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Microphysical properties of contrails and natural cirrus clouds

Abstract

The radiative properties of a condensation trail (contrail) are determined by its microphysical properties. Therefore an understanding of the concentration, size distribution, and shapes of the particles is necessary for an estimation of the climatic impact of contrails. In-situ particle measurements by use of an ice replicator are presented for several contrail and cirrus events. Contrail particles aged about 2 minutes show shapes which are nearly spherical. Typical sizes are 5 to 10 {mu}m. Concentration values reach up to the order of 1000 cm{sup -3}. Aged contrail size distributions are within the variability of those found in natural cirrus clouds. (author) 2 refs.
Authors:
Strauss, B; Wendling, P [1] 
  1. Deutsche Forschungsanstalt fuer Luft- und Raumfahrt e.V., Oberpfaffenhofen (Germany)
Publication Date:
Dec 31, 1997
Product Type:
Conference
Report Number:
ONERA-97-Vol.1; CONF-9610234-
Reference Number:
SCA: 580000; 540110; PA: FRC-98:000118; EDB-98:076900; SN: 98001913088
Resource Relation:
Conference: International colloquium: Impact of aircraft emissions upon the atmosphere, Paris (France), 15-18 Oct 1996; Other Information: PBD: 1997; Related Information: Is Part Of Proceedings of impact of aircraft emissions upon the atmosphere. V. 1; PB: [381] p.
Subject:
58 GEOSCIENCES; 54 ENVIRONMENTAL SCIENCES; AIRCRAFT; CONDENSATES; PARTICLES; CLIMATIC CHANGE; CLOUDS; PARTICLE SIZE; ICE
OSTI ID:
623594
Research Organizations:
Office National d`Etudes et de Recherches Aerospatiales (ONERA), 92 - Chatillon (France)
Country of Origin:
France
Language:
English
Other Identifying Numbers:
Other: ON: DE98731902; TRN: FR9800118
Availability:
OSTI as DE98731902
Submitting Site:
FR
Size:
pp. 155-158
Announcement Date:

Citation Formats

Strauss, B, and Wendling, P. Microphysical properties of contrails and natural cirrus clouds. France: N. p., 1997. Web.
Strauss, B, & Wendling, P. Microphysical properties of contrails and natural cirrus clouds. France.
Strauss, B, and Wendling, P. 1997. "Microphysical properties of contrails and natural cirrus clouds." France.
@misc{etde_623594,
title = {Microphysical properties of contrails and natural cirrus clouds}
author = {Strauss, B, and Wendling, P}
abstractNote = {The radiative properties of a condensation trail (contrail) are determined by its microphysical properties. Therefore an understanding of the concentration, size distribution, and shapes of the particles is necessary for an estimation of the climatic impact of contrails. In-situ particle measurements by use of an ice replicator are presented for several contrail and cirrus events. Contrail particles aged about 2 minutes show shapes which are nearly spherical. Typical sizes are 5 to 10 {mu}m. Concentration values reach up to the order of 1000 cm{sup -3}. Aged contrail size distributions are within the variability of those found in natural cirrus clouds. (author) 2 refs.}
place = {France}
year = {1997}
month = {Dec}
}