Data Policy
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."
Version
2026-08-10-0025 (Last updated: 2026-09-01)File
This data set is submitted by AGAGE.
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 | 4 |
|---|---|
| Acronym | AGAGE |
| Name | Advanced Global Atmospheric Gases Experiment Science Team(AGAGE) |
| Address 1 | Advanced Global Atmospheric Gases Experiment |
| Address 2 | Massachusetts Institute of Technology, Center for Global Change Science |
| Address 3 | Building 54-1312 Cambridge, MA 02139-2307 |
| Country/Territory | Multinational |
| Website | https://agage.mit.edu/ |
Contact(s)
| Name | Simon O'Doherty |
|---|---|
| Prefix | Prof. |
| s.odoherty@bristol.ac.uk | |
| Organization No | 77 |
| Organization acronym | UNIVBRIS |
| Organization name | Atmospheric Chemistry Research Group School of Chemistry University of Bristol |
| Organization country/territory | United Kingdom of Great Britain and Northern Ireland |
| Address 1 | |
| Address 2 | |
| Address 3 | Atmospheric Chemistry Research Group School of Chemistry University of Bristol Cantocks Close BS8 1TS Bristol United Kingdom |
| Country/territory | United Kingdom of Great Britain and Northern Ireland |
| Tel | |
| Fax | |
| Last updated date | 2026-08-27 |
| Name | Ray Wang |
|---|---|
| Prefix | Dr. |
| raywang@eas.gatech.edu | |
| Organization No | 121 |
| Organization acronym | EAS |
| Organization name | School of Earth and Atmospheric Sciences, Georgia Institute of Technology |
| Organization country/territory | United States of America |
| Address 1 | |
| Address 2 | 311 Ferst Drive School of Earth and Atmospheric Sciences Georgia Institute of Technology Atlanta |
| Address 3 | GA 30332-0340, U.S.A |
| Country/territory | United States of America |
| Tel | (404)894-3815 |
| Fax | |
| Last updated date | 2025-08-18 |
| Monitoring background conditions, and the influence of air pollution | |
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9999-12-31 00:00:00 - 9999-12-31 23:59:59: UB-98 |
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9999-12-31 00:00:00 - 9999-12-31 23:59:59: GCMS-Medusa(Unknown) |
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| processing_code_url: https://github.com/AGAGE-atmosphere/agage-archive | |
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[Hourly] [Daily] [Monthly] |
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comment: AGAGE Medusa measurements. Output from GCWerks. See Miller et al. (2008) DOI:10.1021/ac702084k; and Arnold et al. (2012) DOI:10.1021/ac300373e data_acknowledgements: Please thank the listed contacts (who are not already co-authors) for each of the stations whose data is used in your paper. Please state: “AGAGE is supported principally by NASA (USA) grants to MIT and SIO; and also by: DESNZ (UK) and NOAA (USA) grants to Bristol University; CSIRO and BoM (Australia): FOEN grants to Empa (Switzerland); NILU (Norway); SNU (Korea); CMA (China); NIES (Japan); and Urbino University (Italy)”. data_availability_statement: These data are made available to the scientific community and public to improve understanding of ozone depletion and climate change and to lead to new scientific insights. AGAGE relies on the ethics and integrity of the user to ensure that AGAGE scientists receive fair credit for their work. If the data are obtained for potential use in a publication or presentation; AGAGE station PIs should be informed at the outset of the proposed work. Station PI contact information is located in the station pages. If the AGAGE data are essential to the work; co-authorship on publications may be appropriate. Manuscripts using the AGAGE data should be sent early to the AGAGE contacts for review before they are submitted for publication; so we can ensure that the quality and limitations of the data are accurately represented. Every effort is made to produce the most accurate and precise measurements possible. However; we reserve the right to make corrections to the data based on recalibration of standard gases or for other reasons deemed scientifically justified. We are not responsible for results and conclusions based on use of these data without regard to this warning. Data used in publications must be included as a supplementary file with the publication. data_reciprocity_agreement: Use of these data implies an agreement to reciprocate. Laboratories making similar measurements agree to make their own data available to the general public and to the scientific community in an equally complete and easily accessible form. Scientists are encouraged to make available to the community; upon request; their own modelling tools used in the interpretation of the AGAGE data; namely well documented model code; transport fields; and additional information necessary for other scientists to repeat the work and to run modified versions. inlet_comment: main tower limit_of_detection_comment: Data points recorded as zero mole fraction indicate that the mole fraction of a given species within the sample was below the limit of detection for the analyser. They should not be interpreted as implying that the species was not present in the atmosphere. pollution_flag_comment: Note that the algorithm used to calculate the baseline flags may perform poorly for sites/species where either the baseline is rarely observed (i.e. highly polluted sites) or the baseline is highly variable. Users of the baseline flags and/or the monthly mean mole fractions derived from them should contact AGAGE station PIs at the onset of their work. value_unc_1: Mole fraction repeatability of hcfc-124 in dry air value_sd: Mole fraction variability of hcfc-124 in dry air instrument_comment(GCMS-Medusa): |
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Wind direction: Wind speed: Relative humidity: Precipitation amount: Air pressure: Air temperature: Dew point temperature: Sea water temperature: Sea surface water temperature: Sea water salinity: Sea surface water salinity: |
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Meteorological data may remain as first provided, even when greenhouse gas data are updated. |
DOI Metadata
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| For more information, please refer: doi.org/10.60718/j7yv-mk05 | |||||||||
Related information
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.
Simon O'Doherty (UNIVBRIS),
Ray Wang (EAS),
Atmospheric HCFC-124
at Mace Head by Advanced Global Atmospheric Gases Experiment Science Team(AGAGE),
dataset published as HCFC-124_MHD6016_surface-insitu_AGAGE_gc-ms-medusa at WDCGG,
ver. 2026-08-10-0025 (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 | (1) The DOI of this dataset |
|---|---|
| 2 | (2) Prinn; R.G.; R.F. Weiss; J. Arduini; T. Arnold; H.L. DeWitt; P.J. Fraser; A.L. Ganesan; J. Gasore; C.M. Harth; O. Hermansen; J. Kim; P.B. Krummel; S. Li; Z. M. Loh; C.R. Lunder; M. Maione; A.J. Manning; B.R. Miller; B. Mitrevski; J. Mühle; S. O’Doherty; S. Park; S. Reimann; M. Rigby; T. Saito; P.K. Salameh; R. Schmidt; P.G. Simmonds; L.P. Steele; M.K. Vollmer; R.H. Wang; B. Yao; Y. Yokouchi; D. Young; and L. Zhou: History of chemically and radiatively important atmospheric gases from the Advanced Global Atmospheric Gases Experiment (AGAGE); Earth Syst. Sci. Data; 10; 985-1018; 2018; https://doi.org/10.5194/essd-10-985-2018. Website: agage.mit.edu. |
| 3 | (3) Most recent AGAGE paper publishing the relevant data; as listed on AGAGE Publications. |
