11:56

A run of consecutive spells. …

4th January 2009, the lunar phase is at 11:56. I'm never sure which phase it is. First Quarter. That means the moon rises 90 degrees after the sun, in a couple of days time.

On the 27th of December, the New Moon rose at the same time as the sun; some 23 minutes (of time) past Greenwich. There isn't that much difference between 11:56 and 12:23. So by rights, the weather should remain substantially the same for this coming spell.

For us that should mean more cold weather. Your mileage will vary.

Minutes of arc:
The sun moves across the sky one hour every 15 degrees on average. Or, as some would have it: Every hour the sun moves across the face of the earth some 15 degrees.

There are 60 minutes in a degree, the same for geometry as for chronology.

Mascons:
The Atlantic basin contains a large elliptical mascon that stretches from Norway to Florida (IIRC) along its major axis. That is, there is a minute change in the attraction of gravity from the continent of Europe to that of North America.

It really is tiny. The earth's atmosphere has more effect on satellites than the change in the pull of the earth. Even (I imagine ) on the ones that are quite far out. This "pull of the earth" cause a minute change in the trajectory of satellites. Enough to cause them to burn fuels every once in a while for course correction.

That and the occasional hydrogen atom hitting them means that what is essentially a radio/computer operated camera needs to be the size of a bus instead of a suitcase. And thus more attractive to the earth, which means it requires yet more fuel to stay in orbit.

Or if you are running a satellite that weighs trillions of tons… (So handy that the economy allows us to think in such large numbers, is it not?) If you are running a satellite that weighs trillions of tons, your course corrections might be viewed on earth as stirring the weather.

Not a lot of people know that.

(The major axis is a posh way of saying: an oval circle's largest diameter.)

*******

Edit:

Having looked at the latest GRACE images, I'm struck that what I remember is a wide blue area that I though of as an ellipse is now a distinct red region on one side of the Mid Atlantic Ridge and on the other side a broad swathe of blue running in a clumn all the way up the eastern side of N America.

I wonder what it will look like in a few year's time as images have sharper and sharper focii.

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18 thoughts on “11:56

  1. New Orleans is 90 degrees different to the Greenwich Meridian. It should be 6 hours earlier in the day (2pm or 14:00.)So if you live on the same longitude (90 degrees west) you could be on the same time as them. Then you have to add or subtract what your local time does.Venezuela is 60 to 75 degrees west of Greenwich:60 to 75 = 4 to 5 hours =4 x 15 degrees or 5 x 5 degrees from us.75 to 90 is New Orleans time then 15 + 90 is next.I think.But you can just look at your clock on the bottom RHS of your computer. If you are using Windows, double click the clock and see what time zone you are in.A panel opens to allow you to adjust your computer's clock.Click on Time Zone and a map appears in the window.Click on the panel above the map and choose Caracas.It will say something like GMT -04:30 (minus = west.)So you can see there was something wrong with my calculation.A LOT wrong:Good job I have the Internet isn't it.It's all very complicated.But whatever the time is in your locality, the weather is going to suit it. Find out what weather charts your country uses. (On the television and in the local papers.)They will give updates every 6 hours on the national site.Ours is MetO the British Meteorological Office:http://badc.nerc.ac.uk/community/highlighted_sites_old/nat_met_offices.html

  2. I save the national charts that I can understand. I can't make head or tail of the stuff for the upper atmosphere nor what weather buff smake of the computer runs acalled GFSs.The stuff I am interested in are called Analysis maps. They tell you what the weather is doing in the ground the last time it was all collated. (Put together.)Using Windows XP:Open a chart or picture you wish to save from its web page.Right click on the frame.Choose "Save As".Most weather synoptic charts will the same title every day for that time of day. You can't save withem with that title in the same file.Until recently I thought it was enough to just add a number to the title as I was too lazy to bothr with the time and date.What a prat!It means I have to go through them all and change them if I want to put them in similar files to compare them.Thus perish the lazy.

  3. More infor about Gravity Fields:

    About 1000 miles north of the Great Lakes, near Hudson Bay, Canada, the pull of gravity is a little weaker. A new study in the journal Science explains why. Differences in gravity are not unusual on Earth: “If the Earth was a perfect sphere, the gravitational field would be the same everywhere,” says Mark Tamisiea, a geodetic geophysicist at the Proudman Oceanographic Laboratory in the United Kingdom and lead author on the study.

    http://www.sciencefriday.com/news/051407/news0514071.htmlhttp://www.csr.utexas.edu/grace/gallery/gravity/Old_Gravity_Field.htmlhttp://my.opera.com/Weatherlawyer/blog/2008/11/18/blue-moon

  4. Cock:

    A gravity high from the subducting Pacific Plate flexing upward before heading down beneath the Indian Australian plate, a gravity low from the Pacific Plate being thrust down.Water and low-density sediments now fill the space once occupied by denser oceanic plate a gravity high from the dense subducting slab overlain by region of mountains and volcanoes. A drop to a lower gravity anomaly magnitude in the Lau Basin as the Australian Plate is 'pulled' towards the Pacific Plate, forming a back-arc basin.

