1. Validation of OCO-2 and ACOS-GOSAT using HIPPO and TCCON
- Author
-
Kulawik, Susan S, Wunch, Debra, O'Dell, Christopher, Miller, Charles, Osterman, Greg, Wennberg, Paul, Griffith, David, Sherlock, Vanessa, Deutscher, Nicholas M, Notholt, Justus, Feist, Dietrich G, Warneke, Thorsten, Morino, Isamu, Sussmann, Ralf, Goo, Tae-Young, Strong, Kimberly, Dubey, Manvendra, Kivi, Rigel, Kawakam, Shuji, de Maziere, Martine, Wofsy, Steven, Jimenez, R, Park, S, Santoni, G. W, Daube, B. C, Pittman, J. V, Stephens, B. B, and Kort, E. A
- Subjects
Earth Resources And Remote Sensing - Abstract
Consistent validation of satellite CO2 estimates is a prerequisite for using multiple satellite CO2measurements for joint flux inversion and establishing a long-term atmospheric CO2 data record. Wevalidate recent satellite observation of OCO-2 v7 and ACOS-GOSAT v7.3 using similar analysis as previouswork (Kulawik et al. (2016) and Frankenberg et al. (2106)) through comparisons to the HIAPER Pole-to-Pole Observations (HIPPO) and the Total Carbon Column Observing Network (TCCON) to estimate biasesand errors affecting the understanding of carbon cycle science. CarbonTracker RT is also compared tothe validation data, and additionally used to evaluate the mismatch between the HIPPO observationtimeframe and the OCO-2 record, which are offset by 3-7 years. Some key metrics that are validatedinclude the seasonal cycle phase and amplitude, latitudinal gradient by season, regional biases, anderrors with respect to averaging.
- Published
- 2017