Search results

...en put forward to explain the crash of flight [[AF447]] that sank into the sea on 31 May 2009 about {{convert|600|km}} northeast of Brazil. It encountered ...greater. If the Beaufort scale were extended, these updrafts would have a Beaufort number of 14 ''in the vertical direction''. The turbulence is then ''extrem ...

...t (e.g. a {{gli|weather balloon}}) with respect to a fixed level such as [[sea level]].<ref name="Smith"/>}} ...tmospheric density generally decreases proportionally with elevation above sea level, and also tends to vary with changes in {{gli|atmospheric pressure}}, ...

...ng.<ref>{{Cite book |last=Pugh |first=David |title=Tides, surges, and mean sea-level |date=1987 |publisher=J. Wiley |isbn=978-0-471-91505-8 |location=Chic * Shortening [[Coastal management|sea defence]] length ...

...tard||2}} took down the German U-boat {{GS|U-559||2}} in the Mediterranean Sea on October 30, 1942.<ref>Stephen Harper: ''Kampf um Enigma – Die Jagd auf U ...as [[Huff-Duff]] by Allied warships. Radar as a means of radiolocation at sea and ASDIC, an early form of [[sonar]], for sound detection under water was ...