Dynamics of the aerosol pollution of the atmosphere in Georgia in 1956–1990

Amiranashvili, Avtandil G.; Amiranashvili, V.; Tavartkiladze, K. A.

doi:10.1016/s0021-8502(99)80344-9

Cited by 5 publications

(16 citation statements)

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“…Precipitation intensity was measured using meteorological radar "METEOR 735 CDP 10 -Doppler Weather Radar". Radar is established in the village Chotori of the Signagi municipality of Kakheti region of Georgia [35,36]. In this work radar product MPPI (dBz) is used [37][38][39].…”

Section: Study Area Materials and Methodsmentioning

confidence: 99%

Abnormal Precipitation Before the Landslide in Akhaldaba (A Suburb of Tbilisi, Georgia) on June 13, 2015 According to Radar Measurements

Amiranashvili,

Chelidze,

Svanadze

et al. 2023

GGS

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Results of the analysis of radar measurements of precipitation intensity (P) preceding the landslide in the vicinity of Akhaldaba (a suburb of Tbilisi, Georgia) on June 13, 2015 from 21.00 to 23.97 h are presented. In particular, the following results are obtained. Time-series of precipitation intensity under zone with the maximum radar reflectivity of the cloud has the form of a fifth power of polynomial. Time series of areas of precipitation of different intensity under the cloud were obtained and their statistical characteristics were studied. Dependence of the average intensity of precipitation under the cloud on the effective radius from the zone with the maximum radar reflectivity is obtained. Statistical characteristics of precipitation intensity over the center of the landslide top is presented. Sum of precipitation under zone with the maximum radar reflectivity of the cloud and over the center of the landslide top on 13 June 2015 from 21.00 to 23.97 h and before landslide from 21.00 to 22.45 h is assessed.

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Section: Study Area Materials and Methodsmentioning

confidence: 99%

Abnormal Precipitation Before the Landslide in Akhaldaba (A Suburb of Tbilisi, Georgia) on June 13, 2015 According to Radar Measurements

Amiranashvili,

Chelidze,

Svanadze

et al. 2023

GGS

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“…Simple thermal indices include more than one meteorological parameter and consider the combined action of the air temperature, humidity, wind speed and etc. on the human organism [31][32][33][34]. For example, to determine the monthly mean values of TCI following data are necessary: mean and maximum mean air temperature, mean and mean minimum relative humidity, precipitation, sunshine duration and wind speed.…”

Section: Chaptermentioning

confidence: 99%

Weather, Climate and Their Change Regularities for the Conditions of Georgia

Kartvelishvili¹,

Tatishvili²,

Amiranashvili³

et al. 2023

Monographs

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Publishing House "UNIVERSAL"Tbilisi 2023 4In the monograph "Weather, climate and their change regularities for the conditions of Georgia" the natural factors causing the formation and variability of weather, as well as one of the important problems of modernity, climate change and causing reasons are studied in the complex manner using modern technologies. The data of the ground based hydrometeorological network and satellite observations of the Earth Observation Mission are used. The impact of climate change on the number of sectors of the country's economy (construction industry, tourism, healthcare, education and others) has been evaluated. The monograph has both scientific and practical value. The monograph is intended for specialists working in this field and the wide society. It can be used as the supplementary handbook for students of the Faculty of Natural Sciences of higher education institutions. EditorsZurab Khvedelidze -Dr. of Phys.-Math. Scie. Professor Ramaz Chitanava -Doctor of Geography Permanent representative of the World Meteorological Organization in Georgia Reviewers Revaz Shanidze -Dr. of Phys.-Math. Scie. Professor Nino Kezevadze -Doctor of Geography The monograph was published with the financial support of Shota Rustaveli Science Foundation Grant №SP-22-1253

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“…It should be noted that crystallization reagents (AgI, PbI2, NaCl) were used in almost all studies, and the positive effects of the Alazani anti-hail system varied between 20-95% with an average value of 75-85% [10]. In the Soviet period, along with anti-hail operations, other works were carried out in Georgia, such as artificial precipitation, and the regulation of thunderstorm activity of clouds, using rocket, aviation, artillery and other devices and methods [11,13]. In 1989, work against hail were discontinued, and as a result, in subsequent years, damage to the national economy increased significantly [10][11][12][13].…”

Section: Anti-hail Service In Eastern Georgia (Kakheti)mentioning

confidence: 99%

“…In the Soviet period, along with anti-hail operations, other works were carried out in Georgia, such as artificial precipitation, and the regulation of thunderstorm activity of clouds, using rocket, aviation, artillery and other devices and methods [11,13]. In 1989, work against hail were discontinued, and as a result, in subsequent years, damage to the national economy increased significantly [10][11][12][13]. It was revealed that the areas beaten by the hail in Kakheti increased over the years after the reduction of anti-hail operations and even became larger than before the start of the anti-hail service [14,15].…”

Section: Anti-hail Service In Eastern Georgia (Kakheti)mentioning

confidence: 99%

Using modern technology to protect vineyards from hail amid climate change

et al. 2021

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Over the past two decades, Georgia has faced increasingly heavy rainfall, hail and flooding, which especially devastated Kakheti wine region in Southern Georgia, causing severe damage to hundreds of vineyards. Since 2015, 85 anti-hail missile systems have been installed to protect entire Kakheti region, however, for the effective use of a modern anti-hail system, it became necessary to timely forecast extreme weather events of a regional and local scale. Thus, this article aims to develop timely forecasting of strong convection, dangerous precipitation and hail using modern weather forecasting models and radar technologies in Georgia. For this reasons various combinations of the physics parameterization schemes of the WRF-ARW model, the ARL READY system and the data of the modern meteorological radar Meteor 735CDP10 are used to predict the thermodynamic state of the atmosphere and assess the possible level of development of convective processes. The analysis of the calculated results showed that the variants of the microphysics parametrization schemes of the WRF model lead to significant variability in precipitation forecasts on complex terrain. Meanwhile, the upper-air diagrams of the READY system clearly showed the instability of the atmosphere for the cases discussed. Some results of these calculations are presented and analysed in this paper.

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Dynamics of the aerosol pollution of the atmosphere in Georgia in 1956–1990

Cited by 5 publications

References 0 publications

Abnormal Precipitation Before the Landslide in Akhaldaba (A Suburb of Tbilisi, Georgia) on June 13, 2015 According to Radar Measurements

Abnormal Precipitation Before the Landslide in Akhaldaba (A Suburb of Tbilisi, Georgia) on June 13, 2015 According to Radar Measurements

Weather, Climate and Their Change Regularities for the Conditions of Georgia

Using modern technology to protect vineyards from hail amid climate change

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