|
Downwind
Windward () and leeward () are terms used to describe the direction of the wind. Windward is ''upwind'' from the point of reference, i.e. towards the direction from which the wind is coming; leeward is ''downwind'' from the point of reference, i.e. along the direction towards which the wind is going. The side of a ship that is towards the leeward is its "lee side". If the vessel is heeling under the pressure of crosswind, the lee side will be the "lower side". During the Age of Sail, the term ''weather'' was used as a synonym for ''windward'' in some contexts, as in the ''weather gage''. Because it captures rain, the windward side of a mountain tends to be wet compared to the leeward it blocks. Origin The term "lee" comes from the middle-low German word // meaning "where the sea is not exposed to the wind" or "mild". The terms Luv and Lee (engl. Windward and Leeward) have been in use since the 17th century. Usage Windward and leeward directions (and the points o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heeling (sailing)
Sailing employs the wind—acting on sails, wingsails or kites—to propel a craft on the surface of the ''water'' (sailing ship, sailboat, raft, windsurfer, or kitesurfer), on ''ice'' (iceboat) or on ''land'' (land yacht) over a chosen course, which is often part of a larger plan of navigation. From prehistory until the second half of the 19th century, sailing craft were the primary means of maritime trade and transportation; exploration across the seas and oceans was reliant on sail for anything other than the shortest distances. Naval power in this period used sail to varying degrees depending on the current technology, culminating in the gun-armed sailing warships of the Age of Sail. Sail was slowly replaced by steam as the method of propulsion for ships over the latter part of the 19th century – seeing a gradual improvement in the technology of steam through a number of stepwise developments. Steam allowed scheduled services that ran at higher average speeds than sail ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sailing
Sailing employs the wind—acting on sails, wingsails or kites—to propel a craft on the surface of the ''water'' (sailing ship, sailboat, raft, windsurfer, or kitesurfer), on ''ice'' (iceboat) or on ''land'' (land yacht) over a chosen course, which is often part of a larger plan of navigation. From prehistory until the second half of the 19th century, sailing craft were the primary means of maritime trade and transportation; exploration across the seas and oceans was reliant on sail for anything other than the shortest distances. Naval power in this period used sail to varying degrees depending on the current technology, culminating in the gun-armed sailing warships of the Age of Sail. Sail was slowly replaced by steam as the method of propulsion for ships over the latter part of the 19th century – seeing a gradual improvement in the technology of steam through a number of stepwise developments. Steam allowed scheduled services that ran at higher average speeds than sail ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Points Of Sail
A point of sail is a sailing craft's direction of travel under sail in relation to the true wind direction over the surface. The principal points of sail roughly correspond to 45° segments of a circle, starting with 0° directly into the wind. For many sailing craft 45° on either side of the wind is a ''no-go'' zone, where a sail is unable to mobilize power from the wind. Sailing on a course as close to the wind as possible—approximately 45°—is termed ''beating'', a point of sail when the sails are ''close-hauled''. At 90° off the wind, a craft is on a ''beam reach''. The point of sail between beating and a beam reach is called a ''close reach''. At 135° off the wind, a craft is on a ''broad reach''. At 180° off the wind (sailing in the same direction as the wind), a craft is ''running downwind''. A given point of sail (beating, close reach, beam reach, broad reach, and running downwind) is defined in reference to the true wind—the wind felt by a stationary observe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wind-surfing
