Denis Valentinovich Simonenkov

• Ph.D.
• Senior Researcher at Russian Academy of Sciences

This work presents the analysis of the spatial distribution of number concentration, size distribution, and chemical composition of aerosol particles measured for the first time over the seas of the Russian Arctic. Various types of vertical distribution of the number concentration were recorded, characteristic of both coastal marine and continental...

An Erratum to this paper has been published: https://doi.org/10.1134/S1024856024330017

Based on the results of a comprehensive experiment conducted in September 2020, the spatial distribution of the following trace gases over the seas of the Russian Arctic are analyzed: carbon monoxide (CO), ozone (O 3 ), nitrogen oxide and dioxide (NO and NO 2 ), and sulfur dioxide (SO 2 ). It is shown that the gas concentrations in the surface air...

Atmospheric sounding using the Tu-134 Optik aircraft-laboratory was conducted in September 2020 over the seas of the Russian sector of the Arctic Ocean, namely the Barents, Kara, Laptev, East Siberian, Chukchi and Bering seas. Unique samples of atmospheric aerosols at altitudes from 200 and up to 10,000 m were taken, including samples for the ident...

An Erratum to this paper has been published: https://doi.org/10.1134/S1024856023340018

In the Arctic, global warming is 2–3 times faster than over other regions of the globe. As a result, noticeable changes are already being recorded in all areas of the environment. However, there is very little data on such changes in the Russian Arctic. Therefore, to fill the gap in the data on the vertical distribution of the gas and aerosol compo...

The average monthly profiles of the dust extinction coefficient (ε) were analyzed according to the CALIOP lidar data from 2006-2021 for 24 cells (size of 2° × 5°) in the Aral-Caspian arid region (ACAR; 38-48°N, 50-70°E). Using the NOAA HYSPLIT_4 trajectory model and the NCEP GDAS1 gridded (resolution of 1° × 1°) archive of meteorological data, the...

The object of the study is the dispersed fractions of an aerosol substance in the snow cover. At the sampling sites located in the middle taiga zone within the Mezen-Vychegoda Plain on a high terrace in the Sysola river valley, 3 km west of the city of Syktyvkar, fresh snow and surface frost were sampled. The analysis of the ratios in the surface h...

The purpose of this study was to compare the concentration of total protein, as well as the composition and abundance of culturable microorganisms in atmospheric aerosols collected over the Vasyugan marshes and the Karakan pine forest during a flight in September 2018 at altitudes from 500 to 7000 m. The determined concentrations of total protein i...

The paper presents data acquired by a comparative study of the vertical variability in the chemical composition and ratios of aerosol subdisperse fractions in snow layers chronologically correlated with the stratigraphically significant snowfall periods. These data highlight features of the concentrating of trace elements at reactive (geochemical)...

The layered distribution of the isotopic composition (18O) in the snow mass under conditions of different dust pollution of the near-surface atmosphere was studied on the territory of two scientific test sites of the IAO SB RAS: the Fonovaya observatory and the suburban BEK test site (Tomsk). Interlayer differences in isotopic characteristics and...

The change of the global climate is most pronounced in the Arctic, where the air temperature increases 2 to 3 times faster than the global average. This process is associated with an increase in the concentration of greenhouse gases in the atmosphere. There are publications predicting the sharp increase in methane emissions into the atmosphere due...

Background: Biological components of atmospheric aerosol affect the quality of atmospheric air. Long-term trends in changes of the concentrations of total protein (a universal marker of the biogenic component of atmospheric aerosol) and culturable microorganisms in the air are studied. Methods: Atmospheric air samples are taken at two locations in...

The change of the global climate is most pronounced in the Arctic, where the air temperature increases two to three times faster than the global average. This process is associated with an increase in the concentration of greenhouse gases in the atmosphere. There are publications predicting the sharp increase of methane emissions into the atmospher...

