NACP North American 8-km Net Ecosystem Exchange and Component Fluxes, 2004

This data set provides modeled carbon flux estimates at 8-km spatial resolution over North America for the year 2004 of (1) net ecosystem exchange (NEE) of carbon dioxide (CO2), (2) net ecosystem production (NEP, the balance of net primary production and heterotrophic respiration), (3) stream evasion (CO2 emitted from streams and rivers), (4) emissions from harvested forest and agricultural products, and (5) emissions from biomass burning.Annual estimates, in g C/m2/year, are provided for all five fluxes. Daily estimates, in g C/m2/day, are provided for NEP and stream evasion fluxes. Fluxes for fire emissions, harvest decomposition/respiration, stream evasion, and NEP were derived as described in Section 5.NEE fluxes were estimated using a full bottom-up accounting of NEE produced by integrating emissions from harvested forest and agricultural products, CO2 emitted from streams and rivers, and biomass burning in the CarbonTracker (version 2011_oi) modeling system. NEE estimates were run in the forward mode through the CarbonTracker inversion setup that calculates CO2 uptake and release at the Earth's surface over time. Refer to Turner et al.(2013) for details.There are seven data files in NetCDF (.nc) format with this data set, including: five annual files for fire emissions, harvest decomposition/respiration, stream evasion, NEP, and NEE fluxes; and two daily files for NEP and stream evasion fluxes.

Data and Resources

Field Value
accessLevel public
bureauCode {026:00}
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catalog_@id https://data.nasa.gov/data.json
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citation Turner, D.P., W.D. Ritts, A.R. Jacobson, W. Wang, and R.R. Nemani. 2013. NACP North American 8-km Net Ecosystem Exchange and Component Fluxes, 2004. ORNL DAAC, Oak Ridge, Tennessee, USA. http://dx.doi.org/10.3334/ORNLDAAC/1203
graphic-preview-description Images of annual flux data for 1) net ecosystem exchange (NEE) of carbon dioxide (CO2), (2) net ecosystem production (NEP, the balance of net primary production and heterotrophic respiration), (3) emissions from harvested forest and agricultural products, and (4) stream evasion (CO2 emitted from streams and rivers).
graphic-preview-file https://daac.ornl.gov/NACP/guides/NACP_TURNER_image.png
identifier C179126405-ORNL_DAAC
issued 2014-01-13
landingPage https://doi.org/10.3334/ORNLDAAC/1203
language {en-US}
metadata_type geospatial
modified 2019-04-15
programCode {026:001}
publisher ORNL_DAAC
resource-type Dataset
source_datajson_identifier true
source_hash 727c73e10597587d5a952f005b2bef7d17d8c2e2
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-179.55, 2.74], [-34.11, 2.74], [-34.11, 90.0], [-179.55, 90.0], [-179.55, 2.74]]]}
temporal 2004-01-01T00:00:00Z/2004-12-31T23:59:59Z
theme {NACP,geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • air-quality
  • amerigeo
  • amerigeoss
  • atmosphere
  • atmospheric-chemistry
  • biosphere
  • ckan
  • earth-science
  • ecological-dynamics
  • environmental-impacts
  • geo
  • geoss
  • human-dimensions
  • national
  • north-america
  • united-states
isopen False
license_id notspecified
license_title License not specified
maintainer undefined
maintainer_email uso@daac.ornl.gov
metadata_created 2025-11-22T05:33:04.089021
metadata_modified 2025-11-22T05:33:04.089024
notes This data set provides modeled carbon flux estimates at 8-km spatial resolution over North America for the year 2004 of (1) net ecosystem exchange (NEE) of carbon dioxide (CO2), (2) net ecosystem production (NEP, the balance of net primary production and heterotrophic respiration), (3) stream evasion (CO2 emitted from streams and rivers), (4) emissions from harvested forest and agricultural products, and (5) emissions from biomass burning.Annual estimates, in g C/m2/year, are provided for all five fluxes. Daily estimates, in g C/m2/day, are provided for NEP and stream evasion fluxes. Fluxes for fire emissions, harvest decomposition/respiration, stream evasion, and NEP were derived as described in Section 5.NEE fluxes were estimated using a full bottom-up accounting of NEE produced by integrating emissions from harvested forest and agricultural products, CO2 emitted from streams and rivers, and biomass burning in the CarbonTracker (version 2011_oi) modeling system. NEE estimates were run in the forward mode through the CarbonTracker inversion setup that calculates CO2 uptake and release at the Earth's surface over time. Refer to Turner et al.(2013) for details.There are seven data files in NetCDF (.nc) format with this data set, including: five annual files for fire emissions, harvest decomposition/respiration, stream evasion, NEP, and NEE fluxes; and two daily files for NEP and stream evasion fluxes.
num_resources 6
num_tags 16
title NACP North American 8-km Net Ecosystem Exchange and Component Fluxes, 2004