CMS: Daily Gross Primary Productivity over CONUS from TROPOMI SIF, 2018-2021

Description

This dataset includes estimates of gross primary production (GPP) for the conterminous U.S., for 2018-02-15 to 2021-10-15, based on measurements of solar-induced chlorophyll fluorescence from the TROPOspheric Monitoring Instrument (TROPOMI) on the Sentinel-5P satellite platform. GPP was estimated from rates of photosynthesis inferred from SIF using a linear model and ecosystem scaling factors from 102 AmeriFlux sites. Knowledge of the spatiotemporal patterns of GPP is necessary for understanding regional and global carbon budgets. Broad-scale estimates of GPP have typically relied upon carbon cycle models linking spatial patterns of vegetation with remotely sensed environmental data. SIF provides a means to directly estimate photosynthetic activity, and therefore, GPP. Recent deployments of satellite platforms that measure SIF provide near-real-time measurements and represent a breakthrough in measuring GPP on a global scale. Regular SIF measurements can detect spatially explicit ecosystem-level responses to climate events such as drought and flooding. This dataset includes spatially explicit estimates of GPP (g m-2 d-1), uncertainty in GPP, and related TROPOMI SIF measurements (mW m-2 sr-1 nm-1) at 500-m resolution. The data are provided in NetCDF format.

Resources

Name Format Description Link
21 ORNL DAAC Data Set Documentation https://daac.ornl.gov/CMS/guides/GPP_CONUS_TROPOMI.html
21 USE SERVICE API https://opendap.earthdata.nasa.gov/
21 This link allows direct data access via Earthdata login https://daac.ornl.gov/cms/GPP_CONUS_TROPOMI/
33 CMS: Daily Gross Primary Productivity over CONUS from TROPOMI SIF, 2018-2021: GPP_CONUS_TROPOMI.pdf https://data.ornldaac.earthdata.nasa.gov/public/cms/GPP_CONUS_TROPOMI/comp/GPP_CONUS_TROPOMI.pdf
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.3334%2FORNLDAAC%2F1875
77 CMS: Daily Gross Primary Productivity over CONUS from TROPOMI SIF, 2018-2021: M01_CONUS.mp4 https://data.ornldaac.earthdata.nasa.gov/public/cms/GPP_CONUS_TROPOMI/comp/M01_CONUS.mp4
34 Interannual variation in gross primary productivity (GPP) across conterminous United States. Map of annual mean GPP for 2018 (a) and 2019 (b). Map of the difference in annual mean GPP between 2019 and 2018 (c) wherein red indicates higher GPP in 2019 and blue indicates higher GPP in 2018. The inset in the bottom left corner shows a time series of the average GPP across CONUS for 2018 and 2019. Source: Turner et al. (2021) https://daac.ornl.gov/CMS/guides/GPP_CONUS_TROPOMI_Fig1.png
21 Data set Landing Page DOI URL https://doi.org/10.3334/ORNLDAAC/1875

Tags

  • biosphere
  • vegetation
  • ecological-dynamics
  • earth-science

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