Effective 20050331.2100, the EBBR.E13 CR10 program was revised to improve the quality of
the primary measurements as follows:
1) An RMS procedure is used to determine max and min limits of acceptable soil heat flow.
This is applied to the individual soil sets. Measurements outside the limits are
rejected and the measurements within the limits are used to calculate the average soil heat flow.
2) Max and min limits are used to determine incorrect values of net radiation, sensible
heat flux (h), latent heat flux (e), and automatic exchange mechanism (AEM) signal. If AEM
signal is outside the limits, h and e are set to 999s. If net radiation is outside the
limits, h and e are set to 999s. If h or e are outside the limits, h and e are set to 999s.
Virtually no incorrect soil measurement will affect the primary measurements of h and e.
By setting h and e to 999s, it can be easily seen that the primary variables are
incorrect; no other interpretation is possible.
Prior to 20050331, the improved CR10 program was NOT in effect. DQRs have been submitted
for known instances of incorrect soil measurements which affected the quality of the
primary measurements of h and e.
Note: the DQR begin date is the begin date of the sgp30ebbrE13.b1 data stream. The
earlier version of the CR10 program was also used on previous EBBR datastream names (e.g.