Influence of inhomogeneity of temperature time series on the estimation of regional climate changes

1Osadchyi, VI, 2Skrynyk, OA, 1Skrynyk, OYa.
1Ukrainian Hydrometeorological Institute under the State Emergency Service of Ukraine and the NAS of Ukraine, Kyiv
2National University of Life and Environmental Sciences of Ukraine, Kyiv
Dopov. Nac. akad. nauk Ukr. 2017, 7:43-50
Section: Geosciences
Language: Ukrainian

Based on a trend analysis of raw and homogenized temperature data, the influence of inhomogeneities of time series on the assessment of temperature changes in Ukraine has been studied. The raw monthly mean temperature data collected at 178 stations during the period 1946—2010 and respective homogenized data, which had been obtained in the Ukrainian Hydrometeorological Institute, have been used for the analysis. The analysis has revealed the substantial influence of “station signals” on the assessment of regional climate changes.

Keywords: air temperature, climate change, HOMER, Homogenization, inhomogeneity, time series
  1. Trewin, B. (2010). Exposure, instrumentation, and observing practice effects on land temperature measurements. WIREs Clim. Change, 1, Iss. 4, pp. 490-506. doi:
  2. Kobysheva, N. V. & Narovlyansky, G. Y. (1978). Climatological processing of meteorological information. Lenin grad: Gidrometeoizdat (in Russian).
  3. Aguilar, E., Auer, I., Brunet, M., Peterson, T.C. & Wieringa, J. (2003). Guidelines on climate metadata and homogenization. WMO/TD No. 1186. WCDMP No. 53. Geneva: World Meteorological Organization.
  4. Menne, M. J., Williams, C. N. Jr. & Vose, R. S. (2009). The U.S. historical climatology network monthly temperature data, version 2. Bull. Am. Meteorol. Soc. 90, No. 7, pp. 993-1007. doi:
  5. Babichenko, V. N., Rudyshina, S. F., Bondarenko, Z. S. & Gushchyna, L. M. (1987). Air temperature in Ukraine. Leningrad: Gidrometeoizdat (in Russian).
  6. Voloshchuk, V. M., Boychenko, S. G., Stepanenko, S. M., Shyshchenko, G. P. & Bortnyk, S. Y. (2002). Global warming and climate of Ukraine, regional, ecological and socio-ecological aspects. Kyiv: VPC "Kyiv University" (in Ukrainian).
  7. Lipinsky, V. M., Dyachuk, V. A. & Babichenko, V. M. (Eds.). (2003). Climate of Ukraine. Kyiv: Vyd-vo Ra evskogo (in Ukrainian).
  8. Babichenko, V. M., Nikolaeva, N. V. & Gushchyna, L. M. (2007). Changes in air temperature in Ukraine in the late XX and early XXI century. Ukr. geogr. j., No. 4, pp. 3-12 (in Ukrainian).
  9. Osadchy, V. I. & Babichenko, V. M. (2013). The air temperature on the territory of Ukraine in today's climate conditions. Ukr. geogr. j., No. 4, pp. 32-39 (in Ukrainian). doi:
  10. Osadchy, V., Nabyvanets, Y., Skrynyk, O., Krakovska, S. & Skrynyk, O. (2011). Homogenization of long monthly air temperature time series collected in Ukraine. Seventh Seminar for Homogenization and Quality Control in Climatological Databases jointly organized with the Meeting of COST ES0601 (HOME) Action MC Meeting. WCDMP-No. 78 (pp. 92-98). Budapest, Hungary.
  11. Skrynyk, O., Savchenko, V., Radchenko, R. & Skrynyk, O. (2014). Homogenization of monthly air temperature and monthly precipitation sum data sets collected in Ukraine. Eighth Seminar for Homogenization and Quality Control in Climatological Databases and Third Conference on Spatial Interpolation Techniques in Climatology and Meteorology. WCDMP-No. 84 (pp. 128-133). Budapest, Hungary.
  12. Skrynyk, O. A., Osadchyi, V. I., Radchenko, R. Y. & Skrynyk, O. Y. (2017). Homogenized dataset of monthly mean air temperature. Nauk. pratsi UkrNDHMI, Iss. 271, pp. 3-18 (in Ukrainian).
  13. COST — ES0601: Advances in homogenization methods of climate series: an integrated approach (HOME). Retrieved from