Author Topic: 1mm of rain in 18 days....  (Read 4823 times)

Online Rob

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1mm of rain in 18 days....
« on: April 09, 2007, 11:02:38 am »
So, there's Big Dig in Carlswalk, Lathkill Head to Waiting Room, Cales Dale...

What trip ideas do people have that we should be making use of this dry weather with?
The end is where we start....

emgee

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Re: 1mm of rain in 18 days....
« Reply #1 on: April 09, 2007, 05:59:59 pm »
So, there's Big Dig in Carlswalk, Lathkill Head to Waiting Room, Cales Dale...

What trip ideas do people have that we should be making use of this dry weather with?

Probably not dry enough for long enough yet but P8.

Offline zomjon

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Re: 1mm of rain in 18 days....
« Reply #2 on: April 09, 2007, 06:26:48 pm »
P8! Are we talking about the sump opening up? Now that would be good. Myself, I've always fancied a chance to enter ladyside or Darfur Pot.

Offline Marcus

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Re: 1mm of rain in 18 days....
« Reply #3 on: April 09, 2007, 08:57:09 pm »
P8! Are we talking about the sump opening up? Now that would be good.
Not a chance. Water is low generally, but the downstream sump pool is at the normal level. 1 & 2 are wide open, but 3 gets a little snug just before breaking surface (lacked b@lls today). The entrance of each sump has very soft silt (which feels more like quicksand) and the exit to each sump is coarse gravel. No water flow.

But if the dry weather keeps up, you never know. Not sure where the water drains to though. :-\

On the plus side, I did find my lead from 11 or 12 years ago! ;D :blink:

Marcus

Online Rob

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Re: 1mm of rain in 18 days....
« Reply #4 on: April 11, 2007, 05:17:50 pm »
Don't suppose anyone has been underground recently and noticed any low water conditions?
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Offline mmilner

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Re: 1mm of rain in 18 days....
« Reply #5 on: April 11, 2007, 11:54:38 pm »
Hi Rob.

I've been trying to register for a few days now. Anyway...

Ladyside has been accessible for about 2 weeks. (We went down there while the river was flowing through the sunday before last.) So you'd be able to explore the cave between the first upstream and downstream sumps.

The sump in Darfar Pot was at top of third (top entrance) pitch last wednesday. Should have gone down another 60ft or so by now. So will be below the top of Pedigree Pot.

I'll be down there on sunday, so can report in more detail after.

Cheers,
Martin.
Norbert Casteret (Ten Years Under the Earth) and Pierre Chevalier (Subterranean Climbers) were my inspiration to start caving. (And I'm still doing it.) Secretary, Darfar Potholing Club, the Peak District.

Offline SamT

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Re: 1mm of rain in 18 days....
« Reply #6 on: April 12, 2007, 01:53:27 am »

Rob - you texted me about Namraed.

Pool chamber was down - but there was no draught - so Namread must still be up.

Historically, it doesnt tend to drop till august september. But will ask john to check for a draught at the gate tomorrow.

Online Rob

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Re: 1mm of rain in 18 days....
« Reply #7 on: April 12, 2007, 03:43:57 pm »
Tis interesting as it shows how slow it must respond. As a way of escaping uni work (very succesfully i might add) i have come up wit these fugures, comparing when i went through Namreed with you in 2005, and now.

from 30/8/05
80 rain total = 186mm
101 rain total = 230mm

from 12/8/05
80 rain total = 139mm
101 rain total = 299mm

(Figures from HnH, 101 chosen as longest period before no data section between 6-22/05/05)

I know, i'm sad!  :-[
The end is where we start....

Online Rob

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Re: 1mm of rain in 18 days....
« Reply #8 on: April 12, 2007, 03:46:07 pm »
Or maybe this just proves the effect of seasonal evaporation rates on groundwater levels  :coffee:
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Offline littletitan

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Re: 1mm of rain in 18 days....
« Reply #9 on: April 12, 2007, 04:14:26 pm »
 :sleeping:


Offline SamT

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Re: 1mm of rain in 18 days....
« Reply #10 on: April 12, 2007, 10:31:49 pm »

Namread responds to filling very very quickly - almost immediatly. If its down - and you go through - and its starts raining on the surface - it could well be back up by the time you return. Happened to moose and tony R once.

Cant remember the dates - but I went through once on a monday - and it was bone dry.
Returned it rained on thursday overnight. On Saturday - it was half full (i.e. a lot of water).

However - it is very very slow to drop. Some years it doesn't even drop.

Will keep an eye out for a draught over the next few months.

