Dr. Aleksei V. Ermoshkin Profile

Dr. Aleksei V. Ermoshkin

at Institute of Applied Physics of the RAS

SPIE Involvement:

Author

Area of Expertise:

Doppler radar , waves , current , internal waves , oil spill , SAR

Websites:

Personal Website | Company Website

Profile Summary

Research interests include: tasks of remote sensing, especially radar and coherent radar sensing of sea wind, waves, currents, internal waves, oil pollutions and etc., physics of interaction of internal waves and inhomogeneous currents with surface waves and their manifestation on sea surface for remote sensing applications.

Publications (16)

Proceedings Article | 12 September 2021 Poster + Paper

Poster + Paper

The multisensory approach to hydrophysical measurements of the ocean surface layer

Alexey Ermoshkin, Mikhail Salin, Ivan Kapustin, Alexander Molkov, Nikolay Bogatov

Proceedings Volume 11857, 118570S (2021) https://doi.org/10.1117/12.2600136

KEYWORDS: Radar, Scattering, Acoustics, Doppler effect, Ocean optics, Remote sensing

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Proceedings Article | 12 September 2021 Poster + Paper

Poster + Paper

An empirical radar backscatter model at co-polarized and cross-polarized x-band under high‐wind conditions

Yuliya Troitskaya, Viktor Abramov, Georgy Baidakov, Olga Ermakova, Daniil Sergeev, Alexey Ermoshkin, Alexander Kandaurov, Nikita Rusakov, Evgeny Poplavsky, Maxim Vdovin

Proceedings Volume 11857, 118570Q (2021) https://doi.org/10.1117/12.2599885

KEYWORDS: Radar, Microwave radiation, Backscatter, Doppler effect, X band, Wind measurement, Phase velocity, Scattering, Calibration, Polarization

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Proceedings Article | 12 September 2021 Poster + Paper

Poster + Paper

Investigation of the possibility of ecological monitoring of inland water reservoirs using an automatic radar system

Alexey Ermoshkin, Ivan Kapustin, Nikolay Bogatov, Alexander Molkov, Evgeniy Poplavskiy, Nikita Rusakov, Alexander Yunisov

Proceedings Volume 11857, 118570P (2021) https://doi.org/10.1117/12.2599874

KEYWORDS: Radar, Pollution, Neurons, Pollution detection, Environmental monitoring, Contamination, Water, Algorithm development, Detection and tracking algorithms

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Proceedings Article | 20 September 2020 Poster + Paper

Poster + Paper

Theoretical and experimental studies of sea surface current and wind waves spectra estimation using microwave Doppler marine radars

Alexey Ermoshkin, Ivan Kapustin, Alexander Molkov, Nickolay Bogatov

Proceedings Volume 11529, 115290U (2020) https://doi.org/10.1117/12.2574264

KEYWORDS: Doppler effect, Radar, Microwave radiation, Oceanography, Water, Error analysis, X band, Ka band, Wind measurement, Panoramic photography

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Proceedings Article | 20 September 2020 Poster + Paper

Poster + Paper

Observations of radar/optical slick signatures of marine processes in the coastal zone

Ivan Kapustin, Olga Danilicheva, Olga Shomina, Alexander Molkov, Alexander Kupaev, Alexey Ermoshkin, Irina Sergievskaya, Stanislav Ermakov

Proceedings Volume 11529, 115290T (2020) https://doi.org/10.1117/12.2574236

KEYWORDS: Ocean optics, Radar, Oceanography, Image processing, Remote sensing, Sensors, Atmospheric physics, Atmospheric sensing, Applied physics, Satellite imaging

Read Abstract +

Analysis of possibilities of identification and characterization of marine processes using their signatures in radar and optical imagery of the sea surface is a very important problem of the ocean remote sensing which has not been solved yet completely by now. Marine slicks which are the areas of suppressed wind waves can be recorded by different sensors and can be indicators of internal waves, non uniform currents, atmospheric convective cells, etc. Field studies including those simultaneous and co-located with remote observations is the most perspective way to the problem solution. An expedition of the Institute of Applied Physics RAS was organized to study the nature of slick bands and its dynamics in the field of various subsurface processes. Field experiments were carried out in the coastal zone of the Black sea from the Oceanographic Platform of Marine Hydrophysical Institute RAS and from the shore. The structure of the currents in the studied area is characterized by significant heterogeneity, so we were able to register different slick structures in the flow field and wind and the slick dynamics. In some experiments, marine slicks were recorded simultaneously in satellite Sentinel images. Observations of surface manifestations of internal waves were carried out using a digital radar station MRS-1000 and multi-frequency radar complex of IAP RAS. At the same time the measurements of currents in the water column were carried out using the ADCP WH Monitor 1200 kHz, wind speed and direction at a height of 30 meters using WindSonic acoustic anemometer. During the passage of internal waves a system of slick bands with a reduced intensity of small-scale waves were observed. Slick bands were observed mainly over the rear slopes of the internal waves; the data from the accompanying measurements showed that the phase velocity was close to the surface current velocity. Theoretical analysis has shown that in this case the convergent zones, where surfactants are accumulated were formed at the rear slopes of the internal waves. This mechanism of slick formation was predicted earlier theoretically and then was modeled in laboratory experiment.

