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American Meteorological Society
行业: Weather
Number of terms: 60695
Number of blossaries: 0
Company Profile:
The American Meteorological Society promotes the development and dissemination of information and education on the atmospheric and related oceanic and hydrologic sciences and the advancement of their professional applications. Founded in 1919, AMS has a membership of more than 14,000 professionals, ...
Il valore minimo raggiunto (o raggiungibile) di una funzione; l'opposto di massimo. (Veda ulteriore discussione sotto massimo.)
Industry:Weather
La temperatura minima raggiunta in un luogo specifico durante un periodo specificato.
Industry:Weather
Un'eco radar da fulmini. Echi di fulmine si spiegano con la diffusione delle onde radar dall'alta concentrazione di elettroni liberi, creato nel canale stretto di uno scarico del lampo. Poiché gli elettroni si ricombinano velocemente, echi di fulmini hanno breve durata, in genere 1 s o meno.
Industry:Weather
Il valore minimo deflusso osservato durante un anno di acqua. Può essere un valore istantaneo, la più piccola media di 24 ore oppure una media su un periodo più lungo di tempo.
Industry:Weather
Quasi permanente alta subtropicale del Nord Pacifico centrato, in media, a 30 ° – 40 ° N e 140 ° comprese ° w. Classifica media della pressione sul livello del mare, questa alta è un centro principale di azione.
Industry:Weather
The time-of-arrival technique refers to locating the source of an emitted signal from a precise recording of the time that a signal is observed. For example, the time interval between an observed lightning flash and the arrival of the thunder can be used to estimate the distance to the lightning flash. On the average, a time arrival difference of five seconds indicates that a lightning flash occurred one mile away from the observer, since the speed of sound in air is approximately 1000 ft s<sup>−1</sup>.
Industry:Weather
Una sequenza di interazioni che smorza o riduce la risposta ad una perturbazione iniziale. Ad esempio, si consideri una superficie soggetta a un aumento della radiazione in arrivo. Questo cambiamento nell'equilibrio energetico produce un aumento della temperatura che, in virtù della legge di Boltzmann Stefan–, si traduce in un aumento della radiazione emessa dalla superficie. Così, l'interazione di temperatura e radiazione agisce per contrastare parzialmente la perturbazione originale. Confrontare un feedback positivo.
Industry:Weather
The difference between the mean velocity of fluid flow and the instantaneous velocity at a point. For example, <center>[[File:ams2001glos-Ee7.gif
Industry:Weather
One of the western boundary currents of the Atlantic Ocean and part of the pathway for water from the Southern into the Northern Hemisphere in the global ocean conveyor belt. Flowing northward along the coast of northern Brazil with speeds up to 0. 8 m s<sup>−1</sup>, it originates from the South Equatorial Current and continues as the Guyana Current.
Industry:Weather
The broad region of uniform westward flow that forms the southern part of the Northern Hemisphere subtropical gyres driven by the trade winds. Being directly wind driven, the NEC responds quickly to variations in the wind field and is therefore strongest in winter (February). In the Atlantic Ocean it is found between 8° and 30°N with speeds of 0. 1–0. 3 m s<sup>−1</sup>. In the Pacific Ocean it has similar speed but is limited to 8°–20°N. In the Indian Ocean it exists only during December–April when the northeast monsoon produces the same wind forcing as the Northern Hemisphere trade winds. It then runs as a narrow current of 0. 3 m s<sup>−1</sup> from Malacca Strait to Sri Lanka where it bends southward and accelerates in the region 60°–75°E to 0. 5–0. 8 m s<sup>−1</sup> between 2°S and 5°N and continues along the equator.
Industry:Weather
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