Two instruments on this mooring carried pressure sensors - the ADP and the upper MicroCat. The rest pressure is constant over the duration of the experiment for both instruments; thus the mooring probably did not move. The upper MicroCat's rest pressure was 516.2 db, which corresponds to a depth of 511.7 meters. The ADP's rest pressure, 517.6 db, corresponds to a depth of 512.2 meters. Thus to the nearest meter both instruments were at a depth of 512 meters, which is 10 meters shallower than their nominal depth (the depth in the installation logs). Bottom depth is 537 meters in the installation logs. This indicates that we can take the actual seafloor depth as 537 - 10 = 527 meters. An interesting aspect of the MicroCat's pressure record is the presence of high-frequency energy when the pressure increases to more than a meter or so above the rest pressure. This happens daily in conjunction with the diurnal speed cycle. The ADP's pressure record is smoother but that is due to the ADP's one-hour time increment (as opposed to the MicroCat's half-hour increment). If the MicroCat record is subsampled so that it has a measurement every hour, it looks very much like the ADP record.
Move up one level.