N_Fiddledog N_Fiddledog:
Caelon Caelon:
Now to move it to that favourite topic 'Climate Change'. With the one in the south pacific and this one in Alaska the increased particulates in the atmosphere will diminish the intensity of the suns rays. In other words it will help cool the atmosphere for the next couple of years or so.
Maybe, but there's more to it. The dust particles land on the ice. This attracts heat, and aids in ice melt.
Another interesting one shedding light on something different was the underwater eruption last week off Tonga. They were measuring massive outlays of underwater heat. This is interesting because the one small section of the antarctic where ice is melting has an underwater volcanic presence which has yet to be satisfactorily measured.
I agree it is more complex. The large particles will fall out very rapidly and relativley close to the volcano. Very fine particles that rise into the stratosphere can stay for months. Sulpher compounds will rise rapidly into the stratosphere and create tiny droplets of sulphuric acid that reflect a great amount of light. Large eruptions can lower global temperatures by a degree or two for a couple of years.
Oceanic changes can last for decades if the affected water mass is large enough. That would make studying the effect of volcanic activity at Tonga and the Antartic an important long term project to help understand the variation in our climate over the millenia.
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