File Map prevailing winds on earth.png right thumb 400px The westerlies and trade winds The Westerlies ... Westerlies , are prevailing winds in the middle latitudes between 30 and 60 degrees latitude , blowing ... glossary search?id westerlies1 Westerlies. American Meteorological Society . Retrieved ... s which cross the subtropical ridge axis into the Westerlies recurve due to the increased westerly flow ... in the Southern Hemisphere . The Westerlies are strongest in the winter hemisphere and times when ... are higher over the poles. The Westerlies are particularly strong, especially in the southern ... more north south oriented, which slows the Westerlies down. The strongest westerly winds in the middle latitudes can come in the Roaring Forties , between 40 and 50 degrees latitude. The Westerlies ... of the prevailing westerlies in northern hemisphere southwest&source bl&ots C2SzvUDsje&sig dkFc55QfdoJhBCygMCVIu9u ... over the poles, the strength of the Westerlies increases, which has the effect of warming the mid ... and Meteorology. Retrieved on 2009 04 11. ref Throughout the year, the Westerlies vary in strength with the polar cyclone. As the cyclone reaches its maximum intensity in winter , the Westerlies increase in strength. As the cyclone reaches its weakest intensity in summer , the Westerlies weaken .... Ve urstofu slands. Retrieved on 2008 06 15. ref An example of the impact of the Westerlies ... work Science 298 pages 817 821 accessdate 2009 06 20 ref The Westerlies can be particularly strong ... and cloudy conditions, it is usual to refer to the Westerlies as the Roaring Forties, Furious Fifties ... Shrieking Sixties westerlies PPA86,M1 ref Impact on ocean currents Image Franklingulfstream.jpg thumb ... are weaker than those in the Southern Hemisphere due to the differences in strength between the Westerlies ... s of all types at the base of the Westerlies, both within the atmosphere and within the ocean . ref ... of the planet, where the Westerlies steer the system generally from west to east. These systems ... more details
Westerly can refer to Westerly, Rhode Island , a town in the United States The Westerlies , the prevailing winds in the middle latitudes Westerly Australian literary magazine , a literary magazine from the University of Western Australia A prevailing wind occurring at Perth, Western Australia, also known as the Fremantle Doctor See also Westerleigh disambiguation disambig ... more details
Variables of Cancer is called the Variables of Capricorn. The southern westerlies start somewhat south of South Africa. They tend to be stronger than the northern westerlies because they are mostly over ... thumb 300px right The five major ocean gyres Ocean Gyre The fact that the westerlies and trade winds ... the north which bends to the west, contributing to the trade winds. The Coriolis effect bends the westerlies ... cell . There is also a Ferrel cell over the westerlies and a polar cell over the pole. There are other ... more details
Unreferenced date December 2008 An atmospheric waveguide is an Earth s atmosphere atmospheric Fluid dynamics flow feature that improves the propagation of certain atmospheric wave s. The effect arises because wave parameters such as group velocity or vertical wavenumber depend on mean flow direction and strength. Thus, for instance, westerly wind westerlies might be a good waveguide for east ward traveling waves, but might strongly dissipation dissipate west ward traveling waves, by increasing or decreasing their vertical wavenumber, respectively. Modification of the waves group velocity will change their meridional propagation speed, directing them more geographical pole polewards or more equator wards. Category Atmosphere ... more details
Unreferenced date December 2009 In geoscience s, an annual cycle is the part of a measured quantity s fluctuation that is attributed to Earth s changing position in orbit over the course of the year. Such quantities might be influenced directly e.g. incoming solar radiation at a point at the surface or indirectly e.g. stratosphere stratospheric westerlies and polar easterlies easterlies over the winter and summer hemispheres, respectively by orbital position. The annual cycle is commonly estimated from observational data or model output by taking the average of all Januaries, all Februaries, and so forth. If the observational record is long enough and conditions are stationary i.e. there is no significant long term trend , a meaningful annual cycle will result that can be used to calculate an anomaly time series . Note that grouping data according to the months in the Gregorian calendar makes an implicit assumption that the annual cycle in question is the vernal equinox tropical year followed by that calendar. However, the annual cycle for some phenomena may be a different kind of year see the seasonal year article for discussion. DEFAULTSORT Annual Cycle Category Earth sciences Geology stub zh ... more details
