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Topics - MrVisible

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I've been seeing stories about the episode of thunderstorm asthma that took place in Melbourne on the 21st. All the articles I've seen attribute the cause to pollen, even though from some of the early stories, a lot of the people affected didn't have hay fever.

This paper found that pollen and fungal spores didn't seem to affect people during thunderstorms, while ozone did.

Thunderstorms bring ozone down to ground level, and the symptoms people describe certainly seem to correlate with ozone exposure.

This has only been happening since 1983, so it seems odd to me that pollen would only recently develop this peculiar capacity to explode during thundertorms.

I was hoping that the weather enthusiasts would care to discuss whether it would be possible for a thunderstorm to increase ozone at ground level to lethal concentrations for at-risk individuals.

*Edited to fix links.

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The rest / Canada military probes mysterious Arctic pinging noise
« on: November 05, 2016, 12:54:42 AM »
Quote
The pinging noise is reported by locals to have reverberated around Fury and Hecla Strait in a remote part of northern Canada.

The Canadian military has investigated a mysterious pinging sound coming from the sea floor in a remote region of the Arctic, officials have told the BBC.

The strange noise is reported by local people to have frightened animals away over the past few months.

Any ideas?

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Permafrost / Question from a newbie
« on: June 26, 2016, 10:14:46 PM »
I was looking at Climate Reanalyzer last night, checking the CO2, and I saw a blue spot over Russia. I went back and found that in the past few days, I can see blue areas of high-CO2 concentration developing over Russia every so often.

If you look at the attached gif, there's one that pops up at 59.93n, 99.47e on June 22, and another that comes up at 56.50n, 156.80e on the 24th. Both spike to over 450ppmv, then dissipate in the wind currents. The later one recurs in the same spot.

Checking the maps for these areas, there's pretty much nothing there.

Could someone please let me know what these are?

https://earth.nullschool.net/#2016/06/22/2230Z/chem/surface/level/anim=off/overlay=co2sc/orthographic=124.75,38.40,708/loc=156.803,56.498
http://imgur.com/2ZxQVJ1

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