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An intensity-duration-frequency curve (IDF curve) is a mathematical function that relates the intensity of an event (e.g. rainfall) with its duration and frequency of occurrence. [1] Frequency is the inverse of the probability of occurrence. These curves are commonly used in hydrology for flood forecasting and civil engineering for urban ...
A subbox for displaying meteorological information for a storm according to data from the India Meteorological Department (IMD). Should be used adjacent to an 'Infobox weather event' template, and before an 'Infobox weather event/Footer' template. Template parameters [Edit template data] This template prefers block formatting of parameters. Parameter Description Type Status Child display ...
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.
An example of 500 mbar geopotential height and absolute vorticity prediction from a numerical weather prediction model Main article: Numerical weather prediction The basic 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 ...
Example of a five-day rainfall forecast from the Hydrometeorological Prediction Center. The quantitative precipitation forecast (abbreviated QPF) is the expected amount of melted precipitation accumulated over a specified time period over a specified area. [1]
An example of a double mass analysis is a "double mass plot", or "double mass curve". [3] For this, points and/or a joining line are plotted where the x- and y- coordinates are determined by the running totals of the values observed at two stations.
IMD became a member of the World Meteorological Organisation after independence on 27 April 1949. [6] The agency has gained in prominence due to the significance of the monsoon rains on Indian agriculture. It plays a vital role in preparing the annual monsoon forecast, as well as in tracking the progress of the monsoon across India every season ...
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