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Aerosol backscatter profiles from ceilometers: validation of water vapor correction in the framework of CeiLinEx2015

Wiegner, Matthias; Mattis, Ina; Pattantyús-Ábrahám, Margit; Bravo-Aranda, Juan Antonio; Poltera, Yann; Haefele, Alexander; Hervo, Maxime; Görsdorf, Ulrich; Leinweber, Ronny; Gasteiger, Josef; Haeffelin, Martial; Wagner, Frank; Cermak, Jan; Komínková, Katerina; Brettle, Mike; Münkel, Christoph; Pönitz, Kornelia

With the rapidly growing number of automated single-wavelength backscatter lidars (ceilometers), their potential benefit for aerosol remote sensing received considerable scientific attention. When studying the accuracy of retrieved particle backscatter coefficients, it must be considered that most of the ceilometers are influenced by water vapor absorption in the spectral range around 910 nm. In the literature methodologies have been proposed to correct for this effect; however, a validation was not yet performed. In the framework of the ceilometer intercomparison campaign CeiLinEx2015 in Lindenberg, Germany, hosted by the German Weather Service, it was possible to tackle this open issue. Ceilometers from Lufft (CHM15k and CHM15kx, operating at 1064 nm), from Vaisala (CL51 and CL31) and from Campbell Scientific (CS135), all operating at a wavelength of approximately 910 nm, were deployed together with a multi-wavelength research lidar (RALPH) that served as a reference. In this paper the validation of the water vapor correction is performed by comparing ceilometer backscatter signals with measurements of the reference system extrapolated to the water vapor regime. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000090236
Veröffentlicht am 28.01.2019
DOI: 10.5194/amt-12-471-2019
Zitationen: 8
Web of Science
Zitationen: 8
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung - Atmosphärische Spurenstoffe und Fernerkundung (IMK-ASF)
Institut für Meteorologie und Klimaforschung - Forschungsbereich Troposphäre (IMK-TRO)
Institut für Photogrammetrie und Fernerkundung (IPF)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2019
Sprache Englisch
Identifikator ISSN: 1867-8548
KITopen-ID: 1000090236
HGF-Programm 12.01.01 (POF III, LK 01) Clouds in a pertubed atmosphere
Erschienen in Atmospheric measurement techniques
Verlag Copernicus Publications
Band 12
Heft 1
Seiten 471–490
Vorab online veröffentlicht am 25.01.2019
Nachgewiesen in Web of Science
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