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actinometer
(Encyclopedia)actinometer ăkˌtənŏmˈətər [key], instrument used to measure the heating power of radiation. Actinometers are used chiefly in meteorology to measure solar radiation as transmitted directly by th...Freycinet, Louis Claude Desaulses de
(Encyclopedia)Freycinet, Louis Claude Desaulses de də frāsēnāˈ [key], 1779–1842, French marine officer. He was assigned (1800) to a French exploring expedition in Australian waters; after his return to Pari...ceilometer
(Encyclopedia)ceilometer sēlŏmˈĭtər [key], in aviation and meteorology, automatic instrument used to record ceiling, i.e., the altitude of the lowest cloud layer covering more than half of the sky. The ceilome...Maury, Matthew Fontaine
(Encyclopedia)Maury, Matthew Fontaine fŏntānˈ môrˈē [key], 1806–73, American hydrographer and naval officer, b. near Fredericksburg, Va. Appointed a midshipman in 1825, he saw varied sea duty until a stagec...weather satellite
(Encyclopedia)weather satellite, artificial satellite used to gather data on a global basis for improvement of weather forecasting. Information includes cloud cover, storm location, temperature, and heat balance in...FitzRoy, Robert
(Encyclopedia)FitzRoy, Robert, 1805–65, British naval officer, meteorologist, and hydrologist. Given (1829) temporary command of the HMS Beagle, he completed a survey of the coasts of Patagonia and Tierra del Fue...front
(Encyclopedia)CE5 Fronts: A. Advance of a cold front B. Advance of a warm front front, in meteorology, zone of transition between adjacent air masses. If a cold air mass is advancing to replace a warmer one, th...Galton, Sir Francis
(Encyclopedia)Galton, Sir Francis gôlˈtən [key], 1822–1911, English scientist, founder of eugenics; cousin of Charles Darwin. He turned from exploration and meteorology (where he introduced the theory of the a...hydrology
(Encyclopedia)hydrology, study of water and its properties, including its distribution and movement in and through the land areas of the earth. The hydrologic cycle consists of the passage of water from the oceans ...fractal geometry
(Encyclopedia)fractal geometry, branch of mathematics concerned with irregular patterns made of parts that are in some way similar to the whole, e.g., twigs and tree branches, a property called self-similarity or s...Browse by Subject
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