Twelve-month, 12 km resolution North American WRF-Chem v3.4 air quality simulation: performance evaluation

Tessum, C. W.; Hill, J. D.; Marshall, J. D.

doi:10.5194/gmd-8-957-2015

Articles | Volume 8, issue 4

https://doi.org/10.5194/gmd-8-957-2015

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

Special issue:

The community version of the Weather Research and Forecasting...

https://doi.org/10.5194/gmd-8-957-2015

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

Articles | Volume 8, issue 4

Development and technical paper

|

07 Apr 2015

Development and technical paper |

| 07 Apr 2015

Twelve-month, 12 km resolution North American WRF-Chem v3.4 air quality simulation: performance evaluation

C. W. Tessum, J. D. Hill, and J. D. Marshall

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Views and downloads (calculated since 02 Dec 2014)

Month	HTML	PDF	XML	Total
Dec 2014	102	224	4	330
Jan 2015	32	15	4	51
Feb 2015	14	10	2	26
Mar 2015	10	11	5	26
Apr 2015	125	59	7	191
May 2015	35	43	1	79
Jun 2015	35	28	2	65
Jul 2015	31	13	0	44
Aug 2015	23	27	0	50
Sep 2015	22	17	1	40
Oct 2015	34	15	4	53
Nov 2015	31	17	2	50
Dec 2015	18	19	1	38
Jan 2016	44	34	2	80
Feb 2016	18	45	2	65
Mar 2016	19	42	0	61
Apr 2016	16	40	0	56
May 2016	23	35	6	64
Jun 2016	10	16	3	29
Jul 2016	16	6	6	28
Aug 2016	15	7	2	24
Sep 2016	15	7	2	24
Oct 2016	17	9	1	27
Nov 2016	14	5	4	23
Dec 2016	6	9	2	17
Jan 2017	26	8	4	38
Feb 2017	17	11	5	33
Mar 2017	43	18	9	70
Apr 2017	44	10	7	61
May 2017	42	22	8	72
Jun 2017	43	9	5	57
Jul 2017	24	13	0	37
Aug 2017	6	9	0	15
Sep 2017	8	13	2	23
Oct 2017	9	12	1	22
Nov 2017	11	16	1	28
Dec 2017	11	12	0	23
Jan 2018	19	18	4	41
Feb 2018	39	20	5	64
Mar 2018	13	17	1	31
Apr 2018	7	20	0	27
May 2018	9	21	2	32
Jun 2018	10	21	0	31
Jul 2018	19	23	1	43
Aug 2018	15	17	3	35
Sep 2018	16	16	1	33
Oct 2018	11	21	0	32
Nov 2018	27	27	3	57
Dec 2018	21	23	0	44
Jan 2019	16	23	0	39
Feb 2019	5	14	0	19
Mar 2019	19	15	0	34
Apr 2019	17	23	1	41
May 2019	6	14	0	20
Jun 2019	8	17	0	25
Jul 2019	13	24	0	37
Aug 2019	14	17	0	31
Sep 2019	17	13	0	30
Oct 2019	27	21	2	50
Nov 2019	9	11	0	20
Dec 2019	13	21	0	34
Jan 2020	16	6	2	24
Feb 2020	15	4	0	19
Mar 2020	10	11	1	22
Apr 2020	10	8	0	18
May 2020	21	10	0	31
Jun 2020	17	16	0	33
Jul 2020	48	42	28	118
Aug 2020	9	10	0	19
Sep 2020	13	16	0	29
Oct 2020	7	5	0	12
Nov 2020	19	12	1	32
Dec 2020	18	15	0	33
Jan 2021	28	13	1	42
Feb 2021	15	10	1	26
Mar 2021	20	11	0	31
Apr 2021	9	14	0	23
May 2021	8	15	0	23
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Jul 2021	9	13	0	22
Aug 2021	17	22	0	39
Sep 2021	13	20	0	33
Oct 2021	8	35	0	43
Nov 2021	14	26	1	41
Dec 2021	15	17	1	33
Jan 2022	16	24	1	41
Feb 2022	20	9	1	30
Mar 2022	16	15	1	32
Apr 2022	42	16	1	59
May 2022	44	10	1	55
Jun 2022	33	10	0	43
Jul 2022	34	11	0	45
Aug 2022	42	13	0	55
Sep 2022	44	10	0	54
Oct 2022	53	25	3	81
Nov 2022	51	8	0	59
Dec 2022	37	17	0	54
Jan 2023	41	28	2	71
Feb 2023	48	17	1	66
Mar 2023	64	16	0	80
Apr 2023	45	15	1	61
May 2023	55	17	2	74
Jun 2023	44	4	0	48
Jul 2023	49	10	0	59
Aug 2023	54	14	3	71
Sep 2023	50	11	1	62
Oct 2023	61	14	1	76
Nov 2023	24	3	0	27
Dec 2023	45	10	2	57
Jan 2024	55	9	4	68
Feb 2024	50	10	3	63
Mar 2024	53	15	0	68
Apr 2024	52	6	5	63
May 2024	31	19	6	56
Jun 2024	30	10	2	42
Jul 2024	20	15	3	38
Aug 2024	19	8	2	29
Sep 2024	14	6	0	20
Oct 2024	18	3	0	21
Nov 2024	18	11	1	30
Dec 2024	12	11	0	23
Jan 2025	21	14	0	35
Feb 2025	38	15	2	55
Mar 2025	28	19	1	48
Apr 2025	8	12	0	20
May 2025	19	10	0	29
Jun 2025	34	14	2	50
Jul 2025	31	32	1	64
Aug 2025	31	17	0	48
Sep 2025	29	38	2	69
Oct 2025	40	31	4	75
Nov 2025	18	20	3	41

