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Moomin71

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Posts posted by Moomin71

  1. 14 hours ago, Beanz said:

    Totally agree, it all adds to the festive build up too - it feels right for pre-Christmas to be cold (and snowy) because that’s what we all believe is traditional.  January cold, unless it’s a foot of snow I’d rather it started to warm up by mid-Jan. 

    It won’t happen this year, guarantee it because I swapped my BMW for a Land Rover with winter tyres. 

    Don't be so sure Beanz, I will have swapped my Defender for a Tesla (not my choice work told me to!) by mid September.  Last time I didn't have a Defender/Utility Land Rover was between 2009 and 2011...... Not chart analysis or statistics but just saying 🙂

  2. Yes it does worry me, we should be OK as I am in a good job etc but we are still already paying more than double that we were paying last year, whilst we can take that hit there are many who cant and it will mean we wont spend the money on extra stuff or simple things like going to Aldi rather than the farm shop.  its these impacts that just is not being discussed in the press as well as the impact on SMEs Of these very high energy costs, unless whoever the new PM is actually gets hold of this and does something very significant then I do worry for all of us what impact it will have on the economy and society, i am usually a very positive person but at the moment the prospects for this winter are looking pretty grim.

  3. Mambo No 5 reminds me of this transition.  Must have been September 98 or 99 a group of us from Uni met up at a mates house in Bristol for a weekend of revelry and it was a glorious weekend, warn sunny and still, bit too still for the kite festival at Clifton Park they had to drag the big kites around the arena by landrover to get them airborne.  Mambo No5 was played a lot in the clubs we went to, weather started to turn properly autumnal after that.  A great weekend and happy times.  Daft song but always raises a smile!   

  4. 8 hours ago, alexisj9 said:

     

    One of the bits of news on this site.

    Surely they didn't start it on purpose to stop earthquakes, that's what the news says anyway. Now what. 

    I hope it's a mistranslation, I'm not sure starting an eruption mechanically, is a good thing. As for stopping it, good luck, it's nature.

    I think the hard working rescue teams might be having a joke??  Does beg the question how you could start a volcanic eruption, best i can think of would require something like a drilling rig advancing a borehole at just the right location into the underlying magma and having a drill crew who are fit enough to run really fast once they've started it  , obviously the drill rig would be lost.  Or a really big bomb perhaps in just the right spot.

    • Like 1
  5. Add that story to the striking image of the big fat hole in the Ice Cap and..... tick tick  :bomb:

    Quite right Lorenzo.  That photo is pretty impressive, it must be one hell of a feather under that ice to result in a surface expression of that magnitude! 

     

    Picking up on Rustynailers point, there will be some melt although where that's going at the moment is a bit of a mystery unless it isn't erupting yet and that depression is as the official web sites are suggesting is just the result of rifting.  If it is erupting under there it will be melting but could be getting trapped, a bit like a dam, this will give way at some point with a huge outburst flood.  Grimsvotn did this in 1994 if I remember correctly and took out a number of bridges and sections of the main ring road.

     

    M

  6. The glacier will take a few hours melting above the "glacier fissure" If it is say 200 m high fountains, it should be through by tea time, I suppose. We will see.....

    No it will take a while unless it gets very explosive, the ice and meltwater will cool the surface of the lava which sort of insulates it, that's why Grimsvotn and Bardabunga are almost completely entombed in ice, they've erupted most of the time sub glacially.  A good indicator as to what these volcanos probably look like is Herdubreid, this was similar to Grimsvotn, etc in that it was formed beneath an ice cap.  

     

    This graben development is getting very interesting, things could get considerably more active, this looks to me like it has the potential to become a rift fissure eruption, which if it happens partly beneath the ice will prove explosive and long lasting.

     

    M

    • Like 1
  7. I was just wondering that myself

     

    just got in from work and to see that big crack posted above made me go :shok:

     

    it does seem a bit eiry that not much has happened EQ wise today,maybe the magma has hit a steal wall or something,i dunnow,i am confused with all this.

     

    the calm before the eruption!.

    I think Rustynailer probably summed it up, it is most likely due to lower resistance either the fissures are more open now or, as the dramatic photos suggest the surface cracking is leading to a reduction in pressure.  If it was a reduction in the volume of magma I think we'd see a much bigger drop in the number of earthquakes, whereas the frequency doesn't seem to have reduced that much just the magnitude.  It can't be long now before it erupts, just have to see if it will interact with Askja or not and if the central volcano will play a part or not.  Very impressive photos, sort of stuff nightmares are made of, reminds me of that film from the 1950 I think where the earth was going to be split in two unless some mad geologist launched a nuclear missile down a mine shaft, bonkers film very enjoyable though, lots of scary cracks appearing and disasters happening, anyway somewhat off topic there.  Will have to see how things are in the morning.

