Earth Science Weekly Newsletter - Wednesday, July 29, 2015

Earth Science newsletter

Top new questions this week: Is the magma in one volcano different from the magma in every other volcano? First off, a confession: I'm asking this question because of The Lord of the Rings. If you're not aware already, in the story, a magical ring can only be destroyed in a specific volcano. The reason ... geology volcanology geochemistry   asked by Wad Cheber 12 votes answered by Fred 14 votes How far away can you see a thunderstorm? At 9:30 PM on July 13, 2015, I was looking due south from Oshkosh, WI. I saw very clearly a large storm with 1-2 lightning strikes per second. I could see cloud-to-cloud lightning traces, as well as ... meteorology thunderstorm   asked by Christian Long 8 votes answered by BillOer 5 votes How do long rivers exist? I was recently on a long-haul flight over Siberia and it struck me as rather remarkable that something like the Lena River could exist. It seems very surprising that there's a route from some random ... hydrology rivers   asked by David Richerby 7 votes answered by Tbbe 7 votes How to read NOAA/NASA GOES satellite data? I requested satellite image data (GVAR_IMG) for a project that I am working on from the GOES satellite, but I don't know what format it's in or how to read it. When I open it with a text editor it is ... data-formats   asked by scottlittle 6 votes answered by scottlittle 1 vote When does the Northern Hemisphere reach minimum land area covered by solid H2O? What's the average day of the year when the fewest square miles of the hemisphere's land is covered by snow or ice or transitional forms like slush? Not counting anything below ground like permafrost ... cryosphere   asked by user3224 6 votes answered by userLTK 2 votes Is there a way to tell whether land is cleared from forest, or naturally bare? In Scotland, the Caledonian Forest has been cut down by humans. According to an unsourced Wikipedia article the tree line in Scotland is at 500 metre (it does not indicate the tree line elevation ... forest deforestation   asked by gerrit 5 votes answered by Fred 2 votes What is the evidence it is feasible to reverse ocean acidification by adding large quantities of a base (bicarb soda)? A commenter made the following reflection: Ocean acidification is different than sea level rise and global warming, however. With ocean acidification, we're making an excursion unlike anything the ... ocean carbon-cycle carbon   asked by hawkeye 4 votes answered by Fred 5 votes Greatest hits from previous weeks: Why deep ocean didn't freeze during snowball Earth? I know that at least twice in its history Earth was totally frozen. I also know that the last time it happened there were already life on Earth, and it survived. In deep water, under the ice, which ... ocean earth-history paleoclimatology sea-ice   asked by amorfis 14 votes answered by stali 14 votes Why was the initial theory of plate tectonics so controversial? I have been set the task of researching plate tectonics, specifically: "Why was its discovery so important in its time and controversial?" I do not need a long answer, although more detail is always ... plate-tectonics   asked by Bob Eret 20 votes answered by Fred 20 votes Can you answer these? What kind of rock is this? What kind of rock is this? It was found in Threemilestone, near Truro in Cornwall, UK. The rock has a hardness of over 5.5, as a knife doesn't scratch most parts of it. It is 10cm across the top, ... geology rocks identification-request   asked by Minersackbot 3 votes Available Matlab code to design Seismic Colored Inversion Operator? I want to apply seismic colored inversion technique to my datasets. Is there a Matlab code available that I can easily use? Are there any other recommended codes to apply seismic colored inversion? geophysics inversion seismic matlab   asked by Satya 3 votes What are the impacts of pollutants from North America and elsewhere on Arctic wildlife? What are the impacts of pollutants from North America and elsewhere on Arctic wildlife? oceanography human-influence pollution arctic   asked by Joe Shmoe 2 votes

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