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November 2017 - present
April 2005 - April 2006
September 2000 - November 2017
Publications
Publications (117)
The results of a series of spectroscopic measurements of NO2 content in the troposphere, carried out on a closed route of the ring road (KAD) of St. Petersburg in different seasons of 2012, 2014, 2015 and 2016, are considered. A unified approach to the interpretation of all experimental data using numerical modeling of the dispersion of air polluti...
This paper presents the results of measurements of the optical characteristics of aerosol particles using a solar photometer and nephelometer from 2016 to 2021 obtained at the atmospheric monitoring station in Peterhof (59.88° N, 29.83° E). The measurements are compared with the MERRA-2 reanalysis data. It is shown that interseasonal variability is...
Ozone in the troposphere is a pollutant and greenhouse gas. Atmospheric models can add valuable information to observations for studying the spatial and temporal variations in tropospheric ozone content. The present study is intended to evaluate the variability in tropospheric ozone and its precursors near the Gulf of Finland with a focus on St. Pe...
Key long-lived greenhouse gases (CO2, CH4, and N2O) are perhaps among the best-studied components of the Earth’s atmosphere today; however, attempts to predict or explain trends or even shorter-term variations of these trace gases are not always successful. Infrared spectroscopy is a recognized technique for the ground-based long-term monitoring of...
In order to study temporal variations in the mixing ratios of greenhouse carbon-containing gases and factors influencing them, local measurements of CO2, CH4 (January 2013–January 2020), and CO (January 2013–January 2019) mixing ratios in atmospheric air at the monitoring station of St. Petersburg State University are analyzed taking into account t...
Liquid water path (LWP) is one of the most important cloud parameters and is crucial for global and regional climate modelling, weather forecasting, and modelling of the hydrological cycle and interactions between different components of the climate system: the atmosphere, the hydrosphere, and the land surface. Space-borne observations by the SEVIR...
Tropospheric ozone (TO) is one of the major greenhouse gases and a toxic air pollutant. It plays a key role in various chemical and photochemical processes in the troposphere. Ozone concentrations both at surface level and in free troposphere are measured by various local and remote-sensing methods. The SPBU observational site in Peterhof (NDACC si...
Climate change is one of the most important global problems of the 21st century. The territory of Russia is located in an area of significant observed and forecasted climate change. Achieving Russia's carbon neutrality by 2060 requires the development of a national system for monitoring greenhouse gas emissions and uptake. To achieve this goal, the...
Megacities are strong sources of environmental pollution. Accurate estimates of the corresponding emissions are important to assess environmental impact and to ensure reliable operation of numerical atmospheric models. One of the most important factors of air pollution in large cities and industrial centers is anthropogenic emission of nitrogen oxi...
This work employs ground- and space-based observations, together with model data, to study columnar abundances of atmospheric trace gases (XH2O, XCO2, XCH4 and XCO) in two high-latitude Russian cities, St. Petersburg and Yekaterinburg. Two portable COllaborative Column Carbon Observing Network (COCCON) spectrometers were used for continuous measure...
Combined zenith and off-zenith ground-based observations by modern microwave radiometers provide an opportunity to study horizontal inhomogeneities of the humidity field in the troposphere and of the cloud liquid water path (LWP) spatial distribution. However, practical applications are difficult and require thorough analysis of the information con...
The evolution of NO2, considered as a proxy for air pollution, was analyzed to evaluate the impact of the first lockdown (17 March–10 May 2020) over the Île-de-France region (Paris and surroundings). Tropospheric NO2 columns measured by two UV-Visible Système d'Analyse par Observation Zénithale (SAOZ) spectrometers were analyzed to compare the evol...
The first experience of using the DOAS differential spectroscopy technique in the problem of determining the total ozone content (TOC) from the results of measurements of the ground-based UV spectrometer UFOS is considered. Examples of spectra recorded by UFOS during joint zenith observations with similar spectral equipment are presented. Using DOA...
This work employs ground- and space-based observations, together with model data to study columnar abundances of atmospheric trace gases (XH2O, XCO2, XCH4, and XCO) in two high-latitude Russian cities, St. Petersburg and Yekaterinburg. Two portable COllaborative Column Carbon Observing Network (COCCON) spectrometers were used for continuous measure...
The anthropogenic impact is a major factor of climate change, which is highest in industrial regions and modern megacities. Megacities are a significant source of emissions of various substances into the atmosphere, including CO2 which is the most important anthropogenic greenhouse gas. In 2019 and 2020, the mobile experiment EMME (Emission Monitor...
