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  • Pawnfart
    Message 1 of 702 , May 15, 2001
      Thanks Mid,<br><br>MAGNETIC THOUGHTS
      <br><br><a href=http://www.sciam.com/askexpert/geology/geology10/geology10.html target=new>http://www.sciam.com/askexpert/geology/geology10/geology10.html</a> <br><br>Comment: <br><br>Decreasing magnetic
      field is consistant with a warming ocean, with more
      methane hydrates involved in counter currents.
      <br><br><a href=http://www.sciam.com/askexpert/geology/geology6.html target=new>http://www.sciam.com/askexpert/geology/geology6.html</a> <br><br>Comment: <br><br>I am not sure I agree
      100% with this. What maintains the field? Why wouldn't
      the moving ionosphere play a role by inducting
      <br><br><a href=http://www.geolab.nrcan.gc.ca/geomag/e_nmpole.html target=new>http://www.geolab.nrcan.gc.ca/geomag/e_nmpole.html</a> <br><br>Comment: <br><br>As magnetic north
      migrates to geographical north, what are the cirrus cloud
      implications? Melting Arctic? Thunderstorms in Alaska?
      <br><br><a href=http://www.sciam.com/explorations/2001/012901human/index.html target=new>http://www.sciam.com/explorations/2001/012901human/index.html</a> <br><br>Comment: <br><br>How does the last
      magnetic flip just over 200,000 years ago match with the
      emergence of modern humans? If a flip results in severe
      climate, wouldn't that suggest a die off to Africa, where
      climate might remain more mild?
    • 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, 2002
        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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