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Map of global diurnal temperature range over land from 1951 to 1980. In meteorology, diurnal temperature variation is the variation between a high air temperature and a low temperature that occurs during the same day.
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A diurnal cycle (or diel cycle) is any pattern that recurs every 24 hours as a result of one full rotation of the planet Earth around its axis. [1] Earth's rotation causes surface temperature fluctuations throughout the day and night, as well as weather changes throughout the year. The diurnal cycle depends mainly on incoming solar radiation. [2]
Köppen–Geiger climate map 1991–2020 [9] ... can be labeled BWn with the n denoting a climate ... they have a high diurnal temperature variation and low ...
The variation in temperature that occurs from the highs of the day to the cool of nights is called diurnal temperature variation. Temperature ranges can also be based on periods of a month or a year. The size of ground-level atmospheric temperature ranges depends on several factors, such as: Average air temperature; Average humidity; The regime ...
The markers thus record the furthest point reached by the mercury in each arm of the tube, and thereby the highest and lowest temperatures since the last reset. Typically the thermometer is reset every 24 hours to measure the diurnal temperature variation, the positions of the ends of the markers nearest to the mercury are examined. Their ...
Here, it is φ latitude, λ longitude, and t time, ω a the angular frequency of one year, ω d the angular frequency of one solar day, and τ = ω d t + λ the local time. t a = June 21 is the date of northern summer solstice, and τ d = 15:00 is the local time of maximum diurnal temperature.
When combining the temperature and precipitation patterns together, we have even better clues as to the local conditions. Despite this, a number of local factors contribute to the patterns observed in a particular place; therefore, a climograph is not a foolproof tool that captures all the geographic variation that might exist.