Bacteria in the ECHAM5-HAM global climate model
OPEN ACCESS
Author / Producer
Date
2012
Publication Type
Journal Article
ETH Bibliography
yes
Citations
Altmetric
OPEN ACCESS
Data
Rights / License
Abstract
Some bacteria are among the most active ice nuclei found in nature due to the ice nucleation active proteins on their surface, which serve as active sites for ice nucleation. Their potential impact on clouds and precipitation is not well known and needs to be investigated. Bacteria as a new aerosol species were introduced into the global climate model (GCM) ECHAM5-HAM. The inclusion of bacteria acting as ice nuclei in a GCM leads to only minor changes in cloud formation and precipitation on a global level, however, changes in the liquid water path and ice water path are simulated, specifically in the boreal regions where tundra and forests act as sources of bacteria. Although bacteria contribute to heterogeneous freezing, their impact is reduced by their low numbers compared to other heterogeneous IN. This result confirms the outcome of several previous studies.
Permanent link
Publication status
published
External links
Editor
Book title
Journal / series
Volume
12 (18)
Pages / Article No.
8645 - 8661
Publisher
Copernicus
Event
Edition / version
Methods
Software
Geographic location
Date collected
Date created
Subject
Organisational unit
03690 - Lohmann, Ulrike / Lohmann, Ulrike
Notes
Funding
Related publications and datasets
Is new version of: https://doi.org/10.3929/ethz-b-000044091