Cumulative views and downloads (calculated since 02 Dec 2014)

Month	HTML	PDF	XML	Total
Dec 2014	102	224	4	330
Jan 2015	32	15	4	51
Feb 2015	14	10	2	26
Mar 2015	10	11	5	26
Apr 2015	125	59	7	191
May 2015	35	43	1	79
Jun 2015	35	28	2	65
Jul 2015	31	13	0	44
Aug 2015	23	27	0	50
Sep 2015	22	17	1	40
Oct 2015	34	15	4	53
Nov 2015	31	17	2	50
Dec 2015	18	19	1	38
Jan 2016	44	34	2	80
Feb 2016	18	45	2	65
Mar 2016	19	42	0	61
Apr 2016	16	40	0	56
May 2016	23	35	6	64
Jun 2016	10	16	3	29
Jul 2016	16	6	6	28
Aug 2016	15	7	2	24
Sep 2016	15	7	2	24
Oct 2016	17	9	1	27
Nov 2016	14	5	4	23
Dec 2016	6	9	2	17
Jan 2017	26	8	4	38
Feb 2017	17	11	5	33
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Apr 2017	44	10	7	61
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Jun 2017	43	9	5	57
Jul 2017	24	13	0	37
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Sep 2017	8	13	2	23
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Nov 2017	11	16	1	28
Dec 2017	11	12	0	23
Jan 2018	19	18	4	41
Feb 2018	39	20	5	64
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Apr 2018	7	20	0	27
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Jul 2018	19	23	1	43
Aug 2018	15	17	3	35
Sep 2018	16	16	1	33
Oct 2018	11	21	0	32
Nov 2018	27	27	3	57
Dec 2018	21	23	0	44
Jan 2019	16	23	0	39
Feb 2019	5	14	0	19
Mar 2019	19	15	0	34
Apr 2019	17	23	1	41
May 2019	6	14	0	20
Jun 2019	8	17	0	25
Jul 2019	13	24	0	37
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Sep 2019	17	13	0	30
Oct 2019	27	21	2	50
Nov 2019	9	11	0	20
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May 2020	21	10	0	31
Jun 2020	17	16	0	33
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Nov 2020	19	12	1	32
Dec 2020	18	15	0	33
Jan 2021	28	13	1	42
Feb 2021	15	10	1	26
Mar 2021	20	11	0	31
Apr 2021	9	14	0	23
May 2021	8	15	0	23
Jun 2021	6	7	0	13
Jul 2021	9	13	0	22
Aug 2021	17	22	0	39
Sep 2021	13	20	0	33
Oct 2021	8	35	0	43
Nov 2021	14	26	1	41
Dec 2021	15	17	1	33
Jan 2022	16	24	1	41
Feb 2022	20	9	1	30
Mar 2022	16	15	1	32
Apr 2022	42	16	1	59
May 2022	44	10	1	55
Jun 2022	33	10	0	43
Jul 2022	34	11	0	45
Aug 2022	42	13	0	55
Sep 2022	44	10	0	54
Oct 2022	53	25	3	81
Nov 2022	51	8	0	59
Dec 2022	37	17	0	54
Jan 2023	41	28	2	71
Feb 2023	48	17	1	66
Mar 2023	64	16	0	80
Apr 2023	45	15	1	61
May 2023	55	17	2	74
Jun 2023	44	4	0	48
Jul 2023	49	10	0	59
Aug 2023	54	14	3	71
Sep 2023	50	11	1	62
Oct 2023	61	14	1	76
Nov 2023	24	3	0	27
Dec 2023	45	10	2	57
Jan 2024	55	9	4	68
Feb 2024	50	10	3	63
Mar 2024	53	15	0	68
Apr 2024	52	6	5	63
May 2024	31	19	6	56
Jun 2024	30	10	2	42
Jul 2024	20	15	3	38
Aug 2024	19	8	2	29
Sep 2024	14	6	0	20
Oct 2024	18	3	0	21
Nov 2024	18	11	1	30
Dec 2024	12	11	0	23
Jan 2025	21	14	0	35
Feb 2025	38	15	2	55
Mar 2025	28	19	1	48
Apr 2025	8	12	0	20
May 2025	19	10	0	29
Jun 2025	34	14	2	50
Jul 2025	31	32	1	64
Aug 2025	31	17	0	48
Sep 2025	29	38	2	69
Oct 2025	40	31	4	75
Nov 2025	18	20	3	41

Latest update: 19 Nov 2025

Short summary

We evaluate the predictive performance of a 12-month, 12km horizontal resolution WRF-Chem air quality model simulation for the contiguous United States. Model performance is comparable to other contemporary models used for regulatory and health-effects analysis, with 12% bias for daytime ozone and -1% bias for fine particulate matter (PM2.5). Performance for PM2.5 is worse in winter and in the western U.S. than in other seasons and regions, suggesting opportunities for future model development.