Buffering of Aerosol‐Cloud Adjustments by Coupling Between Radiative Susceptibility and Precipitation Efficiency

Song, Ci; McCoy, Daniel T.; Eidhammer, Trude; Gettelman, Andrew; McCoy, Isabel L.; Watson‐Parris, Duncan; Wall, Casey J.; Elsaesser, Gregory; Wood, Robert

doi:10.1029/2024gl108663

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Buffering of Aerosol‐Cloud Adjustments by Coupling Between Radiative Susceptibility and Precipitation Efficiency

2024
By Song, Ci ; McCoy, Daniel T. ; Eidhammer, Trude ; ...
Source: Geophysical Research Letters, 51(11)

[PDF-1.41 MB]

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Journal Title:

Geophysical Research Letters
Personal Author:

Song, Ci ; McCoy, Daniel T. ; Eidhammer, Trude ; Gettelman, Andrew ; McCoy, Isabel L. ; ... More +

Song, Ci ; McCoy, Daniel T. ; Eidhammer, Trude ; Gettelman, Andrew ; McCoy, Isabel L. ; Watson‐Parris, Duncan ; Wall, Casey J. ; Elsaesser, Gregory ; Wood, Robert Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; CIRES (Cooperative Institute for Research in Environmental Sciences) ; CSL (Chemical Sciences Laboratory)

OAR (Oceanic and Atmospheric Research) ; CIRES (Cooperative Institute for Research in Environmental Sciences) ; CSL (Chemical Sciences Laboratory) Less -
Description:

Aerosol‐cloud interactions (ACI) in warm clouds are the primary source of uncertainty in effective radiative forcing (ERF) during the historical period and, by extension, inferred climate sensitivity. The ERF due to ACI (ERFaci) is composed of the radiative forcing due to changes in cloud microphysics and cloud adjustments to microphysics. Here, we examine the processes that drive ERFaci using a perturbed parameter ensemble (PPE) hosted in CAM6. Observational constraints on the PPE result in substantial constraints in the response of cloud microphysics and macrophysics to anthropogenic aerosol, but only minimal constraint on ERFaci. Examination of cloud and radiation processes in the PPE reveal buffering of ERFaci by the interaction of precipitation efficiency and radiative susceptibility.
Source:

Geophysical Research Letters, 51(11)
DOI:

https://doi.org/10.1029/2024gl108663
ISSN:

0094-8276;1944-8007;
Format:

pdf
Publisher:

American Geophysical Union (AGU)
Document Type:

Journal Article
Funding:

Grant no. NA17OAR4320101 ; Grant no. NA22OAR4320151

Grant no. NA17OAR4320101 ; Grant no. NA22OAR4320151 Less -
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https://creativecommons.org/licenses/by-nc-nd/4.0/
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CC BY-NC-ND
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urn:sha-512:d36466eaa77f5b828c2d6e8ddf84e5bf3b9952119044dc48f69ccba01486c6eac05fdfa22561457978e3c6953d75ce58ddeba31d2cb3ca65016efec4b4b35aed
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Buffering of Aerosol‐Cloud Adjustments by Coupling Between Radiative Susceptibility and Precipitation Efficiency

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