Windsurfing is a wind propelled water sport that is a combination of sailing and surfing. It is also referred to as "sailboarding" and "boardsailing", and emerged in the late 1960s from the aerospace and surf culture of California. Windsurfing gained a popular following across Europe and North America by the late 1970s and had achieved significant global popularity by the 1980s. Windsurfing became an olympic sport in 1984. Newer variants include windfoiling, kiteboarding and wingfoiling. Hydrofoil fins under the board allow the boards to safely lift out of the water and fly silently and smoothly above the surface even in lighter winds. Windsurfing is a recreational, family friendly sport, most popular at flat water locations around the world that offer safety and accessibility for beginner and intermediate participants. Technique and equipment have evolved over the years Major competitive disciplines include slalom, wave and freestyle. Increasingly, "foiling" is replacing trad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northwestern Hawaiian Islands
The Northwestern Hawaiian Islands or Leeward Hawaiian Islands are a series of islands and atolls in the Hawaiian island chain located northwest (in some cases, far to the northwest) of the islands of Kauai and Niihau. Politically, they are all part of Honolulu County in the U.S. state of Hawaii, except Midway Atoll, which is a territory distinct from the State of Hawaii, and grouped as one of the United States Minor Outlying Islands. The United States Census Bureau defines this area, except Midway, as Census Tract 114.98 of Honolulu County. Its total land area is . All the islands except Nihoa are north of the Tropic of Cancer, making them the only islands in Hawaii that lie outside the tropics. The Northwestern or Leeward Hawaiian Islands include: *Nihoa (Moku Manu) at * Necker (Mokumanamana) at *French Frigate Shoals (Kānemilohai) at *Gardner Pinnacles (Pūhāhonu) at *Maro Reef (Nalukākala) at *Laysan (Kauō) at * Lisianski (Papaāpoho) at *Pearl and Hermes Atoll (Hol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Nautical Terms
This glossary of nautical terms is an alphabetical listing of terms and expressions connected with ships, shipping, seamanship and navigation on water (mostly though not necessarily on the sea). Some remain current, while many date from the 17th to 19th centuries. The word nautical derives from the Latin ''nauticus'', from Greek ''nautikos'', from ''nautēs'': "sailor", from ''naus'': "ship". Further information on nautical terminology may also be found at Nautical metaphors in English, and additional military terms are listed in the Multiservice tactical brevity code article. Terms used in other fields associated with bodies of water can be found at Glossary of fishery terms, Glossary of underwater diving terminology, Glossary of rowing terms, and Glossary of meteorology. This glossary is split into two articles: * terms starting with the letters A to L are at Glossary of nautical terms (A-L) * terms starting with the letters M to Z are at Glossary of nautical terms (M-Z). __NO ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Windward Islands
french: Îles du Vent , image_name = , image_caption = ''Political'' Windward Islands. Clockwise: Dominica, Martinique, Saint Lucia, Saint Vincent and the Grenadines, and Grenada. , image_alt = , locator_map = , location = Caribbean SeaNorth Atlantic Ocean , coordinates = , area_km2 = 3232.5 , total_islands = 90+ , major_islands = CarriacouDominicaGrenadaMartiniquePetite MartiniqueSaint Lucia Saint Vincent , highest_mount = Morne Diablotins, Dominica , elevation_m = 1,447 , country = Dominica , country_largest_city = Roseau , country1 = Grenada , country1_largest_city = St. George's , country2 = Martinique , country2_largest_city = Fort-de-France , country3 = Saint Lucia , country3_largest_city = Castries , country4 = Saint Vincent and the Grenadines , country4_largest_city = Kingstown , density_km2 = 227 , population = 854,000 , ethnic_groups = The Windward Islands are the southern, generally larger islands of the Lesser Antilles. Part of the West Indies, they lie south ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leeward Islands
french: Îles-Sous-le-Vent , image_name = , image_caption = ''Political'' Leeward Islands. Clockwise: Antigua and Barbuda, Guadeloupe, Saint kitts and Nevis. , image_alt = , locator_map = , location = Caribbean SeaNorth Atlantic Ocean , coordinates = , area_km2 = , total_islands = 30+ , major_islands = Antigua and BarbudaGuadeloupeMontserratSaint Kitts and Nevis Saint MartinVirgin Islands , highest_mount = La Grande Soufrière, Guadeloupe , elevation_m = 1,467 , country = Antigua and Barbuda , country_largest_city = St. John's , country1 = Guadeloupe , country1_largest_city = Les Abymes , country2 = Saint Kitts and Nevis , country2_largest_city = Basseterre , country3 = Sint Maarten , country3_largest_city = Philipsburg , density_km2 = , population = +700,000 , ethnic_groups = The Leeward Islands () are a group of islands situated where the northeastern Caribbean Sea meets the western Atlantic Ocean. Starting with the Virgin Islands east of Puerto Rico, they extend s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Precipitation (meteorology)
