Journal ArticleDOI
Optimal estimation method applied on ceilometer aerosol retrievals
TLDR
In this paper, a Bayesian inversion was used for elastic lidar inversion to retrieve the particle backscatter coefficient or the ratio and the lidar constant under two different frameworks.About:
This article is published in Atmospheric Environment.The article was published on 2021-03-15. It has received 4 citations till now. The article focuses on the topics: Lidar & Ceilometer.read more
Citations
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Retrieval of Temperature From a Multiple Channel Rayleigh-Scatter Lidar Using an Optimal Estimation Method
Robert J. Sica,Alexander Haefele +1 more
TL;DR: In this paper, the authors used an optimal estimation method (OEM) to estimate the temperature in the middle atmosphere with Rayleigh-scatter lidars, which allows a full uncertainty budget to be obtained on a per profile basis that includes, in addition to the statistical uncertainties, the smoothing error and uncertainties due to Rayleigh extinction, ozone absorption, lidar constant, nonlinearity in the counting system, variation of the Rayleigh scatter cross section with altitude, pressure, acceleration due to gravity, and the variation of mean molecular mass with altitude.
Journal ArticleDOI
Retrieval of the aerosol extinction coefficient from scanning Scheimpflug lidar measurements for atmospheric pollution monitoring
TL;DR: In this paper , a comprehensive retrieval method has been proposed and developed for reliable and automatic retrieval of the aerosol extinction coefficient (AEC) from near-horizontal scanning SLidar measurements.
Journal ArticleDOI
Significant decline in aerosols in the mixing layer in Beijing from 2015 to 2020: Effects of regional coordinated air pollution control.
Zhenyu Zhu,Guiqian Tang,Yinghong Wang,Baoxian Liu,Qian Li,Bo Hu,Tingting Li,Weihua Bai,Yuesi Wang +8 more
TL;DR: In this paper , the vertical profile of the atmospheric backscattering coefficient (ABC) was measured by a ceilometer in Beijing from 2015 to 2020, and the results showed that the ABC in Beijing decreased the most at ground level, decreasing 51.4%.
Proceedings ArticleDOI
A stereoscopic approach for cloud base height assessment over an optical ground station
Olivier Liandrat,Guillaume Roussel,Andrés Esteban Bedoya-Velásquez,Romain Ceolato,A. Cautru,Jacques Decroix,Nicolas Schmutz +6 more
TL;DR: In this article , the authors used a pair of thermal sky imagers and stereoscopic methods to estimate the Cloud Base Height (CBH) of a low thin cloud and a high thick cloud.
References
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Book
Inverse Methods for Atmospheric Sounding: Theory and Practice
TL;DR: This book treats the inverse problem of remote sounding comprehensively, and discusses a wide range of retrieval methods for extracting atmospheric parameters of interest from the quantities such as thermal emission that can be measured remotely.
Book ChapterDOI
Clouds and Aerosols
Olivier Boucher,David A. Randall,Paulo Artaxo,Christopher S. Bretherton,Graham Feingold,Piers M. Forster,Veli-Matti Kerminen,Yutaka Kondo,Hong Liao,Ulrike Lohmann,Philip J. Rasch,Sathianeson Satheesh,Steven C. Sherwood,Bjorn Stevens,Xiaoye Zhang +14 more
Journal ArticleDOI
Stable analytical inversion solution for processing lidar returns
TL;DR: A simple analytical method is presented that shows some potential for application to the problem of extracting attenuation and backscatter coefficients in an inhomogeneous atmosphere from the return signal of a monostatic single-wavelength lidar system.
Journal ArticleDOI
Lidar inversion with variable backscatter/extinction ratios.
TL;DR: An alternative formulation is given herein which assumes the proportionality factor in the power law relationship is itself a function of range or extinction, and the resulting lidar equation is solvable.
Journal ArticleDOI
Inversion with regularization for the retrieval of tropospheric aerosol parameters from multiwavelength lidar sounding
Igor Veselovskii,Alexei Kolgotin,Vadim Griaznov,Detlef Müller,Ulla Wandinger,David N. Whiteman +5 more
TL;DR: An inversion algorithm for the retrieval of particle size distribution parameters, i.e., mean (effective) radius, number, surface area, and volume concentration, and complex refractive index from multiwavelength lidar data is presented.