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  • Pawnfart
    Last time there was substantial dam and delta changes on rivers with heavy sed/detritis rates was during the Dust Bowl era, from 1925-38 or so. Flaring
    Message 1 of 702 , Jul 10, 2001
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      Last time there was substantial dam and delta
      changes on rivers with heavy sed/detritis rates was
      during the Dust Bowl era, from 1925-38 or so. Flaring
      occurred and broke the drought up a bit back then, too.
      Great Lake levels dropped then, too. The US is
      fortunate that we have the Mississippi subsisting at a time
      when these dams are going up, because it is
      ameliorating the cirrus reduction that should occur. Further,
      CO2 is methanogen food, and higher levels are also
      reducing the potential dry and cool conditions from lack
      of cirrus enhancement. But at the end of the day,
      when the dams and oceans reach some biological and
      ecological stability from the altered sed and flow rates,
      more CO2 is going to mean more cirrus activity, and
      warmer, wetter conditions as long as the methanogen
      activity doesn't change the conductivity of the oceans, or
      the magnetic properties of the earth. Those are two
      big and dangerous assumptions. <br><br>Not everyone
      agrees--but check out this
      exchange:<br><br><a href=http://www.ssiatty.com/climate/morelake.html target=new>http://www.ssiatty.com/climate/morelake.html</a>
    • 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
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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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