Airborne observations of peroxy radicals during the EMeRGe campaign in Europe

George, Midhun; Andrés Hernández, Maria Dolores; Nenakhov, Vladyslav; Liu, Yangzhuoran; Burrows, John Philip; Bohn, Birger; Förster, Eric; Obersteiner, Florian; Zahn, Andreas; Harlaß, Theresa; Ziereis, Helmut; Schlager, Hans; Schreiner, Benjamin; Kluge, Flora; Bigge, Katja; Pfeilsticker, Klaus

doi:https://doi.org/10.5194/acp-23-7799-2023

Articles | Volume 23, issue 13

https://doi.org/10.5194/acp-23-7799-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Effect of Megacities on the Transport and Transformation of...

https://doi.org/10.5194/acp-23-7799-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 23, issue 13

Research article

|

14 Jul 2023

Research article |

| 14 Jul 2023

Airborne observations of peroxy radicals during the EMeRGe campaign in Europe

Midhun George, Maria Dolores Andrés Hernández, Vladyslav Nenakhov, Yangzhuoran Liu, John Philip Burrows, Birger Bohn, Eric Förster, Florian Obersteiner, Andreas Zahn, Theresa Harlaß, Helmut Ziereis, Hans Schlager, Benjamin Schreiner, Flora Kluge, Katja Bigge, and Klaus Pfeilsticker

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Apr 2022	33	12	1	46
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Jun 2022	26	7	0	33
Jul 2022	21	9	0	30
Aug 2022	13	5	0	18
Sep 2022	24	3	0	27
Oct 2022	17	4	0	21
Nov 2022	23	6	0	29
Dec 2022	21	9	0	30
Jan 2023	25	10	0	35
Feb 2023	55	20	9	84
Mar 2023	35	13	2	50
Apr 2023	25	9	0	34
May 2023	23	12	4	39
Jun 2023	15	12	1	28
Jul 2023	306	64	6	376
Aug 2023	131	26	5	162
Sep 2023	89	19	0	108
Oct 2023	100	19	5	124
Nov 2023	56	10	0	66
Dec 2023	36	14	1	51
Jan 2024	40	7	0	47
Feb 2024	28	13	2	43
Mar 2024	24	26	1	51
Apr 2024	25	18	3	46
May 2024	5	1	1	7

Cumulative views and downloads (calculated since 18 Feb 2022)

Month	HTML	PDF	XML	Total
Feb 2022	181	73	5	259
Mar 2022	145	36	6	187
Apr 2022	33	12	1	46
May 2022	15	4	2	21
Jun 2022	26	7	0	33
Jul 2022	21	9	0	30
Aug 2022	13	5	0	18
Sep 2022	24	3	0	27
Oct 2022	17	4	0	21
Nov 2022	23	6	0	29
Dec 2022	21	9	0	30
Jan 2023	25	10	0	35
Feb 2023	55	20	9	84
Mar 2023	35	13	2	50
Apr 2023	25	9	0	34
May 2023	23	12	4	39
Jun 2023	15	12	1	28
Jul 2023	306	64	6	376
Aug 2023	131	26	5	162
Sep 2023	89	19	0	108
Oct 2023	100	19	5	124
Nov 2023	56	10	0	66
Dec 2023	36	14	1	51
Jan 2024	40	7	0	47
Feb 2024	28	13	2	43
Mar 2024	24	26	1	51
Apr 2024	25	18	3	46
May 2024	5	1	1	7

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The applicability of photostationary steady-state (PSS) assumptions to estimate the amount of the sum of peroxy radicals (RO₂*) during the EMeRGe airborne observations from the known radical chemistry and onboard measurements of RO₂* precursors, photolysis frequencies, and other trace gases such as NO_x and O₃ was investigated. The comparison of the calculated RO₂* with the actual measurements provides an insight into the main processes controlling their concentration in the air masses measured.

Airborne observations of peroxy radicals during the EMeRGe campaign in Europe

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