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

  • Wednesday
    08/16/2017
  • 8:03 PM - Slack Flood

  • Thursday
    08/17/2017
  • 12:15 AM - Slack Ebb
  • 8:42 AM - Slack Flood
  • 3:07 PM - Slack Ebb
  • 9:22 PM - Slack Flood

  • Friday
    08/18/2017
  • 1:20 AM - Slack Ebb
  • 9:39 AM - Slack Flood
  • 4:08 PM - Slack Ebb
  • 10:28 PM - Slack Flood

  • Saturday
    08/19/2017
  • 2:28 AM - Slack Ebb
  • 10:32 AM - Slack Flood
  • 5:00 PM - Slack Ebb
  • 11:24 PM - Slack Flood

  • Sunday
    08/20/2017
  • 3:34 AM - Slack Ebb
  • 11:22 AM - Slack Flood

The Narrows

  • Wednesday
    08/16/2017
  • 7:53 PM - Slack Flood

  • Thursday
    08/17/2017
  • 1:00 AM - Slack Ebb
  • 8:32 AM - Slack Flood
  • 3:34 PM - Slack Ebb
  • 9:07 PM - Slack Flood

  • Friday
    08/18/2017
  • 2:03 AM - Slack Ebb
  • 9:34 AM - Slack Flood
  • 4:41 PM - Slack Ebb
  • 10:14 PM - Slack Flood

  • Saturday
    08/19/2017
  • 3:10 AM - Slack Ebb
  • 10:32 AM - Slack Flood
  • 5:36 PM - Slack Ebb
  • 11:13 PM - Slack Flood

  • Sunday
    08/20/2017
  • 4:16 AM - Slack Ebb
  • 11:27 AM - Slack Flood

Current & Tide
Predictions


Current
Corrections