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. Author manuscript; available in PMC: 2021 Apr 16.
Published in final edited form as: Geophys Res Lett. 2018 Dec 28;46(2):1049–1060. doi: 10.1029/2018GL081095

Figure 2.

Figure 2.

(a) In-situ aircraft measurements and GEM-MACH model output of the three of the seven spiral flights that are within retrieved TROPOMI pixels. The right figure shows the mean difference (and standard deviation) between the GEM-MACH model and the aircraft measurements from all seven spirals. Aircraft columns versus (b) the original and (c) the alternative AMF TROPOMI NO2 columns. The solid red and the black dashed lines represent the line of best fit and the 1:1 line, respectively. (d) AMFs, including the original TROPOMI (AMF TROPOMI; green), the re-calculated (AMF EC; blue), and the calculated “true” AMF from aircraft measurements using the TROPOMI aldebo (True 1; yellow) the MODIS albedo (True 2; red).