Abstract: Abstract Pump efficiency of the Brewer–Mast (B–M) ozone sonde deteriorates significantly at altitudes above 22 km (pressures below 50 hPa). The correction currently used as the WMO standard does not sufficiently account for the efficiency decrease. It is based on laboratory measurements made in 1965. The authors have redetermined pump efficiency for the B–M sonde and found that a much higher pump correction is appropriate. The net effect of the new pump correction, after Dobson normalization to integrated ozone, is a substantial increase ...
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Topics: 
Atmospheric sciences
Meteorology