Signatures of aerosol-cloud interactions in GiOcean:  a coupled global reanalysis with  two-moment cloud microphysics

Song, Ci; McCoy, Daniel; Molod, Andrea; Aerenson, Travis; Barahona, Donifan

doi:10.5194/acp-25-15567-2025

Articles | Volume 25, issue 21

https://doi.org/10.5194/acp-25-15567-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-25-15567-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 25, issue 21

Research article

|

13 Nov 2025

Research article |

| 13 Nov 2025

Signatures of aerosol-cloud interactions in GiOcean: a coupled global reanalysis with two-moment cloud microphysics

Ci Song, Daniel McCoy, Andrea Molod, Travis Aerenson, and Donifan Barahona

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Month	HTML	PDF	XML	Total
Jan 2025	160	46	10	216
Feb 2025	84	22	6	112
Mar 2025	26	16	4	46
Apr 2025	38	6	2	46
May 2025	42	8	4	54
Jun 2025	38	10	8	56
Jul 2025	30	16	2	48
Aug 2025	216	6	0	222
Sep 2025	1,012	10	4	1,026
Oct 2025	58	24	2	84
Nov 2025	359	102	16	477
Dec 2025	194	55	21	270
Jan 2026	990	75	17	1,082
Feb 2026	454	60	9	523
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Apr 2026	67	61	8	136
May 2026	14	12	0	26

Cumulative views and downloads (calculated since 15 Jan 2025)

Month	HTML	PDF	XML	Total
Jan 2025	160	46	10	216
Feb 2025	84	22	6	112
Mar 2025	26	16	4	46
Apr 2025	38	6	2	46
May 2025	42	8	4	54
Jun 2025	38	10	8	56
Jul 2025	30	16	2	48
Aug 2025	216	6	0	222
Sep 2025	1,012	10	4	1,026
Oct 2025	58	24	2	84
Nov 2025	359	102	16	477
Dec 2025	194	55	21	270
Jan 2026	990	75	17	1,082
Feb 2026	454	60	9	523
Mar 2026	84	71	11	166
Apr 2026	67	61	8	136
May 2026	14	12	0	26

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Short summary

Uncertainty in how clouds respond to aerosols limits predictions of future warming. This study uses GiOcean, a global reanalysis with detailed cloud microphysics to represent aerosol–cloud interactions (ACI). We assess warm cloud responses by comparing variables important for ACI between GiOcean and satellite observations and further evaluate changes in cloud properties using a source–sink budget framework.