Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

 
 
DownloadE-Mail
  3-D model simulations of dynamical and microphysical interactions in pyroconvective clouds under idealized conditions

Reutter, P., Trentmann, J., Seifert, A., Neis, P., Su, H., Chang, D., et al. (2014). 3-D model simulations of dynamical and microphysical interactions in pyroconvective clouds under idealized conditions. Atmospheric Chemistry and Physics, 14(14), 7573-7583. doi:10.5194/acp-14-7573-2014.

Item is

Externe Referenzen

einblenden:

Urheber

einblenden:
ausblenden:
 Urheber:
Reutter, P.1, Autor
Trentmann, J.1, Autor
Seifert, A.1, Autor
Neis, P.1, Autor
Su, H.2, Autor           
Chang, D.2, Autor           
Herzog, M.1, Autor
Wernli, H.1, Autor
Andreae, M. O.3, Autor           
Pöschl, U.2, Autor           
Affiliations:
1external, ou_persistent22              
2Multiphase Chemistry, Max Planck Institute for Chemistry, Max Planck Society, ou_1826290              
3Biogeochemistry, Max Planck Institute for Chemistry, Max Planck Society, ou_1826286              

Inhalt

einblenden:
ausblenden:
Schlagwörter: -
 Zusammenfassung: Dynamical and microphysical processes in pyroconvective clouds in mid-latitude conditions are investigated using idealized three-dimensional simulations with the Active Tracer High resolution Atmospheric Model (ATHAM). A state-of-the-art two-moment microphysical scheme building upon a realistic parameterization of cloud condensation nuclei (CCN) activation has been implemented in order to study the influence of aerosol concentration on cloud development. The results show that aerosol concentration influences the formation of precipitation. For low aerosol concentrations (N-CN = 200 cm(-3)), rain droplets are rapidly formed by autoconversion of cloud droplets. This also triggers the formation of large graupel and hail particles, resulting in an early onset of precipitation. With increasing aerosol concentration (N-CN = 1000 cm(-3) and N-CN = 20 000 cm(-3)) the formation of rain droplets is delayed due to more but smaller cloud droplets. Therefore, the formation of ice crystals and snowflakes becomes more important for the eventual formation of graupel and hail, which is delayed at higher aerosol concentrations. This results in a delay of the onset of precipitation and a reduction of its intensity with increasing aerosol concentration. This study is the first detailed investigation of the interaction between cloud microphysics and the dynamics of a pyroconvective cloud using the combination of a high-resolution atmospheric model and a detailed microphysical scheme.

Details

einblenden:
ausblenden:
Sprache(n):
 Datum: 2014
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: ISI: 000339934900026
DOI: 10.5194/acp-14-7573-2014
 Art des Abschluß: -

Veranstaltung

einblenden:

Entscheidung

einblenden:

Projektinformation

einblenden:

Quelle 1

einblenden:
ausblenden:
Titel: Atmospheric Chemistry and Physics
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Katlenburg-Lindau, Germany : European Geosciences Union
Seiten: - Band / Heft: 14 (14) Artikelnummer: - Start- / Endseite: 7573 - 7583 Identifikator: ISSN: 1680-7316
CoNE: https://pure.mpg.de/cone/journals/resource/111030403014016