EAP - Estonian Journal of Engineering Publications

Estonian Journal of Engineering

2013 2012 2011 2010 2009 2008 Vol. 14, Issue 4 Vol. 14, Issue 3 Vol. 14, Issue 2 Vol. 14, Issue 1

Open Access Journal

Synoptic weather types that have caused heavy precipitation in Estonia in the period 1961–2005; pp. 195–208

PDF | doi: 10.3176/eng.2008.3.01

Authors

Olga Mätlik, Piia Post

Abstract

The subjects of the study are heavy precipitation and weather types, caused by it, in Estonia in the period 1961–2005. Precipitation is labeled “heavy rainfall” when its 24-hour accumulated sum is at least 50 mm. The work was concentrated on manual analysis and classification of synoptic situations as well as on the definition of tracks of cyclones, fronts and troughs in order to better understand the circumstances leading to the heavy rainfalls. Most of heavy rainfalls have been caused by the passage of different depressions and frontal systems. The role played by convective precipitation is less significant. Most frequently, heavy rainfall is brought to Estonia by the southern cyclones, born in the region of the Black Sea or the Mediterranean Sea.

References

1. Cook, C. M., Saucier, D. M., Thomas, A. W. and Prato, F. S. Exposure to ELF magnetic and ELF-modulated radiofrequency fields: the time course of physiological and cognitive effects observed in recent studies (2001–2005). Bioelectromagnetics, 2006, 27, 613–627.
1. Merilain, M. and Post, P. Heavy rainfall – only last years summer feature in Estonia? Publ. Geophys. Univ. Tartuensis, 2006, 50, 144–154 (in Estonian with a summary in English).

2. Tammets, T. Distribution of extreme wet and dry days in Estonia in last 50 years. Proc. Estonian Acad. Sci. Eng., 2007, 13, 252–259.

3. Heino, R., Brázdil, R., Forland, E., Tuomenvirta, H., Alexandersson, H., Beniston, M., Pfister, C., Rebetez, M., Rosenhagen, G., Rösner, S. and Wibig, J. Progress in the study of climatic extremes in Northern and Central Europe. Clim. Change, 1999, 42, 151–181.
doi:10.1023/A:1005420400462

4. Groisman, P. Ya., Knight, R. W., Easterling, D. R., Karl, T. R., Hegerl, G. C. and Razuvaev, V. N. Trends in intense precipitation in the climate record. J. Climate, 2005, 18, 1326–1350.
doi:10.1175/JCLI3339.1

5. Kjellström, E. and Ruosteenoja, K. Present-day and future precipitation in the Baltic Sea region as simulated in a suite of regional climate models. Clim. Change, 2007, 81, 281–291.
doi:10.1007/s10584-006-9219-y

6. Grigorjev, S., Gulev, S. and Zolina, O. Innovative software facilitates cyclone tracking and analysis. EOS, 2000, 81, 16.

7. Prilipko, G. I. ed. The Climate of Tallinn. Gidrometeoizdat, Leningrad, 1982 (in Russian).

Back to Issue

→ Back issues