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dc.contributor.authorWiegner, M.
dc.contributor.authorGasteiger, J.
dc.contributor.authorKandler, K.
dc.contributor.authorWeinzierl, B.
dc.contributor.authorRasp, K.
dc.contributor.authorEsselborn, M.
dc.contributor.authorFreudenthaler, V.
dc.contributor.authorHeese, B.
dc.contributor.authorToledano, C.
dc.contributor.authorTesche, Matthias
dc.contributor.authorAlthausen, D.
dc.identifier.citationWiegner , M , Gasteiger , J , Kandler , K , Weinzierl , B , Rasp , K , Esselborn , M , Freudenthaler , V , Heese , B , Toledano , C , Tesche , M & Althausen , D 2009 , ' Numerical simulations of optical properties of Saharan dust aerosols with emphasis on lidar applications ' , Tellus Series B-Chemical and Physical Meteorology , vol. 61 , no. 1 , pp. 180-194 .
dc.identifier.otherPURE: 8757649
dc.identifier.otherPURE UUID: 76e18f6f-f3dc-4313-8723-716a25efd2a5
dc.identifier.otherScopus: 58849123215
dc.description.abstractIn the framework of the Saharan Mineral Dust Experiment (SAMUM) for the first time the spectral dependence of particle linear depolarization ratios was measured by combining four lidar systems. In this paper these measurements are compared with results from scattering theory based on the T-matrix method. For this purpose, in situ measurements - size distribution, shape distribution and refractive index - were used as input parameters; particle shape was approximated by spheroids. A sensitivity study showed that lidar-related parameters - lidar ratio Sp and linear depolarization ratio δp - are very sensitive to changes of all parameters. The simulated values of the δp are in the range of 20% and 31% and thus in the range of the measurements. The spectral dependence is weak, so that it could not be resolved by the measurements. Calculated lidar ratios based on the measured microphysics and considering equivalent radii up to 7.5μm show a range of possible values between 29 and 50sr at λ = 532 nm. Larger Sp might be possible if the real part of the refractive index is small and the imaginary part is large. A strict validation was however not possible as too many microphysical parameters influence Sp and δp that could not be measured with the required accuracy.en
dc.relation.ispartofTellus Series B-Chemical and Physical Meteorology
dc.subjectAtmospheric Science
dc.titleNumerical simulations of optical properties of Saharan dust aerosols with emphasis on lidar applicationsen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionScience & Technology Research Institute
dc.description.statusPeer reviewed
dc.relation.schoolSchool of Physics, Astronomy and Mathematics
rioxxterms.typeJournal Article/Review

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