Definitions of cyclones and hurricanes
A cyclone is defined in the dictionary as “ an atmospheric system characterized by the rapid inward circulation of air masses about a low-pressure focus on, normally accompanied by stormy often destructive weather ”.
Bạn đang đọc: Cyclone vs Hurricane – Difference and Comparison
A hurricane is a type of tropical cyclone with confirm winds that exceed 74 miles per hour and accompanied by rain, thunder and lightning .
Cyclones begin in tropical regions such as Pacific islands, Northern Australia and other areas. Hurricanes are found near the tropical zone, over warm waters in the Atlantic and Pacific ocean .
Differences in Characteristics
Cyclones have a low atmospheric pressure center which is called the “ eye ”, and the wind circling around is antagonistic clockwise on the northern hemisphere and clockwise in the southern hemisphere. The amphetamine of cyclones varies from 32 to 200 kmph. Cyclones chiefly occur in a particular season and chiefly affect the coastal areas. Cyclones can be of six main types : polar, arctic low, extratropical, subtropical, tropical and mesocyclones. Hurricanes develop over ocean water warm than 26.5 Celsius and hotness and moisture from the ocean forms the footing of this type of storm. frankincense, hurricanes weaken quickly over country and over cold waters, which can not provide enough heat or moisture to sustain this ramp. The low pressure centers of hurricanes are known as the “ eye ” and are warmer than their encompassing areas. The eye is surrounded by potent winds and rain and this area is called the “ center wall ”. Hurricanes have no fronts. The hurricane season peaks from the middle of August to late October in the Atlantic Ocean.
Hurricane Isaac as seen from a NASA satellite on August 28, 2012 .
Both cyclones and hurricanes turn clockwise in the Southern hemisphere and counter-clockwise in the northern hemisphere .
Differences in Intensity and Damage
Hurricanes are classified into five categories according to the Saffir-Simpson scale. The wind speed and saturation of price increases as from Category 1 to category 5. class 1 hurricanes lawsuit minimal damage with wind instrument speeds of 74-95 miles per hour ( miles per hour ), class 2 campaign control damage with wind speeds varying from 96-110 miles per hour, class 3 cause extensive wrong, with wind speeds of 111-130 miles per hour, category 4 causes extreme wrong with wind speeds of 131-155 miles per hour, and class 5 has catastrophic damage with wind speeds of over 155 miles per hour .
The scale for measuring cyclones is called the Beaufort Scale and Saffir-Simpson scale and may vary in different countries. The scale for measuring the intensity of cyclones depends on the intensity of damage and the wind speed. The scale ranges from negligible house wrong, and destruction of plants and trees to extensive damage and widespread end, with wind instrument speed ranging from 74 to 156 miles per hour.
There are 10-14 cyclones that occur per year. In the Atlantic ocean, hurricanes occur about five or six times a class .
Cyclones and hurricanes are detected by Pulse-Doppler radar, photogrametry, and land twirl patterns .