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 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)

Name Yasunori TOHJIMA
Prefix Dr.
Email tohjima@nies.go.jp
Organization No 53
Organization acronym NIES
Organization name National Institute for Environmental Studies
Organization country/territory Japan
Address 1
Address 2 National Institute for Environmental Studies
Address 3 16-2, Onogawa, Tsukuba-shi, Ibaraki 305-8506, Japan
Country/territory Japan
Tel
Fax
Last updated date 2023-06-28


 Background observation
 UTC+09:00
 ppb
 9999-12-31 00:00:00 - 9999-12-31 23:59:59: NIES96
 9999-12-31 00:00:00 - 9999-12-31 23:59:59: Hewlett Packard
5890 II(Gas chromatography (ECD))
 9999-12-31 00:00:00 - 9999-12-31 23:59:59: 36.5 (m)
 Unknown
 Primary standard gases are gravimetrically prepared N2O-in-air mixtures.
Three working standard gases of different N2O concentration are injected every hour. N2O concentrations of air samples are calculated with calibration curves, which are determined by the data from the two sets of the working standard gases, measured just before and after the set of the air samples.
The working standard gases are calibrated against primary standard gases at NIES before and after their use.
 All data obtained during normal operation of the measurement apparatus are reported.
 [Hourly]
 [Daily] Daily mean concentrations are calculated by averaging the hourly data obtained during the reported day.
 [Monthly] Monthly mean concentrations are calculated by averaging the daily data obtained during the reported month.
 9 : The daily mean calculated with lesser than twelve hourly data or the monthly mean calculated with lesser than twenty daily data.
 Valid: 9
 Temporarily suspended
 The height of the air intake is 36.5 meters above ground level (46.5 meters above mean sea-level). The air samples are dried first by a Nafion® tube dryer and then by a cold trap (-40 °C).
The interval between air sample measurements is 10 minutes.
Study of long-term trends in the level of atmospheric N2O, as one of the baseline monitoring stations for the global environmental research and the policy-making communities.
 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

Format Text (WDCGG Data Format Table, WDCGG Meteorological Data Format Table), NetCDF
Relation List (Is Part Of) All N2O data contributed to WDCGG by GAW stations and mobiles by 2023-09-13
All N2O data contributed to WDCGG by GAW stations and mobiles by 2022-09-05
All N2O data contributed to WDCGG by GAW stations and mobiles by 2021-08-24
All N2O data contributed to WDCGG by GAW stations and mobiles by 2020-09-28
All N2O data contributed to WDCGG by GAW stations and mobiles by 2019-09-19
All N2O data contributed to WDCGG by GAW stations and mobiles by 2018-10-23
Geolocation Point
Latitude (north: +; south: -) 24.06069
Longitude (east: +; west: -) 123.80939

 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.
Yasunori TOHJIMA (NIES), Atmospheric N2O at Hateruma Island by National Institute for Environmental Studies , dataset published as N2O_HAT_ surface-insitu_NIES_data1 at WDCGG, ver. 2023-06-30-1943 (Reference date*: YYYY/MM/DD)

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

 Reference(s)

1  Tohjima Y., Mukai H., Maksyutov S., Takahasji Y., Machida T., Katsumoto M., and Fujinuma Y., 2000 : Variations in atmospheric nitrous oxide observed at Hateruma monitoring station. Chemoshere-Global Change Sci., 2, 435-443.