Accounting for model error in air quality forecasts: an application of 4DEnVar to the assimilation of atmospheric composition using QG-Chem 1.0

Emili, Emanuele; Gürol, Selime; Cariolle, Daniel

doi:https://doi.org/10.5194/gmd-9-3933-2016

Articles | Volume 9, issue 11

https://doi.org/10.5194/gmd-9-3933-2016

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

https://doi.org/10.5194/gmd-9-3933-2016

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

Articles | Volume 9, issue 11

Model experiment description paper

| Highlight paper

|

08 Nov 2016

Model experiment description paper | Highlight paper |

| 08 Nov 2016

Accounting for model error in air quality forecasts: an application of 4DEnVar to the assimilation of atmospheric composition using QG-Chem 1.0

Emanuele Emili, Selime Gürol, and Daniel Cariolle

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Feb 2018	35	18	5	58
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Jan 2019	22	17	0	39
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Mar 2019	24	15	1	40
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Aug 2019	36	14	0	50
Sep 2019	30	15	0	45
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Oct 2020	43	4	2	49
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Dec 2020	68	12	0	80
Jan 2021	85	6	1	92
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Cumulative views and downloads (calculated since 24 May 2016)

Month	HTML	PDF	XML	Total
May 2016	100	41	0	141
Jun 2016	24	20	1	45
Jul 2016	15	7	0	22
Aug 2016	18	6	0	24
Sep 2016	5	5	0	10
Oct 2016	4	2	0	6
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Dec 2016	32	17	6	55
Jan 2017	46	15	8	69
Feb 2017	55	30	9	94
Mar 2017	92	27	14	133
Apr 2017	98	27	18	143
May 2017	100	24	18	142
Jun 2017	70	16	12	98
Jul 2017	41	18	4	63
Aug 2017	44	17	2	63
Sep 2017	34	14	2	50
Oct 2017	14	11	1	26
Nov 2017	16	17	1	34
Dec 2017	15	15	1	31
Jan 2018	23	7	3	33
Feb 2018	35	18	5	58
Mar 2018	17	16	0	33
Apr 2018	14	15	0	29
May 2018	15	17	0	32
Jun 2018	16	19	0	35
Jul 2018	15	16	1	32
Aug 2018	23	19	3	45
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Feb 2019	9	17	3	29
Mar 2019	24	15	1	40
Apr 2019	25	11	0	36
May 2019	31	18	2	51
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Oct 2024	16	13	0	29
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Cited

Latest update: 24 Dec 2024

Short summary

This paper analyses methods to assimilate chemical measurements in air quality models. We developed a reduced-order atmospheric chemistry model, which was used to compare results from different assimilation algorithms. Using an ensemble variational method (4DEnVar), we exploited the dynamical information provided by hourly measurements of chemical concentrations to diagnose model biases and improve next-day forecasts for several species of interest for air quality.

Accounting for model error in air quality forecasts: an application of 4DEnVar to the assimilation of atmospheric composition using QG-Chem 1.0

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Cited

8 citations as recorded by crossref.

8 citations as recorded by crossref.