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{{{#!wiki red/solid ==== 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 '''<<Color(red: 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: '''[[mailto:m.von.hobe@fz-juelich.de|Marc von Hobe, Forschungszentrum Jülich GmbH, IEK-7, Tel.: +49 2461 614620]]''' }}} |
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| ||<#8080FF> '''Month'''||<#8080FF> '''Graph'''||<#8080FF> '''Data file'''||<#8080FF> '''Accuracy'''||<#8080FF> '''Precision'''||<#8080FF> '''Remarks'''|| ||<#E0E0FF> May 2014||<#E0E0FF> ||<#E0E0FF> ||<#E0E0FF> ||<#E0E0FF> ||<#E0E0FF> || ||<#E0E0FF> Apr 2014||<#E0E0FF> ||<#E0E0FF> ||<#E0E0FF> ||<#E0E0FF> ||<#E0E0FF> || ||<#E0E0FF> Mar 2014||<#E0E0FF> ||<#E0E0FF> ||<#E0E0FF> ||<#E0E0FF> ||<#E0E0FF> || ||<#E0E0FF> Feb 2014||<#E0E0FF> ||<#E0E0FF> ||<#E0E0FF> ||<#E0E0FF> ||<#E0E0FF> || |
||<#8080FF> '''Month'''||<#8080FF> '''Graph'''||<#8080FF> '''Data file'''||<#8080FF> '''Accuracy~-^1^-~'''||<#8080FF> '''Precision~-^2^-~'''||<#8080FF> '''Remarks'''|| ||<#E0E0FF> May 2014||<#E0E0FF> [[attachment:fgga2014_05.png]] ||<#E0E0FF> [[attachment:fzj100m_2014_05.csv]] ||<#E0E0FF>~- CO,,2,,: +2.5/-2.5 ppm-~ ||<#E0E0FF>~- CO,,2,,: 0.6 ppm <<BR>> CH,,4,,: 0.003 ppm -~||<#E0E0FF> || ||<#E0E0FF> Apr 2014||<#E0E0FF> [[attachment:fgga2014_04.png]] ||<#E0E0FF> [[attachment:fzj100m_2014_04.csv]] ||<#E0E0FF>~- CO,,2,,: +4.5/-2.5 ppm-~ ||<#E0E0FF>~- CO,,2,,: 0.6 ppm <<BR>> CH,,4,,: 0.003 ppm -~||<#E0E0FF> || ||<#E0E0FF> Mar 2014||<#E0E0FF> [[attachment:fgga2014_03.png]] ||<#E0E0FF> [[attachment:fzj100m_2014_03.csv]] ||<#E0E0FF>~- CO,,2,,: +2.5/-4.5 ppm-~ ||<#E0E0FF>~- CO,,2,,: 0.5 ppm <<BR>> CH,,4,,: 0.003 ppm -~||<#E0E0FF> || ||<#E0E0FF> Feb 2014||<#E0E0FF> [[attachment:fgga2014_02.png]] ||<#E0E0FF> [[attachment:fzj100m_2014_02.csv]] ||<#E0E0FF>~- CO,,2,,: +/- 4.5 ppm-~||<#E0E0FF>~- CO,,2,,: 0.6 ppm <<BR>> CH,,4,,: 0.004 ppm -~||<#E0E0FF> || ~- The FGGA is compared to a CO,,2,, standard gas approximately every two weeks. There are currently no standards for CH,,4,, and H,,2,,O. However, because it is a direct spectroscopic method over entire absorption lines with known line characteristics, accuracy for all gases is expected to fall within 2 %. -~ <<BR>> ~- ^1^Accuracy is given here in terms of the maximum deviation between FGGA and the CO,,2,, standard, combined with the 2.5 ppm uncertainty of the standard. -~ <<BR>> ~- ^2^Instrument presision is determined as the standard deviation determined during the standard measurements. -~ <<BR>> Full specifications of the Fast Greenhouse Gas Analyzer are found [[http://www.lgrinc.com/analyzers/overview.php?prodid=23&type=gas|here]] (note that ours is the 2009 model, not the current one). == 20 m Platform, Mid Infrared Cavity Enhanced Spectrometer (MICA) CO2, CO, H2O == Past data starting from February 2014 can be downloaded from the table below. Data are grouped in monthly files of 10-minute averages. <<BR>> If you would like to get older data or data with higher time resolution, please contact [[mailto:m.von.hobe@fz-juelich.de|Marc von Hobe]]. ||<#8080FF> '''Month'''||<#8080FF> '''Graph'''||<#8080FF> '''Data file'''||<#8080FF> '''Accuracy~-^1^-~'''||<#8080FF> '''Precision~-^2^-~'''||<#8080FF> '''Remarks'''|| ||<#E0E0FF> May 2014*||<#E0E0FF> [[attachment:ccia2014_05.png]] ||<#E0E0FF> [[attachment:fzj20m_2014_05.csv]] ||<#E0E0FF>~- CO,,2,,: +10.5/-2.5 ppm-~ ||<#E0E0FF>~- CO,,2,,: 0.4 ppm -~||<#E0E0FF |2> || ||<#E0E0FF> Apr 2014*||<#E0E0FF> [[attachment:ccia2014_04.png]] ||<#E0E0FF> [[attachment:fzj20m_2014_04.csv]] ||<#E0E0FF>~- CO,,2,,: +6.5/-2.5 ppm-~ ||<#E0E0FF>~- CO,,2,,: 0.4 ppm -~|| ||<#E0E0FF> Mar 2014||<#E0E0FF> [[attachment:mica2014_03.png]] ||<#E0E0FF> [[attachment:fzj20m_2014_03.csv]] ||<#E0E0FF>~- CO,,2,,: +2.5/-2.5 ppm-~ ||<#E0E0FF>~- CO,,2,,: 0.4 ppm <<BR>> CO: 2.3 ppb -~||<#E0E0FF> || ||<#E0E0FF> Feb 2014||<#E0E0FF> [[attachment:mica2014_02.png]] ||<#E0E0FF> [[attachment:fzj20m_2014_02.csv]] ||<#E0E0FF>~- CO,,2,,: +2.5/-3.5 ppm-~||<#E0E0FF>~- CO,,2,,: 