Thursday, November 5, 2009
The profiler is on the gray tripod to the left in the picture. The profiler consists of a long bike chain, two gears and a stepper motor to control the movement of the inlet. The profiler raises and lowers our air sampling inlet to the heights of the met tower instruments. The automated inlet allows us to sample at each level every two minutes. The inlet samples air for the N2O5 instrument, NOx and Ozone.