Methane content in the mid-upper troposphere of Western Siberia in 2003-2015: results of the AIRS/AMSU-Aqua

2016 ◽  
Author(s):  
Egor Yu. Mordvin ◽  
Anatoly A. Lagutin ◽  
Konstantin M. Makushev
Author(s):  
А.А. Черемисин ◽  
В.Н. Маричев ◽  
П.В. Новиков ◽  
Д.А. Бочковский

В течение десятилетнего периода с 2008 по 2019 год проводились лидарные наблюдения стратосферного аэрозоля в Томске на станции высотного зондирования ИОА СО РАН. За этот период удалось зарегистрировать слои вулканического аэрозоля, возникшего в результате извержения целого ряда вулканов. Метод лагранжевых траекторий движения воздушных масс в атмосфере, построенных по данным спутниковых измерений скорости ветра в Северном полушарии, позволил связать между собой данные лидарных наземных наблюдений верхней тропосферы и стратосферы в Томске и Владивостоке, данные космического лидара CALIOP и спутниковую информация c прибора GOME-2 о распределении диоксида серы в атмосфере Северного полушария. В данной работе это показано на примере извержения вулканов Касаточи и Набро. During the ten-year period from 2008 to 2019 lidar observations of the stratospheric aerosol in Tomsk were carried out at the high-altitude sounding station of the IOA SB RAS. During this period, it was possible to register layers of volcanic aerosol resulting from the eruption of a number of volcanoes. The method of Lagrangian trajectories of air mass movement in the atmosphere based on satellite measurements of wind speed in the Northern Hemisphere made it possible to relate data from lidar ground-based observations of the upper troposphere and stratosphere in Tomsk and Vladivostok, CALIOP space lidar data and satellite information from the GOME-2 instrument distribution of sulfur dioxide in the atmosphere of the Northern Hemisphere. In this work, this is shown by the example of the eruption of the Kasatochi and Nabro volcanoes.


Atmosphere ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 196 ◽  
Author(s):  
Sergey Dolgii ◽  
Alexey A. Nevzorov ◽  
Alexey V. Nevzorov ◽  
Yurii Gridnev ◽  
Olga Kharchenko

The purpose of this work is to measure the ozone vertical distribution (OVD) in the upper troposphere–stratosphere by differential absorption lidar (DIAL) at 299/341 nm and 308/353 nm and to compare and analyze the results against satellite data. А lidar complex for measuring the OVD in the altitude range ≈(5–45) km has been created. Here we analyze the results of ozone lidar measurements at wavelengths of 299/341 nm and 308/353 nm in 2018 at Siberian Lidar Station (SLS) and compare them with satellite (MLS/Aura and IASI/MetOp) measurements of OVD. The retrieved lidar OVD profiles in the upper troposphere–stratosphere in comparison with MLS/Aura and IASI/MetOp profiles, as well as the stitched OVD profile in comparison with the mid-latitude Krueger model, confirm the prospects of using the pairs of ozone sounding wavelengths 299/341 and 308/353 nm.


2021 ◽  
Author(s):  
E.Yu. Mordvin ◽  
A.A. Lagutin ◽  
N.V. Volkov

The paper considers the behavior of total methane content in the atmosphere of Western Siberia obtained using the global chemical transport model MOZART-4 (Model for OZone And Related chemical Tracers, version 4). We discuss details of the model configuration for simulation of methane content until the end of the XXI century within the Representative Concentration Pathways (RCP4.5 and RCP8.5). Boundary conditions at the lower levels of the model (methane content in the surface air layer) was obtained using data from the Earth System Research Laboratories (ESRL) project and the results of the Atmospheric Chemistry-Transport Models (ACTM) for 2007–2010. The methane content in the stratosphere was also defining according to the ACTM results. The climate data used in MOZART-4 is based on the results of the Goddard Earth Observing System, Version 5 (GEOS-5). The modification of the boundary conditions carried out in the work made it possible to reproduce the summer and winter maximum in the annual course of CH4. These results are confirmed by satellite and aircraft observations made on the territory of Western Siberia. It was found that the total methane content in the atmosphere of the studied region (45–65 N, 60–90 E) in 2000–2020 increased with a trend of about 3.5 ± 0.2 ppb/year. In 2000–2006, there is virtually no trend. The increase of CH4 in 2007–2020 has a trend of ∼ 5.0 ± 0.2 ppb/year. The global data obtained as a result of the simulation can be used as initial and boundary conditions of the chemical version of the regional climate model RegCM-CHEM4.


Author(s):  
R. R. Gabdullin ◽  
O. N. Biryukova ◽  
R. A. Akhmedov

The analysis of geological and geophysical materials in order to study the peculiarities of the geological structure of the Vikulov Formation within the Vodorazdel license area was carried out. The presented factual material makes it possible to characterize the geological structure of the investigated area more informatively and for interpreting of seismic materials. The analysis of geological information (GIS and test results) confirms the approved water–oil contact (WOC) level in the investigated section of the deposit, which makes it possible to recalculate its reserves.


Author(s):  
Lev V. Razumovsky

On the basis of author's graphical analysis method, the typification of lake ecosystems transformation scenarios depending on the size of lakes was carried out. It was confirmed that the type of transformation depends not only on size of the lake, but also on the landscape and climatic region in which it is located. The distinctive features of lake ecosystems transformation types in the European part of Russia and in Western Siberia were analyzed and compared.


Author(s):  
Zinaida V. Pushina ◽  
Galina V. Stepanova ◽  
Ekaterina L. Grundan

Zoya Ilyinichna Glezer is the largest Russian micropaleontologist, a specialist in siliceous microfossils — Cenozoic diatoms and silicoflagellates. Since the 1960s, she systematically studied Paleogene siliceous microfossils from various regions of the country and therefore was an indispensable participant in the development of unified stratigraphic schemes for Paleogene siliceous plankton of various regions of the USSR. She made a great contribution to the creation of the newest Paleogene schemes in the south of European Russia and Western Siberia, to the correlations of the Paleogene deposits of the Kara Sea.


Author(s):  
Lyudmila Ashmarina

The directions and results of many years of research on the development and prevalence of diseases on perennial leguminous grasses (meadow clover, pannonian clover, sainfoin, sowing alfalfa) in Western Siberia are presented. A whole range of diseases was revealed, the intensity of development, which depends on weather conditions, resistance of varieties, plant age, etc.


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