FLUXNET MARCONI CONFERENCE GAP-FILLED FLUX AND METEOROLOGY DATA, 1992-2000

Metadata:

• Identification_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: FALGE E.

Title:

FLUXNET MARCONI CONFERENCE GAP-FILLED FLUX AND METEOROLOGY DATA, 1992-2000

Online_Linkage:

http://daacsti.ornl.gov/SMM/MERCURY/harvest21/754.xml

Online_Linkage:

http://daacsti.ornl.gov//FLUXNET/guides/marconi_gap_filled.html

Description:

Abstract:

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.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates_Times:

Beginning_Date: 19960101

Ending_Date: 19991231

Status:

Progress: Complete

Maintenance_and_Update_Frequency: As appropriate

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -157.409

East_Bounding_Coordinate: 24.295

North_Bounding_Coordinate: 70.4696

South_Bounding_Coordinate: -2.6091

Keywords:

Theme:

Theme_Keyword_Thesaurus: Parameter_Sensor_Source

Theme_Keyword: AIR TEMPERATURE|AIR THERMOMETER|METEOROLOGICAL STATION

Theme_Keyword: CARBON|EDDY CORRELATION APPARATUS|TOWER

Theme_Keyword: HEAT FLUX|EDDY CORRELATION APPARATUS|TOWER

Theme_Keyword:

PHOTOSYNTHETICALLY ACTIVE RADIATION|QUANTUM SENSOR|METEOROLOGICAL STATION

Theme_Keyword: RADIATIVE FLUX|PYRANOMETER|TOWER

Theme_Keyword: SOIL TEMPERATURE|THERMISTOR|FIELD INVESTIGATION

Theme_Keyword: SURFACE WINDS|ANEMOMETER|TOWER

Theme_Keyword: WATER VAPOR|EDDY CORRELATION APPARATUS|TOWER

Theme_Keyword_Thesaurus: Parameter

Theme_Keyword: AIR TEMPERATURE

Theme_Keyword_Thesaurus: Source

Theme_Keyword: METEOROLOGICAL STATION

Theme_Keyword_Thesaurus: Sensor

Theme_Keyword: AIR THERMOMETER

Place:

Place_Keyword_Thesaurus: Place Keywords

Place_Keyword: EUROPE NORTH AMERICA

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: FALGE E.

Contact_Facsimile_Telephone: 6.1.10.8 Contact Electronic Mail: INTERNET >

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Organization:

The Oak Ridge National Laboratory (ORNL) Distributed Active Archive Center (DAAC)

Contact_Person:

ORNL DAAC User Services Office

Oak Ridge National Laboratory

Oak Ridge, Tennessee 37831 USA

FAX: +1(865)574-4665

Contact_Voice_Telephone: +1(865)241-3952

Contact_Facsimile_Telephone: 6.1.10.8 Contact Electronic Mail: INTERNET >

Contact_Electronic_Mail_Address: ornldaac@ornl.gov

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information: http://daac.ornl.gov/

Access_Instructions: PUBLIC

Resource_Description:

Falge, E., et al. 2005. FLUXNET Marconi Conference Gap-Filled Flux and Meteorology Data, 1992-2000. Data set. Available on-line [http//www.daac.ornl.gov] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A.

Metadata_Reference_Information:

Metadata_Date: 20050913

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Person: ORNL DAAC Staff

Contact_Person_Primary:

Contact_Person: ORNL DAAC Staff

Contact_Voice_Telephone: +1(865)241-3952

Contact_Electronic_Mail_Address: ornldaac@ornl.gov

Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata