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 | 71 |
|---|---|
| Acronym | UBAG |
| Name | German Environment Agency |
| Address 1 | Umweltbundesamt, Wörlitzer Platz 1, 06844 Dessau-Roßlau |
| Address 2 | Umweltbundesamt (Federal Environment Agency) FG II4.5, Air Monitoring Network, Paul-Ehrlich-Str. 29, 63225 Langen |
| Address 3 | |
| Country/Territory | Germany |
| Website | https://www.umweltbundesamt.de/gaw |
Contact(s)
| Name | Cedric Couret |
|---|---|
| Prefix | Ing. |
| cedric.couret@uba.de | |
| Organization No | 71 |
| Organization acronym | UBAG |
| Organization name | German Environment Agency |
| Organization country/territory | Germany |
| Address 1 | Umweltbundesamt, Umweltforschungsstation Schneefernerhaus, Zugspitze 5, 82475 Zugspitze |
| Address 2 | |
| Address 3 | |
| Country/territory | Germany |
| Tel | +498821924110 |
| Fax | |
| Last updated date | 2024-07-18 |
| Background observation | |
| UTC | |
| ppb | |
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2002-01-01 00:00:00 - 2004-12-31 22:59:59: WMO CO X2000 2004-12-31 23:00:00 - 2013-12-31 22:59:59: WMO CO X2004 2013-12-31 23:00:00 - 2014-12-31 22:59:59: WMO CO X2014 2014-12-31 23:00:00 - 9999-12-31 23:59:59: WMO CO X2014A |
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9999-12-31 00:00:00 - 2015-05-18 12:59:59: Thermo Environmental Instruments Inc. Aerolaser 5002(VURF) 2015-05-18 13:00:00 - 2015-05-26 12:59:59: Unknown(Gas chromatography (RGD)) 2015-05-26 13:00:00 - 2015-12-31 22:59:59: Thermo Environmental Instruments Inc. Aerolaser 5001(VURF) 2015-12-31 23:00:00 - 2023-12-31 23:59:59: LosGatosResearch QCL N2O/CO 30r, ICOS #1073(off-axis integrated cavity output spectroscopy (OA-ICOS)) 2022-01-01 00:00:00 - 2024-03-31 23:59:59: Picarro G2401, ICOS #1167(CRDS) 2023-01-01 00:00:00 - 9999-12-31 23:59:59: Picarro G5310, ICOS #1482(CRDS) |
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2001-01-01 00:00:00 - 9999-12-31 23:59:59: 3.00 (m) |
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| 1 minute | |
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All data are based on WMO mole fraction scale. (NOAA/CMDL) Calibration gas: CO in natural gas. Calibrations are carried out every 3 hours with UV-fluorescence aero laser instruments either AL5001 or Al5002 from 2004 until 2018. Since 2016 a Los Gatos is used in parallel for measurement and data delivery. The working Standard has been adjusted to the actual WMO Standard reference scale by the use of a group of 4-6 NOAA station standards with an annual recheck and correction if needed. Calibration of the LGR Data N2O and CO: Calibration gas: N2O and CO in natural air. The correction of the data is carried out every 8 hours using a short term standard tank. The short term tank is calibrated every 3 days by the use of 2 Standard Tanks: 1 High and 1 low. The high and low standards are calibrated every 2 months by the use of a group of 4-6 NOAA station standards from the NOAA/CMDL Carbon Group. A target tank is measured every 3 days to detect any drift/issue. The NOAA station standards envelope the actual atmospheric concentrations of N2O and CO. Current Scale: WMO mole fraction scale From the 13th of January 2021, ICOS standard are used to calibrate the instruments. |
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All values are quality controlled. Processing of Aerolaser UV-Vis CO Data. Since 2004 Aerolaser UV-VIs Data are stored as 1min Data in a relational database. 1min data are screened graphical with a self produced tool, called Dafit. See also description on Website www.gawstat.de For Validation local Pollution, calibrations and short time Peaks, as power failures, Instrument repairs etc. are flagged. The digital log-book and if required, trajectories and co correlation with simultaneously measured data are used, in order to verify, the CO data. From the flagged data 30min, 60min, 1day, 1month and 1year data are calculated in a standardized way in one step. Processing of GC Data With a software, called GC-Organizer, written by the team of I.Levin at University of Heidelberg the measured 5 min raw data are visually controlled in respect to outliers and the standard deviation during measurement of the standards. Outliers are removed with this graphical tool. After this pre-check 30 min atmospheric concentrations and standard deviation of CO2, CH4, SF6 and N2O are calculated with the same software program. Afterwards these 30 min data are imported with a self written software program, called Dafit (Description see: www.gawstat.de). The 30 min data are screened graphically. For a second validation, episodes of local pollution, also power failures, Instrument repairs etc. can be flagged. The digital log-book and if required, trajectories and co correlation with simultaneously measured data are used in to verify the CO2, CH4, N2O and SF6 