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 | 23 |
|---|---|
| Acronym | Empa |
| Name | Swiss Federal Laboratories for Materials Science and Technology |
| Address 1 | Überlandstrasse 129 |
| Address 2 | 8600 Dübendorf |
| Address 3 | Switzerland |
| Country/Territory | Switzerland |
| Website | http://www.empa.ch/gaw |
Contact(s)
| Name | Thomas Seitz |
|---|---|
| Prefix | Dr. |
| thomas.seitz@empa.ch | |
| Organization No | 23 |
| Organization acronym | Empa |
| Organization name | Swiss Federal Laboratories for Materials Science and Technology |
| Organization country/territory | Switzerland |
| Address 1 | |
| Address 2 | |
| Address 3 | Überlandstrasse 129 CH-8600 Dübendorf Switzerland |
| Country/territory | Switzerland |
| Tel | +41 58 765 4655 |
| Fax | |
| Last updated date | 2024-06-26 |
| Background observation | |
| UTC+01:00 | |
| ppb | |
|
9999-12-31 00:00:00 - 2000-12-31 23:59:59: NMI PRM AC11 2001-01-01 00:00:00 - 2006-04-30 23:59:59: NIST SRM 1677c 2006-05-01 00:00:00 - 2011-11-30 23:59:59: NIST SRM 2612a 2011-12-01 00:00:00 - 2016-12-31 23:59:59: NPL PRGM in synth. Air 2017-01-01 00:00:00 - 2021-11-30 23:59:59: NPL PRGM NG677 in synth. Air 2021-12-01 00:00:00 - 9999-12-31 23:59:59: NPL PRGM 2851 in synth. air |
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9999-12-31 00:00:00 - 2007-07-31 11:59:59: APMA 360 (HORIBA Ltd.)(NDIR) 2007-07-31 12:00:00 - 2012-09-05 11:59:59: APMA 370 (HORIBA Ltd.)(NDIR) 2012-09-05 12:00:00 - 2017-11-29 12:41:59: Picarro G2302(CRDS) 2017-11-29 12:42:00 - 2017-12-05 12:11:09: Picarro CO/CO2/CH4/H2O G2401(CRDS) 2017-12-05 12:11:10 - 9999-12-31 23:59:59: Picarro G2302(CRDS) |
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9999-12-31 00:00:00 - 9999-12-31 23:59:59: 5.0 (m) |
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| 5 seconds | |
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manual zero and span calibration every 2 weeks Scale and Calibration (traceability): From 12/1999 until 01/2001: NMI PRM AC11 (10ppm ± 0.08ppm); from 01/2001 until 05/2006: NIST SRM 1677c(10ppm ± 0.05ppm); from 05/2006 to 12/2011: NIST SRM 2612a (10ppm ± 0.12ppm); consistent with WMO-2000; from 12/2011 to 12/2016: NPL PRGM 221708SG in synth. air (10ppm ± 0.04ppm); NPL is traceable to NIST (refer to the NPL homepage) from 01/2017: NPL PRGM NG677 in synth. air (10ppm ± 0.05ppm); since 12/2021:NPL PRGM 2851 in synth. air (3.983ppm ± 0.020ppm); NMI/NPL standards are compared to WMO scales and agree within their uncertainties |
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Quality assurance procedures involve time series plots, consistency checks. Up to 12/2017: aggregate calculations based on 10-minute aggregates with greater than 75% availability Since 01/2018: threshold.1h <- 4 # minimum number of 10-min averages per hour; i.e. mean value is set to NA if number of available data is 1, 2, or 3. threshold.1d <- 16 # minimum number of hourly averages per day threshold.1m <- 18 # minimum number of daily averages per month |
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[Hourly] [Daily] daily] Estimated standard uncertainty for daily aggregates: [1999-12-17 thru 2008-01-01] 2.4 ppbv below 120 ppbv, 2 % otherwise; [2008-01-01 thru 2009-01-01] uncertainty = [(0.0141ppm)^2+(0.0125*c)^2]^0.5; [2009-01-01 thru 2010-01-01] uncertainty = [(0.0191ppm)^2+(0.0070*c)^2]^0.5; [2010-01-01 thru 2016-01-01] uncertainty = [(0.0208ppm)^2+(0.0069*c)^2]^0.5; [2016-01-01 thru 2019-01-01] uncertainty = [(0.021 ppm)^2+(0.028*c)^2]^0.5; Since 2019-01-01 uncertainty = [(0.015 ppm)^2+(0.028*c)^2]^0.5 [Monthly] |
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| Operational/Reporting | |
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Air intake: open-face, ambient Measurement Methods: Horiba instruments: non-dispersive infrared detection (NDIR); Picarro instruments: Cavity Ring Down Spectroscopy CRDS |
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Wind direction: 1 Wind speed: 1 Relative humidity: 1 Precipitation amount: 1 Air pressure: 1 Air temperature: 1 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 CO data contributed to WDCGG by GAW stations and mobiles by 2024-09-24 All CO data contributed to WDCGG by GAW stations and mobiles by 2023-09-13 All CO data contributed to WDCGG by GAW stations and mobiles by 2022-09-05 All CO data contributed to WDCGG by GAW stations and mobiles by 2021-08-27 All CO data contributed to WDCGG by GAW stations and mobiles by 2020-09-28 All CO data contributed to WDCGG by GAW stations and mobiles by 2019-09-19 All CO data contributed to WDCGG by GAW stations and mobiles by 2018-10-25 |
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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.
Thomas Seitz (Empa),
Atmospheric CO
at Rigi by Swiss Federal Laboratories for Materials Science and Technology
,
dataset published as CO_RIG_
surface-insitu_Empa_data1 at WDCGG,
ver. 2024-06-26-1234 (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.
