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Faculty of Science, Medicine and Health - Papers: part A

2017

Measurements

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Comparisons Of The Orbiting Carbon Observatory-2 (Oco-2) XCo2 Measurements With Tccon, Debra Wunch, Paul O. Wennberg, Greg Osterman, B Fisher, Bret Naylor, Coleen M. Roehl, Christopher O'Dell, L Mandrake, C Viatte, Matthaus Kiel, David W. T Griffith, Nicholas M. Deutscher, Voltaire A. Velazco Jan 2017

Comparisons Of The Orbiting Carbon Observatory-2 (Oco-2) XCo2 Measurements With Tccon, Debra Wunch, Paul O. Wennberg, Greg Osterman, B Fisher, Bret Naylor, Coleen M. Roehl, Christopher O'Dell, L Mandrake, C Viatte, Matthaus Kiel, David W. T Griffith, Nicholas M. Deutscher, Voltaire A. Velazco

Faculty of Science, Medicine and Health - Papers: part A

NASA's Orbiting Carbon Observatory-2 (OCO-2) has been measuring carbon dioxide column-averaged dry-air mole fraction, XCO2, in the Earth's atmosphere for over 2 years. In this paper, we describe the comparisons between the first major release of the OCO-2 retrieval algorithm (B7r) and XCO2 from OCO-2's primary ground-based validation network: the Total Carbon Column Observing Network (TCCON). The OCO-2 XCO2 retrievals, after filtering and bias correction, agree well when aggregated around and coincident with TCCON data in nadir, glint, and target observation modes, with absolute median differences less than 0.4 ppm and RMS differences less than 1.5 …