Data Use Policy

TCCON data can be downloaded from the TCCON archive, hosted by CDIAC as per our Data Protocol. Please acknowledge the use of the data as described below. Citation files in bibtex (or the concise version), RIS, and XML format has been created for your convenience that include all TCCON data citations. More detailed information on the data can be found on the Data Description page. Auxiliary data, including column averaging kernels and a priori profiles are contained in the netCDF files provided for GGG2014. Instructions on how to properly use the averaging kernels and a priori profiles for the TCCON data are on the Auxiliary Data wiki page.

For updates on our data, sign up to our data users list at https://lists.gps.caltech.edu/mailma...fo/tccon_users. Note that the website is self-signed. You can safely add an exception!

TCCON Acknowledgement

If you acquire TCCON data from the database, we ask that you acknowledge this in your publications and presentations. This may be done by including text such as "TCCON data were obtained from the TCCON Data Archive, hosted by the Carbon Dioxide Information Analysis Center (CDIAC) - tccon.onrl.gov."

When using the TCCON data, please cite:

D. Wunch, G.C. Toon, J.-F.L. Blavier, R.A. Washenfelder, J. Notholt, B.J. Connor, D.W.T. Griffith, V. Sherlock, P.O. Wennberg. The Total Carbon Column Observing Network. Phil. Trans. R. Soc. A (2011) 369, doi:10.1098/rsta.2010.0240

For the GGG2014 data, each dataset has its own DOI and citation, and we ask that you cite those in your papers. The correct citations can be found in the Data_Reference variable in the data files. Here is an example for Park Falls:

Wennberg, P. O., C. Roehl, D. Wunch, G. C. Toon, J.-F. Blavier, R. Washenfelder, G. Keppel-Aleks, N. Allen, J. Ayers. 2014. TCCON data from Park Falls, Wisconsin, USA, Release GGG2014R0. TCCON data archive, hosted by the Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, Oak Ridge, Tennessee, U.S.A. http://dx.doi.org/10.14291/tccon.ggg...s01.R0/1149161

We request that you contact the PIs of the individual sites directly for guidance or collaboration and to offer coauthorship on any resulting publications. Individual sites may have additional site-specific citations, some of which are listed in the References and Contact Information section below.

Data Protocol

Use of Data

TCCON data are made freely available to the public and the scientific community, and are the product of extensive research and effort to maintain and improve their accuracy and quality. However, the availability of these data does not constitute publication, and TCCON partners require citable outputs from their research to ensure continuing funding and expansion of the network. We therefore expect all users of TCCON data to ensure that TCCON partners receive fair credit for their work, and are offered the opportunity to contribute to the research uses of the data as they deem appropriate.

Accordingly, we ask that all users note and adhere to the following guidelines and procedures when using TCCON data:

  1. TCCON data are freely available for exploratory analysis. At such time as a journal publication or conference presentation is planned using TCCON data, the TCCON PIs of sites included in the analysis should be informed of the nature and aims of the research project and the intended use of the TCCON data. This will take the form of an 'abstract of intent', to be emailed to the relevant PI’s. Contact details are given on the TCCON wiki: References and Contact Information 
  2. The abstract of intent will ensure TCCON partners have adequate fore−knowledge of the proposed research and thus the opportunity to contact data users and contribute as appropriate to the use of TCCON data in the research project.
  3. If the TCCON partner makes a significant intellectual contribution to the research, or TCCON data from a site are essential to the work, or if an important result or conclusion depends on the data, co−authorship would normally be expected. This should be discussed at an early stage in the work.
  4. Manuscripts using the data with TCCON co−authors should be sent to the coauthors for review well before (e.g. 4 weeks) they are submitted for publication, to ensure that the quality and limitations of the data are accurately represented and the coauthors have adequate time to provide input.

Reciprocity

Use of these data implies an agreement to reciprocate. Individuals 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. Modelers are encouraged to make available to the community, upon request, their own tools used in the interpretation of this data, namely well-documented model code, transport fields, and additional information necessary for other scientists to repeat the work and to run modified versions. Model availability includes collaborative support for new users of the models.

Warnings

Every effort is made to produce the most accurate and precise measurements possible. However, we reserve the right to make corrections to the data. We are not responsible for results and conclusions based on use of these data without regard to this warning.

References and Contact Information

The TCCON Network is supported by NASA through a grant to the California Institute of Technology - NNX14AI60G.

