Trends and extremes of wave fields in the north-eastern part of the Baltic Proper

• Autorzy: Broman B. , Hammarklint T. , Rannat K. , Soomere T. , Valdmann A.
• Konferencja: The 5th Baltic Sea Science Congress, Sopot, 20-24 June 2005
• Języki publikacji: EN

Abstrakty

EN

The paper analyses one of the longest contemporary wave measurements in the northern Baltic Sea, performed at Almagrundet 1978-2003. This record contains the roughest instrumentally measured wave conditions (significant wave height = c. 7.8 m) in the northern Baltic Proper until December 2004. The data for the years 1979-95, the period for which the data are the most reliable, show a linear rising trend of 1.8% per annum in the average wave height. The seasonal variation in wave activity follows the variation in wind speed. The monthly mean significant wave height varies from 0.5 m in May-July to 1.3-1.4 m in December-January. No corrections have been made in the analysis to compensate for missing values, for their uneven distribution, or for ice cover.

Słowa kluczowe

EN

wind waves; Baltic Sea; wave climate; wave measurements

• Wydawca: Polish Academy of Sciences, Institute of Oceanology ; Elsevier
• Czasopismo: Oceanologia
• Rocznik: 2006
• Tom: No. 48 (S)
• Strony: 165--184
• Opis fizyczny: bibliogr. 32 poz., fot., wykr.

Twórcy

autor

Broman B.

autor

Hammarklint T.

autor

Rannat K.

autor

Soomere T.

autor

Valdmann A.

• Centre for Non-linear Studies, Institute of Cybernetics, Tallinn University of Technology, Akadeemia tee 21, EE-12618 Tallinn, Estonia,

