Journal cover Journal topic
Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

Journal metrics

  • IF value: 3.248 IF 3.248
  • IF 5-year value: 3.650 IF 5-year
    3.650
  • CiteScore value: 3.37 CiteScore
    3.37
  • SNIP value: 1.253 SNIP 1.253
  • SJR value: 1.869 SJR 1.869
  • IPP value: 3.29 IPP 3.29
  • h5-index value: 47 h5-index 47
  • Scimago H <br class='hide-on-tablet hide-on-mobile'>index value: 60 Scimago H
    index 60
Discussion papers
https://doi.org/10.5194/amt-2018-376
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-2018-376
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 03 Jan 2019

Research article | 03 Jan 2019

Review status
This discussion paper is a preprint. A revision of the manuscript is under review for the journal Atmospheric Measurement Techniques (AMT).

Development of a balloon-borne instrument for CO2 vertical profile observations in the troposphere

Mai Ouchi1, Yutaka Matsumi2, Tomoki Nakayama3, Kensaku Shimizu3, Takehiko Sawada3, Toshinobu Machida4, Hidekazu Matsueda5, Yousuke Sawa5, Isamu Morino4, Osamu Uchino4, Tomoaki Tanaka6,8, and Ryoichi Imasu7 Mai Ouchi et al.
  • 1Institute for Space-Earth Environmental Research and Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
  • 22Graduate School of Fisheries and Environmental Sciences, Nagasaki University, 1-14, Bunkyo-machi, Nagasaki, Nagasaki 852-8521 Japan
  • 3Meisei Electric co., Ltd., 2223 Naganumamachi, Isesaki-shi, Gunma 372-8585, Japan
  • 4National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506 Japan
  • 5Meteorological Research Institute, Japan Meteorological Agency, 1-1 Nagamine, Tsukuba, Ibaraki 305-0052, Japan
  • 6Japan Aerospace Exploration Agency Earth Observation Research Center, 2-1-1, Sengen, Tsukuba, Ibaraki 305-8505, Japan
  • 7Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba 277-8568, Japan
  • 8now at: NASA Ames Research Center, Moffett Field Mountain View CA 94035, USA

Abstract. A novel, practical observation system for measuring tropospheric carbon dioxide (CO2) concentrations using a non-dispersive infrared analyzer carried by a small helium-filled balloon (CO2 sonde), has been developed for the first time. Onboard calibrations, using CO2 standard gases, is possible to measure the vertical profiles of atmospheric CO2 accurately with a 240–400 m altitude resolution. The standard deviations (1σ) of the measured mixing ratios in the laboratory experiments using a vacuum chamber at a temperature of 298 K were approximately 0.6 ppm at 1010 hPa and 1.2 ppm at 250 hPa. Compared with in situ aircraft data, although the difference up to the altitude of 7 km was 0.6 ± 1.2 ppm, this bias and difference were within the precision of the CO2 sonde. In field experiments, the CO2 sonde detected an increase in CO2 concentration in an urban area and a decrease in a forested area near the surface. The CO2 sonde was shown to be a useful instrument for observing and monitoring the vertical profiles of CO2 concentration in the troposphere.

Mai Ouchi et al.
Interactive discussion
Status: final response (author comments only)
Status: final response (author comments only)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Mai Ouchi et al.
Mai Ouchi et al.
Viewed  
Total article views: 437 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
325 109 3 437 2 2
  • HTML: 325
  • PDF: 109
  • XML: 3
  • Total: 437
  • BibTeX: 2
  • EndNote: 2
Views and downloads (calculated since 03 Jan 2019)
Cumulative views and downloads (calculated since 03 Jan 2019)
Viewed (geographical distribution)  
Total article views: 212 (including HTML, PDF, and XML) Thereof 211 with geography defined and 1 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Cited  
Saved  
No saved metrics found.
Discussed  
No discussed metrics found.
Latest update: 16 Jun 2019
Publications Copernicus
Download
Short summary
A novel, practical observation system for measuring tropospheric carbon dioxide (CO2) concentrations carried by a small helium-filled balloon (CO2 sonde), has been developed for the first time. The low-cost CO2 sondes can potentially be used for frequently measurements of vertical profiles of CO2 in any parts of the world providing as useful information to understand the global and regional carbon budgets by replenishing the present sparse observation coverage.
A novel, practical observation system for measuring tropospheric carbon dioxide (CO2)...
Citation