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The Quantitative Precipitation Forecast (abbreviated QPF) is the expected amount of liquid precipitation accumulated over a specified time over a specified area. [115] A QPF will be specified when a measurable precipitation type reaching a minimum threshold is forecast for any hour during a QPF valid period.
Typical precipitation types associated with a warm front advancing over frigid air Precipitation in the form of a sunshower. In meteorology, the different types of precipitation often include the character, formation, or phase of the precipitation which is falling to ground level. There are three distinct ways that precipitation can occur.
Precipitation is any meteorological phenomenon featuring water falling from the clouds, such as rain, snow, or hail. Precipitation may also refer to: Alkaline precipitation, meteorological precipitation characterized by high alkalinity; Precipitation (chemistry), condensation of a solid from a solution during a chemical reaction:
Also actiniform. Describing a collection of low-lying, radially structured clouds with distinct shapes (resembling leaves or wheels in satellite imagery), and typically organized in extensive mesoscale fields over marine environments. They are closely related to and sometimes considered a variant of stratocumulus clouds. actinometer A scientific instrument used to measure the heating power of ...
Long-term mean precipitation by month. Earth rainfall climatology Is the study of rainfall, a sub-field of meteorology.Formally, a wider study includes water falling as ice crystals, i.e. hail, sleet, snow (parts of the hydrological cycle known as precipitation).
acid rain - rain or other forms of precipitation that is unusually acidic. adaptation - a characteristic of an organism that has been favoured by natural selection. adaptive radiation - closely related species that look very different, as a result of having adapted to widely different ecological niches.
280 if 70% or more of the total precipitation is in the high-sun half of the year (April through September in the Northern Hemisphere, or October through March in the Southern), or; 140 if 30%–70% of the total precipitation is received during the applicable period, or; 0 if less than 30% of the total precipitation is so received.
In continental climates, precipitation tends to be moderate in amount, concentrated mostly in the warmer months. Only a few areas—in the mountains of the Pacific Northwest of North America and in Iran, northern Iraq, adjacent Turkey, Afghanistan, Pakistan, and Central Asia—show a winter maximum in precipitation. A portion of the annual ...