Based on the previously proposed comprehensive backward-trajectory methodology for studying the patterns of transboundary transport of aerosol-gas air impurities originated from desert regions of Central Asia, the impact of the Aral-Caspian arid zone on Tomsk region and on the background area of the Ob region in the south of the Novosibirsk Oblast...

We present a comparative study of the ratio of aerosol fractions in the surface air and snow layers chronologically referenced to stratigraphically significant snowfalls. Trajectories of winter air masses were calculated using the NOAA HYSPLIT_4 model and NCEP/NCAR Reanalysis meteorological fields. The features of the formation of the winter aeroso...

A combined experiment aimed at the study of the air composition over all the seas in the Russian Arctic was carried out in September 2020 with the Optik Tu-134 flying laboratory. The experiment included sampling the of atmospheric aerosol in the air layer from 200 to 9000 m above sea level and determining the concentration of saturated hydrocarbons...

One of the most important components of atmospheric aerosols are microorganisms. Therefore, it is necessary to assess the hazard to humans, both from individual microorganisms which are present in atmospheric bioaerosols as well as from their pool. An approach for determining the hazard of bacteria and yeasts found in atmospheric bioaerosols for hu...

When analyzing chemical compositions of snow the high variability of content of polycyclic aromatic hydrocarbons (PAHs) in snow cover between snowfalls is observed. Researchers explain this by concentrating of snow. However, another mechanism of atmospheric contamination of the snow cover surface is possible. It may be a precipitation of fine cryst...

The data from aircraft sounding of the emission plume in the atmosphere of the Norilsk industrial region in summer are numerically analyzed. A two-parameter model was developed for numerical retrieval of impurity concentrations in directions transverse to the plume. The lower limits of sulfur dioxide emission corresponding to different emission tim...

We describe the current state and technical characteristics of Tropospheric Ozone Research (TOR) station, created 25 years ago to monitor atmospheric composition, basic meteorological variables, and other parameters. The multiyear observations showed that the air quality on the territory of Akademgorodok in Tomsk has been substantially degraded sin...

Data of multiyear monitoring at the TOR station are used to calculate the average concentrations of gas and aerosol constituents in different air masses in the region of Tomsk. It is shown that CO2 and CH4 are characterized by a decrease in concentrations in going from an Arctic to a tropical air mass. Ozone shows the opposite pattern: the largest...

Almost monthly sensing of the troposphere from 500 to 7000 m above Karakansky bor (Novosibirsk Province) are conducted since 1997 up to now by using of the aircraft-laboratory "Optik" based on Antonov-30 or Tupolev-134. Aerosol sampling on to Petryanov filters AFA-CP-20 for subsequent laboratory quantitative analysis of the content of inorganic ion...

Data from aircraft and satellite sensing at the ocean–land boundary in the region of the Kara Sea in October 2014 are compared, using 11 and 7 profiles, which were synchronously measured over a continental part and ocean, respectively. It was found that the satellite usually overestimates the CH4 and CO2 concentrations in the 0–8-km layer over the...

We analyze the dynamics of layer-by-layer variations in aerosol contamination of snow cover under the circulation conditions during winter at the site of the Fonovaya Observatory (Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences) in the Tom-Ob interfluve. The chemical composition of the snow cover at the observation poi...

Models for estimating the average and maximum concentrations of chemically active impurities in cross sections of their plumes from remote stationary sources are proposed. The models were tested with the use of aircraft sounding data on the multicomponent contamination of the winter atmosphere in the Norilsk industrial region. The process of gas–pa...

The atmospheric air quality is determined by the concentrations of some gaseous pollutants and mass concentrations of aerosol particles of different sizes. A wide range of atmospheric pollutants in both gaseous and aerosol phases was studied in the vicinity of Gelendzhik in July 2009, simultaneously at several land sites, in the water area of the b...

Data on the vertical distribution of gaseous and aerosol composition of air, measured onboard the Tu-134 Optic airborne laboratory in October 2014 over the Kara Sea and coastal areas of the Russian Arctic, are presented. We revealed the specific features of the altitude distributions of CO2 and aerosol over the Kara Sea as compared to continental c...

