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Lightning storms triggered by exhaust from cargo ships
Posted on 9/21/17 at 8:56 pm
Posted on 9/21/17 at 8:56 pm
Practical example where humans clearly alter the climate
quote:
When Joel Thornton at the University of Washington in Seattle and his colleagues looked at records of lightning strikes between 2005 and 2016 from the World Wide Lightning Location Network, they noticed there were significantly more strikes in certain regions of the east Indian Ocean and the South China Sea, compared with the surrounding areas. Unusually, they occurred along two straight lines in the open ocean, which coincided with two of the busiest shipping lanes in the world. Along these paths there were twice as many lightning strikes as in nearby areas.
“We were quite sure the ships had to be involved,” says Thornton. But they still had to eliminate other factors that influence storm intensity, such as wind speeds and temperatures.
Once these had been ruled out, the team concluded that aerosols from the ships’ engine exhausts were the culprit. Aerosol particles act as seeds, around which water vapour condenses into cloud droplets. In clean air there aren’t many seeds, so the cloud drops quickly grow and fall as rain.
But when there are a lot of seeds, like over busy shipping routes, a greater number of small cloud drops form. Since these are light, they rise up high into the atmosphere and freeze, creating clouds rich in ice.
It is this that leads to more intense thunderstorms: lightning only occurs if clouds are electrically charged, and this only happens if there are lots of ice crystals.
A key giveaway that aerosols were behind the effect was that the lightning was most pronounced at times of the year when powerful atmospheric convection currents form that can carry the aerosol particles high into the sky (Geophysical Research Letters, doi.org/cc7b).
Although lightning activity is higher over the shipping lanes, the amount of rainfall is no different to nearby regions.
LINK /
Posted on 9/21/17 at 8:58 pm to bmy
Why the lol emoticon? It's usually to indicate something was funny.
Ban shipping?
See. Globalism is awful for the environment.
Ban shipping?
See. Globalism is awful for the environment.
This post was edited on 9/21/17 at 9:00 pm
Posted on 9/21/17 at 9:02 pm to roadGator
quote:
See. Globalism is awful for the environment.
You just mindfricked him.
Posted on 9/21/17 at 9:02 pm to bmy
quote:
Although lightning activity is higher over the shipping lanes, the amount of rainfall is no different to nearby regions.
Posted on 9/21/17 at 9:06 pm to bmy
When volcanoes erupt, sometimes lightning storms pop up in the ash clouds.
This is a practical example where mother nature clearly alters the climate.
This is a practical example where mother nature clearly alters the climate.
This post was edited on 9/21/17 at 9:07 pm
Posted on 9/21/17 at 9:09 pm to beerJeep
quote:
When volcanoes erupt, sometimes lightning storms pop up in the ash clouds.
This is a practical example where mother nature clearly alters the climate.
Yes... so?
Posted on 9/21/17 at 9:10 pm to roadGator
quote:
See. Globalism is awful for the environment
This is 100% true.
Posted on 9/21/17 at 9:10 pm to bmy
quote:
Although lightning activity is higher over the shipping lanes, the amount of rainfall is no different to nearby regions.
or maybe the large metal ships with propellers creating friction and static electricity act as lightning rods...
nah....had to be some other insane scenario which is much more complicated
Posted on 9/21/17 at 9:10 pm to bmy
Ditto, mon frere.
Yes.... So?
quote:
Although lightning activity is higher over the shipping lanes, the amount of rainfall is no different to nearby regions.
Yes.... So?
This post was edited on 9/21/17 at 9:11 pm
Posted on 9/21/17 at 9:11 pm to umop_apisdn
quote:
Although lightning activity is higher over the shipping lanes, the amount of rainfall is no different to nearby regions.
And?
Posted on 9/21/17 at 9:12 pm to bmy
Lightning isn't "the climate"
That's literally just a larger version of you rubbing your furry costume then touching a door knob and getting shocked.
That's literally just a larger version of you rubbing your furry costume then touching a door knob and getting shocked.
Posted on 9/21/17 at 9:23 pm to roadGator
quote:
Why the lol emoticon? It's usually to indicate something was funny.
Posted on 9/21/17 at 9:27 pm to JuiceTerry
You noticed the poor usage of too.
Posted on 9/21/17 at 9:31 pm to SundayFunday
quote:
Lightning isn't "the climate"
That's literally just a larger version of you rubbing your furry costume then touching a door knob and getting shocked
... no
Posted on 9/21/17 at 9:34 pm to CptBengal
quote:
or maybe the large metal ships with propellers creating friction and static electricity act as lightning rods...
nah....had to be some other insane scenario which is much more complicated
Ice crystals forming around aerosol particles is hardly an insane scenario
This post was edited on 9/21/17 at 9:36 pm
Posted on 9/21/17 at 9:40 pm to bmy
So, It had nothing to do,with lightning naturally striking the highest thing around?
Pretty sure that would be the exhaust,or mast of a ship at sea. What the hell else is it going to strike?
Pretty sure that would be the exhaust,or mast of a ship at sea. What the hell else is it going to strike?
Posted on 9/21/17 at 9:46 pm to bmy
I do have a question. How did this man made lightening alter the CLIMATE?
Posted on 9/21/17 at 9:47 pm to bmy
quote:
Ice crystals forming around aerosol particles is hardly an insane scenario
so you're also telling me there are no winds here?
that these updrafts and ice crystal formation are immune from the global wind patterns in the upper atmosphere? They form and stay DIRECTLY ABOVE the shipping lanes and dont move?
Seriously, are you retarded?
Posted on 9/21/17 at 9:56 pm to CptBengal
quote:
so you're also telling me there are no winds here?
that these updrafts and ice crystal formation are immune from the global wind patterns in the upper atmosphere? They form and stay DIRECTLY ABOVE the shipping lanes and dont move?
Seriously, are you retarded?
You disagree with the researchers conclusion?
"A key giveaway that aerosols were behind the effect was that the lightning was most pronounced at times of the year when powerful atmospheric convection currents form that can carry the aerosol particles high into the sky (Geophysical Research Letters, doi.org/cc7b)."
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