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Quantitative Measurement of the Microphysical and Optical Properties of Cirrus clouds with Four Different in Situ Probes: Evidence of Small Ice Crystals

Gayet, J.-F. and Auriol, F. and Minikin, A. and Ström, J. and Seifert, M. and Krejci, R. and Petzold, A. and Febvre. G., and Schumann, U. (2002) Quantitative Measurement of the Microphysical and Optical Properties of Cirrus clouds with Four Different in Situ Probes: Evidence of Small Ice Crystals. Geophysical Research Letters, 29, pp. 1-4. DOI: 10.1029/2001GL014342

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Official URL: http://www.agu.org/journals/gl/

Abstract

Original microphysical and optical measurements were obtained in cirrus clouds on the Southern and Northern hemispheres during the INCA experiments using four independent techniques: (1) the Counterflow Virtual Impactor, (2) the PMS FSSP-300, (3) the PMS 2D-C and (4) the Polar Nephelometer probes. The combination of these four techniques provides a description of particles within a diameter range varying from a few micrometers (typically 3 μm) to 800 μm. Because of the presence of small ice crystals in cirrus clouds, it is particularly important to overcome the limited accuracy of the sensors used in the experiments for the cloud microphysical measurements. Representative examples of combined results suggest that the available measurements are reliable and can be used for the ongoing comparison between the results from the SH and NH campaigns. The results give the definite picture that the observations of numerous (5 to 10 cm<sup>-3</sup>) small ice crystals in cirrus clouds are a relatively common microphysical feature.

Item URL in elib:https://elib.dlr.de/9723/
Document Type:Article
Title:Quantitative Measurement of the Microphysical and Optical Properties of Cirrus clouds with Four Different in Situ Probes: Evidence of Small Ice Crystals
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Gayet, J.-F.Univ. Blaise Pascal, Clermont-Ferrand, FUNSPECIFIED
Auriol, F.Univ. Blaise Pascal, Clermont-Ferrand, FUNSPECIFIED
Minikin, A.UNSPECIFIEDUNSPECIFIED
Ström, J.Univ. Stockholm, SUNSPECIFIED
Seifert, M.Univ. Stockholm, SUNSPECIFIED
Krejci, R.Univ. Stockholm, SUNSPECIFIED
Petzold, A.UNSPECIFIEDUNSPECIFIED
Febvre. G., Univ. Blaise Pascal, Clermont-Ferrand, FUNSPECIFIED
Schumann, U.UNSPECIFIEDUNSPECIFIED
Date:2002
Journal or Publication Title:Geophysical Research Letters
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:29
DOI :10.1029/2001GL014342
Page Range:pp. 1-4
Status:Published
Keywords:Aerosole, Cirrus, Experiment
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:L VU - Air Traffic and Environment (old)
DLR - Research area:Aeronautics
DLR - Program:L VU - Air Traffic and Environment
DLR - Research theme (Project):L - Low-Emission Air Traffic (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics
Deposited By: Löb, Ute
Deposited On:29 Jan 2008
Last Modified:31 Jul 2019 19:14

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