Show simple item record

dc.contributor.author
Schäuble, D.
dc.contributor.author
Voigt, Christiane
dc.contributor.author
Kärcher, Bernd
dc.contributor.author
Stock, P.
dc.contributor.author
Schlager, Hans
dc.contributor.author
Krämer, M.
dc.contributor.author
Schiller, Cornelius
dc.contributor.author
Bauer, Reimar
dc.contributor.author
Spelten, Nicole
dc.contributor.author
De Reus, Marian
dc.contributor.author
Szakáll, M.
dc.contributor.author
Borrmann, Stephan
dc.contributor.author
Weers, Uwe
dc.contributor.author
Peter, Thomas
dc.date.accessioned
2018-09-25T14:36:30Z
dc.date.available
2017-06-14T11:58:01Z
dc.date.available
2018-09-25T14:36:30Z
dc.date.issued
2009
dc.identifier.issn
1680-7375
dc.identifier.issn
1680-7367
dc.identifier.other
10.5194/acp-9-8189-2009
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/157194
dc.identifier.doi
10.3929/ethz-b-000157194
dc.description.abstract
This study reports the first systematic measurements of nitric acid (HNO3) uptake in contrail ice particles at typical aircraft cruise altitudes. During the CIRRUS-III campaign cirrus clouds and almost 40 persistent contrails were probed with in situ instruments over Germany and Northern Europe in November 2006. Besides reactive nitrogen, water vapor, cloud ice water content, ice particle size distributions, and condensation nuclei were measured during 6 flights. Contrails with ages up to 12 h were detected at altitudes 10–11.5 km and temperatures 211–220 K. These contrails had a larger ice phase fraction of total nitric acid (HNO3ice/HNO3tot = 6%) than the ambient cirrus layers (3%). On average, the contrails contained twice as much HNO3ice as the cirrus clouds, 14 pmol/mol and 6 pmol/mol, respectively. Young contrails with ages below 1 h had a mean HNO3ice of 21 pmol/mol. The contrails had higher nitric acid to water molar ratios in ice and slightly higher ice water contents than the cirrus clouds under similar meteorological conditions. The differences in ice phase fractions and molar ratios between developing contrails and cirrus are likely caused by high plume concentrations of HNO3 prior to contrail formation. The location of the measurements in the upper region of frontal cirrus layers might account for slight differences in the ice water content between contrails and adjacent cirrus clouds. The observed dependence of molar ratios as a function of the mean ice particle diameter suggests that ice-bound HNO3 concentrations are controlled by uptake of exhaust HNO3 in the freezing plume aerosols in young contrails and subsequent trapping of ambient HNO3 in growing ice particles in older (age > 1 h) contrails.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Copernicus
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/3.0/
dc.title
Airborne measurements of the nitric acid partitioning in persistent contrails
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 3.0 Unported
dc.date.published
2009-11-02
ethz.journal.title
Atmospheric Chemistry and Physics
ethz.journal.volume
9
en_US
ethz.journal.issue
21
en_US
ethz.journal.abbreviated
Atmos. chem. phys.
ethz.pages.start
8189
en_US
ethz.pages.end
8197
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.nebis
004294181
ethz.publication.place
Göttingen
en_US
ethz.publication.status
published
en_US
ethz.date.deposited
2017-06-14T12:06:30Z
ethz.source
ECIT
ethz.identifier.importid
imp59364ce2c654c28964
ethz.ecitpid
pub:35493
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-07-12T22:41:37Z
ethz.rosetta.lastUpdated
2018-09-25T14:36:34Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.atitle=Airborne%20measurements%20of%20the%20nitric%20acid%20partitioning%20in%20persistent%20contrails&rft.jtitle=Atmospheric%20Chemistry%20and%20Physics&rft.date=2009&rft.volume=9&rft.issue=21&rft.spage=8189&rft.epage=8197&rft.issn=1680-7375&1680-7367&rft.au=Sch%C3%A4uble,%20D.&Voigt,%20Christiane&K%C3%A4rcher,%20Bernd&Stock,%20P.&Schlager,%20Hans&rft.genre=article&
 Search via SFX

Files in this item

Thumbnail

Publication type

Show simple item record