Hemispherically asymmetric volcanic forcing of tropical hydroclimate during
the last millennium

Colose, Christopher M.; LeGrande, Allegra N.; Vuille, Mathias

doi:10.5194/esd-7-681-2016

Articles | Volume 7, issue 3

https://doi.org/10.5194/esd-7-681-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/esd-7-681-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 7, issue 3

Research article

| Highlight paper

|

23 Aug 2016

Research article | Highlight paper |

| 23 Aug 2016

Hemispherically asymmetric volcanic forcing of tropical hydroclimate during the last millennium

Christopher M. Colose, Allegra N. LeGrande, and Mathias Vuille

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Apr 2016	43	8	1	52
May 2016	150	28	0	178
Jun 2016	111	14	2	127
Jul 2016	31	10	2	43
Aug 2016	187	32	2	221
Sep 2016	108	22	2	132
Oct 2016	124	35	3	162
Nov 2016	19	12	1	32
Dec 2016	13	9	2	24
Jan 2017	27	13	1	41
Feb 2017	25	22	2	49
Mar 2017	54	23	6	83
Apr 2017	55	15	8	78
May 2017	47	18	3	68
Jun 2017	46	12	1	59
Jul 2017	24	26	1	51
Aug 2017	13	20	0	33
Sep 2017	18	22	0	40
Oct 2017	26	21	1	48
Nov 2017	202	27	2	231
Dec 2017	70	28	2	100
Jan 2018	34	14	3	51
Feb 2018	29	14	4	47
Mar 2018	23	16	2	41
Apr 2018	16	15	0	31
May 2018	16	15	1	32
Jun 2018	16	11	2	29
Jul 2018	21	15	1	37
Aug 2018	32	14	2	48
Sep 2018	28	13	3	44
Oct 2018	22	20	1	43
Nov 2018	21	19	1	41
Dec 2018	10	9	6	25
Jan 2019	12	8	1	21
Feb 2019	15	6	1	22
Mar 2019	23	17	0	40
Apr 2019	55	14	0	69
May 2019	39	6	0	45
Jun 2019	30	8	1	39
Jul 2019	46	14	0	60
Aug 2019	45	12	2	59
Sep 2019	27	10	0	37
Oct 2019	45	15	0	60
Nov 2019	36	14	0	50
Dec 2019	38	9	1	48
Jan 2020	40	9	0	49
Feb 2020	41	5	1	47
Mar 2020	51	8	1	60
Apr 2020	62	6	0	68
May 2020	68	9	0	77
Jun 2020	70	32	2	104
Jul 2020	58	57	23	138
Aug 2020	48	10	2	60
Sep 2020	80	19	0	99
Oct 2020	52	12	2	66
Nov 2020	44	11	0	55
Dec 2020	80	24	0	104
Jan 2021	99	20	2	121
Feb 2021	62	13	0	75
Mar 2021	54	12	0	66
Apr 2021	56	20	0	76
May 2021	61	12	1	74
Jun 2021	69	9	2	80
Jul 2021	60	30	2	92
Aug 2021	59	28	1	88
Sep 2021	50	14	0	64
Oct 2021	49	53	1	103
Nov 2021	47	32	1	80
Dec 2021	53	18	1	72
Jan 2022	57	26	3	86
Feb 2022	43	13	2	58
Mar 2022	47	18	2	67
Apr 2022	51	14	4	69
May 2022	51	12	1	64
Jun 2022	46	13	1	60
Jul 2022	57	7	2	66
Aug 2022	49	15	1	65
Sep 2022	47	14	1	62
Oct 2022	50	13	2	65
Nov 2022	49	11	0	60
Dec 2022	51	5	2	58
Jan 2023	53	23	2	78
Feb 2023	57	5	2	64
Mar 2023	55	19	5	79
Apr 2023	43	17	0	60
May 2023	61	18	2	81
Jun 2023	69	7	0	76
Jul 2023	52	10	3	65
Aug 2023	68	7	1	76
Sep 2023	218	12	1	231
Oct 2023	279	12	3	294
Nov 2023	253	8	4	265
Dec 2023	38	13	4	55
Jan 2024	17	12	1	30
Feb 2024	18	14	3	35
Mar 2024	18	27	6	51
Apr 2024	29	12	3	44
May 2024	29	11	7	47
Jun 2024	62	19	2	83
Jul 2024	49	15	4	68
Aug 2024	44	2	8	54
Sep 2024	25	9	3	37
Oct 2024	35	11	7	53
Nov 2024	21	14	4	39
Dec 2024	81	37	23	141
Jan 2025	86	43	23	152
Feb 2025	82	34	21	137
Mar 2025	27	21	1	49
Apr 2025	48	32	2	82
May 2025	39	17	0	56
Jun 2025	98	39	3	140
Jul 2025	64	35	5	104
Aug 2025	60	25	2	87
Sep 2025	46	34	1	81
Oct 2025	52	35	2	89
Nov 2025	23	19	0	42

