Global Forest Ecosystem Structure and Function Data For Carbon Balance Research

Metadata Updated: December 5, 2017

A comprehensive global database has been assembled to quantify CO2 fluxes and pathways across different levels of integration (from photosynthesis up to net ecosystem production) in forest ecosystems. The database fills an important gap for model calibration, model validation, and hypothesis testing at global and regional scales. The database archive includes: a Microsoft Office Access Database; data files for all tables in the database; query outputs from the database; and SQL script file for re-creating the database from the tables. The database is structured by site (i.e., a forest or stand of known geographical location, biome, species composition, and management regime). It contains carbon budget variables (fluxes and stocks), ecosystem traits (standing biomass, leaf area index, age), and ancillary information (management regime, climate, soil characteristics) for 529 sites from eight forest biomes. Data entries originated from peer-reviewed literature and personal communications with researchers involved in Fluxnet. Flux estimates were included in the database when they were based on direct measurements (e.g., tower-based eddy covariance system measurements), derived from single or multiple direct measurements, or modeled. Stand description was based on observed values, and climatic description was based on the CRU data set and ORCHIDEE model output. Uncertainty for each carbon balance component in the database was estimated in a uniformed way by expert judgment. Robustness of CO2 balances was tested, and closure terms were introduced as a numerical way to approach data quality and flux uncertainty at the biome level.

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.

Collection

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Downloads & Resources

References

https://daac.ornl.gov/daacdata/global_vegetation/forest_carbon_flux/
https://daac.ornl.gov/VEGETATION/guides/forest_carbon_flux.html
https://doi.org/10.3334/ORNLDAAC/949
https://daac.ornl.gov/daacdata/global_vegetation/forest_carbon_flux/comp/appendix_a_database_sources.pdf
https://daac.ornl.gov/daacdata/global_vegetation/forest_carbon_flux/comp/CO2_balances_readme.pdf
https://daac.ornl.gov/daacdata/global_vegetation/forest_carbon_flux/comp/Documentation_literature_compilation_v3.1.pdf
https://daac.ornl.gov/daacdata/global_vegetation/forest_carbon_flux/comp/forest_carbon_flux.pdf

Dates

Metadata Created Date October 8, 2014
Metadata Updated Date December 5, 2017

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date October 8, 2014
Metadata Updated Date December 5, 2017
Publisher ORNL_DAAC
Unique Identifier C179003031-ORNL_DAAC
Maintainer
undefined
Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Collection Metadata true
Harvest Object Id 9ac114fa-5ef0-4e4f-b5cb-a88ce531e0b9
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2009-11-11T00:00:00.000Z
Language en-US
Metadata Type geospatial
Data Last Modified 2009-11-11T00:00:00.000Z
Program Code 026:001
Publisher Hierarchy U.S. Government > National Aeronautics and Space Administration > ORNL_DAAC
Related Documents https://daac.ornl.gov/daacdata/global_vegetation/forest_carbon_flux/, https://daac.ornl.gov/VEGETATION/guides/forest_carbon_flux.html, https://doi.org/10.3334/ORNLDAAC/949, https://daac.ornl.gov/daacdata/global_vegetation/forest_carbon_flux/comp/appendix_a_database_sources.pdf, https://daac.ornl.gov/daacdata/global_vegetation/forest_carbon_flux/comp/CO2_balances_readme.pdf, https://daac.ornl.gov/daacdata/global_vegetation/forest_carbon_flux/comp/Documentation_literature_compilation_v3.1.pdf, https://daac.ornl.gov/daacdata/global_vegetation/forest_carbon_flux/comp/forest_carbon_flux.pdf
Source Datajson Identifier True
Source Hash 5f174e71a672e2d0bee72749ff07ab5b251fb92f
Source Schema Version 1.1
Spatial -159.5 -42.87 172.75 67.36
Temporal 1897-01-01T00:00:00Z/2006-12-31T00:00:00Z
Category vegetation, geospatial

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