A5022694573- Atmospheric aerosols and clouds
- Atmospheric chemistry and aerosols
- Atmospheric and Environmental Gas Dynamics
- Atmospheric Ozone and Climate
- Fire effects on ecosystems
- Aeolian processes and effects
- Spectroscopy and Laser Applications
- Air Quality and Health Impacts
- Remote Sensing in Agriculture
- Calibration and Measurement Techniques
- Surface Roughness and Optical Measurements
- Ionosphere and magnetosphere dynamics
- Remote Sensing and LiDAR Applications
Prokhorov General Physics Institute
2014-2024
Vavilov Institute of General Genetics
2020
Troitsk Institute for Innovation and Fusion Research
2016
Far Eastern Federal University
2015-2016
Abstract. West Africa and the adjacent oceanic regions are very important locations for studying dust properties their influence on weather climate. The SHADOW (study of SaHAran Dust Over Africa) campaign is performing a multiscale multilaboratory study aerosol dynamics using set in situ remote sensing instruments at an observation site located IRD (Institute Research Development) Mbour, Senegal (14° N, 17° W). In this paper, we present results lidar measurements performed during first phase...
Abstract. To study the feasibility of a fluorescence lidar for aerosol characterization, channel is added to LILAS multiwavelength Mie–Raman Lille University, France. A part spectrum induced by 355 nm laser radiation selected interference filter 44 bandwidth centered at 466 nm. Such an approach has proved have high sensitivity, allowing signals from weak layers be detected and backscattering coefficient ratio nitrogen Raman backscatters calculated. Observations were performed during November...
Abstract. The multiwavelength Mie–Raman–fluorescence lidar of the University Lille has capability to measure three aerosol backscattering coefficients, two extinction coefficients and linear depolarization ratios, together with fluorescence at 466 nm. It was used characterize aerosols during pollen season in north France for period March–June 2020. results observations demonstrate that presence grains mixture leads an increase ratio. Moreover, ratio exhibits a strong spectral dependence...
Abstract. An algorithm for linear estimation of aerosol bulk properties such as particle volume, effective radius and complex refractive index from multiwavelength lidar measurements is presented. The approach uses the fact that total concentration can well be approximated a combination characteristics measured by multi-wavelength lidar. Therefore, estimated without need to derive size distribution, which entails more sophisticated procedures. definition coefficients required estimates based...
Abstract. Vibrational Raman scattering from nitrogen is commonly used in aerosol lidars for evaluation of particle backscattering (β) and extinction (α) coefficients. However, at mid-visible wavelengths, particularly the daytime, previous measurements have possessed low signal-to-noise ratio. Also, vibrational characterized by a significant frequency shift component, so calculation α β information about Ångström exponent needed. Simulation results presented this study demonstrate that...
Abstract. The multi-wavelength lidar technique was applied to the study of a smoke event near Washington, DC on 26–28 August 2013. Satellite observations combined with transport model predictions imply that plume originated mainly from Wyoming/Idaho forest fires and its transportation took approximately 5 days. NASA Goddard Space Flight Center (GSFC) Mie–Raman used measure particle intensive parameters such as extinction backscatter Ångström exponents together ratios at 355 532 nm...
Abstract. The Taklamakan desert is an important dust source for the global atmospheric budget and a cause of weather in East Asia. characterization region still very limited. To fill this gap, DAO (dust aerosol observation) was conducted April 2019 Kashi, China. Kashi site about 150 km from western rim strongly impacted by aerosols, especially spring time, i.e., May. According to sun–sky photometer measurements, optical depth (at 500 nm) varied range 0.07–4.70, Ångström exponent (between 440...
Abstract. Observations of multiwavelength Mie–Raman lidar taken during the SHADOW field campaign are used to analyze a smoke–dust episode over West Africa on 24–27 December 2015. For case considered, dust layer extended from ground up approximately 2000 m while elevated smoke occurred in 2500–4000 range. The profiles measured backscattering, extinction coefficients, and depolarization ratios compared with vertical distribution aerosol parameters provided by Modern-Era Retrospective Analysis...
Abstract. Aerosol particles are important and highly variable components of the terrestrial atmosphere, they affect both air quality climate. In order to evaluate their multiple impacts, most requirement is precisely measure characteristics. Remote sensing technologies such as lidar (light detection ranging) sun/sky photometers powerful tools for determining aerosol optical microphysical properties. our work, we applied several methods joint or separate sun/sky-photometer data retrieve The...
Abstract. Measurements performed in western Africa (Senegal) during the SHADOW field campaign are analyzed to show that spectral dependence of imaginary part complex refractive index (CRI) dust can be revealed by lidar-measured particle parameters. Observations April 2015 provide good opportunity for such study, because, due high optical depth dust, exceeding 0.5, extinction coefficient could derived from lidar measurements with accuracy and contribution other aerosol types, as biomass...