     

    M

  8. Blimey, take your eyes off it overnight and it goes mad!  Some big events all over the area this morning and now well intersecting Askja.  Yesterday it looked to me like the dyke may track to the east of Askja, clearly its just gone straight for it.  Things could start to get very interesting looking at the discussions presented in the links posted throughout this discussion.  Especially if it reactivates the magma beneath Askja.

  9. Yes I posted in response to Buriedundersnow's post but saw yours afterwards as we both posted at the same time,

     

    Was just intrigued that estimates can vary that much, apparently a M5.7 earthquake releases 251 times more energy than a M4.1! according to this: http://earthquake.usgs.gov/learn/topics/calculator.php 

     

    Interesting to have it upgraded to 5.7 on the Icelandic Met Office site, even that releases nearly 4 times as much energy than the 5.3's we've had. 

     

    I wonder if it means anything or just continued subsidence as mentioned above, and also whether that 4.6 in the dyke or the 3.3 at about 30km (deeper than what we've seen) means anything much.

    I think the 4.6 in the dyke and the 3.3 at 30km could be another pulse of magma coming in from depth.  That idea will be better supported if there are any more of that magnitude anywhere in the dyke and any further ones at depth.  If I'm right it may also be indicating the magma is going straight for the dyke and bypassing Bardabunga.  The link John Pike posted has some good information, interesting to see the dyke is now 10km north of the ice cap, although the depth of the activity is not pointing to eruption yet if it does happen it seems more than likely it will be at least in part in the open, watch for an increase in very shallow activity.

    • Like 1
  10. Seems to me this is indicative of the magma chamber beneath Bárðarbunga emptying out, as the magma rushes out into the dyke to the NE the cavity left behind is gradually causing the caldera above to sink. Each one of the +5 quakes being in the caldera's edge at a shallow depth. Expect to see more +5 quakes in the next day with even bigger ones to come as more of the caldera sinks into itself.

    Yes quite right Snow, it would be interesting to see if there's any settlement data or gravity data from Bardabunga to see if it backs that up, the link below shows some GPS data

     

    http://volcanocafe.wordpress.com/2014/08/24/bardarbunga-nature-of-the-beast/

     

    But its not from Bardabunga specifically and a few days old now.

     

    Activity does seem to be tailing off but just spotted that there was a 3.3 at 30km depth  about 12:30, could this be a fresh pulse of magma??

     

    M

  11. Yeah,and Krakatoa is much smaller than Bardabunga,which is why i have my optimism,iceland is mostly one big volcano as i see it.

    Not quite, it contains a number of volcanic systems which in most instances work as separate entities, but have the potential to link during more extensive eruptive cycles as seems to be the indication with Bardabunga at the moment.  However, there are a number of peaks that have now moved well away from the rifting zone and are unlikely to erupt again, thus we would not have the whole of Iceland erupting as a single giant eruption that would lead to a tsunami.  The only conceivable way in which a tsunami might be generated from an eruption is if we had a cataclysmic eruption from Surtsey or the Vesteman Islands or caldera collapse at these locations, both of which are unlikely at present as they have not formed calderas and are not characterised by explosive eruptions.  I don't know of any other volcanoes that drop directly into the Atlantic on Iceland.

     

     

    (EDIT:  That'll teach me to reply without refreshing the screen properly, Buried under snow has hit the nail on the head with his reply earlier this morning).

    • Like 1
  12. Thanks for clearing that up Rustynailer

     

    if she does go big would it create a tsunami and would we be efected by it as well as Norway and other surrounding land. 

    Allseasons, even if this volcano has a cataclysmic eruption as Krakatoa did it will not generate tsunamis.  It is too far from the coast whereas Krakatoa was a very small island and surrounded by enormous volumes of sea water which was able to contact the magma immediately after the eruption.  There is obviously plenty of water around Bardabunga in ice form, however this will potentially cause a much more explosive eruption and generate lahars and its distance from the coast means it cannot interact with the sea in a manner which would give rise to tsunamis. 

     

    m

    • Like 1
  13. Right, I'm a newbie at this volcano marlarkey, and am following the github site. Is the increase in quakes over 2.0 a sign of impending eruption or is it just the magma moving and not a precursor to something big? Because there's been a plethora of 2.0+'s on the site and they seem to be coming more rapidly.

    It seems to me that it could mean both just to give an awkward answer.  Its a while since I studied volcanology, groundwater is my specialist field in geology but having read the excellent article Allseasons-si gave the link to its coming back.  At the moment it seems that the M2.0s are indicative of magma moving, it is the direction of movement that is most interesting at present.  It seems the thought is that the link could be made with the Askia system and in essence the longer the M2.0s go on without any eruption the larger the eruption might be.  The M4 - 5 tremors are also interesting as they are indicative of caldera subsidence within the Bardabunga volcano.  Its all very interesting stuff at the moment.  I abandoned a trip with the land rover to this part of Iceland a few years ago, this area having long fascinated me, shame I didn't make it as much of it may be about to change over the next few months!

