Climate extremes in multi-model simulations   of stratospheric aerosol and marine cloud brightening climate engineering

Aswathy, V. N.; Boucher, O.; Quaas, M.; Niemeier, U.; Muri, H.; Mülmenstädt, J.; Quaas, J.

doi:10.5194/acp-15-9593-2015

Articles | Volume 15, issue 16

https://doi.org/10.5194/acp-15-9593-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

The Geoengineering Model Intercomparison Project (GeoMIP):...

https://doi.org/10.5194/acp-15-9593-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 15, issue 16

Research article

|

27 Aug 2015

Research article |

| 27 Aug 2015

Climate extremes in multi-model simulations of stratospheric aerosol and marine cloud brightening climate engineering

V. N. Aswathy, O. Boucher, M. Quaas, U. Niemeier, H. Muri, J. Mülmenstädt, and J. Quaas

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Month	HTML	PDF	XML	Total
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Jan 2015	182	57	7	246
Feb 2015	39	33	3	75
Mar 2015	35	26	2	63
Apr 2015	70	18	4	92
May 2015	37	11	4	52
Jun 2015	24	9	5	38
Jul 2015	31	10	2	43
Aug 2015	170	58	4	232
Sep 2015	89	67	32	188
Oct 2015	70	29	1	100
Nov 2015	84	41	3	128
Dec 2015	33	24	2	59
Jan 2016	56	30	5	91
Feb 2016	51	19	2	72
Mar 2016	39	16	2	57
Apr 2016	21	19	0	40
May 2016	25	7	0	32
Jun 2016	24	10	1	35
Jul 2016	17	2	3	22
Aug 2016	18	4	1	23
Sep 2016	31	8	1	40
Oct 2016	26	11	0	37
Nov 2016	15	7	0	22
Dec 2016	9	14	0	23
Jan 2017	49	14	0	63
Feb 2017	20	7	1	28
Mar 2017	40	16	2	58
Apr 2017	46	16	1	63
May 2017	36	10	0	46
Jun 2017	50	9	4	63
Jul 2017	37	7	0	44
Aug 2017	15	10	2	27
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Oct 2017	26	17	0	43
Nov 2017	18	10	0	28
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Jan 2018	21	11	0	32
Feb 2018	17	8	1	26
Mar 2018	18	19	2	39
Apr 2018	20	12	0	32
May 2018	28	19	2	49
Jun 2018	32	16	3	51
Jul 2018	26	17	1	44
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Sep 2018	23	14	2	39
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Aug 2019	27	7	0	34
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Oct 2019	27	6	0	33
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Mar 2020	6	4	0	10
Apr 2020	16	6	0	22
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Jun 2020	19	6	0	25
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Apr 2021	14	13	3	30
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Jun 2023	40	8	1	49
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Oct 2023	53	11	1	65
Nov 2023	37	3	0	40
Dec 2023	50	11	5	66
Jan 2024	52	12	1	65
Feb 2024	48	13	1	62
Mar 2024	51	28	4	83
Apr 2024	62	12	3	77
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Jun 2024	64	12	4	80
Jul 2024	51	14	2	67
Aug 2024	52	20	1	73
Sep 2024	21	8	0	29
Oct 2024	34	9	1	44
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Dec 2024	72	15	3	90
Jan 2025	81	32	3	116
Feb 2025	80	13	3	96
Mar 2025	33	12	6	51
Apr 2025	38	19	0	57
May 2025	41	12	0	53
Jun 2025	55	21	2	78
Jul 2025	37	22	2	61
Aug 2025	61	19	3	83
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Oct 2025	42	28	0	70
Nov 2025	11	10	0	21

Cumulative views and downloads (calculated since 21 Dec 2014)

Month	HTML	PDF	XML	Total
Dec 2014	123	188	8	319
Jan 2015	182	57	7	246
Feb 2015	39	33	3	75
Mar 2015	35	26	2	63
Apr 2015	70	18	4	92
May 2015	37	11	4	52
Jun 2015	24	9	5	38
Jul 2015	31	10	2	43
Aug 2015	170	58	4	232
Sep 2015	89	67	32	188
Oct 2015	70	29	1	100
Nov 2015	84	41	3	128
Dec 2015	33	24	2	59
Jan 2016	56	30	5	91
Feb 2016	51	19	2	72
Mar 2016	39	16	2	57
Apr 2016	21	19	0	40
May 2016	25	7	0	32
Jun 2016	24	10	1	35
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Aug 2016	18	4	1	23
Sep 2016	31	8	1	40
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Nov 2016	15	7	0	22
Dec 2016	9	14	0	23
Jan 2017	49	14	0	63
Feb 2017	20	7	1	28
Mar 2017	40	16	2	58
Apr 2017	46	16	1	63
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Jun 2017	50	9	4	63
Jul 2017	37	7	0	44
Aug 2017	15	10	2	27
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Jan 2024	52	12	1	65
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Mar 2024	51	28	4	83
Apr 2024	62	12	3	77
May 2024	33	10	3	46
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Oct 2024	34	9	1	44
Nov 2024	28	7	2	37
Dec 2024	72	15	3	90
Jan 2025	81	32	3	116
Feb 2025	80	13	3	96
Mar 2025	33	12	6	51
Apr 2025	38	19	0	57
May 2025	41	12	0	53
Jun 2025	55	21	2	78
Jul 2025	37	22	2	61
Aug 2025	61	19	3	83
Sep 2025	67	25	4	96
Oct 2025	42	28	0	70
Nov 2025	11	10	0	21

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Short summary

Simulations conducted in the GeoMIP and IMPLICC model intercomparison studies for climate engineering by stratospheric sulfate injection and marine cloud brightening via sea salt are analysed and compared to the reference scenario RCP4.5. The focus is on extremes in surface temperature and precipitation. It is found that the extreme changes mostly follow the mean changes and that extremes are also in general well mitigated, except for in polar regions.