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CNT Parameterization Based on the Observed INP Concentration during Arctic Summer Campaigns in a Marine Environment
| Content Provider | MDPI |
|---|---|
| Author | Cirisan, Ana Girard, Eric Blanchet, Jean-Pierre Keita, Setigui Gong, Wanmin Irish, Vickie Bertram, Allan |
| Copyright Year | 2020 |
| Description | Aerosol–cloud interactions present a large source of uncertainties in atmospheric and climate models. One of the main challenges to simulate ice clouds is to reproduce the right ice nucleating particle concentration. In this study, we derive a parameterization for immersion freezing according to the classical nucleation theory. Our objective was to constrain this parameterization with observations taken over the Canadian Arctic during the Amundsen summer 2014 and 2016 campaigns. We found a linear dependence of contact angle and temperature. Using this approach, we were able to reproduce the scatter in ice nucleated particle concentrations within a factor 5 of observed values with a small negative bias. This parameterization would be easy to implement in climate and atmospheric models, but its representativeness has to first be validated against other datasets. |
| Starting Page | 916 |
| e-ISSN | 20734433 |
| DOI | 10.3390/atmos11090916 |
| Journal | Atmosphere |
| Issue Number | 9 |
| Volume Number | 11 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2020-08-28 |
| Access Restriction | Open |
| Subject Keyword | Atmosphere Atmospheric Sciences Ice Nucleation Aerosol–cloud Interaction Parameterization Amundsen Campaign |
| Content Type | Text |
| Resource Type | Article |