     

    M

    • Like 4
  14. I suspect it already is Mike in some parts of the world. And not only the obvious like the Middle East.

     

    A Texan tragedy: ample oil, no water

    Fracking boom sucks away precious water from beneath the ground, leaving cattle dead, farms bone-dry and people thirsty

     

    http://www.theguardian.com/environment/2013/aug/11/texas-tragedy-ample-oil-no-water

     

    Might this be connected to the monsoon in in India moomin?

    I fired that reply off very quickly and didn't quite say what I was trying to say! it is quite probably monsoon for India with apparently very permeable aquifers looking at the response.  I was thinking more in terms of the Australian changes, I didn't think there was a huge amount of abstraction in the outback.  Interestingly, and in response to Mike's point, it isn't just over abstraction that is having a negative effect on the UK's aquifers, theres a growing problem of reduced infiltration rates as a result of urbanisation, tarmac and hardstanding coupled with efficient drainage systems is diverting rainfall straight into surface water systems bypassing groundwater.  It seems this is most pronounced in the SE of the UK which makes it even worse due to that area's dependence on groundwater.  I do believe that water will become globally as valuable as oil, if not more valuable and as with energy it comes down to learning to use it more efficiently as well as developing alternative ways of obtaining it.

     

    Moomin

  15. Noticed it working on the car last week, couldn't understand why I couldn't see what I was doing properly underneath the car when it was only 9pm, then realised sun had dipped below the hills behind us.

     

    Still must only be a few weeks now before the snow and ice in the N hemisphere post is resurrected by Chiono!

     

     

    M

  16. FEB 1979 PROPER BLIZZARD!...........

    snowdowlais1.jpg

    snowdowlais3.jpg

    Ah proper blizzard and proper locomotives too! Sorry wat off topic but couldn't resist. I am always interested to see how accurate the models are with teh finer details in tghe short term so I will be watching to see exactly what happens tonight with respect to how quickly things turn to rain. I am suprised at how slowly the milder temperatures are coming through. It was -7 here on the welsh borders last night and I do wonder how much scope there is for keeping this as a snow only event.

  17. whilst it quiet in here... We were all slating the NAE over the last couple of days for showing snow today spreading from wales across to the Midlands.... look at the radar www.raintoday.co.uk I think it was all the other models that failed to spot it! reports of a covering in East wales all the way accross to Newark / Grantham in East Mids!

    I can confirm t has been snowing all day on Welsh borders, slight covering of snow, there was a heavy dusting first thing this morning which has melted back but not gone.

    Just to pick up on Paul 33's point, I commented a few days ago that the models seemed to be starting to do what they did in Dec 2010 when they were constantly predicting milder breakdown but that kepy getting pushed back. To my mind the same thing is happening again, its just that the blocking isn't as strong and we're not getting the same deep cold at the moment. I would not be suprised to see that milder breakdown during next week get pushed back further agian.

    M

  18. I wouldn`t concern myself with the ECM T240hrs-that`s a world away the way the runs are chopping and changing in the medium term

    As a coldie i am delighted with all the runs out to T96hrs-freezing temps and some snow about followed by a calm but bitter period under a high which would trap the surface cold.

    I am happy to take the outputs in 4-5 day blocks and see if the models continue to extend the cold day by day.

    Certainly with the vortex disruption the Atlantic will find it increasingly difficult to ride over the block as zonal winds continue to reverse higher up.

    I can certainly see how the surface cold if it gets embedded could prove difficult for the Atlantic systems to overcome particularly with the disruption to th PV. Whilst I don't want to compare to dec 2010 at this stage I seem to remember the models continually predicted a westerly breakdown which just kept getting pushed further and further back. I may be wrong but it seems to me that this could be happening again, The models earlier in the week were suggesting a milder breakdown that was predicted to happen on Tuesday which has been pushed further and further back. I do get the feeling the models are out of their comfort zone with these synoptics

    M

  19. Re. ground water it should be borne in mind that only a very few areas source water from deep aquifers in this country, and those areas are not likely to be drilled for gas anyway.

    Almost all our water supply is from surface storage or surface springs, and that simply isn't going to be affected by fracking at great depth.

    Even if contamination of groundwater does occur it can be remediated, even at depth or 'fixed' in position through clever use of groundwater extraction or injection wells. However, what tends to happen is that deep groundwater aquifers are low quality anyway due to the length of time water has had in there to dissolve minerals in the host rock.

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