An inversion of NO<sub><i>x</i></sub> and non-methane volatile organic compound (NMVOC) emissions using satellite observations during the KORUS-AQ campaign and  implications for surface ozone over East Asia

Souri, Amir H.; Nowlan, Caroline R.; González Abad, Gonzalo; Zhu, Lei; Blake, Donald R.; Fried, Alan; Weinheimer, Andrew J.; Wisthaler, Armin; Woo, Jung-Hun; Zhang, Qiang; Chan Miller, Christopher E.; Liu, Xiong; Chance, Kelly

doi:10.5194/acp-20-9837-2020

Articles | Volume 20, issue 16

https://doi.org/10.5194/acp-20-9837-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-20-9837-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 16

Research article

|

24 Aug 2020

Research article |

| 24 Aug 2020

An inversion of NO_x and non-methane volatile organic compound (NMVOC) emissions using satellite observations during the KORUS-AQ campaign and implications for surface ozone over East Asia

Amir H. Souri, Caroline R. Nowlan, Gonzalo González Abad, Lei Zhu, Donald R. Blake, Alan Fried, Andrew J. Weinheimer, Armin Wisthaler, Jung-Hun Woo, Qiang Zhang, Christopher E. Chan Miller, Xiong Liu, and Kelly Chance

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Views and downloads (calculated since 31 Mar 2020)

Month	HTML	PDF	XML	Total
Mar 2020	74	31	1	106
Apr 2020	180	62	1	243
May 2020	82	20	1	103
Jun 2020	42	27	1	70
Jul 2020	71	24	3	98
Aug 2020	90	39	3	132
Sep 2020	109	50	1	160
Oct 2020	64	35	1	100
Nov 2020	81	31	1	113
Dec 2020	107	34	1	142
Jan 2021	49	34	0	83
Feb 2021	45	22	0	67
Mar 2021	59	28	0	87
Apr 2021	68	35	0	103
May 2021	42	25	1	68
Jun 2021	28	27	0	55
Jul 2021	46	23	0	69
Aug 2021	33	27	0	60
Sep 2021	41	29	1	71
Oct 2021	31	58	0	89
Nov 2021	39	30	0	69
Dec 2021	40	21	0	61
Jan 2022	44	29	1	74
Feb 2022	46	14	1	61
Mar 2022	24	4	0	28
Apr 2022	38	22	1	61
May 2022	26	20	0	46
Jun 2022	23	13	1	37
Jul 2022	45	7	1	53
Aug 2022	88	15	1	104
Sep 2022	36	15	0	51
Oct 2022	23	10	1	34
Nov 2022	48	18	0	66
Dec 2022	28	12	0	40
Jan 2023	31	15	0	46
Feb 2023	27	14	0	41
Mar 2023	37	21	0	58
Apr 2023	31	15	0	46
May 2023	43	17	2	62
Jun 2023	38	12	2	52
Jul 2023	43	20	1	64
Aug 2023	49	18	2	69
Sep 2023	42	9	0	51
Oct 2023	61	14	4	79
Nov 2023	31	11	0	42
Dec 2023	44	21	1	66
Jan 2024	57	14	0	71
Feb 2024	59	21	3	83
Mar 2024	73	24	1	98
Apr 2024	48	25	5	78
May 2024	91	27	2	120
Jun 2024	80	16	1	97
Jul 2024	86	9	0	95
Aug 2024	72	13	3	88
Sep 2024	56	12	0	68
Oct 2024	78	28	1	107
Nov 2024	54	102	4	160
Dec 2024	75	25	1	101
Jan 2025	54	5	1	60
Feb 2025	68	13	1	82
Mar 2025	79	9	3	91
Apr 2025	71	18	2	91
May 2025	84	12	1	97
Jun 2025	97	13	5	115
Jul 2025	73	19	2	94
Aug 2025	119	16	1	136
Sep 2025	149	17	3	169
Oct 2025	75	25	0	100
Nov 2025	36	32	0	68

Cumulative views and downloads (calculated since 31 Mar 2020)

Month	HTML	PDF	XML	Total
Mar 2020	74	31	1	106
Apr 2020	180	62	1	243
May 2020	82	20	1	103
Jun 2020	42	27	1	70
Jul 2020	71	24	3	98
Aug 2020	90	39	3	132
Sep 2020	109	50	1	160
Oct 2020	64	35	1	100
Nov 2020	81	31	1	113
Dec 2020	107	34	1	142
Jan 2021	49	34	0	83
Feb 2021	45	22	0	67
Mar 2021	59	28	0	87
Apr 2021	68	35	0	103
May 2021	42	25	1	68
Jun 2021	28	27	0	55
Jul 2021	46	23	0	69
Aug 2021	33	27	0	60
Sep 2021	41	29	1	71
Oct 2021	31	58	0	89
Nov 2021	39	30	0	69
Dec 2021	40	21	0	61
Jan 2022	44	29	1	74
Feb 2022	46	14	1	61
Mar 2022	24	4	0	28
Apr 2022	38	22	1	61
May 2022	26	20	0	46
Jun 2022	23	13	1	37
Jul 2022	45	7	1	53
Aug 2022	88	15	1	104
Sep 2022	36	15	0	51
Oct 2022	23	10	1	34
Nov 2022	48	18	0	66
Dec 2022	28	12	0	40
Jan 2023	31	15	0	46
Feb 2023	27	14	0	41
Mar 2023	37	21	0	58
Apr 2023	31	15	0	46
May 2023	43	17	2	62
Jun 2023	38	12	2	52
Jul 2023	43	20	1	64
Aug 2023	49	18	2	69
Sep 2023	42	9	0	51
Oct 2023	61	14	4	79
Nov 2023	31	11	0	42
Dec 2023	44	21	1	66
Jan 2024	57	14	0	71
Feb 2024	59	21	3	83
Mar 2024	73	24	1	98
Apr 2024	48	25	5	78
May 2024	91	27	2	120
Jun 2024	80	16	1	97
Jul 2024	86	9	0	95
Aug 2024	72	13	3	88
Sep 2024	56	12	0	68
Oct 2024	78	28	1	107
Nov 2024	54	102	4	160
Dec 2024	75	25	1	101
Jan 2025	54	5	1	60
Feb 2025	68	13	1	82
Mar 2025	79	9	3	91
Apr 2025	71	18	2	91
May 2025	84	12	1	97
Jun 2025	97	13	5	115
Jul 2025	73	19	2	94
Aug 2025	119	16	1	136
Sep 2025	149	17	3	169
Oct 2025	75	25	0	100
Nov 2025	36	32	0	68

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Short summary

For the first time, we provide a joint nonlinear optimal estimate of NO_x and NMVOC emissions during the KORUS-AQ campaign by simultaneously incorporating SAO's new product of HCHO columns from OMPS and OMI tropospheric NO₂ columns into a regional model. Results demonstrate a promising improvement in the performance of the model in terms of HCHO and NO₂ concentrations, which in turn enables us to quantify the impact of the emission changes on different pathways of ozone formation and loss.


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An inversion of NOx and non-methane volatile organic compound (NMVOC) emissions using satellite observations during the KORUS-AQ campaign and implications for surface ozone over East Asia

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An inversion of NO_x and non-methane volatile organic compound (NMVOC) emissions using satellite observations during the KORUS-AQ campaign and implications for surface ozone over East Asia