Hurricanes by Kshudiram Saha

By Kshudiram Saha

In September 1776 the so-called "Hurricane of Independence" hit Canada and the northeastern usa, resulting in 4,170 deaths. In 1900 round 8,000 perished within the Galveston storm and the ensuing tidal surge. Coastal defenses, early caution platforms, and evacuation systems have more advantageous drastically. although, hurricanes nonetheless pose a almost certainly devastating chance to existence and estate, specially in coastal areas of the USA and the Caribbean. What reasons those severe storms? How do we top safeguard ourselves?

Hurricanes: A Reference guide explores the ancient, ecological, financial, and social dimensions of hurricanes in North the USA. Synthesizing literature from quite a lot of authoritative assets, this publication is a useful advisor to hurricanes and their influence and is vital analyzing for college kids, scientists, mariners, and coastal citizens alike.

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As a result, hurricanes making landfall experience rapid decay. If the storm remains over land, its maximum sustained winds will decrease on average 45 mph per day, and the rate of dissipation is even faster for initially strong storms (Kaplan and DeMaria 1995; Emanuel 2000). Thirty-six hours after landfall, inland storms rarely contain winds above tropical depression strength. Extratropical Transition Often, public interest in a hurricane diminishes when a hurricane moves to higher latitudes or makes landfall, weakens, and begins to lose its tropical characteristics.

In addition, mountains “lift” air in hurricanes, increasing cloud formation and rainfall. Rainfall rates of 1–2 feet per day are not uncommon in mountainous regions when hurricanes pass through. In fact, the highest hurricane rainfall amounts have occurred in the mountains of La Reunion Island (see chapter 4 for details). Some examples regarding rainfall damage and fatalities follow. Hurricane Camille (1969), which made landfall in Mississippi, dumped 30 inches of rain in six hours in the Blue Ridge Mountains, triggering flash floods and mud slides that killed 114 people in Virginia and 2 in West Virginia.

Hurricane size is typically categorized by the radial extent of gale-force winds (32–54 mph). Mariners and the navy typically avoid winds stronger than gale-force. Furthermore, many hurricane preparedness exercises are required to be completed before gale-force winds begin, and often bridges are closed when gale-force winds ensue. It should be noted that other more sophisticated means exist to quantify hurricane size (Liu and Chan 1999, 2002; Carr and Elsberry 1997), but gale-force winds are the most relevant.

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