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Learning at the Math-Mech of St.Petersburg State University (former Leningrad State Univertsity), I have already began to work at Atmospheric Physics Department of Physical Faculty, where performed my degree work. My sertificate of degree was obtained at the Math-Mech in 1976. Since my scientific interests are concentrated on the interpretation of satellite measurements of atmospheric composition and parameters of the atmosphere, that includes: calculations of atmospheric radiation characteristics, methods and realizations of the solution of inverse problems of atmospheric optics, methods for designing experiments, the interpretation of space and ground-based atmospheric transmittance and self-radiation measurements in different spectral ranges. Results of these studies were applied for interpreting the measurements by devices developed in our University ("IKAR", "PHENIX", "OZONE-M", "OZONE-MIR") and comprised the base of my Ph.D dissertation in Physics and Mathematics. This degree was received in 1994. Measurements by the last-mentioned device "OZONE-MIR" operating in the frames of the Project "PRIRODA" on the Orbital Station MIR in 1996-97 gave a possibility to obtain qualitative data on profiles of ozone and other atmospheric components.
In 2002 the USA device "SAGE III" (that is similar to "OZONE-MIR") began to operate. We updated the algorithms and codes developed for "OZONE-MIR" for interpreting the SAGE III measurements. Papers deducated to these studies are in the list of my papers, and retrieval results can be downloaded from this page.
As a result of my basic work, I became a doctoral thesis "Determination
of the gas composition of the atmosphere and aerosol characteristics by
eclipsing method," which I successfully defended in March 2007.
Starting from 2009. on the department, and then - in the resource center "Geomodel" works an unique instrument - the Fourier interferometer BRUKER IFS 125HR. Thanks to the work of our colleagues who perform regular measurements of solar radiation spectra, I have the opportunity to obtain data on the total content of gases such as HCl, HF and some freons in the atmosphere. These measurements and analysis of their results constitute an essential part of my interests.
At the same time, the satellite theme has been continued. So, in the middle of the 2000 eyars we succeeded in developing a technique based on the method of artificial neural networks (ANN) which allows to obtain the total ozone content (TOC) based on the spectral data of the European geostationary instrument SEVIRI. High spatial and temporal resolution of SEVIRI measurements allowed to obtain TOC with the same space-time characteristics.
For many years fruitful cooperation with SRC "Planeta" and the Keldysh Center has continued, the main theme of which is the inversion of radiation measurements of instruments of Russian meteorological satellites of the "Meteor M" series. Instruments that measure the outgoing radiation of the Earth in the IR and microwave regions of the spectrum, traditional for meteorological satellites in the sun-synchronous orbit, make it possible to obtain not only meteorological data (temperature and humidity profiles), but also data on the composition of the atmosphere, in particular, TOC. The software for converting the results of spectral measurements into data on the state and composition of the atmosphere was developed by us with colleagues and transmitted to the SRC "Planeta". Comparison of temperature profiles with radiosonde data showed agreement between the results of two types of measurements within 1K for most of the troposphere and the lower stratosphere.
Some papers You can download from the laboratory site.
Polyakov Alexander Viktorovich,
Ph.D. in Physics and Mathematics, professor
Atmospheric Physics Department,
Faculty of Physics SPbSU
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To laboratory site http://troll.phys.spbu.ru
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