Evaluation of UTLS carbon monoxide simulations in GMI and GEOS-Chem chemical  transport models using Aura MLS observations

Huang, Lei; Jiang, Jonathan H.; Murray, Lee T.; Damon, Megan R.; Su, Hui; Livesey, Nathaniel J.

doi:10.5194/acp-16-5641-2016

Articles | Volume 16, issue 9

https://doi.org/10.5194/acp-16-5641-2016

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

https://doi.org/10.5194/acp-16-5641-2016

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

Articles | Volume 16, issue 9

Research article

|

09 May 2016

Research article |

| 09 May 2016

Evaluation of UTLS carbon monoxide simulations in GMI and GEOS-Chem chemical transport models using Aura MLS observations

Lei Huang, Jonathan H. Jiang, Lee T. Murray, Megan R. Damon, Hui Su, and Nathaniel J. Livesey

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Mar 2016	38	14	0	52
Apr 2016	32	7	0	39
May 2016	159	41	1	201
Jun 2016	20	12	1	33
Jul 2016	20	8	4	32
Aug 2016	16	13	0	29
Sep 2016	12	6	0	18
Oct 2016	15	5	0	20
Nov 2016	7	2	0	9
Dec 2016	4	2	0	6
Jan 2017	17	3	1	21
Feb 2017	10	1	0	11
Mar 2017	15	6	1	22
Apr 2017	26	14	0	40
May 2017	25	10	0	35
Jun 2017	20	4	1	25
Jul 2017	26	10	1	37
Aug 2017	10	7	0	17
Sep 2017	8	6	2	16
Oct 2017	13	11	0	24
Nov 2017	13	11	0	24
Dec 2017	10	10	0	20
Jan 2018	11	16	0	27
Feb 2018	16	11	1	28
Mar 2018	10	15	0	25
Apr 2018	8	13	0	21
May 2018	9	13	1	23
Jun 2018	5	16	0	21
Jul 2018	7	13	0	20
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Oct 2019	10	12	2	24
Nov 2019	7	7	0	14
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Jan 2020	9	6	0	15
Feb 2020	11	4	1	16
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Feb 2023	14	7	1	22
Mar 2023	14	8	0	22
Apr 2023	6	9	0	15
May 2023	29	13	1	43
Jun 2023	36	3	0	39
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Feb 2024	44	15	0	59
Mar 2024	37	23	3	63
Apr 2024	44	10	5	59
May 2024	17	14	1	32
Jun 2024	13	8	1	22
Jul 2024	15	19	3	37
Aug 2024	19	7	3	29
Sep 2024	4	6	0	10
Oct 2024	15	6	1	22
Nov 2024	8	3	2	13
Dec 2024	6	7	1	14
Jan 2025	14	5	2	21
Feb 2025	23	13	7	43
Mar 2025	12	11	4	27
Apr 2025	13	21	0	34
May 2025	16	2	0	18
Jun 2025	38	10	1	49
Jul 2025	27	20	2	49
Aug 2025	44	29	0	73
Sep 2025	34	11	2	47
Oct 2025	15	32	0	47
Nov 2025	26	22	5	53

Cumulative views and downloads (calculated since 15 Feb 2016)

Month	HTML	PDF	XML	Total
Feb 2016	129	55	6	190
Mar 2016	38	14	0	52
Apr 2016	32	7	0	39
May 2016	159	41	1	201
Jun 2016	20	12	1	33
Jul 2016	20	8	4	32
Aug 2016	16	13	0	29
Sep 2016	12	6	0	18
Oct 2016	15	5	0	20
Nov 2016	7	2	0	9
Dec 2016	4	2	0	6
Jan 2017	17	3	1	21
Feb 2017	10	1	0	11
Mar 2017	15	6	1	22
Apr 2017	26	14	0	40
May 2017	25	10	0	35
Jun 2017	20	4	1	25
Jul 2017	26	10	1	37
Aug 2017	10	7	0	17
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Nov 2017	13	11	0	24
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Feb 2023	14	7	1	22
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Apr 2023	6	9	0	15
May 2023	29	13	1	43
Jun 2023	36	3	0	39
Jul 2023	45	5	0	50
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Sep 2023	37	6	1	44
Oct 2023	39	8	2	49
Nov 2023	24	1	0	25
Dec 2023	42	8	0	50
Jan 2024	42	4	1	47
Feb 2024	44	15	0	59
Mar 2024	37	23	3	63
Apr 2024	44	10	5	59
May 2024	17	14	1	32
Jun 2024	13	8	1	22
Jul 2024	15	19	3	37
Aug 2024	19	7	3	29
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Dec 2024	6	7	1	14
Jan 2025	14	5	2	21
Feb 2025	23	13	7	43
Mar 2025	12	11	4	27
Apr 2025	13	21	0	34
May 2025	16	2	0	18
Jun 2025	38	10	1	49
Jul 2025	27	20	2	49
Aug 2025	44	29	0	73
Sep 2025	34	11	2	47
Oct 2025	15	32	0	47
Nov 2025	26	22	5	53

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Short summary

This study evaluates the distribution and variation of carbon monoxide (CO) in the upper troposphere and lower stratosphere (UTLS) during 2004–2012 on global and regional scales as simulated by two chemical transport models (GMI and GEOS-Chem), using the latest version (V4) of Aura Microwave Limb Sounder (MLS) observations. The impacts of surface emissions and convection on CO concentrations in the UTLS over different regions are investigated, using both model simulations and MLS observations.