All downhill from here

Discussion in 'Environment' started by Old Rocks, Mar 23, 2011.

  1. Old Rocks
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    Old Rocks Diamond Member

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    Arctic Sea Ice News & Analysis

    March 23, 2011
    Annual maximum ice extent reached
    Arctic sea ice extent appeared to reach its maximum extent for the year on March 7, marking the beginning of the melt season. This year's maximum tied for the lowest in the satellite record. NSIDC will release a detailed analysis of the 2010 to 2011 winter sea ice conditions during the second week of April.

    Figure 1. Arctic sea ice extent on March 7 was 14.64 million square kilometers (5.65 million square miles). The orange line shows the 1979 to 2000 median extent for that day. The black cross indicates the geographic North Pole. Sea Ice Index data. About the data.
    —Credit: National Snow and Ice Data Center

    High-resolution image
    Overview of conditions

    On March 7, 2011, Arctic sea ice likely reached its maximum extent for the year, at 14.64 million square kilometers (5.65 million square miles). The maximum extent was 1.2 million square kilometers (463,000 square miles) below the 1979 to 2000 average of 15.86 million square kilometers (6.12 million square miles), and equal (within 0.1%) to 2006 for the lowest maximum extent in the satellite record.
     
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  2. Chris
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    Chris Gold Member

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    We are melting the polar ice cap.

    I wonder where that will lead.
     
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  3. Oddball
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    Oddball BANNED Supporting Member

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  4. Finnguy
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    Finnguy Social Democrat

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    I think during my lifetime, the ice cap will be gone. Hopefully I can see some of it before it is gone. Hopefully we can change our ways and help restore and lower the world temperature. Our consumer lifestyles have accelerated global warming past the natural ups and downs that normally cause it.
     
  5. westwall
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    westwall USMB Mod Staff Member Gold Supporting Member Supporting Member

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    Oh I doubt that. Seems there is some multi year ice getting pretty damned thick. The Arctic will continue to improve and in the next few years it will be the largest extent ever measured by satellite.....natural and normal.


    “Some of the ice we crossed was really thick multi-year ice that was just too thick to drill through. Our drill goes to four and a half metres and it wasn’t breaking through. In other areas we were able to drop our measuring devices down to a depth of 200 metres below the floating ice.”



    Explorers Reach Ice Base | Catlin Arctic Survey
     
  6. westwall
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    westwall USMB Mod Staff Member Gold Supporting Member Supporting Member

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    Ummmm, no we havn't. The Medieval Warming Period was much warmer and the planet prospered in all areas, flora, fauna, and of course mankind.
     
  7. Old Rocks
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    Old Rocks Diamond Member

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    Has Arctic sea ice returned to normal?

    Currently, websites such as Watts Up With That are using sea ice extent in 2010 to claim Arctic sea ice has returned back to normal. A few days ago, Watts claimed that we had "more ice than any time on this date for the past 8 years". On the contrary, in March 2010, the total Arctic sea ice volume was 20,300 km3 - the lowest March value for total sea ice volume over the 1979-2009 period. Those who claim Arctic sea ice has returned to normal are focussing at the thin shell at the top and neglecting the steadily thinning sea ice below.

    The data here was taken from the University of Washington's Polar Ice Center


    Polar Science Center » Arctic Sea Ice Volume Anomaly
     
  8. Old Rocks
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    Old Rocks Diamond Member

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    That is not what real scientists state. Remember, you posted this site from the Woods Hole Institute. And what a good site it is.


    Image : New Temperature Reconstruction from Indo-Pacific Warm Pool : Woods Hole Oceanographic Institution

    Sea surface temperature reconstructions from the Indo-Pacific Warm Pool. Different colored symbols indicate data from different cores used in the reconstruction. A northern hemisphere temperature reconstruction from Mann et al. (2008) is shown in the black curve. The previously published data is from Newton et al. (2006). Colored lines are the average of the data points. Triangles at the bottom of the figure show where age control exists. The horizontal black line labeled 1997-2007 Mean Annual SST shows the value of the annual average sea surface temperature for the same time period. The Little Ice Age, which occurred around A.D. 1700, was a cool period, but its magnitude was only about 0.5 to 1˚C cooler than modern winter temperatures. Water temperature during the late Medieval Warm Period, between about A.D. 1000 to 1250, was within error of modern annual sea surface temperatures. (Oppo, Rosenthal, Linsley; 2009)
     
  9. Sallow
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    Sallow The Big Bad Wolf. Supporting Member

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    I have a good friend that works at the Woods Hole institute. He's a pretty conservative fellow and he say's the weather is screwed. He sees whats going on up close and personal.

    Oh..and his wife is having twins!:clap2:
     
  10. Trajan
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    Trajan conscientia mille testes

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    I have several good friends that are in a position to 'know' and they say its overwrought and there's not a con. among them...:eusa_whistle:
     

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