In situ observation of new particle formation (NPF) in the tropical tropopause layer of the 2017 Asian monsoon anticyclone – Part 2: NPF inside ice clouds

Weigel, Ralf; Mahnke, Christoph; Baumgartner, Manuel; Krämer, Martina; Spichtinger, Peter; Spelten, Nicole; Afchine, Armin; Rolf, Christian; Viciani, Silvia; D'Amato, Francesco; Tost, Holger; Borrmann, Stephan

doi:https://doi.org/10.5194/acp-21-13455-2021

Articles | Volume 21, issue 17

https://doi.org/10.5194/acp-21-13455-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

StratoClim stratospheric and upper tropospheric processes...

https://doi.org/10.5194/acp-21-13455-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 21, issue 17

Research article

|

10 Sep 2021

Research article |

| 10 Sep 2021

In situ observation of new particle formation (NPF) in the tropical tropopause layer of the 2017 Asian monsoon anticyclone – Part 2: NPF inside ice clouds

Ralf Weigel, Christoph Mahnke, Manuel Baumgartner, Martina Krämer, Peter Spichtinger, Nicole Spelten, Armin Afchine, Christian Rolf, Silvia Viciani, Francesco D'Amato, Holger Tost, and Stephan Borrmann

Viewed

Total article views: 2,675 (including HTML, PDF, and XML)

HTML	PDF	XML	Total	BibTeX	EndNote
1,696	921	58	2,675	60	55

HTML: 1,696
PDF: 921
XML: 58
Total: 2,675
BibTeX: 60
EndNote: 55

Views and downloads (calculated since 05 Jan 2021)

Month	HTML	PDF	XML	Total
Jan 2021	115	48	2	165
Feb 2021	32	14	0	46
Mar 2021	58	22	6	86
Apr 2021	38	19	1	58
May 2021	41	16	2	59
Jun 2021	32	7	0	39
Jul 2021	38	11	1	50
Aug 2021	25	8	0	33
Sep 2021	239	61	6	306
Oct 2021	128	105	0	233
Nov 2021	89	70	0	159
Dec 2021	66	23	1	90
Jan 2022	24	21	0	45
Feb 2022	27	15	2	44
Mar 2022	14	12	0	26
Apr 2022	11	10	1	22
May 2022	21	9	0	30
Jun 2022	18	7	0	25
Jul 2022	12	3	0	15
Aug 2022	16	11	0	27
Sep 2022	26	8	0	34
Oct 2022	22	12	3	37
Nov 2022	28	15	0	43
Dec 2022	16	15	0	31
Jan 2023	20	22	1	43
Feb 2023	16	10	0	26
Mar 2023	25	12	2	39
Apr 2023	9	10	0	19
May 2023	15	6	0	21
Jun 2023	18	11	3	32
Jul 2023	13	11	1	25
Aug 2023	15	19	1	35
Sep 2023	15	21	1	37
Oct 2023	15	8	1	24
Nov 2023	6	5	0	11
Dec 2023	20	6	1	27
Jan 2024	12	8	1	21
Feb 2024	15	23	1	39
Mar 2024	21	21	1	43
Apr 2024	29	15	4	48
May 2024	25	14	3	42
Jun 2024	39	17	3	59
Jul 2024	19	10	2	31
Aug 2024	30	14	3	47
Sep 2024	13	14	0	27
Oct 2024	25	6	0	31
Nov 2024	17	14	2	33
Dec 2024	13	14	0	27
Jan 2025	26	20	0	46
Feb 2025	30	7	0	37
Mar 2025	13	17	2	32
Apr 2025	15	16	0	31
May 2025	31	8	0	39

Cumulative views and downloads (calculated since 05 Jan 2021)

Month	HTML	PDF	XML	Total
Jan 2021	115	48	2	165
Feb 2021	32	14	0	46
Mar 2021	58	22	6	86
Apr 2021	38	19	1	58
May 2021	41	16	2	59
Jun 2021	32	7	0	39
Jul 2021	38	11	1	50
Aug 2021	25	8	0	33
Sep 2021	239	61	6	306
Oct 2021	128	105	0	233
Nov 2021	89	70	0	159
Dec 2021	66	23	1	90
Jan 2022	24	21	0	45
Feb 2022	27	15	2	44
Mar 2022	14	12	0	26
Apr 2022	11	10	1	22
May 2022	21	9	0	30
Jun 2022	18	7	0	25
Jul 2022	12	3	0	15
Aug 2022	16	11	0	27
Sep 2022	26	8	0	34
Oct 2022	22	12	3	37
Nov 2022	28	15	0	43
Dec 2022	16	15	0	31
Jan 2023	20	22	1	43
Feb 2023	16	10	0	26
Mar 2023	25	12	2	39
Apr 2023	9	10	0	19
May 2023	15	6	0	21
Jun 2023	18	11	3	32
Jul 2023	13	11	1	25
Aug 2023	15	19	1	35
Sep 2023	15	21	1	37
Oct 2023	15	8	1	24
Nov 2023	6	5	0	11
Dec 2023	20	6	1	27
Jan 2024	12	8	1	21
Feb 2024	15	23	1	39
Mar 2024	21	21	1	43
Apr 2024	29	15	4	48
May 2024	25	14	3	42
Jun 2024	39	17	3	59
Jul 2024	19	10	2	31
Aug 2024	30	14	3	47
Sep 2024	13	14	0	27
Oct 2024	25	6	0	31
Nov 2024	17	14	2	33
Dec 2024	13	14	0	27
Jan 2025	26	20	0	46
Feb 2025	30	7	0	37
Mar 2025	13	17	2	32
Apr 2025	15	16	0	31
May 2025	31	8	0	39

Viewed (geographical distribution)

Total article views: 2,675 (including HTML, PDF, and XML) Thereof 2,675 with geography defined and 0 with unknown origin.

Country	#	Views	%

1

1

Cited

Latest update: 22 May 2025

Short summary

In July and August 2017, the StratoClim mission took place in Nepal with eight flights of the M-55 Geophysica at up to 20 km in the Asian monsoon anticyclone. New particle formation (NPF) next to cloud ice was detected in situ by abundant nucleation-mode aerosols (> 6 nm) along with ice particles (> 3 µm). NPF was observed mainly below the tropopause, down to 15 % being non-volatile residues. Observed intra-cloud NPF indicates its importance for the composition in the tropical tropopause layer.

In situ observation of new particle formation (NPF) in the tropical tropopause layer of the 2017 Asian monsoon anticyclone – Part 2: NPF inside ice clouds

Viewed

Viewed (geographical distribution)

Cited

7 citations as recorded by crossref.

6 citations as recorded by crossref.

1 citations as recorded by crossref.


Total:	0
HTML:	0
PDF:	0
XML:	0


Total:	0
HTML:	0
PDF:	0
XML:	0


Total:	0
HTML:	0
PDF:	0
XML:	0