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

  • Monday
    09/24/2018
  • 12:17 PM - Slack Flood
  • 5:54 PM - Slack Ebb

  • Tuesday
    09/25/2018
  • 12:55 AM - Slack Flood
  • 5:54 AM - Slack Ebb
  • 12:53 PM - Slack Flood
  • 6:19 PM - Slack Ebb

  • Wednesday
    09/26/2018
  • 1:25 AM - Slack Flood
  • 6:39 AM - Slack Ebb
  • 1:29 PM - Slack Flood
  • 6:42 PM - Slack Ebb

  • Thursday
    09/27/2018
  • 1:55 AM - Slack Flood
  • 7:24 AM - Slack Ebb
  • 2:08 PM - Slack Flood
  • 7:06 PM - Slack Ebb

  • Friday
    09/28/2018
  • 2:30 AM - Slack Flood

The Narrows

  • Monday
    09/24/2018
  • 12:31 PM - Slack Flood
  • 6:46 PM - Slack Ebb

  • Tuesday
    09/25/2018
  • 12:58 AM - Slack Flood
  • 6:41 AM - Slack Ebb
  • 1:09 PM - Slack Flood
  • 7:12 PM - Slack Ebb

  • Wednesday
    09/26/2018
  • 1:31 AM - Slack Flood
  • 7:23 AM - Slack Ebb
  • 1:47 PM - Slack Flood
  • 7:36 PM - Slack Ebb

  • Thursday
    09/27/2018
  • 2:03 AM - Slack Flood
  • 8:06 AM - Slack Ebb
  • 2:24 PM - Slack Flood
  • 8:02 PM - Slack Ebb

  • Friday
    09/28/2018
  • 2:36 AM - Slack Flood

Current & Tide
Predictions


Current
Corrections