Data Policy
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."
Version
2025-01-16-2354 (Last updated: 2025-01-20)File
This data set is submitted by MRI.
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 | 48 |
|---|---|
| Acronym | MRI |
| Name | Meteorological Research Institute |
| Address 1 | Department of Climate and Geochemistry Research |
| Address 2 | Meteorological Research Institute |
| Address 3 | 1-1 Nagamine, Tsukuba, 305-0052, Japan |
| Country/Territory | Japan |
| Website | https://www.mri-jma.go.jp/index_en.html |
Contact(s)
| Name | Hidekazu Matsueda |
|---|---|
| Prefix | |
| k20007@dokkyo.ac.jp | |
| Organization No | 48 |
| Organization acronym | MRI |
| Organization name | Meteorological Research Institute |
| Organization country/territory | Japan |
| Address 1 | |
| Address 2 | |
| Address 3 | Nagamine 1-1, Tsukuba, Ibaraki 305-0052, Japan |
| Country/territory | Japan |
| Tel | +81-29-853-8723 |
| Fax | |
| Last updated date | 2025-01-16 |
| Name | Masao Ishii |
|---|---|
| Prefix | |
| mishii@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 | Nagamine 1-1, Tsukuba, Ibaraki 305-0052, Japan |
| Country/territory | Japan |
| Tel | ＋81-29-853-8722 |
| Fax | |
| Last updated date | 2025-01-16 |
| Name | Kazuhiro Tsuboi |
|---|---|
| Prefix | Mr. |
| tsuboi@met.kishou.go.jp | |
| Organization No | 48 |
| Organization acronym | MRI |
| Organization name | Meteorological Research Institute |
| Organization country/territory | Japan |
| Address 1 | 1-1, Nagamine |
| Address 2 | Tsukuba |
| Address 3 | Ibaraki 305-0052 |
| Country/territory | Japan |
| Tel | +81-3-3434-9127 |
| Fax | |
| Last updated date | 2025-04-28 |
| Background observation | |
| UTC+09:00 | |
| ppb | |
|
9999-12-31 00:00:00 - 9999-12-31 23:59:59: MRI scale |
|
|
9999-12-31 00:00:00 - 1986-12-31 23:59:59: Shimadzu GC-5A(Gas chromatography (FID)) 1987-01-01 00:00:00 - 9999-12-31 23:59:59: Shimadzu GC-16A(Gas chromatography (FID)) |
|
| event | |
| Details of measurement and calibration methods are reported by Matsueda et al. (1992, 1996) (See reference section). All of the measurements are re-calculated based on the MRI scale ("corrected" DF/NSC scale). The differences between the MRI and WMO scales are less than 3 ppb, as reported by Tsuboi et al. (2016, 2017) (See reference section). | |
|
[Hourly] [Daily] [Monthly] |
|
| Temporarily suspended | |
| Sampling_height is about 10-20 m above sea level. | |
|
Wind direction: Wind speed: Relative humidity: Precipitation amount: Air pressure: Air temperature: Dew point temperature: Sea water temperature: Sea surface water temperature: Sea water salinity: Sea surface water salinity: |
|
|
Meteorological data may remain as first provided, even when greenhouse gas data are updated. |
No DOI available
Related information
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.
Please follow the citation format which the data providers or owners indicate.
Hidekazu Matsueda (MRI),
Masao Ishii (MRI),
Kazuhiro Tsuboi (MRI),
Atmospheric CH4
by MRI Research, Ryofu Maru, R/V, Meteorological Research Institute,
dataset published as CH4_RFM8035_ship-flask_MRI_data1 at WDCGG,
ver. 2025-01-16-2354 (Reference date*: YYYY/MM/DD)
* As the reference date, please indicate the date you downloaded the files.
* As the reference date, please indicate the date you downloaded the files.
Reference(s)
| 1 | Matsueda, H., K. Tsuboi, S. Takatsuji, T. Kawasaki, M. Nakamura, K. Saito, A. Takizawa, K. Dehara, and S. Hosokawa (2018) Evaluation of a new methane calibration system at JMA for WCC Round Robin experiments, Papers in Meteorology and Geophysics, 67, 57–67, doi:10.2467/mripapers.67.57. |
|---|---|
| 2 | Matsueda, H., H. Inoue, and Y. Sugimura (1992), Atmospheric methane over the western Pacific and the Antarctic Ocean from 1978 to 1986, Geochemical Journal, 26, 21-28, doi:10.2343/geochemj.26.21. |
| 3 | Matsueda, H. (1993), Intercalibration experiment of methane standard gas scale between NOAA/CMDL and MRI/GRL, Papers in Meteorology and Geophysics, 44, 45-56, doi:10.2467/mripapers.44.45. |
| 4 | Matsueda, H., H.Y. Inoue, M. Ishii, and Y. Nogi (1996), Atmospheric methane over the North Pacific from 1987 to 1993, Geochemical Journal, 30, 1-15, doi:10.2343/geochemj.30.1. |
| 5 | Matsueda, H., Y. Sawa, A. Wada, H. Y. Inoue, K. Suda, Y. Hirano, K. Tsuboi, and S. Nishioka (2004), Methane standard gases for atmospheric measurements at the MRI and JMA and intercomparison experiments, Papers in Meteorology and Geophysics, 54, 91-109, doi:10.2467/mripapers.54.91. |
| 6 | Tsuboi, K., H. Matsueda, Y. Sawa, Y. Niwa, M. Takahashi, S. Takatsuji, T. Kawasaki, T. Shimosaka, T. Watanabe, and K. Kato (2016), Scale and stability of methane standard gas in JMA and comparison with MRI standard gas, Papers in Meteorology and Geophysics, 66, 15−24, doi:10.2467/mripapers.66.15. |
| 7 | Tsuboi, K., T. Nakazawa, H. Matsueda, T. Machida, S. Aoki, S. Morimoto, D. Goto, T. Shimosaka, K. Kato, N. Aoki, T. Watanabe, H. Mukai, Y. Tohjima, K. Katsumata, S. Murayama, S. Ishidoya, T. Fujitani, H. Koide, M. Takahashi, T. Kawasaki, A. Takizawa, and Y. Sawa (2017), InterComparison Experiments for Greenhouse Gases Observation (iceGGO) in 2012–2016, Technical Reports of the Meteorological Research Institute, No. 79, 1-72, doi:10.11483/mritechrepo.79. |
