Animation: Ice Mass Loss on Greenland, 2003-2011

Discussion in 'Science and Technology' started by Dante, Jun 12, 2012.

  1. Dante
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    Dante On leave Supporting Member

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    Animation: Ice Mass Loss on Greenland, 2003-2011

    What's a conservative, science denier to do? :eusa_whistle:

    follow the link Space Images: Ice Mass Loss on Greenland, 2003-2011 - NASA Jet Propulsion Laboratory and go to Click on the image for the animation which will take you to an animation, or just browse that liberal JPL web site.

     
    Last edited: Jun 12, 2012
  2. Old Rocks
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    Old Rocks Diamond Member

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    Find deeper sand for his head?
     
  3. Dante
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    Dante On leave Supporting Member

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    damn scientists...all leftists with a socialist agenda!
     
  4. JimBowie1958
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    JimBowie1958 Old Fogey

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    Ideology has no role in this, though there is a greater niavete among leftist for any bullshit speculation that tumbles out of the mouth of any generally recognized as a scientist.

    But in this case, the masses of ice in the Northern hemisphere have obviously been melting from their peak during the last Little Ice Age as the planet has warmed since then. Also, the records for Greenlands ice melts ahve been greater in the past, like in the 1930's if I recall correctly.

    That you think photos overe the last ten years when tempeerature increases have generally plateued are all that persuasive, then you are apparently suffering from 'confirmation bias'.

    Confirmation bias - Wikipedia, the free encyclopedia
     
  5. westwall
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    westwall USMB Mod Staff Member Gold Supporting Member Supporting Member

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    Greenlands glacier retreat was greater in the 1930's than it is today. But that would be science and you cultists don't do science. Do you....


    "1930s photos show Greenland glaciers retreating faster than today

    But nobody thought it was a big deal

    By Lewis Page • Get more from this author

    Posted in Science, 2nd June 2012 09:07 GMT

    Free whitepaper – Enabling Datacenter and Cloud Service Management for Mid-Tier Enterprises


    Recently unearthed photographs taken by Danish explorers in the 1930s show glaciers in Greenland retreating faster than they are today, according to researchers.


    We're not worried about rising sea levels. Well, we are in a seaplane.

    The photos in question were taken by the seventh Thule Expedition to Greenland led by Dr Knud Rasmussen in 1932. The explorers were equipped with a seaplane, which they used to take aerial snaps of glaciers along the Arctic island's coasts.

    After the expedition returned the photographs were used to make maps and charts of the area, then placed in archives in Denmark where they lay forgotten for decades. Then, in recent years, international researchers trying to find information on the history of the Greenland glaciers stumbled across them.

    Taken together the pictures show clearly that glaciers in the region were melting even faster in the 1930s than they are today, according to Professor Jason Box, who works at the Byrd Polar Research Center at Ohio State uni."





    1930s photos show Greenland glaciers retreating faster than today ? The Register
     
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  6. Old Rocks
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    Old Rocks Diamond Member

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    Those were land terminating glaciers for the most part. Nowhere near the ice mass of sea terminating glaciers.
     
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  7. Old Rocks
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    Old Rocks Diamond Member

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    Here is another animation concerning the rise of CO2 and how the increasing acidity of the ocean is affecting the saturation level of aragonite.

    Outreach

    Nearly 80% of the increase in CO2 has occured in my lifetime.
     
  8. westwall
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    westwall USMB Mod Staff Member Gold Supporting Member Supporting Member

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    Horse crap. They never bothered to measure it before so we have no idea WHAT it was like before. And as I pointed out in the other link, carbonates are MORE SOLUABLE in colder water than warm which kinda screws with your little fairytale....


    "Counter to the typical increase of mineral solubility with increasing temperature observed for most minerals, many carbonate minerals are more soluble in cold water. For example, the Ksp for calcite at 0 and at 50 is 10-8.02 and 10-8.63, respectively (Garrels and Christ, 1965). These values represent about a four-fold difference in calcite solubility caused by temperature alone. A thorough discussion of the thermodynamic reactions of carbonate minerals solubilities is beyond the scope of this article. A simplified explanation for carbonate minerals being more soluble in cold water is that the dissolution reaction for carbonate minerals is exothermic, which results in higher temperatures favoring the solid phase over dissolved ions. A more detailed discussion for this unusual behavior can be found in Langmuir (1997).



    In addition to an increase in solubility products with decreasing temperature, carbon dioxide is more soluble at lower temperatures, further favoring carbonate mineral dissolution in cooler environments. More carbonic acid is present in cold water at a given partial pressure of carbon dioxide (P ) and carbonic acid concentration is the controlling factor for the solubility of carbonate minerals under natural conditions. Carbon dioxide is obtained from the air or from decomposition of organic matter that releases carbon dioxide which reacts with water to form carbonic acid. These factors combine to form the calcite compensation depth (about 4,500 m) below which calcite dissolves.



    When geothermal waters reach the surface of Earth and precipitate tufa, a calciumcarbonate rock, some reaction must overcome the temperature decrease or these waters would dissolve calcite rather than deposit tufa as the water cools. The required reaction is the loss of CO2 due to lower P pressure at Earth’s surface and subsequent a decrease in the amount of carbonic acid, which controls the amount of dissolved calcite (see Calcite Solubility below)."


    Carbonate Chemistry
     
  9. percysunshine
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    percysunshine Gold Member

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    An animation is a theory in motion. But it is still just a theory, or in some cases, a Mickey Mouse cartoon.
     
  10. Old Rocks
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    Old Rocks Diamond Member

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    Again, you lie, Walleyes. The proxies they have for that give very good information concerning the amount of aragonite in solution for as recent as 1800.

    Yes, as the ocean waters warm, and become more acidic, there will be less aragonite in solution. Which is what the site demonstrates. Demonstrates with historic data, and with reasonable projections from present increases in heat and acidity. And, as has been the case with the past predictions, probably have underestimated the speed with which this will occur.
     

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