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uk.sci.weather (UK Weather) (uk.sci.weather) For the discussion of daily weather events, chiefly affecting the UK and adjacent parts of Europe, both past and predicted. The discussion is open to all, but contributions on a practical scientific level are encouraged. |
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#1
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![]() The relationship with large magnitude earthquakes seems to be a compression of millibars at sea level between the east coast of greenland and a point just to the north of Lapland, somehwere between Svarlbad and Western Norway. IIRC someone posted a link to sea temperatures some time in the middle of December, this set up was followed by a high pressure system over the NW Atlantic. Immediately after the large quake the system returns to a flaccid "negative anomaly". Anyone know what was happening aloft at the same time. I have the Bodendruck charts from way back from WetterZentrale and have no idea what to do with them. If I know what sort of anomalies to look for I might. For our cousins across the way the weather sites to search for are all in Germany: http://www.google.co.uk/search?hl=en...ndruck&spell=1 (Don't mention the war, they might ask us who won.) |
#2
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On Sat, 16 Jan 2010 07:35:10 -0800 (PST), Weatherlawyer
wrote: The relationship with large magnitude earthquakes seems to be a compression of millibars at sea level between the east coast of greenland and a point just to the north of Lapland, somehwere between Svarlbad and Western Norway. What the hell does "compression of millibars " mean? -- ************* DAVE HATUNEN ) ************* * Tucson Arizona, out where the cacti grow * * My typos & mispellings are intentional copyright traps * |
#3
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Hatunen wrote in news
![]() 4ax.com: On Sat, 16 Jan 2010 07:35:10 -0800 (PST), Weatherlawyer wrote: The relationship with large magnitude earthquakes seems to be a compression of millibars at sea level between the east coast of greenland and a point just to the north of Lapland, somehwere between Svarlbad and Western Norway. What the hell does "compression of millibars " mean? At a guess, a close spacing of isobar lines on a barometric pressure map. This results in a pressure gradient from the area of high pressure to low pressure. The closer the lines, the higher the wind speed. What that has to do with earthquakes is only in his mind. Brian -- http://www.skywise711.com - Lasers, Seismology, Astronomy, Skepticism Seismic FAQ: http://www.skywise711.com/SeismicFAQ/SeismicFAQ.html Quake "predictions": http://www.skywise711.com/quakes/EQDB/index.html Sed quis custodiet ipsos Custodes? |
#4
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On Jan 16, 11:38*pm, Hatunen wrote:
On Sat, 16 Jan 2010 07:35:10 -0800 (PST), Weatherlawyer wrote: The relationship with large magnitude earthquakes seems to be a compression of millibars at sea level between the east coast of greenland and a point just to the north of Lapland, somehwere between Svarlbad and Western Norway. What the hell does "compression of millibars " mean? Earthquakes,.in this case. |
#5
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On Jan 18, 2:54*pm, Weatherlawyer wrote:
On Jan 16, 11:38*pm, Hatunen wrote: On Sat, 16 Jan 2010 07:35:10 -0800 (PST), Weatherlawyer wrote: The relationship with large magnitude earthquakes seems to be a compression of millibars at sea level between the east coast of greenland and a point just to the north of Lapland, somehwere between Svarlbad and Western Norway. What the hell does "compression of millibars " mean? Earthquakes,.in this case. Can't resist - as you unwisely brought it up: go on W. Predict one. |
#6
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On Jan 16, 3:35*pm, Weatherlawyer wrote:
The relationship with large magnitude earthquakes seems to be a compression of millibars at sea level between the east coast of greenland and a point just to the north of Lapland, somehwere between Svarlbad and Western Norway. Bear Island and Shannon Island off central East Greenland. IIRC someone posted a link to sea temperatures some time in the middle of December, this set up was followed by a high pressure system over the NW Atlantic. From UK.sci.weather. Paul someone or other. I forget. Immediately after the large quake the system returns to a flaccid "negative anomaly". |
#7
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On Jan 16, 3:35*pm, Weatherlawyer wrote:
