Thursday, October 4, 2012

What this makes me realize is that even a moderate eruption of one of the Cascade volcanoes could ha




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European airlines are taking test flights to see the effect of the ash on their aircraft in hopes to convince EU officials to reopen airspace. Now, officials from KLM say that everything went fine in their test flight, but I haven t seen any details about flightplans, altitude and all the sorts of info you d want to see if you want to believe these test flights are representative. However, the president of KLM does have a bit of a point in saying that this ash is not unprecedented in the world of aviation volcanoes are erupting along Indonesia, Alaska, Japan, Kamchatka and elsewhere around the world without widespread nassau boutique hotel beach colonial problems. However, the key question is how similar midtown lofts atlanta rental is this eruption to those that occur around the world all the time and at what timescales nassau boutique hotel beach colonial could ash concentration change in the air over Europe. One other thing I don t know and maybe somebody out there does do most commercial pilots nassau boutique hotel beach colonial get trained on ash avoidance? nassau boutique hotel beach colonial However, there is still no word on when all of European airspace will reopen but we may see up to 50% of normal flights by Monday .
The eruption continues midtown lofts atlanta rental nassau boutique hotel beach colonial unabated midtown lofts atlanta rental nassau boutique hotel beach colonial as of this morning. The l atest ash models show continuing ash over Europe according to the London VAAC and, for the first time, the potential of ash, although very minute and high, over Nova Scotia by Monday (potentially). We have some reports about the impact of the eruption nassau midtown lofts atlanta rental boutique hotel beach colonial on farmers in Iceland and the various inconveniences caused by the ash around nassau boutique hotel beach colonial the world.
Be sure to check out the comments midtown lofts atlanta rental sections from earlier posts for some great image collections and t his new one from Marco Fulle showing the crater on the glacier itself. The explosions nassau midtown lofts atlanta rental boutique hotel beach colonial look like textbook examples of Surtseyan explosions but all the water involved is glacial meltwater midtown lofts atlanta rental nassau boutique hotel beach colonial (not seawater nassau boutique hotel beach colonial like at its namesake Surtsey). Amazing stuff!
Erik! The picture from Marco Fulle is not displayed, accessing either of the links Stromboli Online or this new one from Marco Fulle result in a 403 Forbidden You don t have permission to access to this document on this server nassau boutique hotel beach colonial midtown lofts atlanta rental being displayed.
midtown lofts atlanta rental Nice pics, but I don t think that is actual fire fountaining in the first picture, because a fire fountain requires mostly molten ejecta I just think the ash is hot enough to incandesce, or is reflecting the incandescence of the vent itself (in a long exposure like this, the red colour of such an event can be quite intense), or both. It may be partially midtown lofts atlanta rental molten, nassau boutique hotel beach colonial but that would be highly unusual for any andesitic ash eruption, and even more unlikely given the water component which is quenching the andesite.
However, this eruption is pretty strange: it is possible that the new basalt encountered and assimilated enough rhyolite to make it of andesitic nassau boutique hotel beach colonial composition without cooling that much. I am not a high-temperature geochemist so I really don t know if an andesite could be almost completely molten at the surface of the earth under certain specific nassau boutique hotel beach colonial conditions, and if it could be, are those conditions met here?
If so, the phenomenon in that photo is probably more likely to be analogous to the littoral explosions that are common in Hawaii when a large quantity of basaltic magma is instantaneously exposed to water (flinging molten material and glass and/or rock fragments everywhere), than a genuine fire fountain caused by dissolved gases rapidly exsolving out of the magma.
Airlines deal with massive thunderstorms all of the time, but they do not fly through them. (Or when they do, bad things tend to happen.) You don t land at Denver if there is a large thunderstorm on top of it no matter how badly you want to.
Humans have a really midtown lofts atlanta rental difficult time dealing with things midtown lofts atlanta rental that are beyond their control. midtown lofts atlanta rental The problem for pilots is that those things usually move on fairly quickly and ash doesn t seem to. We just have to wait for the sky to clear. It might be awhile or it could happen tomorrow. That is the fun of geology as I understand midtown lofts atlanta rental it.
I think it is more likely, though, that everybody will take off and land safely, but will trash the engines in the process. (Are they going to vacuum the runway between each takeoff?) If we have a crash six months on that is even remotely due to ash damage that would really hurt the industry. All planes in Europe now would essentially have to be scrapped or turned into cargo nobody would fly anything that had been through midtown lofts atlanta rental this.
What this makes me realize is that even a moderate eruption of one of the Cascade volcanoes could have economic impacts that are hard to predict. Helens was fairly interminttant as I recall, and we were actually generally lucky with where the ash ended up. Ranier or Baker seem to have the possibility of shutting down West Coast air traffic.
midtown lofts atlanta rental Before rushing out to your travel agent note that there is another complication. According to the forum on pprune.org the people who make the engines say that any engine nassau boutique hotel beach colonial that has been exposed to ash on the ground requires an inspection and complete oil change nassau boutique hotel beach colonial (in addition to cleaning.) Any that have encountered ash in the air require a very complete inspection, long term logging, and oil change.
I don t have any idea how long this takes per engine, but I would in aircraft speak expect delays. Airports are not really set up to do this (no place really is, imagine if all cars had to be brought in for servicfe at once.) midtown lofts atlanta rental I would even be a bit surprised if the stock of filters midtown lofts atlanta rental holds up. I guess they could fly some in oops.
The part I left off in my post is that this complete oil change and inspection has to happen midtown lofts atlanta rental EVERY FLIGHT. nassau boutique hotel beach colonial Having dealt with different sorts of engine midtown lofts atlanta rental companies I doubt that these recommendations are going to change to accomodate the needs of the customers. They have no financial incentive to join a potential billion+ lawsuit if a couple of planes go down due to ash.
In the time I ve lived in Alaska, Mt. Augustine has erupted 3 times, Mt. Redoubt twice and Mt. Spurr once. There has been a lot learned about flying when ash could be present. I belive a speciallly equipped nassau boutique hotel beach colonial aircraft using LIDAR has been employed to track ash as have pilot reports at discrete altitudes when arriving or departing from Anchorage. The Alaska Volcano Observatory midtown lofts atlanta rental (AVO) and National nassau boutique hotel beach colonial Weather Service have cooperatively developed tools using wind observations nassau boutique hotel beach colonial and forecasts to predict where ash could be based o

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