Variability of Atmospheric Circulation and Geomagnetic Field in the Northern Hemisphere

Martazinova, V. F.; Bakhmutov, V.; Melnyk, Galina

doi:10.1002/essoar.10501262.1

Cited by 3 publications

(3 citation statements)

References 4 publications

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“…Це питання висвітлено у низці робіт В.Ф. Мартазинової [22][23][24]. Було доведено зміни у великомасштабному перетворенні атмосферній циркуляції над Атлантико-Європейським сектором, яка в свою чергу впливає на циркуляцію повітря над Україною, а саме розташуванні центрів дії атмосфери (ЦДА) протягом різних часових інтервалів.…”

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Adverse Agrometeorological Phenomena on the Territory of Ukraine During 2006-2020

Pyasetska¹

2022

HHH

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The article is devoted to the study of weather conditions of adverse agrometeorological phenomena (droughts) on the territory of Ukraine during the fifteen-year period of 2006-2020. The purpose of the work is to establish the peculiarities of the temperature and humidity regime in the months of the warm period of the year during certain years of the last fifteen-year period, taking into account the droughts that were observed in this period. For each year and month of the studied period, an analysis of the relevant weather conditions accompanying droughts in the territory of Ukraine was carried out. The influence of temperature conditions and features of humidification on the territorial distribution and duration of droughts has been proven. In general, during the studied period, it was established that drought phenomena were not observed only in 2012, 2016, 2018 and 2019. Droughts could start in the air or in the soil and eventually develop into air-soil droughts. In 10 years of the studied period, severe air and soil droughts were observed in large areas. Mostly droughts were observed from the end of June to the end of July, but in some years droughts could start from April and be observed with certain breaks until the beginning (mid) of autumn. In 2011, there was a case of air drought at the end of February and in March. In addition, in some years, air-soil droughts could be observed in autumn not only from its beginning, but also until its end (November 2011, 2015). For the most part, territorial droughts during 2006-2020 were observed in the east, southeast, and south, but they could also be observed in most of the country, including part of the northern territories. In some years, droughts were accompanied by droughts and dust storms. It was established that in the months of the warm period of the year, the average monthly air temperature was mostly above the norm by 1-2º C, while in some months and years the norm could be significantly exceeded, especially in the summer months from 4 to 7º. In autumn, for the most part, the average monthly air temperature was within normal limits, but in some years it was 1-3º degrees above normal. Precipitation during the studied months was extremely unevenly distributed across the territory of Ukraine. In the spring, precipitation was mostly close to normal. In the summer months, precipitation was often insufficient, sometimes less than half of the norm. In autumn, the amount of precipitation increased mostly to the norm and above, but in some years a deficit of precipitation was observed in most of the territory of Ukraine. At the end of autumn, mostly precipitation fell close to norm, and in some places even more than normal.

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Adverse Agrometeorological Phenomena on the Territory of Ukraine During 2006-2020

Pyasetska¹

2022

HHH

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“…Пошкодження та загибель рослин відбувається внаслідок суттєвого неузгодження потреби вологи за підвищеної інсоляції та термічного режиму. Результатам дослідження посух на території країни присвячено низку робіт, що оцінюють ступінь посушливості окремих періодів вегетації за умов їх впливу на стан сільськогосподарських рослин, причини виникнення та зміни метеорологічних величин відносно середніх значень [1][2][3][4][5][6][7][8].…”

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“…Аналіз виконаних досліджень. Результатам дослідження посух на території країни присвячено низку робіт, що оцінюють ступінь і вплив посушливості окремих періодів вегетації на стан сільськогосподарських рослин, причини виникнення посух та зміни метеорологічних величин відносно середніх значень при них [2][3][4][5][6][7][8][9].…”

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Components of the Radiation Regime of Solar Radiation During Droughts for 1991-2020 in Ukraine

Rybchenko,

KyivSavchuk

2023

HHH

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Changes in the components of the radiation regime of solar radiation during periods of intense droughts and their comparison with average values for 1991-2020 in Ukraine are given. Drought is a complex and dangerous natural phenomenon caused by the anticyclonic nature of the atmospheric circulation, the long-term transformation of slow-moving air masses over large areas. A complex of dynamic processes leads to its development. They are facilitated by an increased supply of short-wave radiation, high air temperature, a rainless period, and a lack of moisture in the air and soil. The archive of measurements of the meteorological and actinometric network of observations of the Borys Sreznevskiy CGO of the SES of Ukraine was used. A database of observations of individual components of the radiation regime of solar radiation and a catalog of droughts has been created. Droughts of different intensity and duration during the growing seasons for 1991-2020 were determined. The change in atmospheric circulation led to an increase in clear and cloudless weather, changes in the arrival of components of the radiation regime of solar radiation to the substratum. The biggest changes were in the warm period. In 1991-2020, relative to 1961-1990, the duration of sunshine, direct and total solar radiation increased during the year, and diffuse radiation decreased. During 1991-2020, droughts were observed for 22 years, including 17 growing seasons throughout the territory. They differed in types (air, air-ground, ground), duration, distribution. Prerequisites for the development of droughts were observed in some cold periods. In particular, droughts. observed in November, February-March. In the warm period, intense droughts were observed for short periods of time (less than a month) in some areas and powerful, long-lasting ones in the prevailing area. In certain months of the growing season during droughts, significant deviations of individual components of solar radiation compared to the average for 1991-2020 were observed throughout the country. Usually, during dry periods, the duration of sunshine and direct solar radiation increased significantly, diffuse radiation decreased, so the total radiation did not always increase. An increase in individual components of the radiation regime led to an increase in the total radiation balance and albedo of the underlying surface. The research is part of the monitoring of climate anomalies. They are necessary for solving applied problems of adapting agricultural production to permanent and long-term droughts in a large area.

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Features of the Current State of the Temperature-Humidity Regime of Ukraine Since the Beginning of the Xxi Century Under the Influence of Changes of Large-Scale Atmospheric Circulation

Martazinova,

Horodetska,

Rybchenko

et al. 2022

MHE

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The current state of the temperature and humidity regime of the territory of Ukraine from 1991 to the present time under the influence of changes in large-scale atmospheric circulation is considered. The atmospheric circulation model by V. Martazinova and the EOF decomposition of pressure fields, the beginning of the formation of the modern climate regime since 2006 was determined. For the analysis of the modern temperature-humidity regime, the data of the fields of air temperature, atmospheric precipitation, pressure, geopotential in the nodes of the geographic grid of the Atlantic-European sector of the archive of UkrGMI-СDDPP; NOAA Northern Hemisphere Archive; air temperature, precipitation, direct solar radiation of Ukrainian stations since 1991 were used. It is established that the temperature since the beginning of our century on the territory of Ukraine is growing, dry processes with deficit of precipitation are observed in April, August and September. The increase of the drought processes affects the current state of direct solar radiation, which for the warm period of the last 15 years exceeds the norm of previous years almost in all territory of Ukraine, especially in the northern and central regions.

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Variability of Atmospheric Circulation and Geomagnetic Field in the Northern Hemisphere

Cited by 3 publications

References 4 publications

Adverse Agrometeorological Phenomena on the Territory of Ukraine During 2006-2020

Adverse Agrometeorological Phenomena on the Territory of Ukraine During 2006-2020

Components of the Radiation Regime of Solar Radiation During Droughts for 1991-2020 in Ukraine

Features of the Current State of the Temperature-Humidity Regime of Ukraine Since the Beginning of the Xxi Century Under the Influence of Changes of Large-Scale Atmospheric Circulation

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