0.5 ppm <<BR>> CO: 2.3 ppb -~||<#E0E0FF> || ~- The instrument is compared to a CO,,2,, standard gas approximately every two weeks. There are currently no standards for CO and H,,2,,O. However, because it is a direct spectroscopic method over entire absorption lines with known line characteristics, accuracy for all gases is expected to fall within 2 %. -~ <<BR>> ~- ^1^Accuracy is given here in terms of the maximum deviation between MICA and the CO,,2,, standard, combined with the 2.5 ppm uncertainty of the standard. -~ <<BR>> ~- ^2^Instrument presision is determined as the standard deviation determined during the standard measurements. -~ <<BR>> *Due to the temporary absence of the MICA instrument (for a ship cruise in the Indian Ocean), from April until September 2014, CO,,2,, measurements on the 20 m platform are made by a [[http://www.lgrinc.com/analyzers/overview.php?prodid=14&type=isotope|Carbon Dioxide Isotope Analyzer]] (note that ours is the 2009 model, not the most recent one on the LGR website). == Meteorological data == An overview of the meteorological data measured at the FZJ tower is given at [[http://www.fz-juelich.de/gs/DE/UeberUns/Organisation/S-U/Meteorologie/wetter/wetterdaten_node.html]]. These data are also archived in 10-minute-averages and can be obtained from [[mailto:A.Knaps@fz-juelich.de|Dr. Axel Knaps]]. |
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
- 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).
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.
- 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.
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 |
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||
Apr 2014 |
CO2: +4.5/-2.5 ppm |
CO2: 0.6 ppm |
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||
Mar 2014 |
CO2: +2.5/-4.5 ppm |
CO2: 0.5 ppm |
|
||
Feb 2014 |
CO2: +/- 4.5 ppm |
CO2: 0.6 ppm |
|
The FGGA is compared to a CO2 standard gas approximately every two weeks. There are currently no standards for CH4 and H2O. However, because it is a direct spectroscopic method over entire absorption lines with known line characteristics, accuracy for all gases is expected to fall within 2 %.
1Accuracy is given here in terms of the maximum deviation between FGGA and the CO2 standard, combined with the 2.5 ppm uncertainty of the standard.
2Instrument presision is determined as the standard deviation determined during the standard measurements.
Full specifications of the Fast Greenhouse Gas Analyzer are found here (note that ours is the 2009 model, not the current one).
20 m Platform, Mid Infrared Cavity Enhanced Spectrometer (MICA) CO2, CO, H2O
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: +10.5/-2.5 ppm |
CO2: 0.4 ppm |
|
||
Apr 2014* |
CO2: +6.5/-2.5 ppm |
CO2: 0.4 ppm |
|||
Mar 2014 |
CO2: +2.5/-2.5 ppm |
CO2: 0.4 ppm |
|
||
Feb 2014 |
CO2: +2.5/-3.5 ppm |
CO2: 0.5 ppm |
|
The instrument is compared to a CO2 standard gas approximately every two weeks. There are currently no standards for CO and H2O. However, because it is a direct spectroscopic method over entire absorption lines with known line characteristics, accuracy for all gases is expected to fall within 2 %.
1Accuracy is given here in terms of the maximum deviation between MICA and the CO2 standard, combined with the 2.5 ppm uncertainty of the standard.
2Instrument presision is determined as the standard deviation determined during the standard measurements.
*Due to the temporary absence of the MICA instrument (for a ship cruise in the Indian Ocean), from April until September 2014, CO2 measurements on the 20 m platform are made by a Carbon Dioxide Isotope Analyzer (note that ours is the 2009 model, not the most recent one on the LGR website).
Meteorological data
An overview of the meteorological data measured at the FZJ tower is given at http://www.fz-juelich.de/gs/DE/UeberUns/Organisation/S-U/Meteorologie/wetter/wetterdaten_node.html. These data are also archived in 10-minute-averages and can be obtained from Dr. Axel Knaps.