OCO-3 Level 1B calibrated, geolocated science spectra, Forward Processing V11 (OCO3_L1B_Science) at GES DISC

Description

Version 11 is the current version of the data set. Older versions will no longer be available and are superseded by Version 11. The Orbiting Carbon Observatory -3 (OCO-3) was deployed to the International Space Station in May, 2019. It is technically a single instrument, almost identical to OCO-2. The Orbiting Carbon Observatory is the first NASA mission designed to collect space-based measurements of atmospheric carbon dioxide with the precision, resolution, and coverage needed to characterize the processes controlling its buildup in the atmosphere. OCO-3 incorporates three high-resolution spectrometers that make coincident measurements of reflected sunlight in the near-infrared CO2 near 1.61 and 2.06 micrometers and in molecular oxygen (O2) A-Band at 0.76 micrometers. The three spectrometers have different characteristics and are calibrated independently. Oxygen-A Band cloud screening algorithm is one of the primary cloud screening tools implemented in the operational OCO processing pipeline. The algorithm was introduced and applied to early GOSAT data with further analysis performed on OCO-2 simulations. The OCO ABO2 algorithm employs a fast Bayesian retrieval to estimate surface pressure and surface albedo from high resolution spectra of the molecular oxygen (O2) A-band, near 0.765 µm. The radiative transfer forward model (FM) assumes a clear-sky condition, i.e. Rayleigh scattering only, such that differences between the modeled and measured radiances are apparent when the measurement scene contains cloud or aerosol.

Resources

Name Format Description Link
21 This software (NASA NTR-49044) retrieves a set of atmospheric/surface/instrument parameters from a simultaneous fit to spectra from multiple absorption bands. The software uses an iterative, non-linear retrieval technique (optimal estimation). After the retrieval process has converged, the software performs an error analysis. The products of the software include all quantities needed to understand the information content of the measurement, its uncertainty, and its dependence on interfering atmospheric properties. Jet Propulsion Laboratory, California Institute of Technology. Copyright 2016 California Institute of Technology. U.S. Government sponsorship acknowledged. https://github.com/nasa/RtRetrievalFramework
22 OCO3_logo.jpg https://docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/OCO3_logo.jpg
21 Access the dataset landing page from the GES DISC website. https://disc.gsfc.nasa.gov/datacollection/OCO3_L1B_Science_11.html
33 OCO-3 Data Quality Statement https://docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/OCO3_L2_DQ_Statement_v10.pdf
21 Access the data via the OPeNDAP protocol. https://oco2.gesdisc.eosdis.nasa.gov/opendap/OCO3_L1B_Science.11/contents.html
21 OCO-3 Project Home Page https://ocov3.jpl.nasa.gov/
33 Level 1B Algorithm Theoretical Basis (ATBD) https://docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/OCO_L1B_ATBD.pdf
33 README document. https://docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/README.OCO2.pdf
21 Publications from the Science Team https://ocov3.jpl.nasa.gov/science/publications/
21 OCO Documentation https://disc.gsfc.nasa.gov/information/documents?title=OCO-2+Documents
21 OCO-3 Data Gaps https://disc.gsfc.nasa.gov/information/documents?title=OCO-3+Known+Data+Issues
21 Use the Earthdata Search to find and retrieve data sets across multiple data centers. https://search.earthdata.nasa.gov/search?q=OCO3_L1B_Science
33 USER'S GUIDE https://docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/OCO2_OCO3_B10_DUG.pdf
21 Subset recipe using OPeNDAP https://disc.gsfc.nasa.gov/information/howto?title=How+to+download+a+spatial+and+variable+subset+of+Level+1B+data+using+OPeNDAP
33 Level 1B Software Interface Specification containing description of all data objects in data files https://docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/SDOS_SIS_L1b.V7.pdf
21 Access the data via HTTP. https://oco2.gesdisc.eosdis.nasa.gov/data/OCO3_DATA/OCO3_L1B_Science.11/

Tags

  • infrared-wavelengths
  • atmosphere
  • atmospheric-chemistry
  • spectral-engineering
  • earth-science

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