Arctic Research Directory

ID-110 :   Ship-board observations of atmospheric greenhouse gases and related species in the Arctic ocean and the western North Pacific

Type

FIELDWORK

Research/Observation Title

Ship-board observations of atmospheric greenhouse gases and related species in the Arctic ocean and the western North Pacific

Science Summary (common)

The Arctic region is considered to be vulnerable to the global warming, which would potentially enhance emissions of the greenhouse gases (GHGs) including CO2 and CH4 from the carbon pools in the Arctic regions into the atmosphere. In order to detect the increases in the emissions of GHGs associated with the ongoing global warming in the Arctic region in the early stage, continuous observations of the atmospheric CO2 and CH4 mixing ratios. Atmospheric CO2, CH4, and CO mixing ratios were measured by a wavelength-scanned cavity ring-down spectrometer (WS-CRDS, Picarro, G2401). The air sample, drawn from an air intake placed on the right-side of the upper deck, was introduced into the WS-CRDS. The WS-CRDS was automatically calibrated every 25 hour by introducing 3 standard airs with known CO2, CH4 and CO mixing ratios and the analytical precisions for CO2, CH4, and CO mixing ratios were about 0.02 ppm, 0.3 ppb and 3 ppb, respectively.
- Individual Project Information 1/4 Research/Observation Period 2016-08-22 〜 2016-10-05

Science Summary

The Arctic region is considered to be vulnerable to the global warming, which would potentially enhance emissions of the greenhouse gases (GHGs) including CO2 and CH4 from the carbon pools in the Arctic regions into the atmosphere. In order to detect the increases in the emissions of GHGs associated with the ongoing global warming in the Arctic region in the early stage, continuous observations of the atmospheric CO2 and CH4 mixing ratios during this MR16-06 cruise. Atmospheric CO2, CH4, and CO mixing ratios were measured by a wavelength-scanned cavity ring-down spectrometer (WS-CRDS, Picarro, G2401). The air sample, drawn from an air intake placed on the right-side of the upper deck, was introduced into the WS-CRDS. The WS-CRDS was automatically calibrated every 25 hour by introducing 3 standard airs with known CO2, CH4 and CO mixing ratios and the analytical precisions for CO2, CH4, and CO mixing ratios were about 0.02 ppm, 0.3 ppb and 3 ppb, respectively. The shipboard measurements were conducted during the entire cruse (22 August – 5 October, 2016).

Discipline(s)

Atmospheric Science, Meteorology and Climate, Oceanography

Personnel

RollContact PersonNameYasunori TohjimaAffiliationNational Insitutute for Environmental StudiesCountryJapanEmailtohjima@nies.go.jp

Research/Observation Methods

Atmospheric CO2, CH4, and CO mixing ratios (R/V Mirai Cruise MR16-06)

Research/Observation Period

2016-08-22 〜 2016-10-05

Research/Observation Area

N: 73.868889, S: 40.168889, W: 141.551944 E: -152.000000,
- Individual Project Information 2/4 Research/Observation Period 2017-08-23 〜 2017-10-02

Science Summary

The Arctic region is considered to be vulnerable to the global warming, which would potentially enhance emissions of the greenhouse gases (GHGs) including CO2 and CH4 from the carbon pools in the Arctic regions into the atmosphere. In order to detect the increases in the emissions of GHGs associated with the ongoing global warming in the Arctic region in the early stage, continuous observations of the atmospheric CO2 and CH4 mixing ratios during this MR17-05C cruise. Atmospheric CO2, CH4, and CO mixing ratios were measured by a wavelength-scanned cavity ring-down spectrometer (WS-CRDS, Picarro, G2401). The air sample, drawn from an air intake placed on the right-side of the upper deck, was introduced into the WS-CRDS. The WS-CRDS was automatically calibrated every 25 hour by introducing 3 standard airs with known CO2, CH4 and CO mixing ratios and the analytical precisions for CO2, CH4, and CO mixing ratios were about 0.02 ppm, 0.3 ppb and 3 ppb, respectively. The shipboard measurements were conducted during the entire cruse (23 August – 2 October, 2017).

