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Description
This data set provides gridded, model-derived gross primary productivity (GPP), ecosystem respiration (RECO), and net ecosystem exchange (NEE) of CO2 biogenic fluxes and their uncertainties at monthly and 3-hourly time scales over 2003-2019 on a 463-m spatial resolution grid for the conterminous United States (CONUS) and on both 5-km and half-degree spatial resolution grids for North America (NA). The biogeochemical model Carnegie Ames Stanford Approach (CASA) was used.
Product Summary
Platforms
MODELS
Instruments
Computer
Spatial Extent
N: 70.5S: 0.5E: -24.5W: -176
Location
NORTH AMERICA
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2003-01-01 to 2019-12-31
Data Partner
THE OAK RIDGE NATIONAL LABORATORY (ORNL) DISTRIBUTED ACTIVE ARCHIVE CENTER (DAAC) (ORNL_DAAC)
Concept ID
C2705715010-ORNL_CLOUD
Data State
COMPLETE
Number of Files/Granules
762
Processing Level
4
Published
Updated
Science Keywords
Primary Production
,
Ecosystems
,
Respiration Rate
Citation
Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.
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Citation Copied
Zhou, Y., Williams, C. A., Lauvaux, T., Feng, S., Baker, I. T., Wei, Y., Denning, A. S., Keller, K., & Davis, K. J. (2019). ACT-America: Gridded Ensembles of Surface Biogenic Carbon Fluxes, 2003-2019 (Version 1.1). ORNL Distributed Active Archive Center. https://doi.org/10.3334/ORNLDAAC/1675 Date Accessed: 2026-05-14
Zhou, Y., C.A. Williams, T. Lauvaux, S. Feng, I.T. Baker, Y. Wei, A.S. Denning, K. Keller, and K.J. Davis. “ACT-America: Gridded Ensembles of Surface Biogenic Carbon Fluxes, 2003-2019.” ORNL Distributed Active Archive Center, January 1, 2019. doi:10.3334/ORNLDAAC/1675. Date Accessed: 2026-05-14
Zhou, Y., et al. ACT-America: Gridded Ensembles of Surface Biogenic Carbon Fluxes, 2003-2019. 1.1, ORNL Distributed Active Archive Center, 1 Jan. 2019, doi:10.3334/ORNLDAAC/1675. Date Accessed: 2026-05-14
Gourdji, Sharon M., Karion, Anna, LopezCoto, Israel, Ghosh, Subhomoy, Mueller, Kimberly L., Zhou, Yu, Williams, Christopher A., Baker, Ian T., Haynes, Katharine D., Whetstone, James R.
Water Vapor Mixing Ratio Profiles, Methane, Atmospheric Carbon Dioxide, Atmospheric Carbon Monoxide, Primary Production, Ecosystems, Respiration Rate
Wei, Y., Shrestha, R., Pal, S., Gerken, T., Feng, S., McNelis, J., Singh, D., Thornton, M. M., Boyer, A. G., Shook, M. A., Chen, G., Baier, B. C., Barkley, Z. R., Barrick, J. D., Bennett, J. R., Browell, E. V., Campbell, J. F., Campbell, L. J., Choi, Y., Collins, J., Dobler, J., Eckl, M., Fiehn, A., Fried, A., Digangi, J. P., BartonGrimley, R., Halliday, H., Klausner, T., Kooi, S., Kostinek, J., Lauvaux, T., Lin, B., McGill, M. J., Meadows, B., Miles, N. L., Nehrir, A. R., Nowak, J. B., Obland, M., ODell, C., Fao, R. M. P., Richardson, S. J., Richter, D., Roiger, A., Sweeney, C., Walega, J., Weibring, P., Williams, C. A., Yang, M. M., Zhou, Y., Davis, K. J.
Primary Production, Ecosystems, Respiration Rate, Atmospheric Carbon Dioxide, Methane, Atmospheric Carbon Monoxide, Atmospheric Ozone, Carbon And Hydrocarbon Compounds, Cloud Top Height, Planetary Boundary Layer Height, Aerosol Backscatter, Nitrogen Compounds, Longwave Radiation, Shortwave Radiation, Air Temperature, Precipitation Amount, Agricultural Lands, Land Use/Land Cover Classification, Leaf Characteristics, Soil Chemistry, Soil Classification, Halocarbons And Halogens, Trace Gases/Trace Species, Water Vapor Mixing Ratio Profiles, Airspeed/Ground Speed, Altitude, Vertical Profiles, Attitude Characteristics, Flight Level Winds, Wind Speed, Dew Point Temperature, Wind Direction, Carbon, Weather Events, Flight Data Logs