Droughts and dynamics of synoptic processes in the south of the East European Plain at the beginning of the twenty-first century

被引：11
作者：
Cherenkova E.A. [1 ]
Semenova I.G. [2 ]
Kononova N.K. [1 ]
Titkova T.B. [1 ]
机构：
[1] Institute of Geography, Russian Academy of Sciences, per. Staromonetnyi 29, Moscow
[2] Odessa State Environmental University, ul. L’vovskaya 15, Odessa
来源：
Arid Ecosystems | 2015年 / 5卷 / 2期
基金：
俄罗斯基础研究基金会;
关键词：
atmospheric circulation of the northern hemisphere; blocking index; drought; normalized differential vegetation index (NDVI); Palmer Drought Severity Index;
D O I：
10.1134/S2079096115020055
中图分类号：
学科分类号：
摘要：
The regional features of the spatial distribution of extensive severe atmospheric droughts during the vegetation season in the south of the East European Plain at the beginning of the 21st century were studied according to the data on the Palmer Drought Severity Index. The circulation conditions for the formation of droughts were analyzed, and the characteristics and some regularities of blocking episodes were revealed. It was shown that the boundaries of severe droughts are in good agreement with the domains of negative extremes of the satellite vegetation index, which are observed in July and August. © 2015, Pleiades Publishing, Ltd.
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页码：45 / 56
页数：11
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