RE: YEC's have abandoned a thick water vapor canopy hypothesis

Vernon, you might want to look at http://home.entouch.net/dmd/canopy.htm
which recounts the history of the fall of the canopy. However, Vardiman
is now trying to resurrect the theory by having the sun emit only a
thousandth or so of its radiation. That won't work either.

I am particularly proud of this quote from a Vardiman and Rush article:

Rush, David E., and Larry Vardiman, 1990. "Pre-Flood Vapor Canopy
Radiative Temperature Profiles," in Robert E. Walsh, and Christopher L.
Brooks, Proceedings of the Second International Conference on
Creationism, (Pittsburgh: Creation Science Fellowship). , p. 238):

"Morton(1979) was apparently the first to conclude that the canopy would
have made the earth's surface too hot for human habitation (Kofahl did
not calculate surface temperatures). Morton made a number of assumptions
that greatly simplified the problem, and his surface temperatures are
much higher than ours, but the general conclusion is the same: Life as
we know it would not have been possible under a canopy of 1013 mb (1
atm), nor even with a canopy of only 50 mb. When other features such as
clouds are added to the model, this conclusion could be modified
greatly, however. Preliminary explorations with cloud layers at the top
of the 50 mb canopy have shown significant radiation effects which lower
the surface temperature drastically. Unfortunately, while the surface
temperature decreases when clouds are added, so does the temperature of
the canopy, reducing its stability."

Larry Vardiman and Karen Bousselot, cited below state, in aggreement
with my 1979 article:

"Attempts have been made by Kofahl (1977), Morton(1979), Dillow (1982)
and Rush and Vardiman (1990) to model the amount of water which can be
held in a water vapor canopy surrounding the earth and associated
temperature profiles. It has become increasingly obvious through
radiation modeling that the strong greenhouse effect produced by water
vapor severely limits the amount of water that can be maintained in a
canopy which is in contact with the atmosphere. For example, Rush and
Vardiman (1990) found that a canopy containing enough water to create 50
millibars of pressure at its base (the equivalent of about 0.5 meters of
precipitable water) would produce a surface temperature of over 400K.
Even a water vapor canopy containing only 0.1 meters of precipitable
water would produce a surface temperature of about 335K."

> -----Original Message-----
> From: asa-owner@lists.calvin.edu
> [mailto:asa-owner@lists.calvin.edu] On Behalf Of ed babinski
> Sent: Monday, November 01, 2004 3:33 PM
> To: Vernon Jenkins
> Cc: Dick Fischer; asa@calvin.edu
> Subject: YEC's have abandoned a thick water vapor canopy hypothesis
>
>
> Vernon,
> YEC's have abandoned the "thick water vapor canopy,"
> hypothesis. So the "waters above" could not have been
> "massive." Young earth critiques of the canopy hypothesis:
> Larry Vardiman and Karen Bousselot. 1998. SENSITIVITY STUDIES
> ON VAPOR CANOPY TEMPERATURE PROFILES. Fourth International
> Conference on Creationism Pittsburgh, PA (from Institute for
> Creation Research). http://www.icr.org/research/lv/lv-r05.htm
>
> Noah's Flood - Where did the water come from? (from Answers
> in Genesis)
>
> http://www.answersingenesis.org/home/area/tools/flood-waters.asp
Received on Mon Nov 1 19:57:41 2004