Unknown issues caused the temp and RH values to become lower during non-sunlight hours.
The affects are best seen at sunrise and sunset when the data would adjust upward or
downward abruptly. Plots of the standard deviation show abrupt spikes at these times.
Comparison plots to nearby mesonet sites suggest the nighttime values of both temp and RH are
lower than nearby sites. This problem was also very intermittent and was not occurring on
a daily basis. A complete move of the sensors and collection system to a separate
building repaired the problem. |