Open joneslabND opened 4 years ago
Put together some figures etc. PAR is amount of light, showing pattern throughout the day. Should be highest midsummer etc. Seems like there are mistakes interrupting this pattern--try to find them, visualize them.
For 2016 at EL, we only see this problem in May.
In 2015 at EL, all months also show this leveling-off pattern.
Of course, it's possible that this isn't a strictly month-to-month pattern--e.g. some of the other months in 2016 may have the problem for a few days, just not enough to create a huge bar in the histogram. I can investigate that in more depth if we want.
I started looking at other lakes and years, but I'm a little stumped because I don't know what the values are supposed to be. Is there a value that's necessarily too high, so I can filter using it? Is that kind of maxing out always a bad thing? I checked the metadata files, and they don't say much about what we'd actually expect here, data-wise, just about how the data were processed. Maybe I need to look at B3?
This issue has a script started. See 'gh041_met_QC_sensor.Rmd' and 'gh041_metstation_QC_functions.R' in my archive.
Here's another look at the 2015 EL PAR problem, which I ran into separately before remembering that there was an issue already started.
First, here's PAR plotted for EL and WL for a couple days at the beginning of June
And here's a plot showing this over all of 2015
We should QC the meteorological data a bit more. For example, 2016 EL PAR is a lot higher than usual and saturates for the mid-day on most days.