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Re: the jet?

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  • Pawnfart
    The jet certainly moves around. The question is WHY does it move around? If you have a chance and some time, I recommend starting with Lindzen s iris
    Message 1 of 702 , Dec 12, 2001
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      The jet certainly moves around. The question is
      WHY does it move around? If you have a chance and
      some time, I recommend starting with Lindzen's 'iris'
      paper.The recent MIT's Prof. R. S. Lindzen et al AMS
      article: "Does the Earth Have an Adaptive Infrared Iris?"
      is available online. Lindzen's paper on iris is
      available at
      <a href=http://ams.allenpress.com/amsonline/?request=get-abstract&issn=1520-0477&volume=082&issue=03&page=0417 target=new>http://ams.allenpress.com/amsonline/?request=get-abstract&issn=1520-0477&volume=
      082&issue=03&page=0417</a> for the abstract, and the link "print version"
      leads to a PDF of the full article.<br><br>But instead
      of following Lindzen's conclusions from his data,
      consider that in the area of the ocean he studied, the
      trop west Pac, the warmest SSTs are from currents that
      move essentially EAST, whereas the coldest move WEST.
      Hence an inverse relationship of cloud wieghted SSTs.
      Wielinki studied the tropics as a whole and found a direct
      relationship. In my view if you took the same area during El
      Nino--you would get a different result.<br><br>If you visit
      John Daly's site (<a href=http://www.john-daly.com target=new>http://www.john-daly.com</a>) there is a
      section at the bottom of his site on ENSO. Turns out that
      every few days the wind shifts. IMHO, that is related
      to electrical and flaring differences from day to
      day. When it becomes persistant one way or another,
      certain areas of the tropics are impacted depending on
      the conditions. That said, it is my view that the
      biosphere can and does impact electrical conditions, and
      hence cirrus enhancement, locally. Lindzen talks about
      "ambiant" winds. They exist, just like the jet. But
      persistant patterns, that you can see trends on Lindzen's
      data graphs, are going to move that jet, and at the
      end of the day SSTs and the biology matters most.
    • b1blancer_29501
      On Feb 28th, the Interplanetary Magnetic Field swung to a strong south-pointing orientation. That, coupled with an elevated solar wind speed and density,
      Message 702 of 702 , Mar 1 9:47 PM
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        On Feb 28th, the Interplanetary Magnetic Field
        swung to a strong south-pointing orientation. That,
        coupled with an elevated solar wind speed and density,
        triggered a G-1 class geomagnetic storm. The result was
        some high latitude aurora. See this link for a
        photgraph of aurora observed over Quebec :
        <a href=http://www.spaceweather.com/aurora/images/01mar02/Moussette2.jpg target=new>http://www.spaceweather.com/aurora/images/01mar02/Moussette2.jpg</a> . As of right now, there are 3 sunspot regions,
        namely 9839, 9842, and 9845, that appear to be capable
        of producing M-class flares. Regions 9839 and 9842
        are close to rotating out of view over the western
        limb of the solar disk. Sunspot region 9845, however,
        is close to the sun's central meridian. A rather
        large coronal hole is also approaching the sun's
        central meridian, and coming into an Earth-pointing
        position. High speed colar wind gusts are likely around the
        first of next week.<br><br>The current solar and
        geomagnetic conditions are :<br><br>NOAA sunspot number :
        153<br>SFI : 188<br>A index : 10<br>K index : 1<br><br>Solar
        wind speed : 372.3 km/sec<br>Solar wind density : 4.4
        protons/cc<br>Solar wind pressure : 1.1 nPa<br><br>IMF : 8.4
        nT<br>IMF Orientation : 0.7 nT North<br><br>Conditions for
        the last 24 hours : <br>Solar activity was low. The
        geomagnetic field was quiet to unsettled. Stratwarm Alert
        exists Friday.<br><br>Forecast for the next 24 hours
        :<br>Solar activity will be low to moderate. The geomagnetic
        field will be quiet to unsettled.<br><br>Solar Activity
        Forecast :<br>Solar activity is expected to be low to
        moderate for the next three days. Region 9845 is a
        possible source for isolated M-class
        flares.<br><br>Geomagnetic activity forecast :<br>Geomagnetic field activity
        is expected to be mainly quiet to unsettled, until
        the onset of high speed stream effects from a
        recurrent coronal hole begin to develop by day three of the
        forecast period. Isolated active conditions are
        anticipated thereafter.<br><br>Recent significant solar flare
        activity :<br>None
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