Remote Analysis of Methane Concentration in the Atmosphere with an IR Lidar System in the 3300–3430 nm Spectral Range

Romanovskii, О. А.; Sadovnikov, S. A.; Kharchenko, О. V.; Yakovlev, S. V.

doi:10.1134/s1024856020020074

Cited by 12 publications

(8 citation statements)

References 22 publications

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“…Elements which are effectively operate in previously created IR lidar systems [15][16] are used in the design of the mobile three-channel lidar for monitoring greenhouse gases in the atmosphere. The lidar model is shown in Figure 5.…”

Section: Model and Principle Of Operating Of The Ir Lidarmentioning

confidence: 99%

Concept of a mobile three-channel IR lidar system for sounding greenhouse gases in the atmosphere

Yakovlev,

Sadovnikov,

Romanovskii

et al. 2023

29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics

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Section: Model and Principle Of Operating Of The Ir Lidarmentioning

confidence: 99%

Concept of a mobile three-channel IR lidar system for sounding greenhouse gases in the atmosphere

Yakovlev,

Sadovnikov,

Romanovskii

et al. 2023

29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics

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“…In the Earth's atmosphere, in addition to the various gases [8][9][10][11] that make up its composition, there is a huge amount of liquid 11 and solid [12][13][14] particles of various natures. In the lower layers of the atmosphere, these are liquid-drop clouds, industrial waste and dust of various structures, and in the upper layers, aircraft emissions and crystal particles of cirrus clouds.…”

Section: Introductionmentioning

confidence: 99%

Light scattering by ice hexagonal tubes calculated within the geometrical optics approximation

Shishko,

Russkova,

Timofeev

et al. 2023

29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics

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Among the ice crystals of cirrus clouds, there are crystals of irregular shape. The imperfection of ice crystals can be both internal (e.g. inclusions such as air bubbles or soot particles) and external (e.g. surface roughness). Advanced studies showed that these imperfections have to be taken into account, because they affect significantly on the single-scattering properties of the ice crystal. The paper presents a solution to the problem of light scattering on ice crystal hexagonal tubes. This particle shape is the simplest model of a particle with internal inclusions. The model was based on the most common shape of a crystal observed in cirrus clouds -a hexagonal column with a ratio of base diameter to height of 0.69, in which a through hole was made, with a variable geometry. The solution was obtained within the geometrical optics approximation for the refractive index of ice 1.3116. The optical characteristics of hexagonal tubes are compared with non-convex particles (hollow columns) available in the database.

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“…Observation of the state of the atmosphere and the underlying surface of the Earth using active remote sensing instruments (such as lidars and radars) installed on spacecraft [15][16][17][18][19][20] make it possible to quickly and globally study climateforming factors and their relationships within the climate system as a whole [21][22][23][24][25][26][27][28][29] .…”

Section: Introductionmentioning

confidence: 99%

Data bank of the optical properties of ice particles of cirrus clouds for interpretation of lidar data of Russian Orbital Station

Shishko,

Konoshonkin,

Tkachev

et al. 2023

29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics

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This paper it is shown that for an effective study of cirrus clouds by the method of laser polarization sensing, it is necessary to have: at least two wavelengths (for example, 0.532 and 1.064 μm); the ability to construct a color ratio for this pair of wavelengths; and the ability to measure the lidar and depolarization ratios at any from wavelengths. The use of a wavelength with strong absorption for ice (for example, 1.55 or 2.15 µm) is demonstrated to be promising for retrieving the average particle size in the cloud. Therefore, the combined use backscatter ratios measured by lidar (color, lidar, and depolarization ratios) demonstrates its effectiveness both in retrieving the shape and size of cirrus cloud particles.

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Remote Analysis of Methane Concentration in the Atmosphere with an IR Lidar System in the 3300–3430 nm Spectral Range

Cited by 12 publications

References 22 publications

Concept of a mobile three-channel IR lidar system for sounding greenhouse gases in the atmosphere

Concept of a mobile three-channel IR lidar system for sounding greenhouse gases in the atmosphere

Light scattering by ice hexagonal tubes calculated within the geometrical optics approximation

Data bank of the optical properties of ice particles of cirrus clouds for interpretation of lidar data of Russian Orbital Station

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