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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 ONO Etsuro
Prefix Mr.
Email seadata@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 +81-3-6758-3900 (ex.4657)
Fax
Last updated date 2023-08-21


Name ENYO Kazutaka
Prefix Mr.
Email seadata@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 +81-3-6758-3900 (ex.4619)
Fax
Last updated date 2023-08-21


 Background observation
 UTC+09:00
 ppm
 9999-12-31 00:00:00 - 9999-12-31 23:59:59: WMO CO2 X2007
 9999-12-31 00:00:00 - 9999-12-31 23:59:59: OHKURA-ROSEMOUNT Manufacturing Co. Ltd.(NDIR)
 event
 Hierarchy of standards

The laboratory primary standard gases are calibrated by WMO reference standard gases.
The laboratory secondary standard gases are calibrated by the laboratory primary standard gases.
The working standard gases in the station are calibrated by the laboratory secondary standard gases.

Frequency of calibration and latest calibration

The laboratory primary standard gases are calibrated by WMO reference standard gases at WMO CCL every 2 years.
The latest calibration at CCL was performed in December 2010.
The laboratory secondary standard gases are calibrated by the laboratory primary standard gases every 6 months.
The working standard gases in the station are calibrated by the laboratory secondary standard gases before and after use (period of use is about 6 months).

Calibration history
Calibration date (Calibration standard)
1st generation
Oct. 1986 at SIO (WMO X85)
2nd generation
Apr. 1991 at SIO (WMO X87)
3rd generation
Oct. 1995 at SIO (WMO X95)
Dec. 2003 at NOAA (WMO Mole Fraction)
4th generation
Jan. 1999 at NOAA (WMO Mole Fraction)
Sep. 2005 at NOAA (WMO X2005)
5th generation
Jan. 2002 at NOAA (WMO Mole Fraction)
Sep. 2008 at NOAA (WMO X2007)
6th generation
Oct. 2006 at NOAA (WMO Mole Fraction)
7th generation
Dec. 2010 at NOAA (WMO X2007)

Information on intercomparison

1st WMO CO2 round robin 1991/1992 (WMO, CMDL: 1991-1992)
Analysis date: Jun. 1992
Remark: WMO/GAW report No.88

2nd WMO CO2 round robin 1995/1997 (WMO, CMDL: 1995-1997)
Analysis date: Jan. 1997
Remark: WMO/GAW report No.132

3rd WMO CO2 round robin 1999/2000 (WMO, CMDL: 1999-2000)
Analysis date: Aug. 1999
Remark:https://www.data.jma.go.jp/gmd/wcc/co2/wmo_rr99.html

4th WMO CO2 round robin 2002/2007 (WMO, CMDL: 2002-2007)
Analysis date: Jan. 2004
Remark: WMO/GAW report No.186

5th WMO CO2 round robin 2009/-(WMO, ESRL: ongoing)
Analysis date: Jun. 2009

Calibration gases used: CO2 in purified natural air, every hour.
 
 [Hourly]
 [Daily]
 [Monthly]
 Flag information is not reported.
Only validated data are reported except for -9999999.9.
-9999999.9 represents missing or invalid data.
 Terminated
 The measurements for air and surface sea water are carried out. The height of intake for air sample is about 7 meters above sea surface. The depth of the intake for sea water sample is about 4 meters below sea surface. The water is introduced into the equilibrator. Both introduced ambient air and equilibrated air are dried using electronic coolong unit, perma pure dryer and chemical desiccant (Mg(ClO4)2).
Continuous NDIR analizer.
 Wind direction: 1
 Wind speed: 1
 Relative humidity: 0
 Precipitation amount: 0
 Air pressure: 1
 Air temperature: 1
 Dew point temperature: 0
 Sea water temperature: 0
 Sea surface water temperature: 1
 Sea water salinity: 0
 Sea surface water salinity: 1
Meteorological data may remain as first provided, even when greenhouse gas data are updated.
 
No DOI available

 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 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

 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.
ONO Etsuro (JMA), ENYO Kazutaka (JMA), Atmospheric CO2 by Kofu Maru, R/V, Japan Meteorological Agency, dataset published as CO2_KOF_ ship-insitu_JMA_air-sampling at WDCGG, ver. 2023-08-21-1456 (Reference date*: YYYY/MM/DD)

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

 Reference(s)

No data available