Known exceptions for the following datasets:

BuBW_MX-T0, BuBW_MX-T1
Sensors were originally part of BuBW_M01, at depths 105 and 125 m, but was recovered in Gashamna.
Inspection of temperature data suggests that the sensors got detached from the bottom anchor on Feb 25th and surfaced. 
Acoustic sensor joined in the mooring recorded glacier calving, suggesting that the sensors were stuck under sea ice, near the original location
After sea ice break up, the equipment drifted to Gashamna, where it was recovered on July 3rd.
It is highly likely that the data shows under ice temperature close to the location of BuBW_M02 at depth of 0-1 m and only the last couple of days record temperature during the drift.