Immediately after the large quake the system returns to a flaccid "negative anomaly". I obtained a list of all the earthquakes for 2009 between magnitudes 4 and 2 from the NEIS site. (An offshoot of the USGS I think. I am not sure how the hierarchy works but the whole US system on earthquake data is pretty amazing if you have a few hours to spare.) I condensed what I wanted out of it into this file: http://my.opera.com/Weatherlawyer/bl...akes-from-2009 It didn't translate too well through Microsoft. So much for open office. 8689 Earthquakes 4.0 M. to 12.0 M. 2009 I'm using Open Office so the whole mess has been a nightmare but after I got something like what I was after, I started to look at it. The first thing I noticed was something I'd forgotten, a phenomenon I hadn't explained to myself or come to grips with. (And subsequently, forgot.) Large magnitude earthquakes are associated with the death throes of a large storm. But there is something similar to that phenomenon that had slipped my mind: 31st December 59.56 North. 150.79 East. 6.0 M. 59.58 North. 151.04 East. 5.6 M. 59.51 North. 151.28.East. 5.4 M. They are in the same place, they run consecutively and the type often occur within seconds of each other. Sometimes they are a few hours apart but either way they are presented consecutively on the NEIC lists. Something is going on under the planet that stops earthquakes occurring elsewhere until these little beauties have finished doing whatever it is they do. And it affects the weather too. Not just in the North Atlantic. Why should they be confined to the North Atlantic? They don't occur in that basin alone. They are planet wide phenomena. Sometimes the run is just two, though usually there are three or more but often another quake occurs in some other region to break the run. The effect on the weather reflects this phenomenon too. But as I say, I had forgotten the phenomena and even now can't remember what the permutations are. They usually mean a halt to the storms that are running at the time, or that the storm is approaching its end. This is most apparent when just two such quakes occur. IIRC when three occur it means that another storm is about to replace the last one. (Or does it? I can't remember.) To be honest the whole idea needs looking at closely. And I don't have the sort of concentration that allows me to keep all those balls in the air whilst I am thinking about them. |
#8
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![]() I'd just finished messing with the files and was washed out. I was disappointed that the data contained map references rather than place names. I was thinking: "Why not both?" Well; why not both? But then I saw: 59.56 North. 150.79 East. 6.0 M. 59.58 North. 151.04 East. 5.6 M. 59.51 North. 151.28.East. 5.4 M. ....in the untidy heap right at the end of the list, only a few days old. Nothing to do with Haiti. And so I wondered: "How about the Solomons?" No the Solomon Islands are in the southern hemisphere. And that's when I noticed they were a set. To be honest what I was looking for was a relationship with the number of quakes in a 24 hour period and the incidence of large or small magnitudes. And I was thinking: "How the bloody hell am I going to sort this lot out." There are nearly nine thousand earthquakes on this file and that's just from one year. There isn't one on here that isn't tied into an High or Low pressure system, somewhere or other. (And it follows that where they are joined at surface level, they may be joined in the clouds too. If you want to look at that aspect, you are on your own. I have more than enough to play with here, for now.) (It'd play havoc with your cartography. I'd love to see how it works. Maybe in another lifetime?) So where is this idea going? If all quakes and tremors are directly related to cyclones and anticyclones, how can this data base be used? Obviously, what I was looking for was a way to prevent such disasters as the Haitian one occurring. But desperate times seem intimately linked with the Xmas holidays. So no-one should have been caught with their pants down. OK usually it is a matter for coast guards and lifeboat men concerning drunken sailors, but that doesn't mean any other emergency services could be stood down. The Haitian quake was giving signals starting in mid December. Someone posted a link to unusual sea temperatures. (Another feature rich data presentation from the USA (Why can't we have something like that? We used to rule the waves. In the good old days we'd chop the heads off kings that failed us so badly in matters nautical.) I look at the data that the Met Office keeps from the Great British Public and wonder: "What the hell they are playing at?" Given a free hand, I'd whip the lot of them before I sorted out the ones I was going to hang. Every last one of them. And I don't just