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Rainfall distribution by month in Cairns showing the extent of the wet season at that location. The wet, or rainy, season is the time of year, covering one or more months, when most of the average annual rainfall in a region falls. [68] The term green season is also sometimes used as a euphemism by tourist authorities. [69]
The strength of the water cycle and its changes over time are of considerable interest, especially as the climate changes. [26] The hydrological cycle is a system whereby the evaporation of moisture in one place leads to precipitation (rain or snow) in another place. For example, evaporation always exceeds precipitation over the oceans.
Precipitation is measured using a rain gauge, and more recently remote sensing techniques such as a weather radar. When classified according to the rate of precipitation, rain can be divided into categories. Light rain describes rainfall which falls at a rate of between a trace and 2.5 millimetres (0.098 in) per hour. Moderate rain describes ...
Surface runoff is defined as precipitation (rain, snow, sleet, or hail [5]) that reaches a surface stream without ever passing below the soil surface. [6] It is distinct from direct runoff, which is runoff that reaches surface streams immediately after rainfall or melting snowfall and excludes runoff generated by the melting of snowpack or ...
As the two trade winds converge, the cool, dry air collects moisture from the warm ocean and rises, contributing to cloud formation and precipitation. The low pressure area that is created by the movement of the trade winds acts as a vacuum , drawing in the cooler, dry air from high pressure areas (divergence zones), creating a convection cell ...
A reservoir in Beijing's Changping district logged a precipitation reading of 744.8mm (29.3 inches) between Saturday and Wednesday, the most in the city in over 140 years and far exceeding the ...
Annual precipitation and air quality were given a 2x weighted ranking. Then, we averaged the total rankings for each city to determine the best and worst cities for getting outside. DepositPhotos.com
Climate change is not about what might happen to your grandchild in 50 years or about what’s happening to polar bears on ice fields somewhere. It is about your life and the risks to your life ...