Академическое издательство «Гео»

Air temperature, precipitation, snow storage, frequency of anomaly events, values of the anomalies, spatial and temporal variability



KRIOSFERA ZEMLI, 2018, Vol. XXII, № 2, p. 81-90

The contribution of anomalous values of meteorological characteristics to winter climate variability in Northern Eurasia

L.M. Kitaev

Institute of Geography, RAS, 29, Staromonetniy per., 109017, Moscow, Russia; lkitaev@mail.ru

The spatial and temporal changes in the air temperature, precipitation and snow cover have been quantitatively illustrated for the main regions of northern Eurasia for the period of 1966–2011. Steady warming is registered widely, regional variability of precipitation and snow cover have low trend values – with the exception of the territory of the Russian Far East. Values of regional anomalies of the characteristics under study have been calculated and categorized. The contribution of the cumulative values of anomalies to the total variability of the amount of sample values has been defined for all the characteristics. As a result, statistical distribution of the property values and the type of long-term trends have been refined, particularly for cases with not significant coefficients of the linear trend. The largest contribution of the total values of air temperature anomalies has been observed for Western and Eastern Siberia, and the largest contribution of cumulative values of anomalies for precipitation and snow cover has been obtained for the region of Eastern Siberia and the Russian Far East.

Air temperature, precipitation, snow storage, frequency of anomaly events, values of the anomalies, spatial and temporal variability

DOI: 10.21782/KZ1560-7496-2018-2(81-90)

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