Discipline(s)

Atmospheric Science, Meteorology and Climate

Personnel

RollContact PersonNameYasunori TohjimaAffiliationNational Insitutute for Environmental StudiesCountryJapanEmailtohjima@nies.go.jp

Research/Observation Methods

Atmospheric CO2, CH4, and CO mixing ratios (R/V Mirai Cruise MR17-05C)

Research/Observation Period

2017-08-23 〜 2017-10-02

Research/Observation Area

N: 73.868889, S: 40.168889, W: 208.000000 E: 141.551944,
- Individual Project Information 3/4 Research/Observation Period 2017-08-23 〜 2017-10-02

Science Summary

The Arctic region is considered to be vulnerable to the global warming, which would potentially enhance emissions of the greenhouse gases (GHGs) including CO2 and CH4 from the carbon pools in the Arctic regions into the atmosphere. In order to detect the increases in the emissions of GHGs associated with the ongoing global warming in the Arctic region in the early stage, continuous observations of the atmospheric CO2 and CH4 mixing ratios during this MR17-05C cruise. Atmospheric CO2, CH4, and CO mixing ratios were measured by a wavelength-scanned cavity ring-down spectrometer (WS-CRDS, Picarro, G2401). The air sample, drawn from an air intake placed on the right-side of the upper deck, was introduced into the WS-CRDS. The WS-CRDS was automatically calibrated every 25 hour by introducing 3 standard airs with known CO2, CH4 and CO mixing ratios and the analytical precisions for CO2, CH4, and CO mixing ratios were about 0.02 ppm, 0.3 ppb and 3 ppb, respectively. The shipboard measurements were conducted during the entire cruse (23 August – 2 October, 2017).

Discipline(s)

Atmospheric Science, Meteorology and Climate

Personnel

RollContact PersonNameYasunori TohjimaAffiliationNational Insitutute for Environmental StudiesCountryJapanEmailtohjima@nies.go.jp

Research/Observation Methods

Atmospheric CO2, CH4, and CO mixing ratios (R/V Mirai Cruise MR17-05C)

Research/Observation Period

2017-08-23 〜 2017-10-02

Research/Observation Area

N: 73.868889, S: 40.168889, W: 208.000000 E: 141.551944,
- Individual Project Information 4/4 Research/Observation Period 2018-10-24 〜 2018-12-07

Science Summary

The Arctic region is considered to be vulnerable to the global warming, which would potentially enhance emissions of the greenhouse gases (GHGs) including CO2 and CH4 from the carbon pools in the Arctic regions into the atmosphere. In order to detect the increases in the emissions of GHGs associated with the ongoing global warming in the Arctic region in the early stage, continuous observations of the atmospheric CO2 and CH4 mixing ratios are conducted during MR18-05C cruise by using a wavelength-scanned cavity ring-down spectrometer (WS-CRDS, Picarro, G2401). The air sample, drawn from an air intake placed on the right-side of the upper deck, is introduced into the WS-CRDS. The WS-CRDS is automatically calibrated every 25 hours by introducing 3 standard airs with known CO2 and CH4 mixing ratios and the analytical precisions for CO2 and CH4 mixing ratios were about 0.02 ppm and 0.3 ppb, respectively. The shipboard measurements are conducted during the entire cruse (October 24 – December 7, 2018).

Discipline(s)

Atmospheric Science, Meteorology and Climate

Personnel

RollContact PersonNameYasunori TohjimaAffiliationNational Insitutute for Environmental StudiesCountryJapanEmailtohjima@nies.go.jp

Research/Observation Methods

Continuous measurements of atmospheric CO2, CH4, and CO mixing ratios aboard R/V Mirai during MR18-05C cruise. MR16-06) by using a wavelength-scanned cavity ring-down spectrometer (WS-CRDS, Picarro, G2401).

Research/Observation Period

2018-10-24 〜 2018-12-07

Research/Observation Area

N: 73.868889, S: 40.168889, W: 208.000000 E: 141.551944,
Data Registration
13:26 on Tue December 27, 2016
Last Update
10:42 on Wed July 18, 2018