Onboard instrumentation of the Yak-42D “Roshydromet” new-generation research aircraft for measuring and registering flight parameters and atmospheric thermodynamic parameters

Bazanin, N. V.; Borisov, Yu. А.; Volkov, V. V.; Dmitriev, V. K.; Zhivoglotov, D. N.; Makosko, A. A.; Strunin, A. M.; Strunin, M. A.

doi:10.3103/s1068373914110077

Cited by 7 publications

(3 citation statements)

References 5 publications

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“…The currently employed research aircraft Yak-42D "Roshydromet" is equipped with instruments that allow defining the wind vector with a high accuracy and calculating wind shears and turbulent wind speed fluctuations in the atmosphere [1]. The principle of defining the wind speed vector aboard the research aircraft is based on calculating the difference between two vectors, those of the airspeed vector and the aircraft ground speed one.…”

Section: Introductionmentioning

confidence: 99%

“…The air temperature was measured using a high-frequency temperature sensor (HFTS) which is a hot-wire platinum sensitive element wound on a cruciform frame with a protective Teflon cone. Calculations of true air temperature were made, taking into account the dynamic heating of the air flow during its deceleration on the sensor [1]. The error of true air temperature determination was no more than 0.3 °C during flight segments in clear air or in purely crystalline clouds, and no more than 0.5 °C in clouds with a liquid-droplet fraction.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of wind shear structure and turbulence characteristics in a warm front cloud system using a research aircraft

Volkov

Strunin²,

Kirin³

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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The manuscript presents the results of study vertical and horizontal wind shears, the spectral characteristics of turbulence in the warm front cloud system with using the Yak-42D aircraft-laboratory. Within the As-Cs clouds at altitudes of 3 - 8 km, vertical wind shear increased sharply to 1.5 ms-1 per 100 m. At altitudes of 8 - 9 km, in the jet stream zone, vertical wind shear increased up to significant values of 3.0 ms-1 per 100 m. The maximum horizontal wind shear of 0.3 ms-1 per km was reached in As-Ns clouds at altitudes of 2 - 4 km. Anisotropy of turbulence with a predominance of horizontal wind fluctuations was observed in the stable layer at the altitude of 6000 m. The normalized spectra of the wind speed fluctuations in the lower part of the cloud system (at an altitude of about 3 km) corresponded to the stable layers of the atmosphere. The maximum value of 0.8 at the coherence spectra between the temperature and the vertical wind speed fluctuations was observed at the scales of 1200 m. It is noted that a solid Cs-As-Ns cloud system could be divided into sub-layers, depending on structure of wind shear and turbulence.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigation of wind shear structure and turbulence characteristics in a warm front cloud system using a research aircraft

Volkov

Strunin²,

Kirin³

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…It is obvious that the flight speed of such vehicles is less than the speed of a satellite in space orbit. For example, the flight speed of the Yak-42 [2] is 700 km/ h, the flight altitude is around 10 km. Laboratory "Optician" of V.E.…”

Section: Introductionmentioning

confidence: 99%

Possibility estimation of determining carbon dioxide sources by airborne lidar

Sukhanov

2022

28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics

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The analysis of the reconstructed differential optical depth from simulated IPDA lidar signals when detecting carbon dioxide sources from a low-flying vehicle (such as an airplane) is given, estimates of the limiting capabilities and technical characteristics of a possible lidar system are given. This study was supported by the Ministry of Science and Higher Education of the Russian Federation (V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Sciences).

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The Onboard Data-Acquisition System of Research Aircraft for Studying Atmospheric Processes

et al. 2019

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Onboard instrumentation of the Yak-42D “Roshydromet” new-generation research aircraft for measuring and registering flight parameters and atmospheric thermodynamic parameters

Cited by 7 publications

References 5 publications

Investigation of wind shear structure and turbulence characteristics in a warm front cloud system using a research aircraft

Investigation of wind shear structure and turbulence characteristics in a warm front cloud system using a research aircraft

Possibility estimation of determining carbon dioxide sources by airborne lidar

The Onboard Data-Acquisition System of Research Aircraft for Studying Atmospheric Processes

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