The TCCON data are calibrated using the method developed in:

Wunch, D., Toon, G. C., Wennberg, P. O., Wofsy, S. C., Stephens, B. B., Fischer, M. L., Uchino, O., Abshire, J. B., Bernath, P., Biraud, S. C., Blavier, J.-F. L., Boone, C., Bowman, K. P., Browell, E. V., Campos, T., Connor, B. J., Daube, B. C., Deutscher, N. M., Diao, M., Elkins, J. W., Gerbig, C., Gottlieb, E., Griffith, D. W. T., Hurst, D. F., Jiménez, R., Keppel-Aleks, G., Kort, E. A., Macatangay, R., Machida, T., Matsueda, H., Moore, F., Morino, I., Park, S., Robinson, J., Roehl, C. M., Sawa, Y., Sherlock, V., Sweeney, C., Tanaka, T., and Zondlo, M. A.: Calibration of the Total Carbon Column Observing Network using aircraft profile data, Atmos. Meas. Tech., 3, 1351-1362, doi:10.5194/amt-3-1351-2010, 2010.
Messerschmidt, J., Geibel, M. C., Blumenstock, T., Chen, H., Deutscher, N. M., Engel, A., Feist, D. G., Gerbig, C., Gisi, M., Hase, F., Katrynski, K., Kolle, O., Lavrič, J. V., Notholt, J., Palm, M., Ramonet, M., Rettinger, M., Schmidt, M., Sussmann, R., Toon, G. C., Truong, F., Warneke, T., Wennberg, P. O., Wunch, D., and Xueref-Remy, I.: Calibration of TCCON column-averaged CO2: the first aircraft campaign over European TCCON sites, Atmos. Chem. Phys., 11, 10765-10777, doi:10.5194/acp-11-10765-2011, 2011.
Geibel, M., J. Messerschmidt, C. Gerbig, T. Blumenstock, H. Chen, F. Hase, O. Kolle, J. V. Lavric, J. Notholt, M. Palm, M. Rettinger, M. Schmidt, R. Sussmann, T. Warneke, and D. G. Feist (2012), Calibration of column-averaged CH4 over European TCCON FTS sites with airborne in-situ measurements, Atmos. Chem. Phys., 12, 8763–8775, doi:10.5194/acp-12-8763-2012.

PI contact information and individual site citations are listed below.

    Lauder

    Correspondence to:

    Dave Pollard (dave.pollard@niwa.co.nz)
    National Institute of Water and Atmospheric Research (NIWA)
    Private Bag 50061
    Omakau, Central Otago
    New Zealand

    Funding acknowledgement:
    The Lauder TCCON programme is core-funded by NIWA through New Zealand’s Ministry of Business, Innovation and Employment.

    Correspondence to:

    Kimberly Strong (strong@atmosp.physics.utoronto.ca)
    Department of Physics, University of Toronto
    60 St. George Street
    Toronto, Ontario, M5S 1A7, Canada

    The TCCON measurements at Eureka are made by the Canadian Network for the Detection of Atmospheric Change (CANDAC), led by James R. Drummond, and in part by the Canadian Arctic ACE Validation Campaigns, led by Kaley A. Walker.  They are supported by the Atlantic Innovation Fund/Nova Scotia Research Innovation Trust, Canada Foundation for Innovation, Canadian Foundation for Climate and Atmospheric Sciences, Canadian Space Agency, Environment Canada, Government of Canada International Polar Year funding, Natural Sciences and Engineering Research Council, Northern Scientific Training Program, Ontario Innovation Trust, Ontario Research Fund and Polar Continental Shelf Program. We thank PEARL site manager Pierre Fogal, the staff at the Eureka weather station, and the CANDAC operators for the logistical and on-site support provided at Eureka.

    Sodankylä

    Correspondence to:

    Rigel Kivi (Rigel.Kivi@fmi.fi)
    FMI-Arctic Research Center
    Tähteläntie 62 FIN-99600
    Sodankylä Finland

Kivi, R. and Heikkinen, P.: Fourier transform spectrometer measurements of column CO2 at Sodankylä, Finland, Geosci. Instrum. Method. Data Syst., 5, 271-279, doi:10.5194/gi-5-271-2016, 2016. 

    Paris

    Correspondence to:

    Yao Té (yao-veng.te@upmc.fr)
    Laboratoire d'Etudes du Rayonnement et de la Matière en Astrophysique et Atmosphères (LERMA)
    Université Pierre et Marie Curie
    Case 76, 4 Place Jussieu, 75005 Paris, France
    TEL: +33-1-44-27-96-07
    FAX: +33-1-44-27-70-33

    The FTS-Paris instrument was funded by UPMC in 2006. The InGaAs detector and HCl gas cell were funded by CNRS-INSU in 2012-2013.

     

    Rikubetsu

    Correspondence to:

    Isamu Morino (morino@nies.go.jp)
    Satellite Remote Sensing Section, Center for Global Environmental Research, 
    and 
    GOSAT/ GOSAT-2 project, Satellite Observation Center,
    National Institute for Environmental Studies (NIES)
    Onogawa 16-2, Tsukuba, Ibaraki 305-8506
    Japan

    Operation is supported in part by the GOSAT project.

     

    Reunion Island

    Correspondence to:

    Martine De Mazière (martine.demaziere@bias-iasb.oma.be)
    Royal Belgian Institute for Space Aeronomy (BIRA-IASB)
    Ringlaan 3
    1180 Brussels
    Belgium

    Funding acknowledgement:
    The TCCON site at Ile de La Réunion is operated by the Royal Belgian Institute for Space Aeronomy with financial support in 2014, 2015, 2016 and 2017 under the EU project ICOS_Inwire and the ministerial decree for ICOS (FR/35/IC1) and local activities supported by LACy/UMR8105 - Université de La Réunion.
     

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