https://www.amazon.com/Holes-Ozone-...3&s=Books&sr=1-1-fkmrnull&ref=sr_1_fkmrnull_1
This book is extraordinary!!!
The graphs on pages 76 and 122 are not duplicated anywhere else, except in G.M.B. Dobson’s original work.
It was not until after Dobson died on March 10 or 11 of 1976 that the manipulations of the data began.
It would be helpful if the newer researchers had continued Dobson’s graphical displays showing how stratospheric ozone varies with latitude and with the month of the year, showing the natural variations AND how there are anomalies in various places.
But they don’t do that.
Instead they focus on minute changes by day of the month, which is nuts when considering natural phenomena.
In addition, right at the alleged ozone hole is a HUGE source of natural chlorine: Mt. Erebus, a continuous caldera volcano that expels vast amounts all year long. And it is so high [ 3,794 metres (12,448 ft) ] that the eruptions are already two miles high. Since then a number of books and papers have been published about atmospheric ozone. But they are scattershot rather than methodical … collections of anecdotes … stories. They present no data that can be readily compared to previous data in any consistent way. Although the new guys pay homage to Dobson by giving his name to the unit of measure,
they NEVER refer to Dobson’s 40+ years of work, or to his writings, or to his data.
For example, Dr. Dobson published the key graph [ Maduro p 76] in both his 1963 and 1968 editions.
And in 1968, he published the graph published by Maduro p 122.
These excellent graphical presentations have not been updated with newer data. Nor have they been correlated with the monstrous South Polar Vortex which comes and goes with the rising sun.
[0.25 cm = 250 Dobsons = 1/8" thickness of ozone spread thru 30 km of altitude!]
The new guys fuss over 6% “depletion”! A 6% variation of an average cannot be measured with ANY certainty thru 30 km of upper atmosphere!
Dobson’s May to April graphs {2} of the first measurements of Antarctic ozone correlate with the Arctic cycle (adjusted by six months).
[Seasonality in the southern hemisphere is out of phase with ours.] Halley Bay is at 76 degrees S. latitude; Spitzbergen at 80 degrees N. latitude. Dobson also discovered ozone anomalies in Canada and northern India.
Instead of updating the early data, his successors homogenize data {3} and use one-time readings which tell us very little. They use selective data {4}, make retroactive adjustments, and devise theoretical models to create imaginary trends which they then pit against Dobson’s documented observations and experiments (“The Hole in the Ozone Scare”, Maduro & Schauerhammer, 1992). In 1982 Dobson’s instruments were replaced and , voila!, the scary “hole” suddenly appeared.