Proceedings Article | 20 September 2020 Poster + Paper

Poster + Paper

Strong variations of radar return from the sea surface due to breaking surface waves

I. Sergievskaya, S. Ermakov, A. Ermoshkin, I. Kapustin, A. Kupaev, O. Shomina

Proceedings Volume 11529, 115290Q (2020) https://doi.org/10.1117/12.2574094

KEYWORDS: Radar, Polarization, Backscatter, Modulation, Microwave radiation, Doppler effect, Kinematics, Remote sensing, X band

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Proceedings Article | 14 October 2019 Paper

Paper

Statistical characteristics of Doppler velocity shift in artificial slick on sea surface

Alexey Ermoshkin, Alexander Molkov, Ivan Kapustin

Proceedings Volume 11150, 111501L (2019) https://doi.org/10.1117/12.2533167

KEYWORDS: Radar, Doppler effect, Modulation, Spatial resolution, X band, Polarization, Phase shift keying, Fourier transforms, Antennas, Shape analysis

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Proceedings Article | 14 October 2019 Paper

Paper

Slick bands kinematics due to marine current and wind: study and simulation

Olga Shomina, Aleksey Ermoshkin, Olga Danilicheva, Tatiana Tarasova, Ivan Kapustin

Proceedings Volume 11150, 111501J (2019) https://doi.org/10.1117/12.2533150

KEYWORDS: Ocean optics, Remote sensing, Synthetic aperture radar, Water, Atmospheric propagation, Environmental sensing, Sensing systems, Satellites

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Proceedings Article | 14 October 2019 Paper

Paper

On the features of Doppler velocities estimation with coherent radar of high spatial resolution

Alexey Ermoshkin, Ivan Kapustin, Alexander Molkov, Nikolay Bogatov, Viktor Bakhanov

Proceedings Volume 11150, 111501I (2019) https://doi.org/10.1117/12.2533072

KEYWORDS: Radar, Doppler effect, Spatial resolution, Modulation, X band, Polarization, Fourier transforms, Antennas, Wave propagation, Phase velocity

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Proceedings Article | 10 October 2018 Presentation + Paper

Presentation + Paper

Particularities of radar backscattering associated with wave breaking on the sea surface

I. Sergievskaya, S. Ermakov, A. Ermoshkin, I. Kapustin, O. Danilicheva

Proceedings Volume 10784, 107840P (2018) https://doi.org/10.1117/12.2325708

KEYWORDS: Radar, Doppler effect, Polarization, Backscatter, Scattering, Modulation, X band, Microwave radiation, Water, Modulation transfer functions

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Proceedings Article | 7 May 2016 Paper

Paper

Study on wind wave variability by inhomogeneous currents in the neighborhood underwater hill

Victor Bakhanov, Nikolai Bogatov, Alexei Ermoshkin, Victor Titov, Alexei Zimin

Proceedings Volume 9878, 98781D (2016) https://doi.org/10.1117/12.2224317

KEYWORDS: Water, Radar, Ocean optics, Acoustics, Oceanography, Environmental sensing, Panoramic photography, Temperature metrology, Data conversion, Data processing

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Proceedings Article | 14 October 2015 Paper

Paper

Laboratory investigation of wind wave breaking modulation in the inhomogeneous current field

Victor Bakhanov, Nikolai Bogatov, Alexei Ermoshkin, Olga Kemarskaya

Proceedings Volume 9638, 963810 (2015) https://doi.org/10.1117/12.2195138

KEYWORDS: Doppler effect, Diffusers, Radar, Polarization, Ka band, X band, Cameras, Velocity measurements, Modulation, Wave propagation

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Proceedings Article | 14 October 2014 Paper

Paper

Using of standard marine radar for determination of a water surface and an atmosphere near-surface layer parameters

Nikolay Bogatov, Victor Bakhanov, Aleksei Ermoshkin, Vasily Kazakov, Olga Kemarskaya, Victor Titov, Yulia Troitskaya

Proceedings Volume 9240, 924013 (2014) https://doi.org/10.1117/12.2067403

KEYWORDS: Radar, Ocean optics, Oceanography, Water, Satellites, Digital recording, Velocity measurements, Diagnostics, Satellite imaging, Standards development

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Proceedings Article | 16 October 2013 Paper

Paper

Laboratory investigation of short wind wave breaking modulation in the long surface wave field

V. Bakhanov, N. Bogatov, A. Ermoshkin, A. Kandaurov, O. Kemarskaya, D. Sergeev, Yu. Troitskaya

Proceedings Volume 8888, 888809 (2013) https://doi.org/10.1117/12.2030287

KEYWORDS: Polarization, Cameras, Video, Ka band, Solids, Modulation, X band, Image analysis, Video processing, Radar

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Proceedings Article | 19 October 2012 Paper

Paper

Study on wind wave variability by inhomogeneous currents in the closed seas

Victor Bakhanov, Nikolai Bogatov, Aleksei Ermoshkin, Andrei Yu. Ivanov, Olga Kemarskaya, Victor Titov

Proceedings Volume 8532, 85320N (2012) https://doi.org/10.1117/12.974774

KEYWORDS: Radar, Synthetic aperture radar, Panoramic photography, Satellites, Satellite imaging, Numerical simulations, Ocean optics, Acoustics, Polarization, Scientific research

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Proceedings Article | 8 October 2011 Paper

Paper

Full-scale investigations of the action of internal waves and inhomogeneous currents on the wind waves in the White Sea

Victor Bakhanov, Nikolai Bogatov, Aleksei Ermoshkin, Andrei Ivanov, Vadim Lobanov, Olga Kemarskaja, Victor Titov

Proceedings Volume 8175, 81750L (2011) https://doi.org/10.1117/12.898364

KEYWORDS: Radar, Panoramic photography, Ocean optics, Radar signal processing, Satellites, Signal processing, Temperature metrology, Scientific research, Acoustics, Kinematics

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Showing 5 of 16 publications

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