Tropospheric ozone: An interpretation of low latitude data

Low latitude tropospheric ozone shows a rather pronounced peak of ozone density between about 3 and 5 km. The establishment of the average density profile by either simple stratospheric injection, or a net local tropospheric ozone production is considered. It is shown that the natural variability of the ozone data occur at different heights depending on the assumed mechanism. The Natal (Brazil) data set and an independent data set taken at Ft. Sherman (Panama) indicate the existence of a net ozone production between the upper boundary of about 13 km and the region of the peak between 3 and 5 km.