The evolution of NO2, considered as proxy for air pollution, was analyzed to evaluate the impact of 1st lockdown (March 17th – May 10th 2020) over île-de-France region (Paris and surroundings). Tropospheric NO2 columns measured by two UV-Visible SAOZ spectrometers were analyzed to compare the evolution of NO2 between urban and suburban sites during...
Liquid water path (LWP) is one of the most important cloud parameters. The knowledge on LWP is critical for many studies including global and regional climate modelling, weather forecasting, modelling of hydrological cycle and interactions between different components of the climate system: the atmosphere, the hydrosphere, and the land surface. Sat...
Global climate change is one of the most important scientific, societal and economic contemporary challenges. Fundamental understanding of the major processes driving climate change is the key problem which is to be solved not only on a global but also on a regional scale. The accuracy of regional climate modelling depends on a number of factors. O...
The anthropogenic impact is a major factor of the climate change which is highest in industrial regions and modern megacities. Megacities are a significant source of emissions of various substances into the atmosphere, including CO2 which is the most important anthropogenic greenhouse gas. In 2019 and 2020, the mobile experiment EMME (Emission Moni...
To determine the methane emission intensities (EIs) in St. Petersburg and its suburbs measurements of the methane (CH4) mole fraction and total column were used, the analysis of which was carried out using the mass balance method. For the suburban territory the value of EIs was estimated from the events of nocturnal accumulation which were detected...
In 2019 and 2020, the mobile experiments EMME (Emission Monitoring Mobile Experiment) were conducted within the St. Petersburg agglomeration (Russia) aiming to characterize the emissions of greenhouse (CO2 , CH4 ) and reactive (CO, NOx ) gases for St. Petersburg, which is the largest northern megacity.
The results of measurements of surface concentrations of nitrogen oxides NOx (NO and NO2) performed at the atmospheric monitoring station near St. Petersburg (Petergof, 59.88 N, 29.83 E) in 2012–2018 are presented. The main patterns of the temporal variability of NOx concentrations typical for the urban atmosphere of a large megacity (seasonal, dai...
The measurements of mass concentrations of PM1, PM2.5, PM10 (2016-2018) using the aerosol spectrometer GRIMM, carried out near Saint-Petersburg, were analysed. The average values of PM1, PM2. 5 and PM10 for the entire measurement period are 4.5, 4.8 and 4.9 µg/m3, respectively. The average hourly measurements of PM10 concentrations were compared wi...
Improvement of cloud modelling for global and regional climate and weather studies requires comprehensive information on many cloud parameters. This information is delivered by remote observations of clouds from ground-based and space-borne platforms using different methods and processing algorithms. Cloud liquid water path (LWP) is one of the main...
Abstract. Global climate change is one of the most important scientific, societal and economic contemporary challenges. Fundamental understanding of the major processes driving climate change is the key problem which is to be solved not only on a global but also on regional scales. The accuracy of regional climate modelling depends on a number of f...
The improvement of cloud modelling for global and regional climate and weather studies requires comprehensive information on many cloud parameters. This information is delivered by remote observations of clouds from ground-based and space-borne platforms using different methods and processing algorithms. Cloud liquid water path (LWP) is one of the...
The results of 5-year (20132017) measurements of organic (OC) and elemental (EC) carbon aerosol fractions observed at the atmospheric monitoring station near St. Petersburg (Petergof, 59.88 N, 29.83 E) are presented. It is shown that the site of observations is under the influence of local pollution sources most of the time (~74%). The median value...
Cloud liquid water path (LWP) is one of the target atmospheric parameters retrieved remotely from ground-based and space-borne platforms using different observation methods and processing algorithms. Validation of LWP retrievals is a complicated task since a cloud cover is characterised by strong temporal and spatial variability while remote sensin...
The results of 5-year (2013–2017) measurements of organic (OC) and elemental (EC) carbon aerosol fractions observed at the atmospheric monitoring station near St. Petersburg (Petergof, 59.88° N, 29.83° E) are presented. It is shown that the site of observations is under the influence of local pollution sources most of the time (~74%). The median va...
The results obtained from test ground-based measurements with a new satellite instrument for mo-nitoring the Earth’s ozone layer are considered. The developed spectrometer, called ozonometer-TM, is to be installed aboard small near-Earth spacecraft (Ionosphere). The ozonometer-TM has been developed for monitoring the total ozone content based on th...
The measurements with a CIMEL CE 318 sun photometer near St. Petersburg within the AERONET international monitoring network are analyzed. Typical regional aerosol optical parameters (aerosol optical depth, Angstrom exponent, and single scattering albedo) and their variations are determined. Certain regularities in variations in the aerosol paramete...
Tropospheric clouds are a very important component of the climate system and the hydrological cycle in the Arctic and sub-Arctic. Liquid water path (LWP) is one of the key parameters of clouds urgently needed for a variety of studies, including the snow cover and climate modelling at northern latitudes. A joint analysis was made of the LWP values o...
