Investigation of the relation between the dissolved 137cs activity and the simulated salinity in the lithuanian coastal waters

• Autorzy: Davuliene L. , Valkünas L. , Trinkünas G.

Identyfikatory

DOI

01.3001.0008.8048

• Języki publikacji: EN

Abstrakty

EN

In May 2000 the hydrodynamic model developed at the Federal Maritime and Hydrographic Agency in Hamburg. Germany was adopted to the Lithuanian part of the Baltic Sea. I nm grid is chosen. Comparison of measurements (1999.05.15) with the real time simulations of the particular period showed that in general, in the modelled area. the simulated salinity was higher than measured with most differences in the coastal zone. Average salinity distributions and the distribution of salinity standard deviations were analysed. The coastal area of 15 nm from the seashore, especially to the north of the Klaipeda Strait, is distinguished by the highest variance of the salinity. The relation between the salinity and the dissolved 137 Cs activity concentration was observed. However, 137 Cs activity bursts 1.5-2 times higher at the coast than the average, cannot be explained and are more likely to be related to the uplifted particulate matter.

Słowa kluczowe

EN

Cs activity; salinity

• Wydawca: Instytut Morski w Gdańsku
• Czasopismo: Biuletyn Instytutu Morskiego w Gdańsku
• Rocznik: 2001
• Tom: Vol. 28, No. 2
• Strony: 49--54
• Opis fizyczny: Bibliogr. 11 poz., rys.

Twórcy

autor

Davuliene L.

• Institute of Physics, Vilnius, Lithuania

autor

Valkünas L.

• Institute of Physics, Vilnius, Lithuania

autor

Trinkünas G.

• Institute of Physics, Vilnius, Lithuania

Bibliografia

• [1] Kleine E., 1994, Das operationelle Modell des BSH für Nordsee und Ostsee. Konzeption und Übersicht, Bundesamt für Seeschiffahrt und Hydrographie, Hamburg, 132 pp.
• [2] Nies H., S. P. Nielsen, 1995, Radioactivity in the Baltic Sea, [in:] Radionuclides in the oceans. Inputs and invertories, Eds P. Guegueniat, P. Germain, H. Metivier, EDP Science Publ., Les Ulis, 219-230.
• [3] Tarasiuk N., N. Špirkauskaite, 1994, Radioactive Contamination of the Coastal Zone of the Baltic Sea of Lithuania, Atmospheric Physics, 16, 85-89.
• [4] Tarasiuk N., N. Špirkauskaite, G. Lujaniene, 1999, The Formation of137Cs Concentrations in the Nemunas River Accumulation Zone, Environmental and Chemical Physics 21, 2, 27-32.
• [5] Lujaniene G. et al., (to be published).
• [6] Morküniene R., 2000, Radioactive Contamination and Peculiarities of its Changes in the Baltic Sea at Lithuanian Seashore, Ph.D. thesis, Vilnius Gediminas Technical University, 119 pp. (In Lithuanian).
• [7] Tiskov V.P., M. I. Belenky et. al., 1996, Radioactivity Research of the Baltic Sea in 1995, Report of Radium Institute, St Petersburg. (In Russian).
• [8] Dubra J., V. Dubra, 1998, Calculation of water dynamics in the Lithuanian Nearshore of the Baltic Sea, Centre of Marine Research, Scientific and Information Publication, 49-57. (In Lithuanian).
• [9] Vyšniauskas L, H. Lesys, 1998, Peculiarities of the hydrological regime in the Lithuanian ExclusiveEconomical Zone in 1992-1996, Centre of Marine Research, Scientific and Information Publication, 57-67.
• [10] Styro D., Zh. Bumeliene, M. Lukinskiene, R. Mokuniene, 2001, 137Cs and 90Sr behavioural regularities in the south-eastern part of the Baltic Sea, J. Environmental Radioactivity 53, 27-39.
• [11] Tarasiuk N., N. Špirkauskaite, G. Lujaniene, 1996, Use of the radioactive tracers (Be, 137Cs) in the study of the Baltic Sea coastal zone self cleaning, Atmospheric Physics 18, 2, 25-30.