Data point erratic and was deleted. During the deployment period, the probe became fouled. These readings were left in but are suspect. This was caused first by a faulty probe and then by a punctured membrane on a replacement probe. Cause unknown, possibly probe blockage.
Values suspect but left in.
Therefore, recorded DO levels could be lower than what actually occurred. These values were likely reading 0.0NTU and are well within the range of variability of the instrument. Probes were not exposed so these values are likely due to pressure changes and the values deviate from 0.0m. Values replaced with 0.0m since they are within the acceptable range of the instrument. All negative numbers were deleted.