mrodoc said:

Any Cerberus members looking at this thread. If I remember this was a Cerberus dig years ago.

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whitelackington said:

How is is coming along, must be almost connected with The G.B. / Charterhouse System?

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Aubrey said:

Andy wrote:
"Timber Hole...  where even the metal lid was ice free.

Perhaps it would be a good place to dig... "

I am not sure you are correct.

Under the lid is quite a large volume of air in the dig much of which will be at the normal underground cave temperature (54F).
When snow falls on the metal lid the warmer air underneath will keep the lid warm  enough to melt the snow. There will be a natural circulation of the now cooled air falling away from the metal lid and being replaced by rising warmer air. There MAY be a natural draught but I do not think one is necessary to keep the lid clear of a small amount of snow.

I visited Timber Hole on a digging trip a couple of years ago I was not excited by the potential, despite all of the work which has been done so far.

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Andy Sparrow said:

Aubrey said:

Andy wrote:
"Timber Hole...  where even the metal lid was ice free.

Perhaps it would be a good place to dig... "

I am not sure you are correct.

Under the lid is quite a large volume of air in the dig much of which will be at the normal underground cave temperature (54F).
When snow falls on the metal lid the warmer air underneath will keep the lid warm  enough to melt the snow. There will be a natural circulation of the now cooled air falling away from the metal lid and being replaced by rising warmer air. There MAY be a natural draught but I do not think one is necessary to keep the lid clear of a small amount of snow.

I visited Timber Hole on a digging trip a couple of years ago I was not excited by the potential, despite all of the work which has been done so far.

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Comparing the modest surface warming of Timber Hole to the clouds of steam billowing from Rod's and Lionel's I suspect you are right about this.

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whitelackington said:

So potentially
Lionel's / East Twin / Spar Pot are another Burrington System
waiting to be unearthed.

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Les W said:

whitelackington said:

So potentially
Lionel's / East Twin / Spar Pot are another Burrington System
waiting to be unearthed.

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It's all one system in Burrington Mick. All the caves share common resurgences so they are ALL the same system.  :tease:

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Comparing the modest surface warming of Timber Hole to the clouds of steam billowing from Rod's/Lionel's I suspect you are right about this. 

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Condensation is the change of the physical state of matter from gaseous phase into liquid phase

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Andy Sparrow said:

This was Velvet Bottom today....

....with an incredible deposit of hoar frost on every surface, except...

Timber Hole...  where even the metal lid was ice free.

Perhaps it would be a good place to dig...

If only I could get a key...  :-\

(sorry, Mick)

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