In deployment mode, the BPR transmits deployment data every 2 minutes to allow the deployment team
using a deck set to monitor its depth and health as it sinks towards its anchor point on the bottom. The
surface buoy transmits the deployment data via Iridium satellite every 16 minutes to the tsunami warning
center. On the bottom, the BPR measures pressure every 15 seconds to an extremely high level of
sensitivity. Temperature is measured concurrently and used to correct the pressure values. Water column
heights or depths can be inferred from these pressure-level measurements.