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An observation balloon is a type of balloon that is employed as an aerial platform for gathering intelligence and spotting artillery. The use of observation balloons began during the French Revolutionary Wars , reaching their zenith during World War I , and they continue in limited use today.
This glossary of geography terms is a list of definitions of terms and concepts used in geography and related fields, including Earth science, oceanography, cartography, and human geography, as well as those describing spatial dimension, topographical features, natural resources, and the collection, analysis, and visualization of geographic ...
Caquot kite balloon (in French Caquot Captif) was a type of non-rigid military observation balloon, designed in 1915 by Albert Caquot. The type became widely used by Allied forces in World War I warfare for multiple observation or naval defence uses and later also as a anti-aircraft barrage balloon .
German observation balloon launching at Équancourt in the Somme (22 September 1916) German war plane brings down a tethered kite balloon (1918) World War I was the high point for the military use of observation balloons, which were extensively deployed by both sides. The British, despite their experience in late 1800s Africa, were behind ...
In the 1940s, French, British and American army meteorologists worked together to release weather balloons in order to plot data of weather conditions for United Nations fliers.
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 ...
Drachen kite balloon, showing its characteristic shape. A kite balloon is a tethered balloon which is shaped to help make it stable in low and moderate winds and to increase its lift. It typically comprises a streamlined envelope with stabilising features and a harness or yoke connecting it to the main tether and a second harness connected to ...
Sometimes, a British English name does not match the pronunciation of the same name elsewhere in the English-speaking world (Birmingham); some letter combinations are notoriously misleading (Slough, Hough Green, Middlesbrough, Westhoughton); and some names simply give few clues away (Happisburgh, Wrotham, Milngavie).