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Progress in Earth and Planetary Science
Fig. 6 | Progress in Earth and Planetary Science

Fig. 6

From: Near-real-time estimation of fossil fuel CO2 emissions from China based on atmospheric observations on Hateruma and Yonaguni Islands, Japan

Fig. 6

Scatter plot between the FFCO2/CH4 emission ratios in China and the simulated ΔCO2/ΔCH4 ratios for HAT. The plots based on the FFCO2 emissions of Set A and Set B are shown as red and blue circles, respectively. The red, blue, and black lines represent linear regression lines for the plots based on Set A, Set B, and their combined set, respectively. The values for “a” and “b” in the figure represent the related slopes and y-axis intercepts, respectively. The gray vertical bars are estimated uncertainties (1σ) for the regression line based on the total FFCO2 data. Gray crosses are the outliers

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