Blunderov
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"We think in generalities, we live in details"
  
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RE: virus: On the Trail of the Super-Hurricane
« on: 2005-09-15 18:46:17 » |
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[Blunderov] A consensus seems to be developing that hurricanes are
increasing in both strength and frequency due to warmer waters. Many
climatologists expect this trend to continue but not all do. Some think
other factors such as wind shear may be disturbed too and perhaps hurricanes
will become weaker and more infrequent instead.
Should NO be rebuilt at all? Only if it is made to be a LOT more hurricane
resistant than it was before is my weyken.
This talk was given in Oct 2004.
http://www.nyas.org/events/eventDetail.asp?eventID=1915&date=10/12/2004%207:
00:00%20PM
"On the Trail of the Super-Hurricane
Speaker: Nicholas Coch, Queens College
Sponsored by: Atmospheric Sciences & Geology Section
The most dangerous type of hurricane is one that undergoes rapid
intensification before it makes landfall. A dramatic example of this
relatively rare phenomenon is the "super-hurricane" that destroyed the
central Florida Keys, killing many people on Labor Day, 1935.
That storm was only a Category 1 hurricane in the nearby Bahamas the day
before. It subsequently was transformed into a Category 5 hurricane, with
the lowest central pressure ever recorded in the United States. This
intensification was puzzling at first because the storm was moving westward
at a rate of only 9 miles per hour.
Slow moving hurricanes tend to weaken as they draw colder water from below
the thermocline toward the surface. The answer for the intensification may
have been meteorological, but weather data is scarce for that period.
The death toll reached 600, with most of the fatalities being WW1 Veterans
that were building U.S. Route 1 parallel to the railroad built to Key West
by Henry Flager at the beginning of the Century. Railroad construction had
restricted circulation between the Atlantic and the Gulf of Mexico because
many smaller tidal creeks had been filled in to form embankments for the
railroad and long bridge sections were supported on numerous wide piers.
These anthropogenic changes in tidal circulation increased deaths from
hurricane storm surge. Attempts to evacuate the veterans failed and the
tragedy lead to the only Congressional Investigation of a hurricane.
Research since 1935 suggests that oceanographic factors, as well as
meteorological ones, may lead to rapid intensification in Florida and gulf
hurricanes. It is important to understand the factors governing hurricane
intensification before a future "super-hurricane" heads directly toward one
of our southern coastal urban metropolitan areas. The storm landfall could
be in Miami, Tampa, New Orleans, or, once again, Galveston."
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