Introduction - Surface Based Remote Sensing of the Atmospheric Boundary Layer - page 5

Fig. 1.3 Balloon carrying an
ozone sonde just after
launching from the
Hohenpeissenberg
observatory of the German
Weather Service
are still in use today and serve as a backbone of the worldwide meteorological upper-
air network. Today, special radiosondes for the measurement of ozone concentration
profiles (Fig. 1.3 ) are in use as well.
All these measurements mentioned above were directed to the exploration of the
vertical structure of the atmosphere as a whole, without any special emphasis on the
atmospheric boundary layer. This also happened - as mentioned earlier - because
the recognition of the boundary layer as a separate scientific subject in meteorology
did not start before the middle of the first half of the twentieth century.
1.3 The Beginning of Ground-Based Remote Sensing
Radiosondes are not suited to deliver continuous information in time, and they have
a limited vertical resolution. Meteorological masts could serve for this purpose only
for the first few hundreds of metres (e.g. the boundary meteorology mast at Obninsk