4 research outputs found
Диагностирование аномалий температуры атмосферы в сейсмически активных регионах Азии по спутниковым данным
Results of diagnosis of temperature anomalies based on retrospective analysis of long-term timeseries
of temperature in separation zone of troposphere and stratosphere over epicenters of 10
strong earthquakes with magnitude of M>6.5 that occurred in different seismically active regions
of Asia are presented. Anomalous temperature perturbations were observed in all the studied
cases 1-8 days before the main seismic eventПредставлены результаты диагностирования аномалий температуры, основанные на
ретроспективном анализе долговременных спутниковых данных в зоне раздела тропосферы и
стратосферы над эпицентрами 10 сильных землетрясений магнитудой M>6,5, произошедших
в различных сейсмически активных регионах Азии. Аномальные возмущения температуры
наблюдались во всех рассмотренных случаях за 1−8 дней до основного сейсмического
событи
Atmospheric Temperature Anomalies During Seismic Activity
Представлены результаты, полученные с использованием разработанной методики
диагностирования аномалий температуры и основанные на ретроспективном анализе
процессов трансформации профилей температуры в зоне раздела тропосферы и стратосферы
над эпицентрами землетрясений энергетического класса K>13.0, произошедших в Северном и
Центральном Тянь-Шане с 2003 по 2015 г. Аномальные возмущения температуры наблюдались
примерно в 70 % случаев за 1-5 дней до основного сейсмического событияPresented results were obtained by means of methods of temperature anomalies diagnosing and on
the basis of retrospective analysis of temperature profiles transformation in border of troposphere
and stratosphere over epicenters of earthquakes with energy class of K>13.0, occurred in Northern
and Central Tien-Shan during 2003-2015. Abnormal temperature perturbations observed in about
70% of cases in 1–5 days before the main seismic even
Atmospheric Temperature Anomalies During Seismic Activity
Представлены результаты, полученные с использованием разработанной методики
диагностирования аномалий температуры и основанные на ретроспективном анализе
процессов трансформации профилей температуры в зоне раздела тропосферы и стратосферы
над эпицентрами землетрясений энергетического класса K>13.0, произошедших в Северном и
Центральном Тянь-Шане с 2003 по 2015 г. Аномальные возмущения температуры наблюдались
примерно в 70 % случаев за 1-5 дней до основного сейсмического событияPresented results were obtained by means of methods of temperature anomalies diagnosing and on
the basis of retrospective analysis of temperature profiles transformation in border of troposphere
and stratosphere over epicenters of earthquakes with energy class of K>13.0, occurred in Northern
and Central Tien-Shan during 2003-2015. Abnormal temperature perturbations observed in about
70% of cases in 1–5 days before the main seismic even
Lidar Measurements of the Vertical Distribution of Aerosol Optical and Physical Properties over Central Asia
The vertical structure of aerosol optical and physical properties was measured by Lidar in Eastern Kyrgyzstan, Central Asia, from June 2008 to May 2009. Lidar measurements were supplemented with surface-based measurements of PM2.5 and PM10 mass and chemical composition in both size fractions. Dust transported into the region is common, being detected 33% of the time. The maximum frequency occurred in the spring of 2009. Dust transported to Central Asia comes from regional sources, for example, Taklimakan desert and Aral Sea basin, and from long-range transport, for example, deserts of Arabia, Northeast Africa, Iran, and Pakistan. Regional sources are characterized by pollution transport with maximum values of coarse particles within the planetary boundary layer, aerosol optical thickness, extinction coefficient, integral coefficient of aerosol backscatter, and minimum values of the Ångström exponent. Pollution associated with air masses transported over long distances has different characteristics during autumn, winter, and spring. During winter, dust emissions were low resulting in high values of the Ångström exponent (about 0.51) and the fine particle mass fraction (64%). Dust storms were more frequent during spring with an increase in coarse dust particles in comparison to winter. The aerosol vertical profiles can be used to lower uncertainty in estimating radiative forcing