The bottom of Pacific Ocean is getting colder

The bottom of Pacific Ocean is getting colder

Scientists say the cooling “is likely due to the Little Ice Age.”_______

Cold waters that sank in polar regions hundreds of years ago during the Little Ice Age are – supposedly – still impacting deep Pacific Ocean temperature. Photo by: Larry Madin, Woods Hole Oceanographic Institution

“As a significant part of the ocean responds to the rising temperatures of the today’s world, the deep, dark waters at the base of the Pacific Ocean seem, by all accounts, to be doing the exact inverse,” says this article on  (link below).

But why are the deepest parts of the Pacific Ocean getting colder?

A pair of scientists – one from the Woods Hole Oceanographic Institution, the other Harvard University, built a computer model meant to mimic the circulation of water in the Pacific Ocean over the past century and a half.

The model showed that the Pacific Ocean cooled over the course of the 20th century at depths of 1.8 to 2.6 km (1.1 to 1.6 miles).

How could the scientists explain such cooling in a world that is supposedly warming?

They decided that “cold waters that sank in polar regions hundreds of years ago during the Little Ice Age must still be impacting deep Pacific Ocean temperature trends.”

So there you have it. Ocean warming, we’ve been told, is caused by humans, but ocean cooling “is likely due to the Little Ice Age.”

The study, entitled “The Little Ice Age and 20th Century and deep Pacific Cooling,” was published in Science magazine on 4 Jan 2019.

Thanks to David Hartley and Jay Hope for these links

“Sadly, they (the scientists) immediately ruin an interesting paper by ensuring they mention AGW,” says David. “They can see the natural cycles but chuck the elephant in the room before the discussion begins.”

20 thoughts on “The bottom of Pacific Ocean is getting colder”

  1. Quote:
    A pair of scientists – one from the Woods Hole Oceanographic Institution, the other Harvard University, built a computer model meant to mimic the circulation of water in the Pacific Ocean over the past century and a half.

    I would suggest that this circulation current is part of the returning leg of the Overturning current carrying very cold CO2 saturated water into the base of the Pacific water Colum displacing less cold water upwards towards the surface which then CO2 outgasses as it rises.
    The Woods Hole Oceanographic Institution is a fully payed up member of the AGW community; they are not going to put their AGW funding at risk by not mentioning Human induced climate change.
    I would suggest that this model extends to the two or three entry point for cold Polar water returning into the Pacific, and they are well aware of the capacity of the current to continue to cool the Pacific for another 400 years or more, as well as to continue the excess CO2 outgassing until 2420 at least.
    Woodshole is well aware of how much CO2 is sequestrated within the deep ocean returning leg of the current and where the less CO2 saturated Arctic/Atlantic water from the Solar warm period 1945 to 2008 warm period has reached within the Central Atlantic region on its return leg.
    It is also possible that the trigger for a Glaciation event is a 700 year lagging Pacific cooling period causes by a previous cyclic period North Atlantic LIA , which can be seen in the C14 proxy records reoccurring at a fixed time periods throughout geological history

  2. “Climate varies across all timescales,” adds Peter Huybers, Professor of Earth and Planetary Sciences at Harvard University and co-author of the paper. “Some regional warming and cooling patterns, like the Little Ice Age and the Medieval Warm Period, are well known.
    But I thought the Medieval Warm Period was in dispute by climate scientists. If not, what caused the MWP and the LIA?
    The AGW theory is one built on sand.
    “The rain came down, the floods came, and the winds blew, and beat on that house; and it didn’t fall, for it was founded on the rock. Everyone who hears these words of mine, and doesn’t do them will be like a foolish man, who built his house on the sand.” Matthew 7:24–27

    • Mann disputed the Medieval Warm Period as a regional effect as it caused him a serious problems with his hockey stick not having the alarmist effect he wanted, so he changed the goal posts by ignoring it. As have many other AGW modellers much the same, as they ignore the Sun as an agent for massive change in the climate by saying TSI only varies by 1% over the solar cycle. Which it does, over the observed warm period cycles 17, 18 and 19 and 21, 22 and 23.
      It varied significantly during SC20 the cool sun period and since the start of SC24 and the start of this modern Grand Solar Minimum and also during the Gleissberg period 1880 to 1945 and during the one which will follow this GSM.
      You are right: AGW is built on unstable science, but as with all good propaganda, say the lie often and the sheeple will believe that their lamp chops are off the menu.

    • The alarmists like to claim that the Medieval Warm Period was a northern hemisphere only event – not to be confused with climate crook Michael Mann who just made it disappear completely from his Hookey Stick graph. Most of the land mass is north of the equator and written records are more common in Europe and some other northern places. However, there have been lots of papers showing evidence that the MWP was global. The MWP is very inconvenient to the alarmists and is a good question subject to hit them with.

  3. This is a practice done to avoid Gorequemada and the Inquisition. You cannot outwardly challenge the true religion. If one discussed the Little Ice Age which the church considers to be heretical, they must do something to profess belief in the true religion.

