Ocean News

Discussion in 'All Things Boats & Boating' started by ImaginaryNumber, Oct 8, 2015.

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  1. Dejay
    Joined: Mar 2018
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    Dejay Senior Newbie

    Is the CO2 effect saturated? https://skepticalscience.com/saturated-co2-effect.htm

    But yeah, it is like playing chess with a pigeon. I wanted to ask in this thread about possible ramifications of climate change for life on the water, not get derailed by your nonsense.

    Yobarnacle you seem to be here to convince people that AGW isn't real or to disrupt talking about it or censor through noise. Climate change is a serious topic to anyone who designs or build boats, naval architects or someone who wants to cruise on the oceans. There is a long tail of uncertainty in the climate models.

    I assume you'll just continue to troll and gloat and arrogantly post your genocidal propaganda. If you were an overt racist you'd get banned from this forum, but I guess posting lies that will lead to chaos, war and genocide is still not seen as a disqualifying criterium.
     
  2. Yobarnacle
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    Yobarnacle Senior Member holding true course

    AGW is highly politicized.
    Which side wants the government to control everything? Which side wants to shut up the opposition? Which side is anti individual freedom to choose for your self? Which side is lying to grab political power? It's obvious.

    This thread was created to promote AGW. I have offered an alternative argument since it began, not as a troll, but honest debate. I understand you only want your beliefs published.
     
  3. Boat Design Net Moderator
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    Boat Design Net Moderator Moderator

    To reiterate a previous request again: this is a boating site. Let's please keep posts here about ocean news... that is, new information or data about the oceans.
    Please take political or religious posts, or posts that don't have some new ocean news (data) to some other site. Thanks.
     
  4. Yobarnacle
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    Yobarnacle Senior Member holding true course

  5. Yobarnacle
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    Location: Mexico, Florida

    Yobarnacle Senior Member holding true course

  6. ImaginaryNumber
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    ImaginaryNumber Imaginary Member

    Extreme waves set to get bigger and more frequent due to climate change

    A warming planet will cause stronger storm winds triggering larger and more frequent extreme waves over the next 80 years, with largest increases shown in the Southern Ocean, according to new research.

    The study found that if global emissions are not curbed there will be an increase of up to 10 percent in the frequency and magnitude of extreme waves in extensive ocean regions.

    In contrast, researchers found there would be a significantly lower increase where effective steps are taken to reduce emissions and dependence on fossil fuels. In both scenarios, the largest increase in magnitude and frequency of extreme waves is in the Southern Ocean.
     
  7. Yobarnacle
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    Yobarnacle Senior Member holding true course

    Now you're in MY science expertise realm. Don't you mean EXPECTED to get bigger? Have Bigger seas been reported already? Not a done deal yet!

    Highest Reported. American Practical Navigator(1).png
    Waves.  American Practical Navigator.png

    wave in shoaling water.  American Practical Navigator.png

    Tsunamis are barely noticeable as they pass under a vessel at sea,. perhaps only inches high, but very fast. Achieve enormous height and force when encountering shore line, mainly because their high speed is kinetic energy that must convert to a different mode of force because of obstruction.

    In observation, seas appear twice as high as they really are. The trough is as far below sealevel as the crest towers above sealevel. The Edmond Fitzgerald sank at Six fathom shoal in White Fish bay, Lake Superior, in twenty five foot seas. The ship was loaded draft of twenty six feet six inches. The maximum alowed draft to pass over the sill into Soo locks in St Mary's River.

    Subtract twelve and half feet ( half of 25 ft sea) from thirty six feet (6 fathoms shoal), and it's obvious you don't have enough depth to pass a 26'6" deep vessel over it without ripping out the bottom.

    The US Coast Guard refused before the loss of the Fitzgerald, despite decades of clamor from professional mariners, and today continually refuses to mark Six Fathom Shoal with a buoy, as a hazard to navigation. Apparently obtusely ignoring the concept troughs of seas are below the normal lakelevel

    Six Fathom Shoal is marked now by a privately owned and maintained buoy.
    The Edmund Fitzgerald Memorial buoy!

    The cause of the sinking is well known to Lake Pilots and Masters. The government claims to be mystified.

    Coast Guard crew makes special stop over Edmund Fitzgerald wreck site in Lake Superior https://www.mlive.com/news/grand-rapids/2016/10/coast_guard_crew_makes_special.html

    PS. Besides Ocean Masters , and all the Towing Masters licenses, (oceans, inland, western rivers),I hold license as First Class Pilot Any Gross Tons for entire Great Lakes system (5v lakes, three rivers, and Welland canal) and was on lake Superior in 1975 in the same storm when Fitgerald was lost..
     
    Last edited: Jun 12, 2020
  8. Yobarnacle
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    Yobarnacle Senior Member holding true course

    There are nomographs in Bowditch, The American Practical Navigator for estimating maximum sea height over defined fetch and duration of wind velocity. Nearly useless in any practical sense. Air temperature has an enormous affect on what wind speed produces what size sea, and wind over current is another major factor. Is there a limit how high a wave can be? Around a hundred foot, waves lose their form, are called rogue waves, and become chaotic giant lumps of water, and very dangerous. North Atlantic.jpeg
     
    Last edited: Jun 12, 2020
  9. Dejay
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    Dejay Senior Newbie

    At first I misread this as "extreme heat wave" haha. I'm somewhat confused about what they are talking about though. Do they mean abnormal rogue waves with extreme waves? Or just "normal" wave conditions at the extreme end?

    I assume the latter since otherwise this doesn't make sense. 10% increase is significant but that is for 2100.
     
  10. Yobarnacle
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    Yobarnacle Senior Member holding true course

  11. Yobarnacle
    Joined: Nov 2011
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    Location: Mexico, Florida

    Yobarnacle Senior Member holding true course

  12. Yobarnacle
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    Yobarnacle Senior Member holding true course

    Last edited: Jun 13, 2020
  13. ImaginaryNumber
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    ImaginaryNumber Imaginary Member

  14. Yobarnacle
    Joined: Nov 2011
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    Yobarnacle Senior Member holding true course

    Alarmist speculations referencing a pre-industrial level as the bucolic perfect and preferred climate average global temperature. Which pre-industrial temperature is the actual reference point? The little ice age?
    If the reference is DELIBERATELY vague, that would definitely be alarming!

    preindustrial levels.jpeg
     
    Last edited: Jun 14, 2020

  15. ImaginaryNumber
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    ImaginaryNumber Imaginary Member

    You could have answered the question for yourself had you really wanted to.

    You didn't provide an attribution for your chart. It looks like something from a denier website, not from a scientific study.

    Frequently Asked Questions
    "This IPCC Special Report on Global Warming of 1.5°C uses the reference period 1850–1900 to represent pre-industrial temperature. This is the earliest period with near-global observations and is the reference period used as an approximation of pre-industrial temperatures in the IPCC Fifth Assessment Report."​


    Climate Change: Atmospheric Carbon Dioxide | NOAA
    "Based on air bubbles trapped in mile-thick ice cores (and other paleoclimate evidence), we know that during the ice age cycles of the past million years or so, carbon dioxide never exceeded 300 ppm. Before the Industrial Revolution started in the mid-1700s, the global average amount of carbon dioxide was about 280 ppm."​

    [​IMG]

    As of June 13, 2020, at the Mauna Loa observatory, atmospheric CO2 levels were 416 ppm.
    Daily CO2 https://www.co2.earth/daily-co2
     
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