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    • FLUXNET Marconi Conference Gap-Filled Flux and Meteorology Data, 1992-2000

    Metadata Updated: March 11, 2025

    Fluxes of carbon dioxide, water vapor, and energy exchange have been measured at 38 forest, grassland, and crop sites as part of the EUROFLUX and AmeriFlux projects. A total of 97 site-years of data were compiled, primarily between 1996 and 1998 but also for 1992-1995 and 1999-2000. Half-hour flux and meteorology measurements are included plus the gap-filled half-hour estimates and aggregations to day and night, weekly, monthly, and annual periods. The FLUXNET 2000 Synthesis Workshop was held at the Marconi Conference Center, Marshall, California, June 11-14, 2000. The Marconi Flux Data Collection was compiled to aid in exploring the interactions between the terrestrial biosphere and the overlying atmosphere through carbon, water, and energy exchanges. The workshop resulted in several studies to synthesize and interpret differences and similarities in long-term measurements of carbon dioxide, water vapor, and energy exchanges between vegetation and the atmosphere for a spectrum of ecosystems. A series of synthesis papers based on these data and studies was published in a special issue of the Agriculture and Forest Meteorology, Volume 113, 2002. The papers are listed in the reference section. This data product is being archived as a record of the data used the AFM special issue. Updates and revisions to the data are available at the FLUXNET web site.The eddy covariance technique is used for long-term continuous measurements of mass and energy fluxes to capture seasonal dynamics and allow for a meaningful scaling with respect to time. The equipment and methodology were standardized among sites by using common software and instrumentation. Comparisons of ecosystem fluxes among sites are usually performed on annual or monthly sums calculated on complete data records; however, the average site data coverage during a year was only 65%. Therefore, development and application of robust and consistent data gap-filling methods was required before fluxes could be calculated. One of the outcomes of the FLUXNET project was computer applications to process the data into complete, consistent, quality assured, and documented data sets (Falge et al. 2001a,b). Gap-filled flux data from four different filling methods are reported. Selected meteorological parameters were also gap filled to support flux estimating methods and are reported along with non-filled meteorological data. Note that the measured/estimated CO2 fluxes and storage fluxes were summed into net ecosystem exchange (NEE), and ONLY NEE data are reported.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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    Dates

    Metadata Created Date October 11, 2023
    Metadata Updated Date March 11, 2025

    Metadata Source

    Harvested from NASA Data.json

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    Additional Metadata

    Resource Type Dataset
    Metadata Created Date October 11, 2023
    Metadata Updated Date March 11, 2025
    Publisher ORNL_DAAC
    Maintainer
    Identifier C2776899492-ORNL_CLOUD
    Data First Published 2023-10-02
    Language en-US
    Data Last Modified 2025-03-07
    Category Fluxnet, geospatial
    Public Access Level public
    Bureau Code 026:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://data.nasa.gov/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Citation Falge, E., M. Aubinet, P.S. Bakwin, D. Baldocchi, P. Berbigier, C. Bernhofer, T.A. Black, R. Ceulemans, K.J. Davis, A.J. Dolman, A. Goldstein, M.L. Goulden, A. Granier, D.Y. Hollinger, P.G. Jarvis, N. Jensen, K. Pilegaard, G. Katul, P. Kyaw Tha Paw, B.E. Law, A. Lindroth, D. Loustau, Y. Mahli, R. Monson, P. Moncrieff, E. Moors, J.W. Munger, T. Meyers, W. Oechel, E.-D. Schulze, H. Thorgeirsson, J. Tenhunen, R. Valentini, S.B. Verma, T. Vesala, and S.C. Wofsy. 2005. FLUXNET Marconi Conference Gap-Filled Flux and Meteorology Data, 1992-2000. ORNL DAAC, Oak Ridge, Tennessee, USA. http://dx.doi.org/10.3334/ORNLDAAC/811
    Graphic Preview Description Browse Image
    Graphic Preview File https://daac.ornl.gov/graphics/browse/sdat-tds/811_1_fit.png
    Harvest Object Id 3d6f901b-ccbc-43c4-8d67-1889b349991d
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.3334/ORNLDAAC/811
    Metadata Type geospatial
    Old Spatial -157.41 -2.61 24.3 70.47
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash 88727f84d389f64a4b9e626a73e8cc2232d4cecb92a6b0b68e7559215695c77f
    Source Schema Version 1.1
    Spatial
    Temporal 1992-01-01T00:00:00Z/2000-12-31T23:59:59Z

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