CO₂ _ EOM _ aircraft - flask _ NIES _ data1

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In line with the GAW Data Policy, users should contact the contributors of all data of interest and propose co-authorship or acknowledgement.

Organization

NO	53
Acronym	NIES
Name	National Institute for Environmental Studies
Address 1
Address 2	National Institute for Environmental Studies
Address 3	16-2 Onogawa, Tsukuba 305-8506, Japan
Country/Territory	Japan
Website	https://www.nies.go.jp/index-e.html

Contact(s)

Last updated date	2024-06-25
Name	Toshinobu Machida
Prefix
Email	tmachida@nies.go.jp
Organization No	53
Organization acronym	NIES
Organization name	National Institute for Environmental Studies
Organization country/territory	Japan
Address 1
Address 2
Address 3	16-2 Onogawa, Tsukuba 305-8506, Japan
Country/territory	Japan
Tel	+81-29-850-2525
Fax	+81-29-858-2645

Last updated date	2024-06-25
Name	Yosuke Niwa
Prefix
Email	niwa.yosuke@nies.go.jp
Organization No	53
Organization acronym	NIES
Organization name	National Institute for Environmental Studies
Organization country/territory	Japan
Address 1
Address 2
Address 3
Country/territory	Japan
Tel	+81-29-850-2537
Fax	+81-29-858-2219

Last updated date	2024-08-13
Name	Kentaro ISHIJIMA
Prefix	Dr.
Email	ishijima@mri-jma.go.jp
Organization No	48
Organization acronym	MRI
Organization name	Meteorological Research Institute
Organization country/territory	Japan
Address 1
Address 2	Department of Climate and Geochemistry Research
Address 3	1-1 Nagamine, Tsukuba, Ibaraki 305-0052
Country/territory	Japan
Tel	+81-29-853-8725
Fax

Last updated date	2024-06-25
Name	Yousuke Sawa
Prefix
Email	ysawa@mri-jma.go.jp
Organization No	48
Organization acronym	MRI
Organization name	Meteorological Research Institute
Organization country/territory	Japan
Address 1
Address 2
Address 3	1-1, Nagamine, Tsukuba, Ibaraki 305-0052, Japan
Country/territory	Japan
Tel	+81-29-853-8722
Fax

Collaborator(s)

NO	48
Acronym	MRI
Name	Meteorological Research Institute

Aim of Observation

Background observation

Data Time zone

UTC

Unit

ppm

Calibration Scale

9999-12-31 00:00:00 - 9999-12-31 23:59:59: NIES09

Instrument(s)

9999-12-31 00:00:00 - 2005-11-30 23:59:59: Rosemount Binos 4.1b(NDIR)
2005-12-01 00:00:00 - 9999-12-31 23:59:59: LI-COR ( LI-6252 or LI-6262)(NDIR)

Intake Height above ground level

9999-12-31 00:00:00 - 9999-12-31 23:59:59: NA (m)

Sampling Frequency

event

Measurement Calibration

NIES09 CO2 scale is lower than the WMO-X2007 CO2 scale by 0.07 ppm at around 360ppm and consistent in the range between 380 and 400 ppm (Machida et al., 2011), though it is advisable to check results of the latest round robin intercomparison: https://www.esrl.noaa.gov/gmd/ccgg/wmorr/

Reference:
Machida, T., Y. Tohjima, K. Katsumata, and H. Mukai (2011), A new CO2 calibration scale based on gravimetric one-step dilution cylinders in National Institute for Environmental Studies -NIES 09 CO2 scale, GAW Rep. 194, pp. 114-119, World Meteorol. Organ., Geneva, Switzerland.

Data Processing

All of the CO2 data reported here can be used considering an overall uncertainty of less than 0.1ppm, although it is noted that an appropriate data selection is necessary for making time-series data sets of mean CO2, as reported by Matsueda et al.(2002a), and Matsueda et al. (2008).

Processing for averaging

[Hourly]
[Daily]
[Monthly]

Original Data Quality Flag

Data Quality Flag (Valid/Invalid)

Observation Status

Operational/Reporting

Description

If these data have an important part in the User's Product, the User must contact the Author concerning co-authorship before publication. Citing this data set as described below and acknowledging the Author are enough when these data play a minor role in the User's Product (e.g., global analyses such as inverse modeling).

When this data set is referred to in publications, it should be cited in the following format
Machida T., H. Matsueda, Y. Sawa, Y. Niwa, K. Tsuboi, K. Ishijima, K. Katsumata, S. Murayama, S. Morimoto, D. Goto, S. Aoki and M. Sasakawa (2023), Atmospheric trace gas data from the CONTRAIL flask air sampling, ver. 2024.1.0, Center for Global Environmental Research, NIES, DOI:10.17595/20230725.001 (Reference date *: YYYY/MM/DD)
* As the reference date, please indicate the date you downloaded the files.

