Assessment of Climate Favorability for the Grain Cultivation Based onthe Frequency of Severe Droughts
Journal: Russian Meteorology and Hydrology
Year: 2020

Using climate monitoring data from 96 Russian weather stations, the years of severe droughts are identified. For this purpose, the following criterion was used: a value of the Selyaninov hydrothermal coefficient for May–August is less than 0.6. Climate of a time period, i.e., a set of consecutive years, is considered unfavorable for the cultivation of grain crops if the frequency of severe droughts p (the Bernoulli distribution parameter) exceeds 0.5. This parameter is estimated from data of the