ZRH Airport Info:
http://www.flughafen-zuerich.ch/desktopdefault.aspx/tabid-42/
Geophysical situation in Iceland
make not only the cultural and historical uniqueness of the North Atlantic island of Iceland to the desired destination, but their geological feature fascinates many visitors. The island lies on the border of North American and Eurasian continental plates, about a quarter is on American and three-quarters of the European plate. In between is a 7 km wide trench that extends through the whole island. (For your information: The former is for the Germans historically significant place Þingvellir located approximately on the longitudinal center of the trench in the southern part of the island).
Photo: Stephan Riediker 
small volcanic activities as well as recurring small earthquakes are there almost everyday life that geothermal energy is Iceland's 300,000 inhabitants n used economically diverse. What, however, the spectacle of nature is one, are the rare but surely arriving eruptions that burst every few centuries, the ice of glaciers and emit a considerable amount of ash into the atmosphere.
The potential danger here is not primarily the explosion of the eruption itself, but the consequences for it: The melting water of glaciers caused the one hand, a water stream, which has also a greater force than the Amazon, a hazard that is confined locally. Concern is the risk of the ash cloud, the heavier particles is lowered to the ground and the Icelandic people (according to statements can strain the competent authorities of Iceland) with unhealthy dust. So far, the ash cloud is blown by the wind towards the south-east, making the island for the time being will remain "clean". The lighter particles remain much longer in the higher layers of the atmosphere and with the jet stream winds, and other widely distributed and are also in low concentrations a distorting factor in aviation. can
Sucked in by the engine heats and compresses the Aschenteilchen clump (called aerosols) and block the channel between the casing and nozzle. Also affecting the pressure in the Pitot tube, which leads to incorrect height measurements. (Immediate the active volcano, even a high concentration of fumes worsen the quality of the radar measurements and the radio connections considerably, which follows a wide area but is not an issue). In aviation, it is assumed that the danger of the dirt particles from a concentration of 2 mg per kg of air increases massively. Where such a concentration is, must be determined using various models.
In any event, by this natural event in the European air transport affected massively, so it pays to get informed about the current situation of air transport to avoid inconvenience at best can.
Weather determined to be in Europe
The aviation weather in Europe be made between May and June 2010, with winds from the northwest, from the other activities of the Icelandic volcano Eyjafjallajökull " because of the eruptions both volcanic dust and the finest quartz-containing volcanic ash at a height of 5,000 to 11,000 m "Deposit" or get longer hover there.
Persistent rains, which wash the volcanic substances, such as to be expected in early May 2010. In addition, the atmosphere on Europe in the coming months with dilute sulfuric acid (H2SO2), also called sulfur dioxide solution, which through the combination of hydrogen sulfide (H2S) and sulfur dioxide (SO2), enriched.
Image: Wikipedia (Europe is in the sky horizontally with really clear day, a light color to be visible, as if one is right near a big city.)
If the volcanic eruption of the massive eruptions over the Stop the summer of 2010 continues, it can have a massive cooling over northern and central Europe.
commercial aircraft flying at a cruising altitude between FL 300 - 400, ie 30,000 - 40,000 ft, which is about 10,000 to 12,000 m equivalent. At this altitude the air density is about one quarter of that at sea level, that is, when hovering at this level too many ash particles could affect the machine, more so than if the same amount of ash would be in the ground nearby. Until such a new balance of nature has it may still take quite a while.
properties of volcanic ash:
Volcanic ash consists mainly of two different types of aerosol: A little more than 92% of the volume consists of about 0.3-0.5 microns wide sulfur oxide and the other just under 8% by volume, 10 -12 microns large quartz particles, which almost compensates for the mass ratio.
The substantial amount of aerosols is carried by the air at around 500 hPa, which is about an altitude of 5,000 m equivalent. There is a detectable concentration for the human senses, ie one where the ash can see and smell. Furthermore, the concentration decreases continuously with increasing altitude, but remains because of the low air pressure at 10,000 m relevant for flying as before.
The spread of the ash cloud is mainly influenced by the winds and is therefore difficult to describe using a mathematical model. When could totally calm to describe the distribution of the aerosols with an e-curve proportional to the horizontal distance of a constant of nature, which can be used in physics at best a degressive ongoing discharge rate based on a described by developing potential. As the winch control but the movement of the ash cloud, the concentration remains a much longer period at a relatively high level because the mass is not scattered, but is channeled.
(an animation of the model, Dr. B. Neininger, atmospheric physicist, professor at the ZHAW)
question: Why have European transport ministers blocked all air traffic? Answer: Did this for two reasons: to know one hand, many of them only insufficiently with atmospheric physics, which is why they, the accurate propagation model is not known, the channeled Forttreibung of the aerosols, the property brings with it to that instead of the entire airspace block, local restrictions entirely would be sufficient. The second reason may be political: The United Kingdom was the contamination affected than other regions. Blocking almost exclusively on the UK and other regions would give the small British air transport an international market disadvantage. For this reason, the thesis has been preferred in Europe one had the best air traffic . Paralyze
current weather in Iceland:
http://en.vedur.is/about-imo/news/2010/nr/1879
latest info:
http: / / www.sueddeutsche.de/politik/760/508899/text/
