Tree Shadow, 2 February 2005.
- A nearby tree casts a shadow on the station at certain times of the year.
It's clearly shown in the red curve on this otherwise sunny day.
The black curve shows the solar insolation at another station in our
- The figure at the bottom of this page shows solar intensity as a function
of time. Each column in the plot represents one day. The number of days
since installation are shown along the horizontal axis. The switch to
daylight savings time and back again is obvious.