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The Köppen climate classification system was modified further within the Trewartha climate classification system in 1966 (revised in 1980). The Trewartha system sought to create a more refined middle latitude climate zone, which was one of the criticisms of the Köppen system (the climate group C was too general).
Modern climate classification methods can be broadly divided into genetic methods, which focus on the causes of climate, and empiric methods, which focus on the effects of climate. Examples of genetic classification include methods based on the relative frequency of different air mass types or locations within synoptic weather disturbances.
Under the Köppen climate classification system, the most popular climate classification system in the world, Phoenix is in a hot desert climate (BWh), like many other cities and towns in the ...
The climate of a location is affected by its latitude, longitude, terrain, altitude, land use and nearby water bodies and their currents. [3] Climates can be classified according to the average and typical variables, most commonly temperature and precipitation. The most widely used classification scheme is the Köppen climate classification.
The Köppen classification depends on average monthly values of temperature and precipitation. The most commonly used form of the Köppen classification has five primary types labeled A through E. Specifically, the primary types are A, tropical; B, dry; C, mild mid-latitude; D, cold mid-latitude; and E, polar.
Charles Warren Thornthwaite (March 7, 1899 – June 11, 1963) was an American geographer and climatologist.He is best known for devising the Thornthwaite climate classification, a climate classification system modified in 1948 that is still in use worldwide, and also for his detailed water budget computations of potential evapotranspiration.
The First National Climate Assessment was published in 2000. [5] [Notes 1] Between 2002 and 2009, USGCRP previously known as the U.S. Climate Change Science Program (CCSP), produced 21 Synthesis and Assessment Products (SAPs). [6] The second NCA was published in 2009 [6] and the third was released in 2014. [7]
Featuring six climate provinces: Tropical, mesothermal, microthermal, taiga, tundra and frost. [3] [5] The T-E index is the sum of the 12 monthly T-E ratios, which can be calculated as: =, where t is the mean monthly temperature in °F. [6]