Výsledky vyhledávání - "N. K. Skalyga"

Application of Empirical Orthogonal Functions Parameterization in the Problem of Retrieval of the Tropospheric Thermal Structure by Radiometric Data

Autor: N. K. Skalyga, M. Yu. Kulikov, A. A. Krasilnikov, V. G. Ryskin, E. A. Serov, A. A. Shvetsov, Alexander Feigin, M. V. Belikovich

Publikováno v: Radiophysics and Quantum Electronics. 62:591-605

We describe the mathematical tools of the optimal estimation method for retrieval of tropospheric temperature profiles (0–10 km) from radiometric data with the desired profiles parameterized in the form of expansion over empirical orthogonal functi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1df9b5b9c5ec88178efacf6e1d51ed51
https://doi.org/10.1007/s11141-020-10005-3

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Microwave Radiometric Complex for Studying the Thermal Structure of the Earth’s Atmosphere

Autor: N. K. Skalyga, L. M. Kukin, A. A. Shvetsov, A. A. Krasilnikov, M. V. Belikovich, V. G. Ryskin, Alexander Feigin, M. Yu. Kulikov, I. V. Lesnov, O. S. Bol’shakov

Publikováno v: Radiophysics and Quantum Electronics. 59:734-740

We describe a microwave radiometric complex intended for remote passive monitoring of the atmospheric temperatures from the Earth’s surface. The complex consists of three spectroradiometers operating in a frequency range of 50–60 GHz, which cover

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7d713db0104bc4536b22ace3377574cf
https://doi.org/10.1007/s11141-017-9742-x

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Long-Term Observations of Microwave Brightness Temperatures over a Metropolitan Area: Comparison of Radiometric Data and Spectra Simulated with the Use of Radiosonde Measurements

Autor: V. G. Ryskin, E. A. Serov, Svetlana O. Dementyeva, M. V. Belikovich, N. K. Skalyga, Mikhail Yu. Kulikov, A. A. Shvetsov, Dmitry S. Makarov, Alexander Feigin, A. A. Krasilnikov

Publikováno v: Remote Sensing, Vol 13, Iss 2061, p 2061 (2021)

Ground-based microwave radiometers are increasingly used in operational meteorology and nowcasting. These instruments continuously measure the spectra of downwelling atmospheric radiation in the range 20–60 GHz used for the retrieval of tropospheri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::796301d90e4a447fb597ba7ba22ec430
https://doi.org/10.3390/rs13112061

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Skills of Thunderstorm Prediction by Convective Indices over a Metropolitan Area: Comparison of Microwave and Radiosonde Data

Autor: M. V. Shatalina, Mikhail Yu. Kulikov, Alexander Feigin, A. A. Shvetsov, A. A. Krasilnikov, V. G. Ryskin, E. A. Serov, Svetlana O. Dementyeva, N. K. Skalyga, M. V. Belikovich

Publikováno v: Remote Sensing, Vol 12, Iss 4, p 604 (2020)

In this work, we compare the values of 15 convective indices obtained from radiosonde and microwave temperature and water vapor profiles simultaneously measured over Nizhny Novgorod (56.2°N, 44°E) during 5 convective seasons of 2014−2018. A good

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::17fe24456dc8f40cd8751544b08744be
https://doi.org/10.3390/rs12040604

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Measurement of the middle-atmosphere temperature profile using a ground-based spectroradiometer facility

Autor: Alexander Feigin, O. S. Bol’shakov, Dmitry Mukhin, A. A. Shvetsov, L. I. Fedoseev, N. K. Skalyga, D. A. Karashtin

Publikováno v: Radiophysics and Quantum Electronics. 53:321-325

The spectroradiometer facility for ground-based thermal sensing of the middle atmosphere is developed and manufactured. Observation of the atmospheric self-radiation in the range including two lines (27_ and 29_) of spin-rotational transitions of mol

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d5bfaff270878d990b69d64292d04e08
https://doi.org/10.1007/s11141-010-9230-z

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Bayesian approach to recovery of the vertical profile of the stratosphere temperature from the ground-based measurements of solar radiation in millimeter absorption lines of molecular oxygen

Autor: Dmitry Mukhin, N. K. Skalyga, Alexander Feigin, D. A. Karashtin

Publikováno v: Radiophysics and Quantum Electronics. 52:705-713

We propose a method for recovery of the altitude profile of the stratosphere temperature using ground-based radiometric measurements. The method is based on the Bayesian approach to solving inverse problems and involves determining the probability di

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::96e92ce1dd0b5c6c2baf9f8d970b5c9f
https://doi.org/10.1007/s11141-010-9178-z

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Noise spectrum of the 140-GHz gyrotron designed for controlled thermonuclear fusion installations

Autor: N. K. Skalyga, L. V. Lubyako, A. N. Kuftin

Publikováno v: Technical Physics. 54:1332-1338

A method for measurement of gyrotron amplitude noise using the Mach-Zehnder interferometer as a rejection filter, the measurement facility, and results of testing a 140-GHz industrial high-power gyrotron are discussed. The method improved the sensiti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::107295baa8a68580d7b7308209a4016d
https://doi.org/10.1134/s1063784209090138

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Microwave spectroradiometer complex for remote study of the stratosphere thermal structure

Autor: D. A. Karashtin, L. I. Fedoseev, A. A. Shvetsov, N. K. Skalyga, V. M. Demkin

Publikováno v: Radiophysics and Quantum Electronics. 52:603-608

We describe a microwave spectroradiometer for thermal sensing of the stratosphere in the molecular oxygen lines located on the slope of a 5-mm band. An uncooled low-noise high-frequency amplifier ensures the device noise temperature 1400 K. The frequ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::163b4329f181240f45ec0f1901f1577a
https://doi.org/10.1007/s11141-010-9159-2

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System for measuring collective scattering spectra for thermonuclear plasma diagnostics

Autor: A M Shtanyuk, N. K. Skalyga, E. V. Suvorov, L. M. Kukin, A. B. Burov, L. V. Lubyako, Yu. A. Dryagin

Publikováno v: Technical Physics. 43:926-933

The design and arrangement of a detection system for measuring spectra, using a 140 GHz gyrotron as the probe-radiation source, developed for investigating collective Thomson scattering in plasma are discussed. The measurement procedure and examples

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::844f378267f28b38c2a3ab6723fc0e26
https://doi.org/10.1134/1.1259102

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Collective Thomson scattering at W7-AS

Publikováno v: Plasma Physics and Controlled Fusion. 39:B337-B351

Collective Thomson scattering (CTS) of electromagnetic radiation from thermal plasma fluctuations in principle allows the velocity distribution of plasma ions and its composition in the plasma to be measured. The use of powerful microwave radiation f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::33c3173305fb33c2a8eddf64d5527284
https://doi.org/10.1088/0741-3335/39/12b/026

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