Technique for comparison of backscatter coefficients derived from in situ cloud probe measurements with concurrent airborne lidar

Abstract + + ∘ C for water droplet analysis, and - - ∘ C for ice particle analysis. Backscatter coefficients derived from external cloud probes (ECP) are correlated (0.91) with measurements by an airborne lidar system known as the Optical Ice Detector (OID). Differences between OID and ECP backscatter coefficients range from less than 1 to over 3 standard deviations in terms of uncertainties. The backscatter coefficients are mostly in agreement for liquid clouds and are in disagreement for the - - ∘ C cases, with ECP-derived backscatter coefficients lower than the OID for three out of the four cases. Measurements over four 60 s research flight segments show that measured total water content is correlated (0.74) with the OID backscatter coefficient, which indicates that the OID is a useful instrument for determining ice particle concentrations over a broad range of environments, including at ice water contents as low as 0.02 g m- 3. Additionally, concurrent measurements from cloud imaging probes and the OID provide improved knowledge of cloud conditions, which may help in understanding cloud processes.

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• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: Technique for comparison of backscatter coefficients derived from in situ cloud probe measurements with concurrent airborne lidar ; volume:15 ; number:21 ; year:2022 ; pages:6447-6466 ; extent:20 ; Atmospheric measurement techniques ; 15, Heft 21 (2022), 6447-6466 (gesamt 20)

Contributors, Places and Time

• Creator: Wagner, Shawn Wendell ; Delene, David James

Further information

• DOI: 10.5194/amt-15-6447-2022
• URN: urn:nbn:de:101:1-2022111704331120000866
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.