Not to mention the ice storm which took out the power in the burned site – the frustrations with these data unfortunately are continuing…I have been staring at these data trying to figure out why the look so weird, and well I think I have just figured it out.
The timestamp in the unburned forest site is repeating itself. Here is the timestamp plotted on the y-axis and the record number plotted on the x-axis.
Clearly, this should be a straight line, not an undulating one. Could this be due to the low voltage running the stations? Or could this be due to the data cards? Campbell will not really talk to me about this until I have their approved data cards being used in the CR1000 loggers. The next trip to the field these new cards will be installed and we will see. Argh!
Please regularly check that, on sunny days, the solar maximum occurs at solar noon. This will allow you to see if the pyranometers are tilted. It can be fixed after the fact but you’ll need to check this.