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 | 57 |
|---|---|
| Acronym | NIWA |
| Name | National Institute of Water & Atmospheric Research Ltd. |
| Address 1 | NIWA - Wellington |
| Address 2 | Private Bag 14901, Kilbirnie, Wellington, 6241 |
| Address 3 | 301 Evans Bay Parade, Hataitai, Wellington 6021 |
| Country/Territory | New Zealand |
| Website | http://www.niwa.co.nz |
Contact(s)
| Name | Gordon Brailsford |
|---|---|
| Prefix | |
| gordon.brailsford@niwa.co.nz | |
| Organization No | 57 |
| Organization acronym | NIWA |
| Organization name | National Institute of Water & Atmospheric Research Ltd. |
| Organization country/territory | New Zealand |
| Address 1 | |
| Address 2 | |
| Address 3 | |
| Country/territory | New Zealand |
| Tel | |
| Fax | |
| Last updated date | 2024-08-13 |
| Name | Sylvia Nichol |
|---|---|
| Prefix | |
| sylvia.nichol@niwa.co.nz | |
| Organization No | 57 |
| Organization acronym | NIWA |
| Organization name | National Institute of Water & Atmospheric Research Ltd. |
| Organization country/territory | New Zealand |
| Address 1 | |
| Address 2 | |
| Address 3 | |
| Country/territory | New Zealand |
| Tel | |
| Fax | |
| Last updated date | 2024-06-26 |
| Background observation | |
| UTC+12:00 | |
| permil | |
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1991-01-01 00:00:00 - 9999-12-31 23:59:59: VPDB |
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1991-01-01 00:00:00 - 1995-12-31 23:59:59: Nuclide Analysis Associates 6-60 Mass Spectrometer(Mass spectrometry) 1996-01-01 00:00:00 - 9999-12-31 23:59:59: Finnigan MAT 252(Mass spectrometry) |
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| event | |
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Two working reference gases with 13C/12C ratio close to -47 permille are calibrated annually vs CO2 evolved from NBS19. Whole air samples are processed cryogenically and methane is oxidised quantitatively on platinised alumina at 750 degrees celcius. The resulting CO2 from the combustion is cryogenically distilled and transferred to a glass sample bottle. Samples are then measured for 13C/12C ratio. Working reference gas voltage is set to match sample voltage 3 sets of 10 determinations of sample vs reference Idle time 15sec; Integration 8 sec |
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[Hourly] [Daily] [Monthly] |
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| Operational/Reporting | |
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Wind direction: 1 Wind speed: 1 Relative humidity: 0 Precipitation amount: 0 Air pressure: 0 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 |
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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 13CH4 data contributed to WDCGG by GAW stations and mobiles by 2024-07-01 All 13CH4 data contributed to WDCGG by GAW stations and mobiles by 2023-07-20 All 13CH4 data contributed to WDCGG by GAW stations and mobiles by 2022-07-13 All 13CH4 data contributed to WDCGG by GAW stations and mobiles by 2021-07-07 All 13CH4 data contributed to WDCGG by GAW stations and mobiles by 2020-09-02 All 13CH4 data contributed to WDCGG by GAW stations and mobiles by 2019-09-03 All 13CH4 data contributed to WDCGG by GAW stations and mobiles by 2018-10-18 |
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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.
Gordon Brailsford (NIWA),
Sylvia Nichol (NIWA),
Atmospheric 13CH4
at Arrival Heights by National Institute of Water & Atmospheric Research Ltd.
,
dataset published as 13CH4_ARH_
surface-flask_NIWA_data1 at WDCGG,
ver. 2024-06-26-2120 (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 | Lowe at al., J. Geophys. Res., 96, 15455-15467, 1991. |
|---|---|
| 2 | Lowe at al., J. Geophys. Res., 99, 16913-16925, 1994. |