The results of sensing of the gas and aerosol composition of the atmosphere with the Optik Tu-134 aircraft laboratory in the period from 31 July to 1 August 2012 are presented. The measurements were conducted along the flight route Novosibirsk-Tomsk-Mirny-Yakutsk-Bratsk-Novosibirsk. A significant part of the Siberian territory during this period wa...

For the background region of Tom–Ob interfluve, we performed the comparative analysis of the chemical composition of water- and acid-soluble aerosol fractions in dry deposits, coupled with an estimation of the ratio of submicron and coarse fractions in near-ground aerosol in this background region, and a study of their mineral and material composit...

The results of an airborne survey of plumes from the Norilsk Mining and Metallurgical Plant by an Optik-É AN-30 aircraft laboratory on November 10, 2002 are discussed. Most pollutants are blown out of the city in the gas phase in the form of acidic oxides (mainly sulfur). Mapping of the substances is performed along the main trajectory of air mass...

We study the annual behavior of the concentration of organic components of the atmospheric aerosol, sampled onboard the Tu-134 Optik airborne laboratory in the atmospheric layer of 500–8500 m. The concentration of the organic component in aerosol composition is found to be maximal during spring and minimal during fall. Compounds ranging from C8H18...

The primary project objective was to accomplish the Complex Aerosol Experiment, during which the aerosol properties should be measured in the near-ground layer and free atmosphere. Three measurement cycles were performed during the project implementation: in spring period (April), when the maximum of aerosol generation is observed; in summer (July)...

This paper presents the data of the vertical distribution of ion concentrations in aerosols and their seasonal characteristics obtained during the flights of the aircraft-laboratory Tupolev-134 "Optics" in 2011 – 2013 over the Karakan boron area in the southern part of the right bank of the Novosibirsk reservoir. The time duration of each flight is...

The primary objective of this complex aerosol experiment was the measurement of microphysical, chemical, and optical properties of aerosol particles in the surface air layer and free atmosphere. The measurement data were used to retrieve the whole set of aerosol optical parameters, necessary for radiation calculations. Three measurement cycles were...

The primary objective of the Complex Aerosol Experiment was measurement of microphysical, chemical, and optical properties of aerosol particles in the surface air layer and free atmosphere. The measurement data were used to retrieve the whole set of aerosol optical parameters, necessary for radiation calculations. Three measurement cycles were perf...

Geophysical Research Abstracts Vol. 17, EGU2015-4841, 2015 EGU General Assembly 2015 © Author(s) 2015. CC Attribution 3.0 License. Distribution of trace gases and aerosols in the troposphere over West Siberia and Kara Sea Boris D. Belan (1), Mikhail Yu. Arshinov (1), Jean-Daniel Paris (2), Philippe Nédélec (3), Gérard Ancellet (4), Jacques Pelon (...

The main aim of the work was complex experimental measurements of microphysical, chemical, and optical parameters of aerosol particles in the surface air layer and free atmosphere. From the measurement data, the entire set of aerosol optical parameters was retrieved, required for radiation calculations. Three measurement runs were carried out in 20...

In this paper we present a comparison of the data on aerosol number size distribution measured with GRIMM 1.109 aerosol spectrometer in the lower troposphere over Novosibirsk and background area 150 km south-west of it during research flights of Optik TU-134 aircraft laboratory carried out along the route Novosibirsk - Ordynskoye - Novosibirsk in 2...

We considered the methodological questions: aerosol sampling on board research aircraft, extraction of an organic component, and identification of its constituent compounds. It is verified how aviation materials (kerosene, oil, hydraulic fluid) can influence the measurement data. We analyzed the composition of organic components of atmospheric aero...

A unique instrumentation complex of the Institute of Atmospheric Optics SB RAS is presented. The complex has no analogues anywhere in the world, and makes possible simultaneous measurements of a great number of optical, meteorological, and radiative parameters of the atmosphere, as well as characteristics of aerosol and gas composition. The instrum...