mean a slap either, I'm talking about severe injuries, hospitalisation, maybe surgery and MRSA. Preferably MRSA without the surgery! ".....so I wondered: "How about the Solomons?" The Solomon Islands are in the southern hemisphere. And that's when I noticed they were a set....." I'm still looking at the file. Take a look at it yourself. There is a reason why some "long list" days have magnitude 5.5 and higher quakes. I don't know why but there must be a reason. Think about it. Storms going ashore break up their cohesion. All the pressure waves met in them at sea, filter out like chromatographs. Weather systems build up before some obstacle at sea, then dissipate as they reach shore. It's either fine weather/heavy weather with what I call a very "positive" North Atlantic Anomaly with the various pressure systems sharply defined, or they are flaccid spells with low High pressures and high Low pressures. Negative anomalies. You can't have both large magnitude quakes and many small ones on the same page. They are mutually exclusive. Only: Not. So what is happening? Tornadoes? They famously happen when the UK is under a pall, misty, flaccid weather. But not for some. I have lost the link for the data base that lists them. I know they are available from the USA government but some chap over there has them sorted. OK they take years to prepare so I need to compile a list for 2007 or something... Damn! That's assuming I can find the link. |
#9
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![]() There is a way to filter colloids and solutes from a liquid using filter paper. Filter paper is a medium similar to blotting paper but it doesn't fall apart so easily. http://en.wikipedia.org/wiki/Paper_chromatography The liquid flows through it fairly rapidly. So quickly that it tends to leave behind the heavier molecular stuff in its composition. The heavier stuff tends to remain near the source. More easily moved particulate moves out a little further. In time the solute leaves a trace of its components in a series of bands. The medium of rocks works the same magic on the atmosphere. When a pressure wave moves across the land, its connection to the earth is what gives the columns of air its character. Atmospherics often present phenomenon as "statics": A column of air if perfectly calm, or if contained in a tube that reaches out to the moon, contains 15 pounds of material for every square inch at the foot of the column. This is equal to 30 inches of mercury, more or less the same amount of lead. Or an iron bar about 5 feet long, if you have ever weighed a piece of fencing of that material. Its a fair weight. What is iron; 5 or 6 times heavier than wood? A wooden pole, one inch thick, 35 or 40 feet long? A lot of air. A clue by four as long as your arm. 14 Arfur Bricks. All balanced nicely, one atop another That's statics. Fluids are different, they don't have a finite limit. There is no "column" of cyclonic air. You don't see it coming and you can't see it going. And sometimes it hits you in the teeth. Hence the term "The teeth of the gale". Sort of like getting hit in the teeth by fourteen socks-full of half bricks by some girl called Gale Or Katrina. Who the hell thought sending US soldier to Haiti might be a good idea? |
#10
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I'll post this to my blog on Opera where the sea level pressure charts
can be viewed. You can find them for yourself at Wetter Zentrale's servers: WetterZentrale Fax Bracknel Archiv So what about the signal? 2010/01/03. 4.7 M. Solomon Islands. 2010/01/03. 7.1 M. Solomon Islands. 2010/01/03. 6.6 M. Solomon Islands. There is a pressure wave over the 20 or 30 degrees of longitude between Shannon Island, East Greenland and Bear Island, North West Norway. (It's more like 10 degrees on a Great Circle arc.) Not far at all, for weather pressure systems. What it equates to in size and scope is an hurricane or typhoon, broaching in warmer waters. Something similar happened just before the Haitian earthquake: Similar pressure grade, same longitudes but lower latitudes and the system is reversed. What looks to be important are the potential differences. Is there a relationship with the latitude and the epicentres? I think so. There seems to be a relationship with longitude and longitudinal distance. Whatever the case, these things can be seen coming afar off and their camels can be herdeth rattling. There was no reason for anyone to get hurt in the Haitian earthquake. But then again there was every reason to listen to me. But who on god's earth was ever going to do that? Once again I am indebted to Wetter Zentrale for allowing me to access these charts. |
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