Bibliografia

• Bacon S., Carter D. J. T., 1991, The wave climate changes in the North-Atlantic and North Sea, Int. J. Climatol., 11, 545-558.
• Blomgren S., Larsson M., Hanson H., 2001, Numerical modelling of the wave climate in the southern Baltic Sea, J. Coast. Res., 17 (2), 342-352.
• Boukhanovsky A. V., Lavrenov I.V., Lopatoukhin L. J., Rozhkov V.A., Divinsky B.V., Kos'yan R.D., Ozhan E., Abdalla S., 1999, Persistence wave statistics for Black and Baltic seas, Proc. Int. MEDCOAST Conf. "Wind and wave climate of the Mediterranean and the Black Sea", Antalya, Turkey, 199 -210.
• Davidan I.N., Lopatoukhin L. I., Rozhkov V.A., 1978, Wind sea as a probabilistic hydrodynamic process, Gidrometeoizdat, Leningrad, 287 pp., (in Russian).
• Davidan I.N., Lopatoukhin L. I., Rozhkov V.A., 1985, Wind waves in the world oceans, Gidrometeoizdat, Leningrad, 256 pp., (in Russian).
• Gayer G., Günther H., Winkel N., 1995, Wave climatology and extreme value analysis for the Baltic Sea area offt he Warnemünde harbour entrance, Dt. Hydrogr. Z., 47, 109-130.
• Gulev S.K., Hasse L., 1999, Changes of wind waves in the North Atlantic over the last 30 years, Int. J. Climatol., 19 (10), 1091-1117.
• IAHR working group on wave generation and analysis, 1989, List of sea-state parameters, J. Waterw. Port Coast. Ocean Eng., 115, 793-808.
• Jönsson A., Broman B., Rahm L., 2002, Variations in the Baltic Sea wave fields, Ocean Eng., 30, 107-126.
• Jönsson A., Danielsson A., Rahm L., 2005, Bottom type distribution based on wave friction velocity in the Baltic Sea, Cont. Shelf Res., 25 (3), 419-435.
• Kahma K., 1981, On two-peaked wave spectra, Finn. Mar. Res., 248, 87-116.
• Kahma K., Pettersson H., 1993, Wave statistics from the Gulf of Finland, Finn. Inst. Mar. Res. Internal Rep. No 1/1993, (in Finnish with English summary).
• Kahma K., Pettersson H., 1994, Wave growth in a narrow fetch geometry, Global Atmos. Ocean Syst., 2, 253-263.
• Kahma K., Pettersson H., Tuomi L., 2003, Scatter diagram wave statistics from the northern Baltic Sea, Finn. Inst. Mar. Res. Rep. Ser. No 49, 15-32.
• Kahma K., Rantanen E., Saarinen J., 1983, Wave data from the southern Bothnian Sea 1973-1975, 1981, Finn. Inst. Mar. Res. Internal Rep. No 1/1983, (in Finnish with English summary).
• Mårtensson N., Bergdahl L., 1987, On the wave climate of the Southern Baltic, Dept. Hydraulics, Chalmers Univ. Technol., Göteborg, Rep. Ser. A:15,
• Mietus M., (co-ordinator), 1998, The climate of the Baltic Sea Basin, Marine meteorology and related oceanographic activities, World Meteorol. Org., Geneva, Rep. No 41.
• Mietus M., von Storch H., 1997, Reconstruction of the wave climate in the Proper Baltic Basin, April 1947-March 1988, GKSS Rep. No 97/E/28, Geesthacht.
• Orlenko L.R., (ed.), 1984, Studies of the hydrometeorological regime of Tallinn Bay, Gidrometeoizdat, Leningrad, (in Russian).
• Paplińska B., 1999, Wave analysis at Lubiatowo and in the Pomeranian Bay based on measurements from 1997/1998 - comparison with modelled data (WAM4 model), Oceanologia, 41( 2), 241-254.
• Pettersson H., 1994, Directional wave statistics from the southern Bothnian Sea 1992, Finn. Inst. Mar. Res. Internal Rep. No 5/1994, (in Finnish with English summary).
• Pettersson H., 2001, Directional wave statistics from the Gulf of Finland 1990-1994, Finn. Inst. Mar. Res. Rep. Ser. No 44, 1-37, (in Finnish with English summary).
• Pettersson H., 2004, Wave growth in a narrow bay, Ph. D. Thesis, Finn. Inst. Mar. Res. Contributions No 9.
• Pettersson H., Boman H., 2002, High waves and sea level during the November storm, Annual report 2001, Finn. Inst. Mar. Res., Helsinki, p. 7.
• Soomere T., 2003, Anisotropy of wind and wave regimes in the Baltic Proper, J. Sea Res., 49 (4), 305-316.
• Soomere T., 2005, Wind wave statistics in Tallinn Bay, Boreal Environ. Res., 10 (2), 103-118.
• Soomere T., Behrens A., Tuomi L., Nielsen J.W., 2006, Unusual wave conditions in the northern Baltic Sea during windstorm Gudrun in January 2005, Geophys. Res. Abstr., 8, paper 02851.
• Soomere T., Keevallik S., 2001, Anisotropy of moderate and strong winds in the Baltic Proper, Proc. Estonian Acad. Sci. Eng., 7 (1), 35-49.
• Suursaar Ű., Kullas K., Otsmann M., Saaremäe I., Kuik J., Merilain M., 2006, Cyclone Gudrun in January 2005 and modelling its hydrodynamic consequences in the Estonian coastal waters, Boreal Environ. Res., 11 (2), 143-159.
• Svensson J., 1984, Vågdata från svenska kustvatten 1983, Projectresultat Rfn/LET 1984:26.
• Vikebo F., Furevik T., Furnes G., Kvamsto N.G., Reistad M., 2003, Wave height variations in the North Sea and on the Norwegian Continental Shelf 1881 -1999, Cont. Shelf Res., 23 (3-4), 251-263.
• WASA Group, 1995, The WASA project: Changing storm and wave climate in the northeast Atlantic and adjacent seas?, Proc. 4th Int. Workshop 'Wave Hindcasting and Forecasting, Banff, Canada, October 16-20, 31-44, [also: GKSS Rep. 96/E/61].