Journal cover Journal topic
Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

IF value: 5.414
IF5.414
IF 5-year value: 5.958
IF 5-year
5.958
CiteScore value: 9.7
CiteScore
9.7
SNIP value: 1.517
SNIP1.517
IPP value: 5.61
IPP5.61
SJR value: 2.601
SJR2.601
Scimago H <br class='widget-line-break'>index value: 191
Scimago H
index
191
h5-index value: 89
h5-index89
Preprints
https://doi.org/10.5194/acp-2020-990
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-2020-990
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

  03 Nov 2020

03 Nov 2020

Review status
This preprint is currently under review for the journal ACP.

Contribution of air-mass transport via the South Asia High to the deep stratosphere in summer

Yu Liu Yu Liu
  • State Key Laboratory of Severe Weather, Key Laboratory of Atmospheric Chemistry of CMA, Chinese Academy of Meteorological Sciences, Beijing 100081, China

Abstract. This study proposes a method for estimating meridional and vertical air-mass transport in the stratosphere based on the mass conservation equation. The method does not require calculation of the velocity and flux, and avoids the uncertainty in vertical velocity estimates. Using satellite observations of hydrogen cyanide (HCN) concentrations in summer (June–September), the relative contributions of air mass originating from the troposphere and transporting into the deep stratosphere via the tropical tropopause and South Asia High (SAH) were estimated as 7.72 % and 14.55 %, while those of HCN were 7.17 % and 15.72 %, respectively. These results indicate that the air-mass contributions of the SAH are greater than those of the tropical troposphere, and that the SAH is the most important air-mass transport pathway from the troposphere to the deep stratosphere in summer. This suggests that the impact of pollutants from Asia on the stratosphere is greater than that reported by previous studies.

Yu Liu

Interactive discussion

Status: open (until 29 Dec 2020)
Status: open (until 29 Dec 2020)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
[Subscribe to comment alert] Printer-friendly Version - Printer-friendly version Supplement - Supplement

Yu Liu

Yu Liu

Viewed

Total article views: 16 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
10 4 2 16 3 2
  • HTML: 10
  • PDF: 4
  • XML: 2
  • Total: 16
  • BibTeX: 3
  • EndNote: 2
Views and downloads (calculated since 03 Nov 2020)
Cumulative views and downloads (calculated since 03 Nov 2020)

Viewed (geographical distribution)

Total article views: 82 (including HTML, PDF, and XML) Thereof 82 with geography defined and 0 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 

Cited

Saved

No saved metrics found.

Discussed

No discussed metrics found.
Latest update: 24 Nov 2020
Publications Copernicus
Download
Short summary
In order to aviod uncertainty in the estimatione of contribution of air-mass transport from the South Asia High (SAH) to the deep stratosphere, I proposed a new method. Results show that the SAH is the most important air-mass transport pathway from the troposphere to the deep stratosphere in summer. This suggests that the impact of pollutants from Asia on the stratosphere is greater than that reported by previous studies.
In order to aviod uncertainty in the estimatione of contribution of air-mass transport from the...
Citation
Altmetrics