In meteorology, precipitation is any product of the condensation of atmospheric water vapor that falls under gravitational pull from clouds. The main forms of precipitation include drizzle, rain, sleet, snow, ice pellets, graupel and hail. Precipitation occurs when a portion of the atmosphere becomes saturated with water vapor (reaching 100% relative humidity), so that the water condenses and "precipitates" or falls. Thus, fog and mist are not precipitation but colloids, because the water vapor does not condense sufficiently to precipitate. Two processes, possibly acting together, can lead to air becoming saturated: cooling the air or adding water vapor to the air. Precipitation forms as smaller droplets coalesce via collision with other rain drops or ice crystals within a cloud. Short, intense periods of rain in scattered locations are called showers. Moisture that is lifted or otherwise forced to rise over a layer of sub-freezing air at the surface may be condense ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lee Shore
A lee shore, sometimes also called a leeward ( shore, or more commonly ), is a nautical term to describe a stretch of shoreline that is to the lee side of a vessel—meaning the wind is blowing towards land. Its opposite, the shore on the windward side of the vessel, is called the weather or windward shore ( or, more commonly, ). Due to the dangers of being driven aground on a lee shore it is essential seamanship to treat one with caution. Use of the terms "windward", "leeward", and "lee" Usage of the terms to describe shores in relation to an arbitrary point of view, including on land, can lead to ambiguity. The windward shore of an island is a lee shore from the perspective of a vessel travelling offshore. Although the terms are often confused, "the lee shore" is different from "a leeward shore" based on the reference point from which the shore is viewed. Notice the different articles "the" and "a" — "the" windward or leeward shore versus "a" lee shore. The shore that is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foehn Wind
A Foehn or Föhn (, , ), is a type of dry, relatively warm, downslope wind that occurs in the lee (downwind side) of a mountain range. It is a rain shadow wind that results from the subsequent adiabatic warming of air that has dropped most of its moisture on windward slopes (see orographic lift). As a consequence of the different adiabatic lapse rates of moist and dry air, the air on the leeward slopes becomes warmer than equivalent elevations on the windward slopes. Foehn winds can raise temperatures by as much as 14 °C (25 °F) in just a matter of hours. Switzerland, southern Germany and Austria have a warmer climate due to the Foehn, as moist winds off the Mediterranean Sea blow over the Alps. Etymology The name ''Foehn'' (german: Föhn, ) arose in the Alpine region. Originating from Latin ''(ventus) favonius'', a mild west wind of which Favonius was the Roman personification and probably transmitted by rm, favuogn or just ''fuogn'', the term was adopted as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Source (river Or Stream)
The headwaters of a river or stream is the farthest place in that river or stream from its estuary or downstream confluence with another river, as measured along the course of the river. It is also known as a river's source. Definition The United States Geological Survey (USGS) states that a river's "length may be considered to be the distance from the mouth to the most distant headwater source (irrespective of stream name), or from the mouth to the headwaters of the stream commonly known as the source stream". As an example of the second definition above, the USGS at times considers the Missouri River as a tributary of the Mississippi River. But it also follows the first definition above (along with virtually all other geographic authorities and publications) in using the combined Missouri—lower Mississippi length figure in lists of lengths of rivers around the world. Most rivers have numerous tributaries and change names often; it is customary to regard the longest t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.png "Click for more on -> List Of Nautical Terms")
