679.CrossRefGoogle Scholar
  11. Jones, P. D., T. M. L. Wigley andJ. M. Gregory, 1994: England and Wales area-average precipitation amount. 975–983. In:T. A. Boden, D. P. Kaiser, R. J. Sepanski andF. W. Stoss (eds.), Trends 1993. A Compendium of Data on Global Change. ORNL/CDIAC-65. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, Oak Ridge, Tenn., U.S.A.Google Scholar
  12. Kreyszig, E., 1970: Introductory Mathematical Statistics: principles and methods. New York: Wiley, pp. 470.Google Scholar
  13. Laane, R., W. van Leussen, G.Radach, J. Berlamont, J. Sündermann, W. van Raaphorst andF. Colijn, 1996: North-West European Shelf Programme (NOWESP): An Overview. This volume, 217–229.Google Scholar
  14. Lomb, N. R., 1976, Least-squares frequency analyses of unequally spaced data,Ap. Space Sc.,39, 447–462.CrossRefGoogle Scholar
  15. Maestrini, S. Y., andE. Granéli, 1991: Environmental conditions and ecological mechanisms which led to the 1988 Chrysochromulina polylepis bloom: a hypothesis.Oceanologica Acta,14, 397–412.Google Scholar
  16. McCullagh, P. andJ. A. Nelder, 1989: Generalized linear models (2nd ed). London: Chapman and Hall, pp. 261.Google Scholar
  17. Nicholls, N., G. V. Gruza, J. Jouzel, T. R. Karl, L. A. Ogallo andD. E. Parker, 1996: Observed climate variability and change. In: Climate Change 1995. The science of climate change, J. T. Houghton et al. (eds.), Intergovernmental Panel on Climate Change (IPCC), Cambridge University Press, pp. 572.Google Scholar
  18. Press, W. H., S. A. Teukolsky, W. T. Vetterling andB. P. Flannery, 1992: Numerical recipes in FORTRAN: the art of scientific computing (2nd ed.), Cambridge University Press, pp. 963.Google Scholar
  19. Radach, G., andJ. Berg, 1986: Trends in den Konzentrationen der NÄhrstoffe und des Phytoplanktons in der HelgolÄnder Bucht (Helgoland Reede Daten).Ber. Biol. Anst Helgoland,2, 1–63.Google Scholar
  20. Radach, G., andM. Bohle-Carbonell, 1990: Struktureigenschaften der meteorologischen, hydrographischen, NÄnrstoff- und Phytoplankton-Langzeitreihen in der Deutschen Bucht bei Helgoland.Ber. Biol. Anst. Helgoland,7, 1–425.Google Scholar
  21. Radach, G., J. Berg andE. Hagmeier, 1990: Long-term changes of annual cycles of meteorological, hydrographic, nutrient, and phytoplankton time series at Helgoland and at FV Elbe 1 in the German Bight.Cont Shelf Res.,10 (4), 305–328.CrossRefGoogle Scholar
  22. Radach, G., J. Gekeler, G. Becker, P. Bot, P. Castagne, F. Colijn, P. Damm, D. Danielssen, L. FØyn, J. Gamble, R. Laane, J. P. Mommaerts, D. Nehring, K. Pegler, W. van Raaphorst, J. Wilson, 1996: The NOWESP Research Data Base. This volume, 242–260.Google Scholar
  23. Scargle, J. D., 1982, Studies in Astronomical time series analysis II. Statistical aspects of spectral analysis of unevenly spaced data. Ap. J.,263, 835–853.CrossRefGoogle Scholar
  24. Smith, J. A., P. E. Damm, M. D. Skogen, R. A. Flather andJ. PÄtsch, 1996: An Investigation into the Variability of Circulation and Transport on the North-West European Shelf Using Three Hydrodynamic Models. This volume, 325–348.Google Scholar
  25. Sündermann, J., G. Becker, P. Damm, D. Van den Eynde, R. Laane, W. van Leussen, T Pohlmann, W. van Raaphorst, G. Radach, H. Schultz andM. Visser, 1996: Decadal variability on the North-West Enropean Shelf. This volume, 365–400.Google Scholar
  26. Svendsen, E., andA. K. Magnusson, 1992. Climatic variability in the North Sea, ICES mar. Sci. Symp.,195:144–158.Google Scholar
  27. Turrell, W.R., E.W. Henderson, G. Slesser, R. Payne andR. D. Adams, 1992: Seasonal changes in the circulation of the northern North Sea.Cont. Shelf Res.,12, 257–286.CrossRefGoogle Scholar
  28. Van Bennekom, A. J., andF. J. Wetsteijn, 1990: The Winter distribution of nutrients in the Southern Bight of the North Sea (1961–1978) and in the estuaries of the Scheldt and the Rhine/Meuse.Neth. J. Sea Res.,25, 75–87.CrossRefGoogle Scholar

Copyright information

© BSH, Hamburg und Rostock 1996

Authors and Affiliations

  • M. Visser
    • 1
  • S. Batten
  • G. Becker
  • P. Bot
  • F. Colijn
  • P. Damm
  • D. Danielssen
  • D. Van den Eynde
  • L. FØyn
  • A. Frohse
  • G. Groeneveld
  • R. Laane
  • W. van Raaphorst
  • G. Radach
  • H. Schultz
  • J. Sündermann
  1. 1.IMAU, Dept. of Physical GeographyUtrecht UniversityTCThe Netherlands

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