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-2020-122
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-2020-122
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

  02 Apr 2020

02 Apr 2020

Review status
A revised version of this preprint was accepted for the journal ACP and is expected to appear here in due course.

14C observations of atmospheric CO2 at Anmyeondo GAW station, Korea: Implications for fossil fuel CO2 and emission ratios

Haeyoung Lee1,2, Edward J. Dlugokencky3, Jocelyn C. Turnbull4,5, Sepyo Lee1, Scott J. Lehman6, John B. Miller3, Gabrielle Petron3,5, Jeongsik Lim7, Gang-Woong Lee2, Sang-Sam Lee1, and Young-San Park1 Haeyoung Lee et al.
  • 1National Institute of Meteorological Sciences, Jeju, 63568, Republic of Korea
  • 2Atmospheric Chemistry Laboratory, Hankuk University of Foreign Studies, Gyeonggi-do, 17035, Republic of Korea
  • 3NOAA, Earth System Research Laboratory, Global Monitoring Division, Boulder, Colorado, USA
  • 4National Isotope Center, GNS Science, Lower Hutt, New Zealand
  • 5CIRES, University of Colorado, Boulder, Colorado, USA
  • 6INSTAAR, University of Colorado, Boulder, Colorado, USA
  • 7Korea Research Institute of Standard and Science, Daejeon, 34113, Republic of Korea

Abstract. To understand Korea's carbon dioxide (CO2) emissions and sinks as well as those of the surrounding region, we used 70 flask-air samples collected during May 2014 to August 2016 at Anmyeondo (AMY, 36.53° N, 126.32° E; 46 m a.s.l.) World Meteorological Organization (WMO) Global Atmosphere Watch (GAW) station, located on the west coast of South Korea, for analysis of observed 14C in atmospheric CO2 as a tracer of fossil fuel CO2 contribution (Cff). Observed 14C / C ratios in CO2 at AMY varied from −59.5 to 23.1 ‰ with the measurement uncertainty of ±1.8 ‰. The derived mean value Cff of (9.7 ± 7.8) μmol mol−1 (1σ) is greater than that found in earlier observations from Tae-Ahn Peninsula (TAP, 36.73° N, 126.13° E, 20 m a.s.l., 24 km away from AMY) of (4.4 ± 5.7) μmol mol−1 from 2004 to 2010. The enhancement above background of sulfur hexafluoride (Δx(SF6)) and carbon monoxide (Δx(CO)) correlate strongly with Cff (r > 0.7) and appear to be good proxies for fossil fuel CO2 at regional and continental scales. Samples originating from the Asian continent had greater Δx(CO) : Cff (RCO) values, (29 ± 8) to (36 ± 2) nmol μmol−1, than in Korean local air ((8 ± 2) nmol μmol−1). Air masses originating in China showed (1.8 ± 0.2) times greater RCO than a bottom-up inventory suggesting that China's CO emissions are underestimated in the inventory. However, both RCO derived from inventories and observations have decreased relative to previous studies, indicating that combustion efficiency is increasing in both China and South Korea.

Haeyoung Lee et al.

Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement

Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement

Haeyoung Lee et al.

Haeyoung Lee et al.

Viewed

Total article views: 364 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
270 81 13 364 32 11 12
  • HTML: 270
  • PDF: 81
  • XML: 13
  • Total: 364
  • Supplement: 32
  • BibTeX: 11
  • EndNote: 12
Views and downloads (calculated since 02 Apr 2020)
Cumulative views and downloads (calculated since 02 Apr 2020)

Viewed (geographical distribution)

Total article views: 330 (including HTML, PDF, and XML) Thereof 328 with geography defined and 2 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 

Cited

Saved

No saved metrics found.

Discussed

No discussed metrics found.
Latest update: 20 Oct 2020
Publications Copernicus
Download
Short summary
To understand Korea's carbon dioxide (CO2) emissions and sinks as well as those of the surrounding region, we used flask-air samples collected for two years at Anmyeondo (36.53° N, 126.32° E; 46 m a.s.l.), South Korea, for analysis of observed 14C in atmospheric CO2 as a tracer of fossil fuel CO2 contribution (Cff). Here, we showed our observation result of 14C and Cff. SF6 and CO can be good proxies of Cff in this study and the ratio of CO to Cff was compared to a bottom-up inventory.
To understand Korea's carbon dioxide (CO2) emissions and sinks as well as those of the...
Citation
Altmetrics