Spatiotemporal distribution and meteorological characteriatics of hot dry winds in Ukraine at the end of XX ‒ beginning of XXI century

Authors: Slizhe M. O., Semenova I. G.

Year: 2017

Issue: 22

Pages: 21-29

Abstract

The hot dry winds in Ukraine are dangerous phenomenon, which can significantly impact to crop yields. This winds damages of crops, which active development occurs in the spring and summer time. Their impacts during the short time can reduce or destroy the future harvest.

The modern research of spatial and temporal distribution of the hot dry winds and its meteorological characteristics on the territory of Ukraine in the current changed climate is an actual problem, because this phenomenon occurs almost every growing season.

In the paper describes the features of spatiotemporal distribution of the hot dry winds over Ukraine from April to August for the period of 1995-2015. The results of the analysis of interannual variability and seasonal frequency of the dry hot wind with different duration are presented for the stations, located in different agro-climatic zones of Ukraine. The average monthly, medium-term values of temperature, relative humidity, wind speed during dry wind were analyzed.

The average monthly, medium-term values of temperature, relative humidity, and wind speed under dry wind were analyzed. The values for maximum temperature, minimum relative air humidity and maximum of hot dry winds speed at stations were selected. The average temperature during the formation of hot dry winds matter most in Steppe zone, with its maximum value in individual locations reached 40 °C.

The average relative humidity during the hot dry winds varies little during the growing season, the lowest values were recorded in spring in Polesie and forest-Steppe zone and in summer in Steppe zone.

In all agro-climatic zones of greatest average speed of hot dry winds is observed in April. The maximum speed of hot dry wind in some stations reached 18 m/s.

Also there were analyzed the directions of the hot dry winds. The hot dry winds directions is vary considerably in agro-climatic zones and months, but prevailing directions is identify directions of southern and eastern quadrant, corresponding to the southern and western periphery of anticyclones.

Tags: hot dry winds; temperature and humidity regime; wind regime; режим вітру; режим вітру; суховій; суховій; суховійний період; суховійний період; температурно-вологісний режим; температурно-вологісний режим

Bibliography

  1. Lipіns’kyy V. M., Dyachuk V. A., Babichenko V. M. (Eds.) Klimat Ukrayiny [Climate of Ukraine]. Kyyiv: Rayevs’kyy Publ., 2003. 343 p.
  2. Semenova I. G. An estimation of spatial and temporal distribution of drought in Ukraine during the vegetation period. Trudy GGO im. A. I. Voeykova – Proceedings of Voeikov Main Geophisical Observatory, 2014, no. 571, pp. 135-147. (In Russian)
  3. Buchinskii I. E. Zasukhi i sukhovei [Droughts and hot dry winds]. Leningrad: Gidrometeoizdat, 1976. 214 p.
  4. Buchinskii I. E. Zasukhi, sukhovei i pyl’nye buri na Ukraine i bor’ba s nimi [Droughts, hot dry winds and dust storms in Ukraine and the fight against them]. Kiev: Harvest, 1970. 236 p.
  5. Dzerdzeevskiy B. L. Predvaritel’nye dannye tsirkulyatsii atmosfery v dni s sukhoveyami v Prikaspii. Mikroklimaticheskie i klimaticheskie issledovaniya v Prikaspiyskoy nizmennosti [Preliminary data of the circulation of the atmosphere on days with hot dry winds in the Caspian region. Microclimatic and climatic studies in the Caspian Lowland]. Мoscow: Publ. AS USSR, 1953. рр. 18-29.
  6. Martazinova V. F., Sologub T. A. Atmospheric circulation, which forms arid conditions on the territory of Ukraine at the end of the 20 thcentury. Nauk. pratsi UkrNDHMI – Scientific Proc. UkrSRGMI, 2000, no. 248, рр. 36-47. (In Russian)
  7. Martazinova V. F., Sverdlik T. A. Largescale atmospheric circulation of the 20th century, its change and its present state. Nauk. pratsi UkrNDHMI – Scientific Proc. UkrSRGMI, 1998, no. 246, рр. 21-27. (In Russian)
  8. Semenova I. G. The role of blocking processes in the formation of droughts in Ukraine. Trudy GGO im. A. I. Voeykova – Proceedings of Voeikov Main Geophisical Observatory, no. 569, pp. 124-136. (In Russian)
  9. Cherenkova E. A., Semenova I. G., Kononova N. K., Titko-va T. B. Droughts and dynamics of synoptic processes in the south of the East European Plain at the beginning of the twenty-first century. Arid Ecosystems, 2015, vol. 5, issue 2, pp. 45-56.
  10. Elektronna baza klimatychnykh danykh [Electronic climate database]. URL:https://www7.ncdc.noaa.gov/CDO/cdo (ac-cessed 10 August 2016)
  11. Semenova I. Basis of droughts catalog for Ukraine in modern period. Abstract book – The International Conference on Regional Climate-CORDEX 2016 (ICRC-CORDEX), 17-20 May 2016, Stockholm, Sweeden. P. 292. URL:http://www.icrc-cordex2016.org.
  12. Shevchenko O. H. Characteristics of the warm wave of the summer season 2010 in the territory of Ukraine. Nauk. pratsi UkrNDHMI – Scientific Proc. UkrSRGMI, 2012, no.262, рр. 31-35. (In Ukrainian)
  13. Balabukh V. O., Malyts’ka L. V., Lavrynenko M. O. Features of the weather conditions of 2014 in Ukraine. Nauk. pratsi UkrNDHMI – Scientific Proc. UkrSRGMI, 2015, no.267. рр. 28-38. (In Ukrainian)
  14. Tatarchuk O. H., Barabash M. B. Atmospheric circulation, which forms aridconditions on the territory of Ukraine at the end of the 20th century. Nauk. pratsi UkrNDHMI – Scientific Proc. UkrSRGMI, 2007, no.256, рр. 140-154. (In Ukrainian)
Download full text (PDF)