Cumulative views and downloads (calculated since 29 Apr 2016)

Month	HTML	PDF	XML	Total
Apr 2016	43	8	1	52
May 2016	150	28	0	178
Jun 2016	111	14	2	127
Jul 2016	31	10	2	43
Aug 2016	187	32	2	221
Sep 2016	108	22	2	132
Oct 2016	124	35	3	162
Nov 2016	19	12	1	32
Dec 2016	13	9	2	24
Jan 2017	27	13	1	41
Feb 2017	25	22	2	49
Mar 2017	54	23	6	83
Apr 2017	55	15	8	78
May 2017	47	18	3	68
Jun 2017	46	12	1	59
Jul 2017	24	26	1	51
Aug 2017	13	20	0	33
Sep 2017	18	22	0	40
Oct 2017	26	21	1	48
Nov 2017	202	27	2	231
Dec 2017	70	28	2	100
Jan 2018	34	14	3	51
Feb 2018	29	14	4	47
Mar 2018	23	16	2	41
Apr 2018	16	15	0	31
May 2018	16	15	1	32
Jun 2018	16	11	2	29
Jul 2018	21	15	1	37
Aug 2018	32	14	2	48
Sep 2018	28	13	3	44
Oct 2018	22	20	1	43
Nov 2018	21	19	1	41
Dec 2018	10	9	6	25
Jan 2019	12	8	1	21
Feb 2019	15	6	1	22
Mar 2019	23	17	0	40
Apr 2019	55	14	0	69
May 2019	39	6	0	45
Jun 2019	30	8	1	39
Jul 2019	46	14	0	60
Aug 2019	45	12	2	59
Sep 2019	27	10	0	37
Oct 2019	45	15	0	60
Nov 2019	36	14	0	50
Dec 2019	38	9	1	48
Jan 2020	40	9	0	49
Feb 2020	41	5	1	47
Mar 2020	51	8	1	60
Apr 2020	62	6	0	68
May 2020	68	9	0	77
Jun 2020	70	32	2	104
Jul 2020	58	57	23	138
Aug 2020	48	10	2	60
Sep 2020	80	19	0	99
Oct 2020	52	12	2	66
Nov 2020	44	11	0	55
Dec 2020	80	24	0	104
Jan 2021	99	20	2	121
Feb 2021	62	13	0	75
Mar 2021	54	12	0	66
Apr 2021	56	20	0	76
May 2021	61	12	1	74
Jun 2021	69	9	2	80
Jul 2021	60	30	2	92
Aug 2021	59	28	1	88
Sep 2021	50	14	0	64
Oct 2021	49	53	1	103
Nov 2021	47	32	1	80
Dec 2021	53	18	1	72
Jan 2022	57	26	3	86
Feb 2022	43	13	2	58
Mar 2022	47	18	2	67
Apr 2022	51	14	4	69
May 2022	51	12	1	64
Jun 2022	46	13	1	60
Jul 2022	57	7	2	66
Aug 2022	49	15	1	65
Sep 2022	47	14	1	62
Oct 2022	50	13	2	65
Nov 2022	49	11	0	60
Dec 2022	51	5	2	58
Jan 2023	53	23	2	78
Feb 2023	57	5	2	64
Mar 2023	55	19	5	79
Apr 2023	43	17	0	60
May 2023	61	18	2	81
Jun 2023	69	7	0	76
Jul 2023	52	10	3	65
Aug 2023	68	7	1	76
Sep 2023	218	12	1	231
Oct 2023	279	12	3	294
Nov 2023	253	8	4	265
Dec 2023	38	13	4	55
Jan 2024	17	12	1	30
Feb 2024	18	14	3	35
Mar 2024	18	27	6	51
Apr 2024	29	12	3	44
May 2024	29	11	7	47
Jun 2024	62	19	2	83
Jul 2024	49	15	4	68
Aug 2024	44	2	8	54
Sep 2024	25	9	3	37
Oct 2024	35	11	7	53
Nov 2024	21	14	4	39
Dec 2024	81	37	23	141
Jan 2025	86	43	23	152
Feb 2025	82	34	21	137
Mar 2025	27	21	1	49
Apr 2025	48	32	2	82
May 2025	39	17	0	56
Jun 2025	98	39	3	140
Jul 2025	64	35	5	104
Aug 2025	60	25	2	87
Sep 2025	46	34	1	81
Oct 2025	52	35	2	89
Nov 2025	23	19	0	42

Latest update: 17 Nov 2025

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Short summary

A band of intense rainfall exists near the equator known as the intertropical convergence zone, which can migrate in response to climate forcings. Here, we assess such migration in response to volcanic eruptions of varying spatial structure (Northern Hemisphere, Southern Hemisphere, or an eruption fairly symmetric about the equator). We do this using model simulations of the last millennium and link results to energetic constraints and the imprint eruptions may leave behind in past records.