Mobile DOAS (Differential Optical Absorption Spectroscopy) circular measurements of tropospheric nitrogen dioxide (NO2) were performed on a number of days in 2012 and 2014–2016 around St.Petersburg. These observations figured out an evolution of urban pollution plume, released from the megacity. The HYSPLIT (HYbrid Single-Particle Lagrangian Integr...
Free eprints of the article are available at
http://www.tandfonline.com/eprint/Ww6StcjTvnsBqIhJZRQy/full
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A built-in operational regression algorithm (REA) of liquid water path (LWP) retrieval supplied by the manufacturer of the RPG-HATPRO microwave (MW) radiometer has been compared to a so-calle...
In the paper, the concept of a new prospective Russian spectrometer intended for Earth atmosphere monitoring in the visible and near-UV spectral ranges from board of a spacecraft is presented. The goal of the instrument is to measure total ozone and other gases in the vertical column of the atmosphere. Its wide field of view (100°) makes it possibl...
The cross-comparison of different techniques for atmospheric integrated water vapour (IWV) measurements is the essential part of their quality assessment protocol. We inter-compare the synchronised data sets of IWV values measured by the Bruker 125 HR Fourier-transform infrared spectrometer (FTIR), RPG-HATPRO microwave radiometer (MW), and Novatel...
By virtue of their all-weather capabilities, the radiophysical atmospheric sensing methods allow one, in particular, to perform continuous observations of variations in the atmospheric content of water vapor being the most important natural greenhouse gas. The measurement station of St. Petersburg State University at Peterhof (59.88° N, 29.83° E) r...
The cross-comparison of different techniques for atmospheric integrated water vapour (IWV) measurements is the essential part of their quality assessment protocol. We inter-compare the synchronised data sets of IWV values measured by Fourier-transform infrared spectrometer Bruker 125 HR (FTIR), microwave radiometer RPG-HATPRO (MW) and global naviga...
We present the instrumentation and results of spectroscopic remote sensing of atmospheric NO2 levels based on recording spectra of visible solar radiation scattered from the zenith sky, carried out in the central part of St. Petersburg in 2009–2016. The data obtained qualitatively agree with the results of simultaneous analogous measurements in a s...
The results of spectroscopic measurements of tropospheric NO2 content performed on a closed route along the circular road around the city of St. Petersburg in 2012, 2014, and 2015 are presented. A procedure for determining the integral emission of NOx based on the data of measurements on the route enveloping the sources under study is described. An...
High-resolution in situ balloon measurements of water vapour, aerosol, methane and temperature in the upper tropical tropopause layer (TTL) and lower stratosphere are used to evaluate the processes affecting the stratospheric water budget: horizontal transport (in-mixing) and hydration by cross-tropopause overshooting updrafts. The obtained in situ...
High-resolution in situ balloon measurements of water vapour, aerosol, methane and temperature in the upper Tropical Tropopause Layer (TTL) and lower stratosphere are used to evaluate the processes controlling the stratospheric water budget: horizontal transport (inmixing) and hydration by cross-tropopause overshooting updrafts. The obtained in sit...
Since early 2009, high-resolution solar absorption spectra have been recorded at the Peterhof station (59.88°N, 29.82°E) of Saint Petersburg State University located in the suburbs of St. Petersburg. Measurements are made with the Fourier Transform Infrared (FTIR) system, which consists of Bruker IFS 125HR instrument (with maximum spectral resoluti...
Chemistry climate models of the gas composition of the atmosphere make it possible to simulate both space and time variations in atmospheric trace-gas components (TGCs) and predict their changes. Both
verification and improvement of such models on the basis of a comparison with experimental data are of great importance. Data obtained from the 2009–...
The results of daily observations of O3 and NO2 atmospheric total content near St. Petersburg retrieved from the automated ground-based measurements of zenith-sky scattered visible solar radiation are presented. The measurements of 2009–2013 are compared with the data of satellite measurements with the GOME (ERS-2), SCIAMACHY (ENVISAT), and OMI (AU...
We present mobile differential optical absorption spectroscopy (DOAS) zenith-sky observations of tropospheric NO2 from field experiments carried out at St Petersburg (Russia) on a number of days during May–October of 2009–2012. We conducted a detailed analysis of our measurements on a closed route around the entire city that took place on 14 August...
A new compact satellite spectrometer dedicated to monitoring terrestrial atmospheric ozone (ozonometer) is in preparation for the Russian Geophysics Program. Four instruments at four satellites (Ionosphere) are intended to monitor the total ozone content by measuring spectra of scattered solar radiation in nadir. The spectrometer is based on the Ro...
