ACOS v3.4 Release-3 XCO2 Maps
Data Origin:ACOS v3.4 release-3, which were produced by the ACOS/OCO-2 project at the Jet Propulsion Laboratory, California Institute of Technology, and obtained from Christopher O'Dell (CSU, ACOS/OCO-2 Algorithms Team). The filtered and bias-corrected XCO2 data were used for generating the Level 3 maps shown here.
Acknowledgment: We thank NASA and the ACOS/OCO-2 project for providing the data, the GOSAT Project for acquiring the spectra.
The geostatistical mapping methodology used here accounts for and exploits the spatial correlation of the examined random field at different locations. The basic idea is that, for each location at which an areal average estimate of the variable is required, subsampling, parameter inference and interpolation are updated using the sub-sampled set of measurements centered on each location. The development of the automatic mapping methodology itself comprises several interconnected steps: