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Browsing University of Hertfordshire by Author "Hostetler, Chris A."
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3+2 + X: what is the most useful depolarization input for retrieving microphysical properties of non-spherical particles from lidar measurements using the spheroid model of Dubovik et al. (2006)?
Tesche, Matthias; Kolgotin, Alexei; Haarig, Moritz; Burton, Sharon P.; Ferrare, Richard A.; Hostetler, Chris A.; Mueller, Detlef (2019-08-19)The typical multiwavelength aerosol lidar data set for inversion of optical to microphysical parameters is composed of three backscatter coefficients (β) at 355, 532, and 1064 nm and two extinction coefficients (α) at 355 ... -
Arrange and average algorithm for the retrieval of aerosol parameters from multiwavelength high-spectral-resolution lidar/Raman lidar data
Chemyakin, Eduard V.; Mueller, D.; Burton, Sharon P.; Kolgotin, Alexei V.; Hostetler, Chris A.; Ferrare, Richard A. (2014-10-23)We present the results of a feasibility study in which a simple, automated, and unsupervised algorithm, which we call the arrange and average algorithm, is used to infer microphysical parameters (complex refractive index, ... -
Automated, unsupervised inversion of multiwavelength lidar data with TiARA : Assessment of retrieval performance of microphysical parameters using simulated data
Mueller, Detlef; Chemyakin, Eduard V.; Kolgotin, Alexei V.; Ferrare, Richard A.; Hostetler, Chris A.; Romanov, A. (2019-06-18)We evaluate the retrieval performance of the automated, unsupervised inversion algorithm, Tikhonov Advanced Regularization Algorithm (TiARA), which is used for the autonomous retrieval of microphysical parameters of ... -
HSRL-2 aerosol optical measurements and microphysical retrievals vs. airborne in situ measurements during DISCOVER-AQ 2013: : an intercomparison study
Mueller, Detlef; Sawamura, Patricia; Moore, Richard H.; Burton, Sharon P.; Chemyakin, Edward; Kolgotin, Alexei; Ferrare, Richard A.; Hostetler, Chris A.; Ziemba, Luke D.; Beyersdorf, Andreas J.; Anderson, Bruce E. (2017-06-16)We present a detailed evaluation of remotely-sensed aerosol microphysical properties obtained from an advanced, multi-wavelength High Spectral Resolution Lidar (HSRL-2) during the 2013 NASA DISCOVER-AQ field campaign. ... -
Retrieval of aerosol parameters from multiwavelength lidar : Investigation of underlying inverse mathematical problem
Chemyakin, Eduard V.; Burton, Sharon P.; Kolgotin, Alexei; Mueller, D.; Hostetler, Chris A.; Ferrare, Richard A. (2016-03-16)We present an investigation of some important mathematical and numerical features related to the retrieval of microphysical parameters (complex refractive index, single-scattering albedo, effective radius, total number, ... -
Vertical structure of biomass burning aerosol transported over the southeast Atlantic Ocean
Harshvardhan, Harshvardhan; Ferrare, Richard A.; Burton, Sharon P.; Hair, J. W.; Hostetler, Chris A.; Harper, David B.; Cook, Anthony; Fenn, Martha A.; Scarino, Amy Jo; Chemyakin, Eduard V.; Müller, Detlef (2022-08-03)Biomass burning in southwestern Africa produces smoke plumes that are transported over the Atlantic Ocean and overlie vast regions of stratocumulus clouds. This aerosol layer contributes to direct and indirect radiative ...