When generally referring to the flask sampling data of CONTRAIL, please also cite Sawa et al. (2015), Matsueda et al. (2015) and Machida et al. (2008). Furthermore, the User is encouraged to cite relevant paper(s) listed below
(see http://www.cger.nies.go.jp/contrail/pubs.html for more references).

Meteorological Data Availability
(1: Available)

Wind direction: 0
Wind speed: 0
Relative humidity: 0
Precipitation amount: 0
Air pressure: 1
Air temperature: 0
Dew point temperature: 0
Sea water temperature: 0
Sea surface water temperature: 0
Sea water salinity: 0
Sea surface water salinity: 0

Meteorological Data Description

Meteorological data may remain as first provided, even when greenhouse gas data are updated.

DOI Metadata

DOI

co2_eom_aircraft-flask_53_9999-9999_event.nc	10.17595/20230725.001
co2_eom_aircraft-flask_53_9999-9999_event.txt	10.17595/20230725.001
co2_eom_aircraft-flask_53_9999-9999_event_met.nc	10.17595/20230725.001
co2_eom_aircraft-flask_53_9999-9999_event_met.txt	10.17595/20230725.001

For more information, please refer: doi.org/10.17595/20230725.001

Related information

Format	Text (WDCGG Data Format Table, WDCGG Meteorological Data Format Table), NetCDF
Relation List (Is Part Of)	All CO₂ data contributed to WDCGG by GAW stations and mobiles by 2024-09-24 All CO₂ data contributed to WDCGG by GAW stations and mobiles by 2023-09-13 All CO₂ data contributed to WDCGG by GAW stations and mobiles by 2018-10-25

GAW Data Policy

"For Scientific purposes, access to these data is unlimited and provided without charge. By their use you accept that an offer of co-authorship will be made through personal contact with the data providers or owners whenever substantial use is made of their data. In all cases, an acknowledgement must be made to the data providers or owners and to the data centre when these data are used within a publication."

Citation format

This format is an example of the WDCGG standard citation.
Please follow the citation format which the data providers or owners indicate.

Toshinobu Machida (NIES), Yosuke Niwa (NIES), Kentaro ISHIJIMA (MRI), Yousuke Sawa (MRI), Atmospheric CO₂ by CONTRAIL, National Institute for Environmental Studies, dataset published as CO₂_EOM_ aircraft-flask_NIES_data1 at WDCGG, ver. 2024-06-25-1613 (Reference date^*: YYYY/MM/DD)

* As the reference date, please indicate the date you downloaded the files.

Reference(s)

1	Machida T., H. Matsueda, Y. Sawa, Y. Niwa, K. Tsuboi, K. Ishijima, K. Katsumata, S. Murayama, S. Morimoto, D. Goto, S. Aoki and M. Sasakawa (2023), Atmospheric trace gas data from the CONTRAIL flask air sampling, ver. 2024.1.0, Center for Global Environmental Research, NIES, DOI:10.17595/20230725.001 (Reference date : YYYY/MM/DD) As the reference date, please indicate the date you downloaded the files.
2	Machida, T., H. Matsueda, Y. Sawa, Y. Nakagawa, K. Hirotani, N. Kondo, K. Goto, N. Nakazawa, K. Ishikawa and T.Ogawa (2008), Worldwide measurements of atmospheric CO2 and other trace gas species using commercial airlines, J. Atmos. Oceanic Technol., 25(10), 1744-1754, doi:10.1175/2008JTECHA1082.1.
3	Matsueda, H., H. Y. Inoue, and M. Ishii (2002), Aircraft observation of carbon dioxide at 8-13 km altitude over the western Pacific from 1993 to 1999, Tellus, 54B,1-21, doi:10.3402/tellusb.v54i1.16645.
4	Matsueda, H., T. Machida, Y. Sawa, Y. Nakagawa, K. Hirotani, H. Ikeda, N. Kondo, and K. Goto (2008), Evaluation of atmospheric CO2 measurements from new flask air sampling of JAL airliner observations, Pap. Meteorolo. Geophys., 59, 1-17, doi:10.2467/mripapers.59.1.
5	Matsueda, H., T. Machida, Y. Sawa, Y. Niwa (2015), Long-term change of CO2 latitudinal distribution in the upper troposphere, Geophys. Res. Lett., 42, doi:10.1002/2014GL062768.
6	Sawa, Y., T. Machida, H. Matsueda, Y. Niwa, K. Tsuboi, S. Murayama, S. Morimoto, S. Aoki (2015), Seasonal changes of CO2, CH4, N2O, and SF6 in the upper troposphere/lower stratosphere over the Eurasian continent observed by commercial airliner, Geophys. Res. Lett., 42, doi:10.1002/2014GL062734.
7	Umezawa, T., T. Machida, K. Ishijima, H. Matsueda, Y. Sawa, P. K. Patra, S. Aoki, and T. Nakazawa (2012), Carbon and hydrogen isotopic ratios of atmospheric methane in the upper troposphere over the Western Pacific, Atmos. Chem. Phys., 12, 8095-8113, doi:10.5194/acp-12-8095-2012.

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