Figure 4.
Summary of all DC-8 flights over Olympic Park and Mt. Taehwa: (a, d) DC-8 GPS altitude above sea level, (b, e) HCHO mixing ratios measured on board DC-8 as a function of latitude and longitude, and (c, f) HCHO mixing ratios measured on board DC-8 as a function of altitude and local time. Distance between Mt. Taehwa and Olympic Park sites is approximately 29km.