data. Then from the flagged data for scientific purpose and export aggregation to 60min, 1day and 1month data is calculated in a standardized way for each, simultaneously also files with the WDCGG export format are produced in a standardized way to automate the workflow. Processing of Data from CRDS (Picarro, CO2, CH4 ) and QCL (Los Gatos, N2O, CO) The data acquisition system provides 1-minute averages of the raw data. 1 min data of sample and measurement of calibration gases are automatically retrieved and the data are automatically corrected. Calibration factors are used to convert 1-minute averages into calibrated 1-minute averages. With a self written software program, called Dafit (description see: www.gawstat.de) the data are imported. The data are visualized and artefacts, like spikes, room air, instrument repair, calibrations or mixed air data are flagged. After this step, hourly, daily and monthly means are calculated. Processing from 13.01.2021: Data processing at ICOS ATC is described in [Hazan et al., 2016], doi:10.5194/amt-9-4719-2016 |
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[Hourly] Mean Processing for the Aerolaser data CO The data acquisition system provides one minute mean raw data. From These flagged 1min data (See description under data processing) 1hour mean values are calculated. A mean value only then is calculated, when at least 66% of the underlying 1min data is available. Mean Processing for the LGR data N2O and CO Hourly mean values are generated by calculating the arithmetic mean of the available data within the respective hour. nvalue refers to the number of available 1-minute averages within the respective hour. Mean Processing from 13.01.2021: Data processing at ICOS ATC is described in [Hazan et al., 2016], doi:10.5194/amt-9-4719-2016 [Daily] Mean Processing for the Aerolaser data CO A daily mean value is calculated, using the hourly mean values of the actual daý. Also here the 66% criterion is in use Mean Processing for the LGR data N2O and CO Daily mean values are generated by calculating the arithmetic mean of the available hourly data within the respective day. nvalue refers to the number of available hourly averages within the respective day. Mean Processing from 13.01.2021: Data processing at ICOS ATC is described in [Hazan et al., 2016], doi:10.5194/amt-9-4719-2016 [Monthly] Mean Processing for the Aerolaser data CO Take the arithmetic mean of the actualdaily data and apply the 66% criterion Mean Processing for the LGR data N2O and CO Monthly mean values are generated by calculating the arithmetic mean of the available daily data within the respective month. nvalue refers to the number of available daily averages within the respective month. Mean Processing from 13.01.2021 Data processing at ICOS ATC is described in [Hazan et al., 2016], doi:10.5194/amt-9-4719-2016 |
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Until 12.01.2021, 1: Valid 3: Not Valid From 13.01.2021 Flag 'U' = data correct before manual quality control Flag 'N' = data incorrect before manual quality control Flag 'O' = data correct after manual quality control Flag 'K' = data incorrect after manual quality control Flag 'R' = data correct after manual quality control and backwards propagation Flag 'H' = data incorrect after manual quality control and backwards propagation |
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Valid (background): 1 Invalid: 3 Valid (background): U Invalid: N Valid (background): O Invalid: K Valid (background): R Invalid: H |
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| Operational/Reporting | |
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Inlet System made from stainless steel with an second inner tubing from borosilicate glass. Flow rate 500ltrs/Minute, Residence time of sample 2-3 seconds. Height of the inlet is 2670meters, 2.5 meters above the top of the Roof of 5th floor of the Environment Research Station. |
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Wind direction: 1 Wind speed: 1 Relative humidity: 1 Precipitation amount: 0 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 |
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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.
Cedric Couret (UBAG),
Atmospheric CO
at Zugspitze-Schneefernerhaus by German Environment Agency
,
dataset published as CO_ZSF_
surface-insitu_UBAG_data1 at WDCGG,
ver. 2024-07-15-1104 (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 |
System and Performance Audit of Surface Ozone, Carbon Monoxide, Methane, Carbon Dioxide and Nitrous Oxide at the Global GAW Station Zugspitze-Schneefernerhaus Germany, September 2020 https://library.wmo.int/doc_num.php?explnum_id=10747 |
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| 2 | Data processing at ICOS ATC is described in [Hazan et al., 2016], doi:10.5194/amt-9-4719-2016 |
