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Re: Monsoon and Bangladesh

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  • Pawnfart
    What is also interesting is the changing magnetic field there. The Indian ocean is one of the warmest and saltiest to contain methane hydrate fields, even
    Message 1 of 702 , Aug 2, 2001
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      What is also interesting is the
      changing<br>magnetic field there. The Indian ocean is one of the
      warmest and saltiest to contain methane hydrate fields,
      even if river and detritus flow conditions are ripe
      for formation of fields as opposed to merely methane
      hydrates suspended during parts of the year.<br><br>Take a
      look at where methane hydrates FIELDS are known to
      exist:<br><br><a href=http://woodshole.er.usgs.gov/project-pages/hydrates/where.html target=new>http://woodshole.er.usgs.gov/project-pages/hydrates/where.html</a><br><br>I think it is very interesting that on the north
      west coast of India there is a large field but on the
      east coast, despite the huge river delta, no field (at
      least now). Could that be why the SST anomalies are
      cooler to the west of India and not the east? The
      problem is that if oceans become too warm and salty, the
      phase stability of the methane hydrates decreases and
      they must form at a deeper and deeper part of the
      ocean in the Bay of Bengal. If ocean temperatures are
      indeed rising, this is one of the first places that one
      would expect drier conditions, or at the very least, a
      more seasonal rainfall, as the oceans have to bee cold
      enough and the rivers running enough biological material
      to have a sustained methane hydrate presence. In
      reality, this should actually result in LESS flooding in
      the region, but it is hard to say with the seasonal
      implications. In may just mean more extremes of flooding and
      drought. The flooding would also then be related to higher
      SSTs and not just the electrical enhancement of
      cirrus.
    • 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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