Offline Moose

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Re: 1mm of rain in 18 days....
« Reply #11 on: April 13, 2007, 05:18:14 am »
Re. Namread - It's about time someone blew the bloody roof of the damn place, better still bypassed it, what a god forsaken spot. You can talk rainfall all you like Sam/Rob, get your finger out!

Offline Pitlamp

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Re: 1mm of rain in 18 days....
« Reply #12 on: April 13, 2007, 06:48:11 am »
How long is the sump when it's full?

Offline Johnny

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Re: 1mm of rain in 18 days....
« Reply #13 on: April 13, 2007, 11:18:23 am »
About 10m and it would be a grim dive.
Its low and the vis would be zero, there are low alcoves on both sides all the way through and plenty of protrusions from the roof to get snagged on.
Next time it empties I am going to bolt a line to the floor to mark the best route through.
Onwards to glory!

Online Rob

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Re: 1mm of rain in 18 days....
« Reply #14 on: April 13, 2007, 08:17:22 pm »
Nipped down Lanthkill Upper Entrance today with BatGirl and Jeffers to check the Lathkiller Hall sump level and attempt to come out Lathkill Head. Although upstream was all a lot drier than the last time i was there it was still sumped by at least 60cm.  :chair:

However, that gave us plenty of time to run over to Lower Cales Dale Cave, tis good fun in there, nice thick mud!  :clap2: Really hope that sump drops this summer!
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Offline mmilner

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Re: 1mm of rain in 18 days....
« Reply #15 on: April 15, 2007, 10:59:14 pm »
P8! Are we talking about the sump opening up? Now that would be good. Myself, I've always fancied a chance to enter ladyside or Darfur Pot.

Hi Zomjon. The sump in Darfar Pot is well below the top of Pedigree Pot, (the final 55ft pitch), so most if not all of the cave is now accessible. I didn't go down any further as I was on a solo surveying trip. (Ugh, spits out mud!) You'll need two 25ft ladders for the 1st and 3rd pitch of the top entrance way in. The second pitch is just a scramble and has a knotted handline on it.

Cheers,
Martin.
Norbert Casteret (Ten Years Under the Earth) and Pierre Chevalier (Subterranean Climbers) were my inspiration to start caving. (And I'm still doing it.) Secretary, Darfar Potholing Club, the Peak District.

Offline Pitlamp

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Re: 1mm of rain in 18 days....
« Reply #16 on: April 16, 2007, 07:26:05 am »
That sump sounds grim Johnny.  Then again, if it's possible to get a solid line through it (during a drought), in exactly the right place, then it'll be slightly more reasonable. 

By the way, those two tanks from Steve in the Dales were delivered to the Chapel on Saturday morning; did you get them OK?

Offline SamT

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Re: 1mm of rain in 18 days....
« Reply #17 on: April 16, 2007, 12:10:57 pm »

Yes moose - need to get back to that dig at the end of sump one. I think a by pass is order of the day. Too much bloody arduous passage between namraed and the objectives at the end.

Online Rob

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Re: 1mm of rain in 18 days....
« Reply #18 on: April 19, 2007, 11:56:50 am »
In case anyone's interested, Big Dig in Carlswalk was fully open last night, hardly got wet going through. Didn't look like we were the first there since it'd dropped either.
1mm in 28 days now. Come on summer!  :bounce:
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Offline seamoose

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Re: 1mm of rain in 18 days....
« Reply #19 on: April 20, 2007, 01:13:04 pm »
Nipped down Lanthkill Upper Entrance today with BatGirl and Jeffers to check the Lathkiller Hall sump level and attempt to come out Lathkill Head. Although upstream was all a lot drier than the last time i was there it was still sumped by at least 60cm.  :chair:

Went down top entrance last night.
Downstream was still sumped at the bottom of the Lathkiller choke.
Upstream was completely dry.

As a side issue where do people rig the deviation sling for the final section of the pitch?
I tied one round a bit of a flake but when we saw Bob in the pub after he says there's an 'iron peg' which he is adamant is still there - but me and Pete couldn't see it...

Offline Karen S

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Re: 1mm of rain in 18 days....
« Reply #20 on: April 20, 2007, 08:51:23 pm »

As a side issue where do people rig the deviation sling for the final section of the pitch?
I tied one round a bit of a flake but when we saw Bob in the pub after he says there's an 'iron peg' which he is adamant is still there - but me and Pete couldn't see it...


We didn't believe Bob either, but it's definitely there, it's just really hard to spot.  If you face the 'y' hang, it's behind you, low down on the left and it's very small.   :thumbsup: