Member Since 1993
Andrew Gettelman
Scientist, Pacific Northwest National Laboratory
AGU Research
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Reassessing Contrail Climate Impacts.
AGU 2024
atmospheric sciences | 13 december 2024
Aaron Sonabend, Rob von Behren, Ken Caldeira, Andr...
Previous studies have shown that airplane condensation trails (contrails) are a significant source of climate forcing. These studies have either estim...
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A Process Level View of Cloud Feedback Sensitivity and the Interaction Between Climate Feedbacks and Forcing
AGU 2024
atmospheric sciences | 12 december 2024
Andrew Gettelman, Trude Eidhammer, Margaret L. Duf...
The biggest uncertainty in the fast response of the climate system to warming the climate with greenhouse gasses is the response of clouds to regional...
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Unraveling the striking difference in causal low-cloud susceptibility to aerosol between GCM and observation
AGU 2024
atmospheric sciences | 11 december 2024
Jianhao Zhang, Yaosheng Chen, Andrew Gettelman, Ta...
Aerosol-cloud interactions (ACI) remain to be the largest source of uncertainty in anthropogenic forcing to the Earths energy budget. While large-scal...
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The Effect of Shipping Emissions Reductions on Recent Radiative Forcing and Temperatures
AGU 2024
global environmental change | 10 december 2024
Andrew Gettelman, Matthew Christensen, Michael Dia...
Ships emit large quantities of sulfur and aerosols, which seed or brighten low marine clouds and result in visible ship tracks. In 2020, new shipping ...
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The STRIVE Earth System Explorer Mission Concept
AGU 2024
atmospheric sciences | 10 december 2024
Lyatt Jaegle, Jun Wang, Luke Oman, Matthew T. DeLa...
We will present the Stratosphere Troposphere Response using Infrared Vertically-resolved light Explorer (STRIVE) mission concept, which was recently s...
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Perturbing Parameters to Understand Cloud Contributions to Climate Change
AGU 2024
global environmental change | 09 december 2024
Margaret L. Duffy, Brian Medeiros, Andrew Gettelma...
The sensitivity of cloud feedbacks to atmospheric model parameters is evaluated using a CAM6 perturbed parameter ensemble (PPE). The CAM6 PPE perturbs...
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Examining state dependence of the cloud feedback using a perturbed parameter ensemble
AGU 2024
global environmental change | 09 december 2024
Jiang Zhu, Bette L. Otto-Bliesner, Esther C. Brady...
Cloud feedback has been identified as one of the most uncertain aspects of climate change. An important challenge of understanding and modeling of the...
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Constraining Aerosol-Cloud Adjustments by Uniting Surface Observations with a Perturbed Parameter Ensemble
AGU 2024
global environmental change | 09 december 2024
August Mikkelsen, Daniel McCoy, Trude Eidhammer, A...
Aerosol-cloud interactions (aci) are the largest source of uncertainty in inferring the magnitude of future warming consistent with the observational ...
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