Artificial radionuclides, such as iodine-131 ((131)I), cesium-134 ((134)Cs), and cesium-137 ((137)Cs), as well as natural isotopes of beryllium-7 ((7)Be) and potassium-40 ((40)K) have been registered in atmospheric aerosols over Vladivostok selected from 11 March to 17 June 2011. Additionally, (134)Cs and (137)Cs were detected in atmospheric aeroso...

Long-term trend of tropospheric aerosols in the background atmosphere of the southern part of West Siberia

Optik TU-134 aircraft laboratory

The scientific instrumental complex of the Optik-E AN-30 aircraft laboratory developed at the Institute of Atmospheric Optics of the Siberian Branch of the Russian Academy of Sciences is described in detail. Specifications of the main units of the instrumental complex are presented. Special attention is given to the metrological support of measurem...

Some Regularities in the Distribution of Inorganic Chemical Components of Aerosol Matter over Background Region of West Siberia

Aerosol Chemical Composition over West and East Siberia

In this paper we discuss the data on chemical composition of aerosol emitted by enterprises in some regions during 1990-2004. The larger half of airborne surveys was carried out in 1990-1992 over largest industrial centers of Russia and Kazakhstan (Nizshnii Tagil, Khabarovsk, Nizshnevartovsk, Komsomolsk-na-Amure, Ulan-Ude, Pavlodar, Ust-Kamenogorsk...

The influence of the Tomsk city on the chemical and disperse composition of surface atmospheric aerosols has been estimated by means of carrying out several continuous measurement campaigns at two different sites (urban and rural). It is shown that the determining factors in formation of aerosol field over a big enough city are the prehistory of ai...

The evaluation and prediction of air quality in settlements requires our awareness of the main pollutant sources and their power changing with time (anthropogenic sources) or under the influence of environmental conditions (natural sources). In seaside cities, aerosol of sea origin is one of significant sources of air pollutants. Complex estimation...

The search for the chemical and biomarkers of aerosol originating from the surface microlayer (SML) of water areas of health resort zones at Lake Baikal was performed. The concentrations of Ca, Mg, Na, K, Cu, Zn, Fe, Mn, Al, Ba, Pb, Cd, As, naphthalene, acenaphthene, acenaphthilene, fluorene, phenanthrene, anthracene, fluoranthene, pyrene, benz(a)a...

It is typical feature of Siberian cities that the quality of the atmosphere significantly depends on the climate conditions. During more than half of year, stable atmospheric stratification dominates over Siberia with temperature inversions, favoring accumulation of pollutants of different origin in the lower atmospheric layers. In addition to seve...

Unusual vertical profiles of concentrations of the total protein and culturable microorganisms in atmospheric aerosol of Southwestern Siberia at the altitudes from 500 to 7000 m were revealed previously. To understand the regularities of their formation, more detailed average annual profiles of these concentrations have been constructed, and their...

Some results of analysis of more than 400 aerosol samples made over West Siberia regions during the last five-year studies onboard airborne laboratory are presented. Analysis of samples enabled us to reconstruct differential distributions of ions and element. The chemical matrix for Si, Al, Fe, Mg, Ca, Ti, Cu, Mn, Cr, Ag, Pb, Ni, Ba, Sn, V, Mo, Co,...

To verify the hypothesis of closed air circulation on the perimeter of Lake Baikal, airborne and ground-based expeditions were organized. As a result of these expeditions, the occurrence of the air circulation was confirmed and its properties and spatiotemporal characteristics were determined. In addition, the role of the circulation in the transpo...

In December 1992 a station for atmospheric observations has been put into operation at the Institute of Atmospheric Optics within the frameworks of the program of ecological monitoring of Siberia. The station provides for acquiring data on gas and aerosol composition of the atmosphere, on meteorological quantities, and the background of gamma radia...