  4. Scientists say the cooling “is likely due to the Little Ice Age.”
    Or any other thing that science is ignorant about and some loudmouthed “scientists” can pontificate their ignorance and their lack of understanding with all the biased computer modeled whizzbangery they can muster.
    This is NOT science!
    It’s an excuse and begging letter for more funding.
    Deep oceans, warming or cooling?
    Show me the verified evidence, not some unverified supposition from a computer model!

  5. Nonsense. – fake news, the ice age is irrelevant.
    Obviously ice melting on land on Iceland Greenland and Antarctica causes melt water at 0 degrees to flow into the oceans and sink to the bottom. Global warming is the cause.

  6. By the same logic, maybe global warming is being caused just by warm waters of the Medieval Warm Period resurfacing. =)

  7. At least the article title is wrong.

    Water is most dense @ 3.98 C / 39.16 F

    Therefor that IS the temperature at the bottom of
    EVERY ocean.

    • You might find that number incorrect.

      Deep Ocean Warming in Degrees C
      Bob Tisdale / 10 hours ago January 23, 2019

      In recent weeks and months, there’s been a run of papers—with typical mainstream media misinforming embellishments—about improved estimates of the warming of the oceans…and blog posts about them. One thing common to the papers is the use of the metric zettajoules for ocean heat content—a metric that’s meaningless to most people.

      The former National Oceanographic Data Center (NODC) portion of what is now contained under the umbrella of the National Centers for Environmental Information (NCEI) produces a dataset of depth-averaged temperatures for depths of 0-2000 meters, upon which, in part, their Ocean Heat Content data are based, and it’s presented in degrees C. To put deep-ocean warming in perspective, I’m presenting that data in this post.

      Sadly, with the government shutdown, the NCEI website is offline, so I can’t provide you with links to additional information about the dataset. That is, we can’t confirm during the shutdown that this dataset is made up primarily of data from ARGO Floats. I did, however, present this same dataset and discuss its foundation in an October 2014 post There is a Wide Range in the Argo-Era Warming (And Cooling) Rates of the Oceans to Depths of 2000 Meters. The WattsUpWithThat cross post is here. Of course, today, the links to the NODC website there will bring you to reminders of the government shutdown.

      A couple of comments are interesting:

      Nick Schroeder
      January 23, 2019 at 6:33 pm
      The average depth of the oceans is about 4,000 meters.
      So, what’s happening in the bottom half?
      John F. Hultquist
      January 23, 2019 at 8:05 pm

      The bottom half is cold and changes slowly.
      In the deepest parts, water temperature ranges from 34-39 degrees F (1-4 degrees C).
      In a general sense, the most dense water sinks, and where surface waters cool more it stays near the surface, where ice forms. Because ocean water is not pure H2O, and most published tables assume that is what is of interest, one cannot take a number from a table and apply it to ocean water.

      Bob Weber
      January 23, 2019 at 7:47 pm

      Based on the values of the linear trend line, the temperature of the global oceans for depths of 0-2000 meters has risen about 0.065 deg C since 2005.

      0.065 deg C for 0-2000 meters would be very amazing accuracy considering for example the uncertainty in HadSST3, which is 0.03 deg C for only the sea surface.

      It appears as though the combined effects of The Blob and the 2014/15/16 El Niño put an end to the cooling taking place in the Eastern North Pacific from 2005 through 2013.

      Both events were solar forced via TSI when SC24 TSI was higher than my solar-ocean warming threshold, until TSI fell below the warming threshold in 2016, ie there was enough solar energy for net warming, until there wasn’t, and things turned the other way.

      Bob your last 3 figures 11-13 are especially revealing, nice job.

  8. When the Ice melts in my glass of 15 Year Old Scotch, the Ice melts due to AGW , a reaction of me melting the ICE by putting it in the glass. Subsequent observation reveals that the Scotch at the bottom of the Glass is colder than the Scotch at the top of the Glass. Light Cigar [CO2 control source] rinse repeat. LOL. In similar fashion what do you think happens when Ice bergs break off and float out into the Ocean? Al Gore even admitted that type of action is seen at the peak of Warming cycles just prior to Ice Ages. Problem is he gives these things 0.05% time and consideration when touting AGW theory. Ice Age Theory [reality] doesn’t pay well LOL.

  9. Oh About those models? Always build your models with an X Factor[ the calibration method to tune your model to predict and algin with the empirical data], for accuracy. Now what would you like your model to say? Use the X Factor. [giggles].

  10. And The Little ice age is coming back. As well as overhead and underwater volcanic activity growing rapidly across the planet. Just as Robert says in his book

    There are vents in the ocean bottoms ,but I suppose the Pacific is so vast that their heat output does not affect the temp.
    However, not long ago on THIS SITE, we read about hot volcanic vents causing heating of the sea in Arctic areas.

    • Robert is very much a beleaver in ocean warming from underwater valcanos you would get no argurement about that from him.

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