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The quantitative precipitation forecast (abbreviated QPF) is the expected amount of melted precipitation accumulated over a specified time period over a specified area. [1] A QPF will be created when precipitation amounts reaching a minimum threshold are expected during the forecast's valid period. Valid periods of precipitation forecasts are ...
3D nowcasting refers to an experimental technology of nowcasting in meteorology that uses a rapid phased-array radar to predict precipitation several minutes in advance. [1] The phased-array radar takes a scan of the sky in anywhere from 10–30 seconds, viewing 100 vertical levels in a range of 60 km. [2] thus providing inputs every 30 seconds.
Nowcasting (meteorology) Forecast (blue lines) by « AutoNowcaster » for a thunderstorm line. Nowcasting is weather forecasting on a very short term mesoscale period of up to 2 hours, according to the World Meteorological Organization, and up to six hours, according to other authors in the field. [1] [2] This forecast is an extrapolation in ...
Weather reconnaissance aircraft, such as this WP-3D Orion, provide data that is then used in numerical weather forecasts.. The atmosphere is a fluid.As such, the idea of numerical weather prediction is to sample the state of the fluid at a given time and use the equations of fluid dynamics and thermodynamics to estimate the state of the fluid at some time in the future.
The forecasting of the weather for the following six hours is often referred to as nowcasting. [70] In this time range it is possible to forecast smaller features such as individual showers and thunderstorms with reasonable accuracy, as well as other features too small to be resolved by a computer model.
The Global Environmental Multiscale Model (GEM), often known as the CMC model in North America, is an integrated forecasting and data assimilation system developed in the Recherche en Prévision Numérique (RPN), Meteorological Research Branch (MRB), and the Canadian Meteorological Centre (CMC). Along with the NWS 's Global Forecast System (GFS ...
26 March 2017. Global Precipitation Measurement (GPM) is a joint mission between JAXA and NASA as well as other international space agencies to make frequent (every 2–3 hours) observations of Earth's precipitation. It is part of NASA's Earth Systematic Missions program and works with a satellite constellation to provide full global coverage.
Earthquake nowcasting, suggested in 2016 [118] [119] is the estimate of the current dynamic state of a seismological system, based on natural time introduced in 2001. [120] It differs from forecasting which aims to estimate the probability of a future event [ 121 ] but it is also considered a potential base for forecasting.