Long time series of ozone and NO2 total column measurements in the
southern tropics are available from two ground-based SAOZ (Système
d'Analyse par Observation Zénithale) UV-visible spectrometers operated
within the Network for the Detection of Atmospheric Composition Change
(NDACC) in Bauru (22° S, 49° W) in S-E Brazil since 1995
and Reunion Islan...
Regular intercomparison of different observing systems is a part of their testing and validation protocol, which gives the estimates of real measurement errors. The main objective of our study is the comparison of satellite and ground-based measurements of atmospheric composition near Saint Petersburg, Russia. Since early 2009, high-resolution Four...
Atmospheric NO2 content data obtained from regular ground-based measurements of solar IR radiation in the St. Petersburg region using a spectrometer with a high spectral resolution are analyzed. The absorption spectra of the NO2 multiplet in the vicinity of ∼2915 cm−1 allow one to obtain data on variations in the stratospheric total content of NO2...
Regular ground-based measurements of characteristics of atmospheric gas composition have been acquired at St. Petersburg State University (59 degrees 88' N, 29 degrees 83' E) since 1991. Equipment and techniques for interpreting the ground-based observations using measurements of spectra of direct solar IR radiation, zenith scattered UV and visible...
Long series of ozone and NO2 total column measurements at the
Southern tropics are available from two ground-based SAOZ
(Système d'Analyse par Observation Zenithale) UV-visible
spectrometers operated within the NDACC (Network for the Detection of
Amtospheric Composition Change) deployed in Bauru in S-E Brazil and
Reunion Island in the S-W Indian Oc...
The spectrometer for the monitoring of Earth atmospheric ozone from the board of spacecraft is being designed.
The aim of the spectrometer called “Ozonometer” is global and permanent monitoring of total ozone by means of
measuring spectra of scattered solar radiation in near-UV and visible range of spectrum (300 – 500 nm). This range
includes Huggi...
An overview of atmospheric trace gas measurements made using various spectroscopic ground-based instrumentation and measurement techniques at the Department of Physics of Atmosphere, St. Petersburg State University is given. The SPbSU trace-gas retrievals have been compared to independent ground-based and satellite measurements as well as to models...
The results of ground-based and satellite spectroscopic measurements of the tropospheric NO2 content near St. Petersburg in January–March 2006 are presented. It is shown that the increased concentrations of NO2 observed in St. Petersburg and its vicinities in this period were caused by NO2 accumulation due to unfavorable weather conditions, which i...
Among the main objectives of the Network for Detection of Atmospheric Composition Changes (NDACC) are the validation and assessment of possible biases between long-term series of data provided by various satellite instruments. Recently, the full series of SAOZ UV-Vis total ozone measurements in the visible Chappuis bands has been revised according...
The full series of SAOZ network total ozone measurements in the visible Chappuis bands has been revised according to the spectral analysis and Air Mass Factor (AMF) settings recommended by the NDACC UV-Vis Working Group (Hendrick et al., 2011). They have been compared to overpass observations from the TOMS, GOME-GDP4, SCIAMACHY-TOSOMI, SCIAMACHY-OL...
The remote sensing method based on ground-based measurements of the
direct solar IR radiance by Bruker Fourier spectrometer with high
spectral resolution (~0.005 cm-1) has been considered. The spectra
measured at St. Petersburg State University (59.88N, 29.82E) in
2009-2011 have been analyzed. The retrieval task has been processed
using SFIT2, PROF...
Stratospheric nitrogen dioxide (NO2) column measurements are daily
performed at sunrise and sunset using ground-based zenith-sky UV-visible
spectrometers deployed all over the world in about 35 stations, most of
them belonging to the Network for the Detection of Atmospheric
Composition Change (NDACC). Despite several cross evaluation exercises,
it...
Total ozone column measurements are routinely performed at sunrise and sunset using groundbased zenith-sky UV-visible spectrometers deployed all over the world in about 35 stations, most of them belonging to the NDACC network. Despite several cross evaluation exercises, it has been recognized that the O3 data sets still suffer from residual inconsi...
The space-time variability of the fields of CO, NO2, and O3 concentrations and contents in the troposphere of northwestern Russia is analyzed on the basis of experimental data and the
results of numerical modeling. The influence that the St. Petersburg emission has on the concentrations and contents of CO,
NO2, and O3 in the troposphere is estimate...
To interpret the ground-based measurements of the spectra of direct solar infrared radiation with the help of a Brucker Fourier-spectrometer,
a technique for determining the total ozone content (TOC) was developed and implemented. The TOC was determined using six
spectral intervals of an ozone-absorption band of 9.6 μm and the shortwave panel of a...