Claim: ship exhaust makes oceanic thunderstorms more intense

Posted: September 8, 2017 by oldbrew in atmosphere, Ocean dynamics, research, weather
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The researchers say ship exhaust can alter thunderstorm intensity. They seem to have ignored the fact that ships on the open seas have always been a natural target for lightning.

Thunderstorms directly above two of the world’s busiest shipping lanes are significantly more powerful than storms in areas of the ocean where ships don’t travel, according to new research reported at Phys.org.

A new study mapping lightning around the globe finds lightning strokes occur nearly twice as often directly above heavily-trafficked shipping lanes in the Indian Ocean and the South China Sea than they do in areas of the ocean adjacent to shipping lanes that have similar climates.


The difference in lightning activity can’t be explained by changes in the weather, according to the study’s authors, who conclude that aerosol particles emitted in ship exhaust are changing how storm clouds form over the ocean.The new study is the first to show ship exhaust can alter thunderstorm intensity.

The researchers conclude that particles from ship exhaust make cloud droplets smaller, lifting them higher in the atmosphere. This creates more ice particles and leads to more lightning.

Continued here.
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Franklin’s Thunder Rod

Comments
  1. Tim Hammond says:

    “All we had to do was make a map of where the lightning was enhanced and a map of where the ships are travelling and it was pretty obvious just from the co-location of both of those that the ships were somehow involved in enhancing lightning,” Thornton said.

    …ignoring the first and most important rule of science, that correlation is not causation.

    Because of course lightning is never attracted to great big lumps of metal sticking above a surface.

  2. Bryan says:

    Just guessing, the effect of ships exhaust would contain large amounts of ionized gases.
    This would act just like a lightning conductor.
    A lightning conductor lessens the charge on clouds that cause lightning
    This would also explain why ships regularly get struck with lightning

  3. oldbrew says:

    Bryan – no exhaust effect is needed.

    Grace Dieu was the flagship of King Henry V of England and one of the largest ships of her time. Launched in 1418, she sailed on only one voyage and was subsequently laid up at anchor in the River Hamble. She was burned in 1439 after being struck by a bolt of lightning.

    http://en.wikipedia.org/wiki/Grace_Dieu_(ship)

  4. Curious George says:

    How many of these lightning sensors are based on ships?

    [reply] see http://wwlln.net

  5. ivan says:

    Is this what passes as science now – putting two non related pieces of paper together?

    Did they try using barges with tall metal masts out of the shipping lanes to see what happened – or would that actually require thought on their part? Did they compare their ‘results’ with other parts of the oceans where there are large lumps of metal sticking up? Have offshore wind farms changed where lightning strikes?

    I could go on but why bother, this ‘research’ is only confirmation bias to reduce the amount of FF driven ships and help the return of sail.

  6. Curious George says:

    NASA data are strikingly different – https://earthobservatory.nasa.gov/IOTD/view.php?id=6679

  7. John H. Harmon says:

    The claim is of increased CLOUDS. I would like to see data on clouds.
    Correlations with correlations are seriously not causation.

  8. oldbrew says:

    ‘particles from ship exhaust make cloud droplets smaller, lifting them higher in the atmosphere. This creates more ice particles and leads to more lightning’

    If so, why don’t we see something similar on land due to vehicle exhausts, industrial pollution etc.?

  9. ivan says:

    oldbrew, as I said this is a lead up to the ‘big push’ for sail powered cargo shipping. It appears to be part of the UN push to segment the world into small feudal communities to fit their agenda.

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