YOWN Water Level Grading Criteria

A: Good agreement (<2cm) between field visit readings at beginning and end of time period with logger data after drift adjustment.

B: Fair agreement (2 to 5 cm) between field visit readings at beginning and end of time period with logger data after drift adjustment

C: Poor (5 to 10 cm) agreement between field visits and logger data at beginning and end of time period. Drift adjustment applied to compensate for potential logger drift, but one of the field visit readings could be erroneous or logger data could be unreliable. 

Redacted: Greater than 10 cm difference between field visits and logger data at beginning and end of time period. Field visit or logger data likely erroneous, or other critical data issue.

Missing Data: Logger or barologger malfunction