Fossil Fuel CO₂ Emissions for the OCO2 Model Intercomparison Project (MIP)

These are fossil CO₂ fluxes updated through November 2020 for OCO2-related atmospheric CO₂ modeling. For 2000-2019, they're based on ODIAC 2020 (https://db.cger.nies.go.jp/dataset/ODIAC/DL_odiac2020.html), which in turn uses BP's energy use statistics for 2018 and 2019. ODIAC monthly emissions have been disaggregated to hourly using the TIMES emission factors for day of week and time of day (https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2012JD018196). For 2020, ODIAC's 2019 emissions have been scaled by the ratio of 2020 and 2019 emissions reported by Carbon Monitor (https://www.nature.com/articles/s41597-020-00708-7). ODIAC does not have sectoral decomposition to the degree provided by Carbon Monitor, so total ODIAC emissions for each region have been scaled by the total emission change between 2019 and 2020 reported by Carbon Monitor, i.e., power, ground transport, etc. have <strong>not</strong> been separately scaled. Carbon Monitor data are daily, but ODIAC emissions are monthly. So Carbon Monitor data have been aggregated to monthly totals before deriving scaling factors between 2019 and 2020. If your work depends on the exact timing of emission reduction in 2020 reported by Carbon Monitor, <strong>do not</strong> use these emission files. Hourly global totals are given in the files as a check, in case you want to verify your units and file reading.