Open AccessSpatial and temporal trends of atmospheric humidification in the steppe part of the Trans-Volga-Ural region
Author(s) -
V. M. Pavleychik,
E. R. Yazykbaev
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/817/1/012083
Subject(s) - precipitation , steppe , environmental science , climatology , atmospheric sciences , period (music) , siberian high , levelling , physical geography , geography , meteorology , geology , physics , cartography , archaeology , east asia , acoustics , china
The results of the regional climate change research on the example of the Volga-Ural steppe region are presented. Spatial and temporal patterns in the long-term (1960-2020) dynamics of atmospheric humidification are analyzed. It was revealed that the long phase with increased precipitation, which lasted in the region from about 1980 to 2010, was replaced everywhere by a clearly represented dry phase, especially in the Southern Urals and the Trans-Urals. There is also an intra-annual redistribution of precipitation for all weather stations (an increase in the share of the cold period precipitation and a decrease in the warm period rainfall), which leads to the levelling of humidification conditions. Speaking about the calendar months, the transformation of atmospheric humidification for separate periods of 1960-2020 at weather stations is quite multidirectional. The transformation of atmospheric humidification conditions occurs at the background of significant changes in the temperature regime: there is an increase in average annual indicators everywhere (on average by 1°C over 40 years) and average monthly temperatures in the first half of the year (from January to May). It is stated that against the air temperature background, changes in the humidification parameters can lead to the necessity of adapting various types of steppe environmental management to changing weather and climatic conditions.