    What is it with geophysicists that lets them ignore the earliest concepts of force they ever learned?

  5. It is very unusual to get a pair of Mag 7s:4th5.4 M. 01:55:26 Near The North Coast Of Papua, Indonesia5.1 M. 00:55:36 Near The North Coast Of Papua, Indonesia5.3 M. 00:05:12 Near The North Coast Of Papua, Indonesia5.4 M. 00:00:38 Near The North Coast Of Papua, Indonesia3rd5.2 M. 23:01:01 Near The North Coast Of Papua, Indonesia7.3 M. 22:33:42 Near The North Coast Of Papua, Indonesia<5.0 M. 22:23:48 Near The North Coast Of Papua, Indonesia5.2 M. 22:07:48 Near The North Coast Of Papua, Indonesia5.6 M. 21:49:32 Near The North Coast Of Papua, Indonesia5.1 M. 21:30:48 Near The North Coast Of Papua, Indonesia4.8 M. 20:47:35 Near The North Coast Of Papua, Indonesia7.6 M. 19:43:55 Near The North Coast Of Papua, Indonesia<4.6 M. 17:52:50 Near North Coast Of New Guinea, P.n.g.I think we'll see an end to all those tremors in central USA now and a reversion to tornadic stuff once more.

  6. I only got up to catch the last chart of the 3rd.Missed an important on by the look of it.Rats!I won't sleep now.

  7. 2100 2 W ALEXANDRIA RAPIDES LA 3129 9250 911 RAPIDES PARISH REPORTING A TORNADO NEAR ROSS LANE AND HWY 28 WEST. DAMAGE TO A HOUSE WITH ROOF BLOWN OFF ON TO CAR AND POWERLINES DOWN. JUST SOUTH OF THE AEX AIRPOR (LCH)2201 4 NNW BANNER CALHOUN MS 3415 8943 FIRE CHIEF SPOTTED THREE TORNADOES MOVING NORTH TO NORTHEAST NEAR TURKEY CREEK. NO DAMAGE REPORTED. (MEG)http://www.spc.noaa.gov/climo/reports/And some more PNG quakes:4.9 M. Near The North Coast Of Papua, Indonesia @ 13:10:495.0 M. Near The North Coast Of Papua, Indonesia @ 11:49:494.6 M. Near The North Coast Of Papua, Indonesia @ 11:08:524.3 M. Near The North Coast Of Papua, Indonesia @ 08:54:354.9 M. Near The North Coast Of Papua, Indonesia @ 08:12:135.1 M. Near The North Coast Of Papua, Indonesia @ 07:33:006.0 M. Near The North Coast Of Papua, Indonesia @ 07:14:015.0 M. Near The North Coast Of Papua, Indonesia @ 07:09:024.7 M. Near The North Coast Of Papua, Indonesia @ 06:53:414.9 M. Near The North Coast Of Papua, Indonesia @ 06:05:165.4 M. Near The North Coast Of Papua, Indonesia @ 05:44:054.9 M. Near The North Coast Of Papua, Indonesia @ 03:28:314.8 M. Near The North Coast Of Papua, Indonesia @ 02:47:134.7 M. Near The North Coast Of Papua, Indonesia @ 02:29:02

  8. Snow.It tried early yesterday but overnight we got a decent attempt. Not quite an half inch of it but that's still a lot by UK standards.Papua seems to have calmed down and there is nothing on the NEIC lists for anywhere further inland than Nevada.Hope that's not a bad thing.I'm not going to get any daffodils in at this rate. I still have a bag to plant from last September (maybe August) that it was just too wet for me to want to kneel down onto.It's an heavy clay that sticks to the spade in wet weather and makes even a nice day a chore if it is damp and pointless if it is dry.

