Beaufort Scale | Beaufortova stupnice. Stupnice pro vyjádření síly větru ve 12 stupních podle dynamického působení větru na pozemní předměty nebo hladinu . Apr 25, English: Category:Beaufort scale. Français: Catégorie:Échelle de Beaufort. Nederlands: Categorie:Schaal van Beaufort. The Beaufort scale /ˈboʊfərt/ is an empirical measure that relates wind speed to observed conditions at sea or on land. Its full name is the Beaufort wind force.
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Wave beuafortova in the scale are for conditions in the open ocean, not along the shore. Add to Wish List. The Beaufort scale was extended inwhen forces 13 to 17 were added. In the United States, winds of force 6 or 7 result in the issuance of a small craft advisorywith force 8 or 9 winds bringing about a gale warningforce 10 or 11 a storm warning “a tropical storm warning ” being issued instead of the latter two if the winds relate to a tropical ebaufortovaand force 12 a hurricane-force wind warning or hurricane warning if related to a tropical cyclone.
Share Facebook Twitter Pinterest. The initial scale of thirteen classes zero to twelve did not reference wind speed numbers but related qualitative wind conditions to effects on the sails of a frigatethen the main ship of the Royal Navyfrom “just sufficient to give steerage” to “that which no canvas sails could withstand”. Add gift card or promotion code. Amazon Renewed Refurbished products with a stupnjce.
Retrieved November 27, Retrieved 4 January Get fast, free shipping with Amazon Prime. The wind speeds in different units are not mathematically equivalent; e. Using this beauforhova the highest winds in hurricanes would be 23 in the scale.
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This page was last edited on 9 Decemberat Where v is the equivalent wind speed at beaufotova metres above the sea surface and B is Beaufort scale number. Retrieved 13 May Principles of Meteorological Analysis. Give Album or Song as Gift. May 29, Label: You have exceeded the maximum number of MP3 items in your MP3 cart.
Exceptionally high waves; small- and medium-sized ships might be for a long time lost to view behind the waves; sea is covered with long white patches of foam; everywhere the edges of the wave crests are blown into foam; visibility affected.
Amazon Advertising Find, attract, and engage customers. The reason is that the Beaufort scale is not an exact nor an objective scale. Amazon Inspire Digital Educational Resources. Additional taxes may apply.
Taiwan uses the Beaufort scale with the extension to 17 noted above. From Wikipedia, the free encyclopedia.
Sea heaps up and white foam from etupnice waves begins to be blown in streaks along the direction of the wind; spindrift begins to be seen. These designations were standardized nationally inwhereas “light wind” can refer to 0 to 12 or 0 to 15 knots and “moderate wind” 12 to 19 or 16 to 19 knots, depending on regional custom, definition or practice.
China also switched to this extended version without prior notice on the morning of 15 May and the extended scale was immediately put to use for Typhoon Chanchu. Hazard scales Wind Marine meteorology and sailing Scales.
Get to Know Us. Product details Original Release Date: Small wavelets still short but more pronounced; crests have a glassy appearance but do not break. Rotations to scale numbers were standardized only in