  We present scintillation noise profiles captured at the Observatorio del
Teide, Iza\~na, Tenerife, over a one-week period in September 2017.
Contemporaneous data from the Birmingham Solar Oscillations Network (BiSON) and
the Stellar Activity (STELLA) robotic telescopes provides estimates of daily
atmospheric extinction allowing the scintillation noise to be placed within the
context of overall atmospheric conditions. We discuss the results both in terms
of the impact on BiSON spectrophotometer design, and for astronomical
observations more generally. We find that scintillation noise power reduces by
half at about~\SI{5}{\hertz}, and is reduced to one tenth
between~\SIrange{20}{30}{\hertz} even during periods of mild Calima, where
visibility is reduced due to high concentrations of mineral dust in the
atmosphere. We show that the common accepted exposure time
of~\SI{<10}{\milli\second} for limiting the effect of scintillation noise in
ground based photometry may be increased, and that depending on the application
there may be little benefit to achieving exposure times shorter
than~\SI{50}{\milli\second}, relaxing constraints on detector gain and
bandwidth.
