COMPARATIVE ANALYSIS OF HEAVY PRECIPITATION IN NON-MOUNTAINOUS REGIONS OF BULGARIA

Groisman, P., Knight R., Easterling D., Karl T., Hegerl G., Razuvaev V., Trends in intense precipitation in the climate record. J. Climate, vol.18,pp. 1326 –1350, 2005;

IPCC, Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation. A Special Report of Working Groups I and II of the Intergovernmental Panel on Climate Change [Field, C.B., V. Barros, T.F. Stocker, D. Qin, D.J. Dokken, K.L. Ebi, M.D. Mastrandrea, K.J. Mach, G.-K. Plattner, S.K. Allen, M. Tignor, and P.M. Midgley (eds.)]. Cambridge University Press, Cambridge, UK, and New York, NY, USA, 582 pp., 2012; International Multidisciplinary Scientific GeoConfenferences SGEM 2015 www.sgem.org 15th International Multidisciplinary Scientific GeoConferences SGEM2015

Min, S. K., Zhang X., Zwiers F., Hegerl G.C., Human contribution to more - intense precipitation extremes. Nature, vol. 470, pp. 378–381, 2011;

Bocheva, L.,T. Marinova, P. Simeonov, I. Gospodinov, Variability and trends of extreme precipitation events over Bulgaria (1961 – 2005). Atm.Res., vol. 93, pp. 490-497, 2009;

Nastos, P.T., C.S. Zerefos, Decadal changes in extreme daily precipitation in Greece. Adv.in Geosc., vol.16, pp. 55-62, 2008;

Fuchedzhiev, G, G. Stoicheva, E. Bogeva, Guidelines for coding of the operational meteorological information. BAS, General office “Hydrology and Meteorology” press, 127 pp., 1981 (In Bulgarian);

Package Kendall from: R: A Language and Environment for Statistical Computing, R Development Core Team, R Foundation for Statistical Computing,Vienna, Austria, 2008, {ISBN} 3 -900051-07 -0}, http://www.R - project.org;

StatSoft, Inc., STATISTICA (data analysis software system), version 6, 2004 (www.statsoft.com );

Koleva, E., V. Alexandrov, Drought in the Bulgarian low regions during the 20 th century. Theor. and Appl. Climat., vol. 92, pp.113-120, 2008;

Nikolova N., Boroneant C., Observed changes in precipitation in Danube river lower basin in the context of climate change. Forum geographic. S.C.G.P.M., vol.10, Issue 1, pp. 117-128, 2011;

Tsonevski I., Campins J., Genoves A., Jansa A., 2010. Atmospheric patterns for heavy precipitation in Bulgaria. Rom. Jour. of Meteor., vol. 1, pp. 1-12, 2010;

Livada I., Charalambous G., Assimakopoulous M.N., Spatial and temporal study of precipitation characteristics over Greece. Theor. Appl. Climatol., vol.93, pp. 45-55, 2008. International Multidisciplinary Scientific GeoConfenferences SGEM 2015 www.sgem.org

Groisman, P., Knight R., Easterling D., Karl T., Hegerl G., Razuvaev V., Trends in intense precipitation in the climate record. J. Climate, vol.18,pp. 1326 –1350, 2005;

IPCC, Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation. A Special Report of Working Groups I and II of the Intergovernmental Panel on Climate Change [Field, C.B., V. Barros, T.F. Stocker, D. Qin, D.J. Dokken, K.L. Ebi, M.D. Mastrandrea, K.J. Mach, G.-K. Plattner, S.K. Allen, M. Tignor, and P.M. Midgley (eds.)]. Cambridge University Press, Cambridge, UK, and New York, NY, USA, 582 pp., 2012; International Multidisciplinary Scientific GeoConfenferences SGEM 2015 www.sgem.org 15th International Multidisciplinary Scientific GeoConferences SGEM2015

Min, S. K., Zhang X., Zwiers F., Hegerl G.C., Human contribution to more - intense precipitation extremes. Nature, vol. 470, pp. 378–381, 2011;

Bocheva, L.,T. Marinova, P. Simeonov, I. Gospodinov, Variability and trends of extreme precipitation events over Bulgaria (1961 – 2005). Atm.Res., vol. 93, pp. 490-497, 2009;

Nastos, P.T., C.S. Zerefos, Decadal changes in extreme daily precipitation in Greece. Adv.in Geosc., vol.16, pp. 55-62, 2008;

Fuchedzhiev, G, G. Stoicheva, E. Bogeva, Guidelines for coding of the operational meteorological information. BAS, General office “Hydrology and Meteorology” press, 127 pp., 1981 (In Bulgarian);

Package Kendall from: R: A Language and Environment for Statistical Computing, R Development Core Team, R Foundation for Statistical Computing,Vienna, Austria, 2008, {ISBN} 3 -900051-07 -0}, http://www.R - project.org;

StatSoft, Inc., STATISTICA (data analysis software system), version 6, 2004 (www.statsoft.com );

Koleva, E., V. Alexandrov, Drought in the Bulgarian low regions during the 20 th century. Theor. and Appl. Climat., vol. 92, pp.113-120, 2008;

Nikolova N., Boroneant C., Observed changes in precipitation in Danube river lower basin in the context of climate change. Forum geographic. S.C.G.P.M., vol.10, Issue 1, pp. 117-128, 2011;

Tsonevski I., Campins J., Genoves A., Jansa A., 2010. Atmospheric patterns for heavy precipitation in Bulgaria. Rom. Jour. of Meteor., vol. 1, pp. 1-12, 2010;

Livada I., Charalambous G., Assimakopoulous M.N., Spatial and temporal study of precipitation characteristics over Greece. Theor. Appl. Climatol., vol.93, pp. 45-55, 2008. International Multidisciplinary Scientific GeoConfenferences SGEM 2015 www.sgem.org