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 Organization

NO 1
Acronym JMA
Name Japan Meteorological Agency
Address 1
Address 2
Address 3 3-6-9 Toranomon, Minato City, Tokyo 105-8431
Country/Territory Japan
Website https://www.jma.go.jp/jma/indexe.html

 Contact(s)

Name TAKATSUJI Shinya
Prefix Mr.
Email ghg_obs@met.kishou.go.jp
Organization No 1
Organization acronym JMA
Organization name Japan Meteorological Agency
Organization country/territory Japan
Address 1 Atmosphere and Ocean Department
Address 2 Atmospheric Environment and Ocean Division
Address 3 3-6-9 Toranomon, Minato City, Tokyo 105-8431
Country/territory Japan
Tel +81-3-3434-9127
Fax
Last updated date 2024-03-11


 Background observation
 UTC+09:00
 ppm
 1993-01-01 00:00:00 - 9999-12-31 23:59:59: WMO CO2 X2019
 1993-01-01 00:00:00 - 2009-12-31 23:59:59: HORIBA, Ltd. VIA-510R(NDIR)
 2010-01-01 00:00:00 - 9999-12-31 23:59:59: LI-COR Biosciences, Inc. LI-7000(NDIR)
 1993-01-01 00:00:00 - 9999-12-31 23:59:59: 20 (m)
 30 seconds
 The quadratic fitting curve is determined every 2 hours by a set of 5 working standard gases of CO2-in-natural air mixtures in different concentrations. The mole fraction is determined by this fitting curve.
 The raw data from instrument is collected by the data acquisition system, and stored in the system as every 30 seconds raw data. CO2 measurements are checked at the site by an operator every day. All irregular measurements and information are recorded in a log book. Measurement data are transmitted to the headquarters every month and are checked again there. Finally, the measurement data are checked and validated by the contributor at the headquarters. For the working standard gases and sample air, analyzer output voltages measured every second are averaged over 30 seconds.
 [Hourly] Hourly data are taken from the arithmetic mean of observed data for one hour after the irregular and evident error data are rejected. For the details of background hourly data, please refer to https://www.data.jma.go.jp/gmd/env/ghg_obs/JMA_flag.html
 [Daily] Daily data are taken from the arithmetic mean of background hourly data. For the details of background hourly data, please refer to https://www.data.jma.go.jp/gmd/env/ghg_obs/JMA_flag.html
 [Monthly] Monthly data are taken from the arithmetic mean of background hourly data. For the details of background hourly data, please refer to https://www.data.jma.go.jp/gmd/env/ghg_obs/JMA_flag.html
 Hourly data
0-6: no background condition
7: background condition
9: missing
Daily and Monthly data
2: no valid hourly data
3: valid 9: missing
The flag has a positive or negative value. The concentration with the flag of a negative number is provisional and the selection is the same.
For the details, please refer to
https://www.data.jma.go.jp/gmd/env/ghg_obs/JMA_flag.html
 Operational/Reporting
 Continuous flow of 0.5 liters per minute, data is analyzed every 30 seconds.
 Wind direction: 1
 Wind speed: 1
 Relative humidity: 1
 Precipitation amount: 1
 Air pressure: 1
 Air temperature: 1
 Dew point temperature: 1
 Sea water temperature: 0
 Sea surface water temperature: 0
 Sea water salinity: 0
 Sea surface water salinity: 0
Meteorological data may remain as first provided, even when greenhouse gas data are updated.
 

 DOI Metadata

DOI
co2_mnm_surface-insitu_1_9999-9999_hourly.nc 10.50849/WDCGG_0001-2029-1001-01-01-9999
co2_mnm_surface-insitu_1_9999-9999_hourly.txt 10.50849/WDCGG_0001-2029-1001-01-01-9999
co2_mnm_surface-insitu_1_9999-9999_daily.nc 10.50849/WDCGG_0001-2029-1001-01-01-9999
co2_mnm_surface-insitu_1_9999-9999_daily.txt 10.50849/WDCGG_0001-2029-1001-01-01-9999
co2_mnm_surface-insitu_1_9999-9999_monthly.nc 10.50849/WDCGG_0001-2029-1001-01-01-9999
co2_mnm_surface-insitu_1_9999-9999_monthly.txt 10.50849/WDCGG_0001-2029-1001-01-01-9999
co2_mnm_surface-insitu_1_9999-9999_hourly_met.nc 10.50849/WDCGG_0001-2029-1001-01-01-9999
co2_mnm_surface-insitu_1_9999-9999_hourly_met.txt 10.50849/WDCGG_0001-2029-1001-01-01-9999
Version 2024-03-11-0135 (Data Version History)
* DOIs and file names may have multiple versions. Be sure to check the data version.
Title Atmospheric CO2 at Minamitorishima by Japan Meteorological Agency, dataset published as CO2_MNM_surface-insitu_JMA_data1 at WDCGG
Creator Japan Meteorological Agency
TAKATSUJI Shinya (JMA)
Publisher World Data Centre for Greenhouse Gases
Publication Date 2016-12-20 (Last Updated: 2024-03-13)
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 2023-09-13
All CO2 data contributed to WDCGG by GAW stations and mobiles by 2022-09-07
All CO2 data contributed to WDCGG by GAW stations and mobiles by 2021-09-08
All CO2 data contributed to WDCGG by GAW stations and mobiles by 2020-09-28
All CO2 data contributed to WDCGG by GAW stations and mobiles by 2019-09-19
All CO2 data contributed to WDCGG by GAW stations and mobiles by 2018-10-25
Geolocation Point
Latitude (north: +; south: -) 24.2883
Longitude (east: +; west: -) 153.9833

 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.
TAKATSUJI Shinya (JMA), Atmospheric CO2 at Minamitorishima by Japan Meteorological Agency , dataset published as CO2_MNM_ surface-insitu_JMA_data1 at WDCGG, ver. 2024-03-11-0135, https://doi.org/10.50849/WDCGG_0001-2029-1001-01-01-9999 (Reference date*: YYYY/MM/DD)

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

 Reference(s)

1  JMA, Observation method of the greenhouse gas http://www.data.jma.go.jp/gmd/env/ghg_obs/en/
2  F. Watanabe, O. Uchino, Y. Joo, M. Aono, K. Higashijima, Y. Hirano, K. Tsuboi and K. Suda: Interannual variation of growth rate of atmospheric carbon dioxide concentration observed at the JMA's three monitoring stations: Large increase in concentration of atmospheric carbon dioxide in 1998. Journal of Meteorological Society of Japan, Vol.78, No.5. 673-682, 2000.
3  Tsutsumi, Y., H. Matsueda, S. Nishioka, Consistency of the CO2 primary standards in JMA, 12th WMO/IAEA meeting of experts on carbon dioxide concentration and related tracers measurement techniques (Toronto, Canada, 15-18 September 2003), Global Atmosphere Watch Report No. 161 (WMO/TD-No.1275), 23-31, 2005.