Implementation of a comprehensive ice crystal formation parameterization for cirrus and mixed-phase clouds in the EMAC model (based on MESSy 2.53)

Publikationstyp:
Zeitschriftenaufsatz
Metadaten:
Autoren
  • Sara Bacer
  • Sylvia C Sullivan
  • Vlassis A Karydis
  • Donifan Barahona
  • Martina Kraemer
  • Athanasios Nenes
  • Holger Tost
  • Alexandra P Tsimpidi
  • Jos Lelieveld
  • Andrea Pozzer
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000446811700002&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.5194/gmd-11-4021-2018
eISSN
1991-9603
Externe Identifier
  • Clarivate Analytics Document Solution ID: GW3NJ
ISSN
1991-959X
Ausgabe der Veröffentlichung
10
Zeitschrift
GEOSCIENTIFIC MODEL DEVELOPMENT
Paginierung
4021 - 4041
Datum der Veröffentlichung
2018
Status
Published
Titel
Implementation of a comprehensive ice crystal formation parameterization for cirrus and mixed-phase clouds in the EMAC model (based on MESSy 2.53)
Sub types
  • Article
Ausgabe der Zeitschrift
11

Datenquelle: Web of Science (Lite)

Andere Metadatenquellen:
Abstract
<jats:p>Abstract. A comprehensive ice nucleation parameterization has been implemented in the global chemistry-climate model EMAC to improve the representation of ice crystal number concentrations (ICNCs). The parameterization of Barahona and Nenes (2009, hereafter BN09) allows for the treatment of ice nucleation taking into account the competition for water vapour between homogeneous and heterogeneous nucleation in cirrus clouds. Furthermore, the influence of chemically heterogeneous, polydisperse aerosols is considered by applying one of the multiple ice nucleating particle parameterizations which are included in BN09 to compute the heterogeneously formed ice crystals. BN09 has been modified in order to consider the pre-existing ice crystal effect and implemented to operate both in the cirrus and in the mixed-phase regimes. Compared to the standard EMAC parameterizations, BN09 produces fewer ice crystals in the upper troposphere but higher ICNCs in the middle troposphere, especially in the Northern Hemisphere where ice nucleating mineral dust particles are relatively abundant. Overall, ICNCs agree well with the observations, especially in cold cirrus clouds (at temperatures below 205 K), although they are underestimated between 200 and 220 K. As BN09 takes into account processes which were previously neglected by the standard version of the model, it is recommended for future EMAC simulations. </jats:p>
Autoren
  • Sara Bacer
  • Sylvia C Sullivan
  • Vlassis A Karydis
  • Donifan Barahona
  • Martina Krämer
  • Athanasios Nenes
  • Holger Tost
  • Alexandra P Tsimpidi
  • Jos Lelieveld
  • Andrea Pozzer
DOI
10.5194/gmd-11-4021-2018
eISSN
1991-9603
Ausgabe der Veröffentlichung
10
Zeitschrift
Geoscientific Model Development
Sprache
en
Online publication date
2018
Paginierung
4021 - 4041
Status
Published online
Herausgeber
Copernicus GmbH
Herausgeber URL
http://dx.doi.org/10.5194/gmd-11-4021-2018
Datum der Datenerfassung
2020
Titel
Implementation of a comprehensive ice crystal formation parameterization for cirrus and mixed-phase clouds in the EMAC model (based on MESSy 2.53)
Ausgabe der Zeitschrift
11

Datenquelle: Crossref

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