Does it really rain more often on weekends than on weekdays? A case study for Slovenia

Jaka Plečko; Nejc Bezak; Marjeta Škapin Rugelj; Mojca Šraj

doi:10.3986/AGS.2255

Authors

Jaka Plečko Univerza v Ljubljani Fakulteta za gradbeništvo in geodezijo Jamova 2 1000 Ljubljana Tel.: 01 425 40 52
Nejc Bezak Univerza v Ljubljani Fakulteta za gradbeništvo in geodezijo Jamova 2 1000 Ljubljana Tel.: 01 425 40 52
Marjeta Škapin Rugelj Univerza v Ljubljani Fakulteta za gradbeništvo in geodezijo Jamova 2 1000 Ljubljana 01 476 85 56
Mojca Šraj Univerza v Ljubljani Fakulteta za gradbeništvo in geodezijo Jamova 2 1000 Ljubljana Tel.: 01 425 40 52

DOI:

https://doi.org/10.3986/AGS.2255

Keywords:

precipitation, air pollution, weekly precipitation cycle, PM10, statistical tests, Slovenia

Abstract

The article presents the results of precipitation and aerosol (PM₁₀) data analyses in Slovenia. Analyses of rainfall data for some areas of Slovenia, such as the Ljubljana Basin, Zasavje, Šalek Valley, Celje Basin, and the coastal area, suggest that rain on the weekend is more frequent than on weekdays; nevertheless, these deviations are not statistically significant. A comparison of three separate decades showed that the pattern of weekly rainfall in the 21st century is different than that in the last period of the 20th century. The weekly cycle of PM₁₀ for the considered stations is quite similar to that of some of the more contaminated regions of the world. Furthermore, the connection between PM₁₀ and precipitation in most of the analyzed cases was statistically significant.

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References

ARSO, 2015: Arhiv meritev. Internet: http://meteo.arso.gov.si/met/sl/archive (2. 3. 2015).

Arts, I. 2008: Structural time series analysis of meteorological data: In search of weekly cycles in Europe. Diploma thesis, Vrije Universiteit. Amsterdam.

Bell, T. L., Rosenfeld, D., Kim, K. M., Yoo, J. M., Lee, M. I., Hahnenberger, M. 2008: Midweek increase in U.S. summer rain and storm heights suggests air pollution invigorates rainstorms. Journal of geophysical research 113-D2. DOI: https://doi.org/10.1029/2007jd008623

Bezak, N., Brilly, M., Šraj, M. 2015a: Flood frequency analyses, statistical trends and seasonality analyses of discharge data: a case study of the Litija station on the Sava River. Journal of Flood Risk Management (in press). DOI: https://doi.org/10.1111/jfr3.12118

Bezak, N., Horvat, A., Šraj, M. 2015b: Analysis of flood events in Slovenian streams. Journal of Hydrology and Hydromechanics 63. DOI: https://doi.org/10.1515/johh-2015-0014

Cerveny, R. S., Balling Jr., R. C. 1998: Weekly cycles of air pollutants, precipitation and tropical cyclones in the coastal NW Atlantic region. Nature 394. DOI: https://doi.org/10.1038/29043

DeLisi, M. P., Cope, A. M., Franklin, J. K. 2001: Weekly precipitation cycles along the northeast corridor? Weather and forecasting 16. DOI: https://doi.org/10.1175/1520-0434(2001)016<0343:wpcatn>2.0.co;2

Esterby, S. R. 1996: Review of methods for the detection and estimation of trends with emphasis on water quality applications. Hydrological Processes 10. DOI: https://doi.org/10.1002/(sici)1099-1085(199602)10:2<127::aid-hyp354>3.0.co;2-8

Gong, D., Ho, C., Chen, D., Qian, Y., Choi, Y., Kim, J. 2007: Weekly cycle of aerosol-meteorology interaction over China. Journal of geophysical research 112. DOI: https://doi.org/10.1029/2007jd008888

Gosak, N. 2014: Analiza onesnaženosti zraka z delci v Sloveniji. Magistrsko delo, Fakulteta za strojništvo Univerze v Mariboru. Maribor.

Haan, C. T. 2002: Statistical methods in hydrology. Iowa.

Kendall, M.G. 1975: Multivariate analysis. London.

Khaliq, M. N., Ouarda, T. B. M. J., Gachon, P., Sushama, L., St-Hilaire, A. 2009: Identification of hydrological trends in the presence of serial and cross correlations: A review of selected methods and their application to annual flow regimes of Canadian rivers. Journal of Hydrology 368. DOI: https://doi.org/10.1016/j.jhydrol.2009.01.035

Kundzewicz, Z.W., Robson, A. 2004: Change detection in hydrological records – a review of the methodology. Hydrological Sciences Journal 49-1. DOI: https://doi.org/10.1623/hysj.49.1.7.53993

Maidment, M. 1993: Handbook of Hydrology. New York.

Plečko, J. 2015: Analiza tedenske razporeditve padavin za izbrane padavinske postaje v Sloveniji. Diplomsko delo, Fakulteta za gradbeništvo in geodezijo Univerze v Ljubljani. Ljubljana.

Rao, A. R., Hamed, K. H. 2001: Flood frequency analysis. New York.

Schultz, D., M., Mikkonen, S., Laaksonen, A., Richman, M. B. 2007: Weekly precipitation cycles? Lack of evidence from United States surface stations. Geophysical research letters 34-22. DOI: https://doi.org/10.1029/2007gl031889

Seibert, J., Addor, N., Ewen, T. 2013: Does it really always rain on the weekend? – Weekly precipitation cycles in Switzerland. Geophysical research abstracts 15.

Stjern, C. W. 2011: Weekly cycles in precipitation and other meteorological variables in

a polluted region of Europe. Atmospheric Chemistry and Physics 11. DOI: https://doi.org/10.5194/acp-11-4095-2011

Srebrnič, T. 2005: Časovna razporeditev padavin in pretokov v Sloveniji z analizo sezonskosti. Diplomsko delo, Fakulteta za gradbeništvo in geodezijo Univerze v Ljubljani. Ljubljana.

Turk, G. 2012: Verjetnostni račun in statistika. Ljubljana.