Bulletin of Forestry Science / Volume 7 / Issue 2 / Pages 99-113
previous article | next article

Investigation of the variation of precipitation

Miklós Manninger


Correspondence: Manninger Miklós

Postal address: H-1027 Budapest, Frankel L. u. 1.

e-mail: manningerm[at]erti.hu


The issue of the spatial variation of precipitation can be important in case of using non-locally measured data, while the knowledge about the variation in time is necessary for the interpretation of the predicted changes. At least 100-year-long data series were selected and analysed according to different time window (from monthly over the different water cycle periods to hydrological year). The 30 year reference periods used by climatologists were also taken into account.. From the statistical evaluation the results connected with the variation coefficient (CV) are shown primarily. The author stated that the mean of the shorter periods (1-3 months) is not a good parameter (CV>>30%), while the mean for longer period is more reliable. Generally, the CV of the water cycle periods of the 30-year-reference periods decreases as time goes on. It means that the amount of precipitation hasn’t become more extreme. Even the variation of water cycle periods is so large that ±20% deviation from mean is still in the interquartile range, thus this kind of change in precipitation cannot be named as extreme.

Keywords: precipitation, variation in time and space, variation coefficient (CV), interquartile range

  • Deka R.L., Mahanta C., Pathak H., Nath K. K. & Das S. 2013: Trends and fluctuations of rainfall regime in the Brahmaputra and Barak basins of Assam, India. Theoretical and Applied Climatology 114(1-2): 61–71. DOI: 10.1007/s00704-012-0820-x
  • Dunkel Z., Tiringer Cs. & Zárbok Zs. 1991: Agrometeorológiai állomáshálózat racionális sűrűségének meghatározása, Időjárás 95(5): 226–236.
  • Hajósy F., Kakas J. & Kéri M. 1975: A csapadék havi és évi összegei Magyarországon a mérések kezdetétől 1970-ig. Országos Meteorológiai Szolgálat, Budapest.
  • Huzsvai L. (szerk.) 2011: Statisztika mezőgazdászok részére. SENECA BOOKS, Debrecen.
  • Időjárási havijelentések (1971-2012), OMSZ kiadványok, Budapest.
  • Járó Z. 1989: Az erdő vízforgalma. Az Erdő 33(8): 352–355. full text
  • Machiwal D., Dayal D. & Kumar S. 2017: Long-term rainfall trends and change points in hot and cold arid regions of India, Hydrological Sciences Journal 62(7): 1050–1066. DOI: 10.1080/02626667.2017.1303705
  • Szász G. & Tőkei L. (szerk.) 1997: Meteorológia mezőgazdáknak, kertészeknek, erdészeknek. Mezőgazda Kiadó, 439–443.
  • Vízrajzi évkönyvek (1966-2006), VITUKI kiadványok, Budapest.
  • Webb E.E., Heard K., Natali S. M., Bunn A.G., Alexander H.D., Berner L.T. et al. 2017: Variability in above- and belowground carbon stocks in a Siberian larch watershed. Biogeosciences 14: 4279–4294. DOI: 10.5194/bg-14-4279-2017
  • Open Acces

    For non-commercial purposes, let others distribute and copy the article, and include in a collective work, as long as they cite the author(s) and the journal, and provided they do not alter or modify the article.

    Cite this article as:

    Manninger, M. (2017): Investigation of the variation of precipitation. Bulletin of Forestry Science, 7(2): 99-113. (in Hungarian) DOI: 10.17164/EK.2017.007

    Volume 7, Issue 2
    Pages: 99-113

    DOI: 10.17164/EK.2017.007

    First published:
    24 October 2017

    Related content


    More articles
    by this authors


    Related content in the Bulletin of Forestry Science*

    More articles by this authors in the Bulletin of Forestry Science

    * Automatically generated recommendations based on the occurrence of keywords given by authors in the titles and abstracts of other articles. For more detailed search please use the manual search.