Precipitation Statistics in Ukraine: Sensitivity to Informational Sources

  • Sergiy Ivanov
  • Julia Palamarchuk
  • Denis Pyshniak
Conference paper
Part of the NATO Science for Peace and Security Series C: Environmental Security book series (NAPSC)

Sensitivity of precipitation estimates to a choice of database and sampling in observations as well as of a parameterization scheme in a model is discussed. Comparison is performed for time series and spatial patterns. Mean annual and seasonal differences between two databases for the period of 1965–1995 years is about 2–4 and 4–7 mm correspondingly. Discrepancy in spatial patterns of precipitation is mostly applied for the Carpathian region, where it achieves the value of about 7 mm. Estimates of a trend in precipitation vary depending on a sampling period and may even change the sign. This suggests that a term like the long-term variability is preferable instead of the trend. Model simulations show that different parameterization schemes provide similar large scale patterns and values of cloud and rain content, but are considerably different in meso scale structures for orders of 100 km and less.


precipitation trend variability sampling parameterization 


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© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Sergiy Ivanov
    • Julia Palamarchuk
      • Denis Pyshniak

        There are no affiliations available

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