An experimental investigation is described in
which a Pepsios high resolution pressure scanning s pectrometer
is used to measure the absorption of light due to
atomic sodium in the upper atmospher e. Design and construction
of the spectrometer will be discussed with attention
given to unique features of the instrument which were
develo ped in this study. An attempt is made to see if any
dependence on the abundance of the sodium can be accounted
for by the proximity to the ocean or by the winds and
extreme turbulence developed by tropical storms and hurricanes.
It is hoped that this data will compliment the
existing data found at other latitudes so that a circulation
dependence may be found.