Fig. 4: Comparison of gridded CH4 emission maps with GFEI.
From: Structural shifts in China’s oil and gas CH4 emissions with implications for mitigation efforts
a The emission maps of this work and (b) GFEI. c The differences between this work and GFEI. d The comparison of cumulative population and CH4 emissions from this work and GFEI at the spatial resolutions of 0.1° and 1°. The cumulative emissions are calculated based on the descending order of populations. e The comparison of cumulative CH4 emissions from this work and GFEI at the spatial resolutions of 0.1°, 0.5°, and 1°. f Differences in cumulative emissions from grid cells with population density larger than one value (y-axes) are plotted along with population density (x-axes) at the spatial resolutions of 0.1°, 0.5°, and 1°. Panels (a–c) were created using Python 3.9, utilizing the mpl_toolkits.basemap package to import Basemap 1.3.758. No data available for the gray areas on the map.