Abstract. The fluorescence lidar at the Prokhorov General Physics Institute (Moscow) was utilized to study smoke transported over Atlantic during wildfire season from May September 2023. system, which is based on a tripled Nd : YAG laser, performs measurements across five spectral intervals centered wavelengths of 438, 472, 513, 560 and 614 nm. This configuration enables assessment dependence backscattering broad range altitudes, planetary boundary layer (PBL) middle upper troposphere (MUT)....
Abstract. In this work we study the effects of systematic and random errors on inversion multiwavelength (MW) lidar data using well-known regularization technique to obtain vertically resolved aerosol microphysical properties. The software implementation used here was developed at Physics Instrumentation Center (PIC) in Troitsk (Russia) conjunction with NASA/Goddard Space Flight Center. Its applicability Raman systems based backscattering measurements three wavelengths (355, 532 1064 nm)...
Abstract. The results of the application linear estimation technique to multiwavelength Raman lidar measurements performed during summer 2011 in Greenbelt, MD, USA, are presented. We demonstrate that lidars capable not only providing vertical profiles particle properties but also revealing spatio-temporal evolution aerosol features. nighttime 3β + 1α on 21 and 22 July were inverted distributions microphysical parameters, such as volume, number density, effective radius complex refractive...
Abstract. Polarization properties of the fluorescence induced by polarized laser radiation are widely considered in laboratory studies. In lidar observations, however, only total backscattered power is analyzed. this paper we present results obtained with a modified Mie–Raman–fluorescence operated at ATOLL observatory, Laboratoire d'Optique Atmosphérique, University Lille, France, allowing us to measure depolarization ratios 466 nm (δF) and water vapor Raman backscatter. Measurements were...
Abstract. This work deals with the applicability of linear estimation technique (LE) to invert spectral measurements aerosol optical depth (AOD) provided by AERONET CIMEL sun photometers. The inversion particle properties using only direct-sun AODs allows evaluation parameters such as effective radius (reff) and columnar volume content (V) significantly better temporal resolution than operational algorithm which requires both direct sky radiance measurements. Sensitivity studies performed...
Abstract. A remote sensing method, based on fluorescence lidar measurements, that allows to detect and quantify the smoke content in upper troposphere lower stratosphere (UTLS) is presented. The unique point of this approach that, cirrus properties are observed same air volume simultaneously. In article, we provide results multiwavelength Mie-Raman measurements performed at ATOLL observatory from Laboratoire d’Optique Atmosphérique, University Lille, during strong episodes summer autumn...
Abstract. A remote sensing method, based on fluorescence lidar measurements, that allows us to detect and quantify the smoke content in upper troposphere lower stratosphere (UTLS) is presented. The unique point of this approach cirrus properties are observed same air volume simultaneously. In article, we provide results multiwavelength Mie–Raman measurements performed at ATOLL (ATmospheric Observation liLLe) observatory from Laboratoire d'Optique Atmosphérique, University Lille, during...
Abstract. Aerosol particles are important and highly variable components of the terrestrial atmosphere, they affect both air quality climate. In order to evaluate their multiple impacts, most requirement is precisely measure characteristics. Remote sensing technologies such as LIDAR (LIght Detection And Ranging) sun/sky-photometers powerful tools for determining aerosol optical microphysical properties. our work, we applied several methods joint or separate sun/sky-photometer data retrieve...
Abstract. In this work we study the effects of systematic and random errors on inversion multi-wavelength (MW) lidar data, using well-known regularization technique, to obtain vertically-resolved aerosol microphysical properties. The software implementation used here was developed at Physics Instrumentation Center (PIC) in Troitsk (Russia) conjunction with NASA/Goddard Space Flight Center. Its applicability Raman systems based backscattering measurements three wavelengths (355, 532 1064 nm)...
Abstract. West Africa and the adjacent oceanic regions are very important locations for studying dust properties their influence on weather climate. The SHADOW (Study of SaHAran Dust Over Africa) campaign is performing a multi-scale multi-laboratory study aerosol dynamics using set in situ remote sensing instruments at an observation site located IRD (Institute Research Development) Center, Mbour, Senegal (14° N, 17° W). In this paper, we present results lidar measurements performed during...
We analyze the solution space of 3β+2α optical data inferred from lidar measurements, i.e., backscatter coefficients at three wavelengths and extinction two wavelengths. These are governed by microphysical parameters that can be expressed in terms particle size distribution, effective radius, complex refractive index (CRI). In our analysis, we consider scenarios space. First, it monomodal distributions represented either fine modes or coarse modes. Secondly, contain a mode as well mode....
Abstract. An algorithm for linear estimation of aerosol bulk properties such as particle volume, effective radius and complex refractive index from multiwavelength lidar measurements is presented. The approach uses the fact that total concentration can well be approximated a combination characteristics measured by multi-wavelength lidar. Therefore, estimated without need to derive size distribution, which entails more sophisticated procedures. definition coefficients required estimates based...