  9. Three days more of this spell and its foggy out. The cold has moved elsewhere. If I wasn't already certain that snow and fog are so closely linked, I'd have dropped onto the idea all over again.Georgia and Alabama have had strong winds and there have been no postings of inland earthquakes in the USA:2151 WEISS LAKE CHEROKEE AL 3421 8563 WATERSPOUT ON WEISS LAKE. WATERSPOUT LIFTED ON THE EAST SIDE OF THE LAKE. NO REPORTS OF DAMAGE. (BMX)One man's meat is another man's poison, I suppose.The last such a quake immediately before the Papua series was at Yellowstone on the third of January, just after midnight. The last one after was near Reno. A straight line of them through the widest part of the Rockies. I don't know if there is anything that can be read into that. Or even if we should try.We can see them coming but we can't see them going. Why is that I wonder? http://my.opera.com/Weatherlawyer/albums/showpic.dml?album=669409&picture=9142522*******Edit:Something happened on the North Atlantic chart for the 8th January from 06:00 to 18:00 on January 9th.That's when I missed the 12:00. Serves me right. Shit happens when you are doing other stuff.

  10. What this phase and the spell before it look like they are doing or have been doing, is sending highs out from Europe into the North Atlantic. That at least is on the North Atlantic charts from The UK's Met Office.On the Unisys charts loops the opposite seems true where the picture was of low pressure moving south to north (until the last day or two) across the contiguous US states.It's a pity that I haven't watched where they were going to. The Lows disappeared off my radar as I was concerning myself with the likely changes in the the tremors of the Yellowstone and regions mid-west.I have been expecting the return of tornadoes following the series of large quakes in Papua (New Guinea -as was) although it is hardly the season for them.There are still a number of tremors at the swarm but the intensity has fallen by a "Weatherlawyer factor" of 1.E.G.: 1.4 2009/01/01 West Yellowstone, MT 1.4 2009/01/01 West Yellowstone, MT 1.8 2009/01/01 West Yellowstone, MT 1.5 2009/01/01 West Yellowstone, MT 3.0 2009/01/01 Cooke City-Silver Gate, MT 0.9 2009/01/01 Gardiner, MT 3.1 2009/01/01 West Yellowstone, MT 3.1 2009/01/01 West Yellowstone, MThttp://www.seis.utah.edu/req2webdir/recenteqs/Maps/Yellowstone_full.htmlIn other words rather than looking at the actual force values where an intensity value of 3.1M. is an increase by a power factor of 1 over a 3.0M.I rate an increase of 1.5M. to 3.0M. as a factor of 1.It isn't the power train of the waves that I am looking at. It is the influence of the overlapping of their acoustic properties. I don't believe in plate tectonics (or whatever it is called -or might get to be called as failure strikes.)

  11. Is this a portait of a twin or triple quake, or what?Looks like the forecast for the change in the weather promised for this evening is going to be the end of what might have been a decent storm in the SW Indian Ocean.Of course it could just as easily be a series of tornadoes. I just don't have the required smarts -or better still a decent database (if anyone is interested.)So I'm looking at:http://earthquake.usgs.gov/eqcenter/recenteqsww/Quakes/quakes_all.phpand guess what I see, abunch of multiple quakes. All small ones at the moment but it's early yet.Which leads to the question:This earthquake triggering idea…there's no reason to expect it only refers to one so called fault-line. I mean to say..There are no such thing as subduction zones nor the other whatsit called. Sometimes I wish I had an attention span. Or a memory -or something to match my nasty suspicious mind.

  12. 31 December-6 January 2009New Activity/Unrest:Cleveland, Chuginadak IslandDempo, Sumatra (Indonesia)Koryaksky, Eastern KamchatkaShishaldin, Fox IslandsSoufrière Hills, MontserratTungurahua, Ecuador.Ongoing Activity:Bagana, BougainvilleBarren Island, Andaman IsBatu Tara, Komba Island (Indonesia)Chaitén, Southern ChileColima, MéxicoDukono, HalmaheraFuego, GuatemalaKarymsky, Eastern KamchatkaKilauea, Hawaii (USA)Kliuchevskoi, Central Kamchatka (Russia)Rabaul, New BritainSangay, EcuadorSanta María, GuatemalaShiveluch, Central Kamchatka (Russia)Suwanose-jima, Ryukyu Islands (Japan)Ubinas, Perú.http://www.volcano.si.edu/reports/usgs/index.cfm?wvarweek=20081231Anyway, the spell ends tomorrow and should be well on the way to change already by the west coast of N America.

  13. This spell ended just after I went to bed last night. There is a marked North/South front through the east of the North Atlantic. And a tropical storm building in the Indian Ocean.Position on the 11th at 00:00z — Near 20.3S. 68.4E.Maximum sustained winds based on one-minute average – 55 Knots, Gusts of 70 Knots. stormbanner ehabichOver on the othe side of Eurasia the pulses in the ground are moving in longitudinal striations. Not that obviously on this map: Recent earthquakes -worldBut a sample from it shows what I mean: MentawaMore pictures here.

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