2021 3rd quarter WFMS flags

[wmay]

• IPN test, 07-07 -- nothing to flag, just a weird cal check result
• unexplained NO/NOX/NOY/SO2/CO cal failure, 07-20 and 07-21
• unexplained CE cal failure, 08-26
• CO discontinuities (power failures?), 08-02 to 08-05 -- flagged by spike detector
• power issues, starting 09-21 -- spikes only appear in Campbell, not Envidas data. weird.
• weird SO2 spikes, 09-28 -- suspect? no spikes in WFMB data
• more CO discontinuities (probably power related), starting 09-13 -- OK in Envidas
• once per 3 day ozone cals, starting August -- already flagged in DEC Envidas data
• ultrafine flatlines and spikes caused by power glitches, mostly September
• lots of negative wood smoke -- automatic negative flagging is OK