Montag, 24. Juni 2024

24.06.2024 - Volcanoes and Eyjafjallajökull & Ash cloud from Iceland etc. by dali48

dali48 and teaching and writing and cycling and photographing near Lake Morper in Erkrath, 8/1983 – 5/2010


07/01/2014 - Volcanoes2 and Eyjafjallajökull etc. by dali48
 
17.04.2010 - Interpretation of dali48
The ash cloud from Iceland: Eyjafjallajökull paralyzes Europe. Strong winds (see global warming, see deforestation etc. - d.48) which are caused by the eruption of the Icelandic volcano, have driven a giant ash cloud over Europe. Normally, the lava flows quietly down from the Eyjafjallajökul. - This time however, water and magma have connected to an explosive mixture. More eruptions are possible. - But danger is there only for aviation... 
It is the first time in the history of European aviation that it was resorted to such drastic measures, - and that after an outbreak which was more moderate by volcano-logical point of view. - Normally, the Eyjafjallajökull, which last erupted in 1821, is among the predictable volcanoes... 
Up to 11 kilometers the ash cloud was expelled, and fine dust particles can even ascend to an altitude of 20 km and fly around the world...  
On a scale from 0 to 8, with the 8 which would stand for a meltdown like the eruption of the volcano beneath Yellowstone, the Eyjafjallajökull gets only a modest 2. - What is so special concerning the eruption, are the strong winds which drive the first approx. 200 x 100 kilometer ash cloud gradually towards east-southeast... 
But it could be that ash dust is lying on cars, like this happened in 1981 after the eruption of volcano Mount St. Helens in the U.S., and was observed in some places in Germany... 
"Extremely for example, was the eruption of Tambora in Sumatra in 1815, which led to a worldwide fall of the temperatures, and caused crop failures," says Geo-scientists Hahne...
In the case of Eyjafjallajökull, however, Icelandic farmers fear that toxic substances such as fluorine of the ash will stay in the ground. - According to a Scandinavian study from 2007, one in four of the Icelanders died of a fluorine poisoning during the eruption of Lakis in 1783... 
Hot steam also brought large amounts of glacial ice to melt, leading to flooding. - Approximately 700 people were evacuated from the immediate risk zone... 
"We should not forget that there were volcanoes before there were humans. - These elemental forces deserve our respect"... 
The ash destroys engines, - see: 1982 over the Indian Ocean, an emergency landing of a Boeing 747-200 of British Airways in Jakarta, and 1989, a Boeing 747 of KLM with similar problems etc... (Rhine Post, 16.04.2010)

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