CO2 and light in Biosphere 2
The daily cycle of carbon dioxide (indicated by color) and light (height),
each averaged over several sensors. Each day is represented by one line
reaching from the far side of the figure to the near side.
Blue represents a drop in CO2 since midnight; red, a rise.
The seasonal variation in light
intensity accounts for the rise and fall of the central ridge.
If you follow the contour
lines around the base of the ridge you can also see the
variation in time of sunrise and sunset.
And yes, I know about the glitch in the data near the
beginning of the time series. Think of it as my obnoxious
copyright protection scheme.
Data extracted from a UNIX-based Oracle database, fused and filtered with
special purpose C software. Rendered in NCSA Spyglass on a Macintosh.
