Calculating SAC and RMV

  • Surface Air Consumption (SAC): The amount of gas you breathe in one minute at the surface in terms of pressure (psi). SAC can be expressed as pressure (psi) or volume (cu ft).
  • Respiratory Minute Volume (RMV): The amount of gas you breathe in one minute at the surface in terms of volume (cu ft).
  • Resting SAC: The rate at which you breathe when relaxed.
  • Working SAC: The rate at which you breathe when stressed.

Gas Used (psi):


Duration (min):


Average Depth (ft):


Cylinder Size (cu ft):


Working Pressure (psi):





Admiralty Inlet

  • Sunday
    09/15/2019
  • 6:22 AM - Slack Ebb
  • 1:27 PM - Slack Flood
  • 7:00 PM - Slack Ebb

  • Monday
    09/16/2019
  • 2:07 AM - Slack Flood
  • 7:04 AM - Slack Ebb
  • 2:02 PM - Slack Flood
  • 7:21 PM - Slack Ebb

  • Tuesday
    09/17/2019
  • 2:38 AM - Slack Flood
  • 7:47 AM - Slack Ebb
  • 2:39 PM - Slack Flood
  • 7:42 PM - Slack Ebb

  • Wednesday
    09/18/2019
  • 3:11 AM - Slack Flood
  • 8:34 AM - Slack Ebb
  • 3:20 PM - Slack Flood
  • 8:02 PM - Slack Ebb

  • Thursday
    09/19/2019
  • 3:48 AM - Slack Flood

The Narrows

  • Sunday
    09/15/2019
  • 7:13 AM - Slack Ebb
  • 1:45 PM - Slack Flood
  • 7:53 PM - Slack Ebb

  • Monday
    09/16/2019
  • 2:08 AM - Slack Flood
  • 7:53 AM - Slack Ebb
  • 2:21 PM - Slack Flood
  • 8:17 PM - Slack Ebb

  • Tuesday
    09/17/2019
  • 2:40 AM - Slack Flood
  • 8:35 AM - Slack Ebb
  • 2:56 PM - Slack Flood
  • 8:40 PM - Slack Ebb

  • Wednesday
    09/18/2019
  • 3:13 AM - Slack Flood
  • 9:18 AM - Slack Ebb
  • 3:33 PM - Slack Flood
  • 9:04 PM - Slack Ebb

  • Thursday
    09/19/2019
  • 3:47 AM - Slack Flood

Current & Tide
Predictions


Current
Corrections