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Spatio-temporal discrimination of molecular, aerosol and cloud scattering and polarization using a combination of a Raman lidar, Doppler cloud radar and microwave radiometer

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cris.lastimport.scopus2024-02-12T19:01:31Z
dc.abstract.enThe combined data from the ESA Mobile Raman Polarization and Water Vapor Lidar (EMORAL), the LATMOS Bistatic Doppler Cloud Radar System for Atmospheric Studies (BASTA), and the INOE Microwave Radiometer (HATPRO-G2) have been used to explore the synergy for the spatio-temporal discrimination of polarization and molecular, aerosol and cloud scattering. The threshold-based methodology is proposed to perform an aerosol-cloud typing using the three instruments. It is demonstrated for 24 hours of observations on 10 June 2019 in Rzecin, Poland. A new scheme for target classification, developed collaboratively by the FUW and the OUC, can help determine molecules, aerosol (spherical, non-spherical, fine, coarse), cloud phase (liquid, ice, supercooled droplets) and precipitation (drizzle, rain). For molecular, aerosol, and cloud discrimination, the thresholds are set on the backward scattering ratio, the linear particle depolarization ratio and the backscatter colour ratio, all calculated from lidar signals. For the cloud phase and precipitation categorization, the thresholds are set on the reflectivity and the Doppler velocity derived from cloud radar signals. For boundary layer particles, precipitation, and supercooled droplets separation, the thresholds are set on the profiles of temperature and relative humidity obtained by the microwave radiometer. The algorithm is able to perform separation even under complicated meteorological situation, as in the presented case study.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorStachlewska, Iwona
dc.contributor.authorSchüttemeyer, Dirk
dc.contributor.authorSong, Xiaoquan
dc.contributor.authorEne, Dragos
dc.contributor.authorDelanoë, Julien
dc.contributor.authorWang, Dongxiang
dc.date.accessioned2024-01-26T07:54:19Z
dc.date.available2024-01-26T07:54:19Z
dc.date.issued2020
dc.description.financeŚrodki finansowe przyznane na realizację projektu w zakresie badań naukowych lub prac rozwojowych
dc.description.number14
dc.description.volume28
dc.identifier.doi10.1364/OE.393625
dc.identifier.issn1094-4087
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/120300
dc.identifier.weblinkhttps://www.osapublishing.org/viewmedia.cfm?URI=oe-28-14-20117&seq=0
dc.languageeng
dc.pbn.affiliationearth and related environmental sciences
dc.relation.ispartofOptics Express
dc.relation.pages20117
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.titleSpatio-temporal discrimination of molecular, aerosol and cloud scattering and polarization using a combination of a Raman lidar, Doppler cloud radar and microwave radiometer
dc.typeJournalArticle
dspace.entity.typePublication