Gradient Factors For a Rookie

Please register or login

Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.

Benefits of registering include

  • Ability to post and comment on topics and discussions.
  • A Free photo gallery to share your dive photos with the world.
  • You can make this box go away

Joining is quick and easy. Log in or Register now!

dmaziuk

Contributor
Messages
9,069
Reaction score
5,455
Location
Tanoa
My understanding is that empirically, Haldane found the limit was a multiplicative factor of ambient pressure. I think originally about 2x, later backed off a bit, but still some factor of ambient. With ambient pressure on the horizontal axis, the M-Value line would always increase (for positive multiplicative factor).

See e.g. "Robert Workman" at Dive-Tech: Decompression theory - Robert Workman and Prof A Buhlmann (off the top of google's list)
 

100days-a-year

Contributor
Messages
2,532
Reaction score
1,162
Location
NE Florida
# of dives
5000 - ∞
Over say 40 dives in 12 days it will make a difference.
I routinely did 30-40 dives in a week in 80' -180' /25-55m using ~90/90 and turning off my computer every night to keep it from tracking 02 or slow tissues. Last dive or two of the day would often have a little deco but the first 4 or 5 were of direct ascents with any decompression obligations clearing before surfacing.
I cannot imagine using a lo GFlo having any benefits for me but I imagine you are right that over time the accrued difference will act as a penalty for those who do.
 

inquisit

ScubaBoard Supporter
ScubaBoard Supporter
Messages
863
Reaction score
630
Location
Boulder, CO
# of dives
1000 - 2499
turning off my computer every night to keep it from tracking 02 or slow tissues
I don't understand what you hope to gain with the quoted statement. Computers will "catch up" when you turn them on and update all tissue compartments and CNS based on previously stored information.
 

BlueTrin

PUB newbie
Messages
2,800
Reaction score
1,835
Location
London
# of dives
200 - 499
I routinely did 30-40 dives in a week in 80' -180' /25-55m using ~90/90 and turning off my computer every night to keep it from tracking 02 or slow tissues. Last dive or two of the day would often have a little deco but the first 4 or 5 were of direct ascents with any decompression obligations clearing before surfacing.
I cannot imagine using a lo GFlo having any benefits for me but I imagine you are right that over time the accrued difference will act as a penalty for those who do.
Did you mean that you removed the battery to clear the tissues?
 

100days-a-year

Contributor
Messages
2,532
Reaction score
1,162
Location
NE Florida
# of dives
5000 - ∞
I mean my computers have an on/off switch and have no memory or ability to track dives when turned off.
 
https://www.shearwater.com/products/swift/

Top Bottom