ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa
CURRENT PROBLEMS IN REMOTE SENSING OF THE EARTH FROM SPACE

  

Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2017, Vol. 14, No. 5, pp. 223-238

Short-period variability in snow cover duration in the north of Eurasia in modern climate conditions from MODIS data

T.B. Titkova 1 , L.M. Kitaev 1 , V.V. Vinogradova 1 
1 Institute of Geography RAS, Moscow, Russia
Accepted: 25.05.2017
DOI: 10.21046/2070-7401-2017-14-5-223-238
Short-period fluctuations of snow cover duration in the north of Eurasia in the early 21st century were estimated from satellite data depending on changes in surface air temperature and precipitation. On the East European Plain, Western Siberia and the Far East, constant snow cover is formed before the establishment of negative surface air temperatures due to precipitation sufficient for the formation of snow cover. In the cold conditions of Central Siberia with less rain, the constant snow cover forms after the establishment of negative air temperatures. In spring, the constant snow cover is destroyed everywhere after the transition of the surface air temperature through zero. The greatest statistically significant contribution to the interannual variability of constant snow cover period and dates of its destruction are precipitation of the cold period and, to a lesser extent, the date of temperature transition through zero in spring. Through the decomposition of characteristics by the Fourier method, periods were identified in the variability of the timing of snow accumulation: 2000–2004, 2005–2009, 2010–2014. The first and the last periods are characterized by later terms of formation and destruction of constant snow cover in comparison with 2005–2009.
Keywords: constant snow cover, negative air temperatures, precipitation of the cold period
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