Global Gridded Methane and Ethane Emission Inventory for Fossil Fuel Sources (2012–2021) with Consistent Spatial Distribution and Explicit Ethane-to-Methane Ratios

Ethane emissions are then derived from the estimated methane emissions using an EMR of 0.056. In China, provincial methane and ethane emissions are spatially disaggregated to urban areas based on population density and temporally allocated using a seasonal profile, with winter emissions assumed to be 1.5 times summer emissions. Outside China, national emissions are spatially disaggregated based on population density distribution (earthdata.nasa.gov/data/catalog/sedac-ciesin-sedac-gpwv4-popdens-r11-4.11). Data filesMonthly methane/ethane emissions: CH4_C2H6_global_fossil_fuel_{year}_monthly.nc Data informationVariables:C2H6_Oil: ethane emissions from oil production (unit: kg/m²/s)C2H6_Coal: ethane emissions from coal production (unit: kg/m²/s)C2H6_Gas_Up: ethane emissions from natural gas production and transmission (unit: kg/m²/s)C2H6_Gas_Dn_MonthlyScaled: ethane emissions from natural gas consumption and a seasonal profile with a summer-to-winter ratio of 1:1.5 (unit: kg/m²/s)C2H6_Gas_MonthlyScaled: sum of C2H6_Gas_Up and C2H6_Gas_Dn_MonthlyScaled (unit: kg/m²/s)C2H6_Total_MonthlyScaled: sum of C2H6_Oil, C2H6_Coal and C2H6_Gas_MonthlyScaled (unit: kg/m²/s)CH4_Oil: methane emissions from oil production (unit: kg/m²/s)CH4_Coal: methane emissions from coal production (unit: kg/m²/s)CH4_Gas_Up: methane emissions from natural gas production and transmission (unit: kg/m²/s)CH4_Gas_Dn_MonthlyScaled: methane emissions from natural gas consumption and a seasonal profile with a summer-to-winter ratio of 1:1.5 (unit: kg/m²/s)CH4_Gas_MonthlyScaled: sum of CH4_Gas_Up and CH4_Gas_Dn_MonthlyScaled (unit: kg/m²/s)CH4_Total_MonthlyScaled: sum of CH4_Oil, CH4_Coal and CH4_Gas_MonthlyScaled (unit: kg/m²/s)area: areas of grid cells (unit: m²).Spatial resolution: 0.1° × 0.1°Period: 2012–2021 Domain: Global (90°S–90°N, 180°W–180°E)  1.   Schwietzke, S., Griffin, W. M., Matthews, H. S. & Bruhwiler, L. M. P. Natural Gas Fugitive Emissions Rates Constrained by Global Atmospheric Methane and Ethane.

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