Trace gas observations with Los Gatos ICOS Analyzers on the FZJ meteorological tower

  • USE OF THE DATA

The data here are provided free of charge and you are free to use them as you like, provided you confer to thte following terms and conditions

  1. The data have been carefully quality checked as described below. However, we do not give any guarantee whatsoever with respect to the accuracy of the data and infomration provided, and under no circumstances will we accept liability claims (if you do find or suspect errors or inconsistencies, please let us know and we will try to fix it).

  2. The data are acquired and provided by Forschungszentrum Jülich GmbH, Institute for Energy and Climate Research, IEK-7: Stratosphere, which should be acknowledged with any use of the data.

  3. In case the data are used extensively (i.e. representing a major contribution) in a scientific publication, please consider offering co-authorship to those making the efforts to acquire and quality check these data.

  4. CONTACT: Marc von Hobe, Forschungszentrum Jülich GmbH, IEK-7, Tel.: +49 2461 614620

100 m Platform, Fast Greenhouse Gas Analyzer, CO2, CH4, H2O

Near real time data of the past 24 hours can be viewed here.

Past data starting from February 2014 can be downloaded from the table below. Data are grouped in monthly files of 10-minute averages.
If you would like to get older data or data with higher time resolution, please contact Marc von Hobe.

Month

Graph

Data file

Accuracy1

Precision2

Remarks

May 2014

CO2: +2.5/-2.5 ppm

CO2: 0.6 ppm
CH4: 0.003 ppm

Apr 2014

CO2: +4.5/-2.5 ppm

CO2: 0.6 ppm
CH4: 0.003 ppm

Mar 2014

CO2: +2.5/-4.5 ppm

CO2: 0.5 ppm
CH4: 0.003 ppm

Feb 2014

CO2: +/- 4.5 ppm

CO2: 0.6 ppm
CH4: 0.004 ppm

The FGGA is compared to a CO2 standard gas approximately every two weeks.
1Accuracy is given in terms of the maximum deviation between FGGA and the CO2 standard, combined with the 2.5 ppm uncertainty the standard.
2Instrument presision is determined as the standard deviation determined during the standard measurements.

The full specifications of the Fast Greenhouse Gas Analyzer are found here.