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Old 13-03-2020, 15:15   #1
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Faster winds and faster currents

Seems like everythings going faster now adays.


https://www.passagemaker.com/trawler...ts-speeding-up


TLDR; currents are on average 15% faster than in the 90's driven by faster winds, driven by warming climate.


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Old 13-03-2020, 16:08   #2
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Re: Faster winds and faster currents

Except those things that are moving slower ...


Slow-Motion Ocean: Atlantic’s Circulation Is Weakest in 1,600 Years
If hemisphere-spanning currents are slowing, greater flooding and extreme weather could be at hand.
https://getpocket.com/explore/item/s...in-1-600-years

https://oceanbites.org/circulation-r...orth-atlantic/




What Would Happen if Earth Started to Spin Faster?
Even a 1 mph speed boost would make things pretty weird.
If Earth’s rotation picked up slowly, it would carry the atmosphere with it—and we wouldn’t necessarily notice a big difference in the day-to-day winds and weather patterns. “Temperature difference is still going to be the main driver of winds,” says Odenwald. However, extreme weather could become more destructive. “Hurricanes will spin faster,” he says, “and there will be more energy in them.”
https://getpocket.com/explore/item/w...=pocket-newtab
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Old 13-03-2020, 19:19   #3
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Re: Faster winds and faster currents

Ah yes, global warming. It causes everything including diametrically opposing effects simultaneously


https://cosmosmagazine.com/climate/t...s-slowing-down

https://www.climatecentral.org/galle...urrent-slowing


https://insideclimatenews.org/news/0...ou-should-care
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Old 13-03-2020, 20:43   #4
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Re: Faster winds and faster currents

Everybody KNOWS that global warming will stop the gulf stream Al Gore says so...

A partial list of all the things that have been claimed as being caused by global warming (with links...)

And it includes my ALL TIME FAVORITE
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Old 14-03-2020, 00:20   #5
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Re: Faster winds and faster currents

Quote:
Originally Posted by billknny View Post
And it includes my ALL TIME FAVORITE
Ah, the flim-flam man!


Has he ever got any prediction right?
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Old 14-03-2020, 00:35   #6
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Re: Faster winds and faster currents

Well it has certainly been horrendously wet and windy winter so far on this side of the pond, so yes it must be climate change
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Old 14-03-2020, 08:29   #7
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Re: Faster winds and faster currents

Commenting on global warming based on a feeling about the season from a few places is like saying people a driving more because it seams to take longer to do your morning commute. Global temp are monitored world wide and averaged over several years. Even theen it has taken many years to establish that the results are not due to 'normal' cyclic varyations. The detail of the effects are monitored the same way. Trying to attribute the intensity to any single weather event to global warming is not possible and thereore is not valid evidence either way.
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Old 14-03-2020, 08:58   #8
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Re: Faster winds and faster currents

Quote:
Originally Posted by roland stockham View Post
Global temp are monitored world wide and averaged over several years. Even theen it has taken many years to establish that the results are not due to 'normal' cyclic varyations.
There are a few key things here...

"...monitored over several years" - NOT several millennia. For example, I don't recall reading any "global hysteria" stating that several thousand years ago the earth's sea levels were much higher than they are today.

"...not due to 'normal' cyclic varyations [sic]" - what we consider normal variations are a snapshot from a very very brief period of earth history.

The earth is an amazing planet that is alive and in constant flux.
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Old 14-03-2020, 09:07   #9
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Re: Faster winds and faster currents

Quote:
Originally Posted by disputin View Post
Seems like everythings going faster now adays.


https://www.passagemaker.com/trawler...ts-speeding-up


TLDR; currents are on average 15% faster than in the 90's driven by faster winds, driven by warming climate.


Sean
Happy to have more wind during sailing season in Long Island sound.
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Old 14-03-2020, 09:12   #10
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Re: Faster winds and faster currents

I don't know about global warming and such but seeing the weather these past few years I can certainly see a change. I am a skier too but we only got 1 or 2 days of snow this winter, I can go further north or west but that's not always practical.
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Old 14-03-2020, 10:19   #11
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Re: Faster winds and faster currents

Well, eh, it depends on where you are.


In the trades (Atlantic trades) the currents seem slower and the winds seem a bit less now than what they were in the period.


I have measured wind drift in the trades in 2004, 2012 and 2017. On none of the occasions the speed matched what you read from the pilot charts. In fact, we experienced maybe only 50% of the averages on most days.



So it may be speeding up somewhere, slowing down somewhere else.


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Old 14-03-2020, 11:21   #12
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Re: Faster winds and faster currents

Quote:
Originally Posted by StuM View Post
Ah yes, global warming. It causes everything including diametrically opposing effects simultaneously...
The question is not, whether climate change caused this, or that event.
Rather, one should ask whether climate change made this, or that event, more (or less) likely to occur.
Or, whether it (likely) made the event more (or less) intense.
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Old 14-03-2020, 13:29   #13
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Re: Faster winds and faster currents

Discovery 15797;3094369 - There are a few key things here...

"...monitored over several years" - NOT several millennia. For example, I don't recall reading any "global hysteria" stating that several thousand years ago the earth's sea levels were much higher than they are today.


Monitored over several years means taking the same readings at the sae places the using running averages to come up with statistically significant figures for the current rate of change.


"...not due to 'normal' cyclic varyations [sic]" - what we consider normal variations are a snapshot from a very very brief period of earth history.



I agree. Mans history on earth is, geologically speaking, brief and recent. We have direct recordings going back maybe 5000yrs (China, middle east and India) from observations of earlier civilizations. Archeological evidence of, for example the Iron Age mini glaciation go back further but after that we can still get accurate climate data from things like ice cores and rock sample. I suggest that we have a good understanding of climate variations from the Pliocene to present.
'Normal, variation does not mean the last hundred years but included things like the variation in the suns output, glaciation etc.


The earth is an amazing planet that is alive and in constant flux.
Absolutely and the concern is not that the earth will not survive. It has survived much greater changes and life remains. The concern is that the rate of change will be very challenging for all species. We are already in to the 5 mass extinction phase and unless we plan to follow the dinosaurs we need to slow the change to something mammals can adapt to. Rates of change in the geological record such as the onset of glacial periods are orders of magnitude slower. As an example the rise of sea level you refer to happened over a few thousand years not 50-100
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Old 14-03-2020, 14:26   #14
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Re: Faster winds and faster currents

I paid less on my heating bill this year, this is proof there is global warming. Of course my wife told me that I have evolved since she has met me.
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Old 14-03-2020, 15:13   #15
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Re: Faster winds and faster currents

Also, there is a cyclic reduction and then increase in the rate of earth's rotation which has been linked to earthquake frequency:

https://www.forbes.com/sites/trevornace/2017/11/20/earths-rotation-is-mysteriously-slowing-down-experts-predict-uptick-in-2018-earthquakes/#3e9661cb6f24



Must have an effect on ocean currents as well.
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