OCO-2 B10 signal analysis

The OCO-2 "signal" is defined as gridded 10-second-average OCO-2 B10 retrievals minus a CO2 reference. All quantities are presented as column-average (pressure-weighted) CO2 dry-air mole fraction (XCO2) in parts per million (ppm), without averaging kernel corrections. The reference field for the plots on this page is composed of the mean of four different quasi-operational CO2 analyses, each of which is constrained by traditional in situ measurements:
  • CarbonTracker
  • Jena
  • MACC
  • University of Edinburgh
Model samples were computed by Chris O‘Dell based on 10-second averages of OCO-2 B10 retrievals created by David Baker. Subsequent analysis by Andy Jacobson.

List of figures



Fig 1. Zonal-mean LN signal (bias corrected)


Fig 2. Zonal-mean LN signal (un-bias-corrected)


Fig 3. Zonal-mean LN bias correction


Fig 4. Zonal-mean number of LN retrievals per 2°x2° cell


Fig 5. Zonal-mean OG signal (bias corrected)


Fig 6. Zonal-mean OG signal (un-bias-corrected)


Fig 7. Zonal-mean OG bias correction


Fig 8. Zonal-mean number of OG retrievals per 2°x2° cell


Fig 9. Zonal-mean LN and OG signal (bias corrected)


Fig 10. Zonal-mean LN and OG signal (un-bias-corrected)


Fig 11. Zonal-mean LN and OG bias correction


Fig 12. Zonal-mean number of LN and OG retrievals per 2°x2° cell


Fig 13. Time-mean LN and OG signal map


Fig 14. Time-mean number of LN and OG retrievals per 2°x2° cell


Fig 15. Time-mean LN and OG un-bias-corrected signal map


Fig 16. Seasonal LN and OG signal maps


Fig 17. Seasonal number of LN and OG retrievals per 2°x2° cell, maps


Fig 18. Seasonal OG signal maps


Fig 19. Seasonal LN signal maps


Fig 20. Seasonal LN and OG un-bias-corrected signal maps


Fig 21. Time-mean changes from B9.1 to B10 LN and OG signal, maps


Fig 22. Time-mean changes from B9.1 to B10 LN signal, maps



Fig 24. Seasonal changes from B9.1 to B10 LN signal, six-panel maps


Fig 25. Seasonal changes from B9.1 to B10 OG signal, six-panel maps