Infobox Album See Wikipedia WikiProject Albums Name Murder Of Tides Type Album Artist Will Johnson musician Will Johnson Released April 2002 Genre Rock music Rock Label Undertow 2002 Murder of Tides is the first solo album by Centro Matic and South San Gabriel band South San Gabriel leader Will Johnson musician Will Johnson . It was released in 2002 as a joint venture between Johnson and his long time manager Bob Andrews at Undertow Music Collective. Track listing Murder of Tides Westerlies Commonly Linked The Riot Jack Philo Manitoba Karcher s Contacts Re run Pills River Koltolwash In a Motionless Way Tent of Total Mystery The Yellow Signals References Allmusic class album id r608044 pure url yes Allmusic album review External links http www.centro matic.com Official site Category Centro Matic albums Category 2002 albums ... more details
The quasi biennial oscillation QBO is a Quasiperiodicity quasi periodic oscillation of the equator equatorial zonal and meridional zonal wind between easterlies and westerlies in the tropical stratosphere with a mean period of 28 to 29 months. The alternating wind regimes develop at the top of the lower stratosphere and propagate downwards at about convert 1 km 1 abbr on per month until they are dissipated at the tropical tropopause . Downward motion of the easterlies is usually more irregular than that of the westerlies. The amplitude of the easterly phase is about twice as strong as that of the westerly phase. At the top of the vertical QBO domain, easterlies dominate, while at the bottom, westerlies are more likely to be found. Theory The QBO was discovered in the 1950s, but its cause remained unclear for some time. Rawinsonde soundings showed that its phase was not related to the annual cycle , as is the case for all other stratospheric circulation patterns. In the 1970s it was recognized by Richard Lindzen and James Holton that the periodic wind reversal was driven by atmospheric wave s emanating from the tropical troposphere that travel upwards and are dissipated in the stratosphere by radiative cooling . The precise nature of the waves responsible for this effect was heavily debated in recent years, however, gravity wave s have come to be seen as a major contributor. Effects Effects of the QBO include mixing of stratospheric ozone by the secondary circulation caused by the QBO, modification of monsoon precipitation, and an influence on stratospheric circulation in northern hemisphere winter the sudden stratospheric warmings . Observation of the QBO with weather balloons The Free University of Berlin FU Berlin supplies a QBO data set that comprises rawinsonde observations from Canton Island , Gan , and Singapore . The plot below shows the QBO during the 1980s. Image QBO Cycle observed.svg thumb 650px center Time&ndash height plot of monthly mean, zonal mean eq ... more details
ocean and a few tiny islands. The Kuroshio Current tends to push his ship northeast into the westerlies ..., the wider off sailing required to return. Note that the boundary between the westerlies and the trade ... northwest across the winds and currents until he found the westerlies and was blown back to Europe .... Although the sources are not clear, he may have guessed that there were southern westerlies and was trying ... westerlies and turned east. Finding no land after a number out days he turned north and reached ... west is sailing westerlies into the wind . Further north, he is sailing against the Gulf Stream . It is not clear ... home on the westerlies . He had the right route but reached the Caribbean Sea rather than China. In 1513 ... years later his pilot, Anton de Alaminos, used the Gulf Stream to push him north to the westerlies ... the Florida Current to the Gulf Steam, use it to go north to the westerlies which led directly home .... Trinidad ship One of his surviving ships tried to return east using the northern westerlies ... more details
Image Trough.jpg thumb 350px Representation of alternating troughs and ridges in upper level Westerlies for the Northern Hemisphere , with regions of convergence and divergence labeled. A trough is an elongated region of relatively low atmospheric pressure , often associated with weather front front s. Unlike fronts, there is not a universal symbol for a trough on a weather chart. The weather charts in some countries or regions mark troughs by a line. In the United States, a trough may be marked as a dashed line. In the UK, Hong Kong ref http www.hko.gov.hk cgi bin hko dwm e.pl The Hong Kong Observatory, Weather Map at 08 HKT Bot generated title ref or Fiji, ref http www.met.gov.fj aifs prods 0640.gif ref it is represented by a bold line extended from a low pressure center ref http www.hko.gov.hk wxinfo currwx flw description image trough2.png ref or between two low pressure centers ref http www.hko.gov.hk wxinfo currwx flw description image trough3.png ref in Macau ref http www.smg.gov.mo dm wxChart e chartindex.php Weather Chart Bot generated title ref or Australia ref http www.bom.gov.au cgi bin nmoc latest MSLP.pl?IDCODE IDY00050 Latest NMOC MSLP Analysis Chart Bot generated title ref , it is a dotted line. If it is not marked, troughs may still be identified as an extension of isobars away from a Pressure system low pressure center . Sometimes, the region between two high pressure centers may assume the character of a trough when there is a detectable wind shift noted at the surface. In the absence of a wind shift, the region is designated a col, akin to a geographic saddle between two mountain peaks. If a trough forms in the mid latitudes, a temperature difference between ... westerlies , troughs and ridge meteorology ridges often alternate, especially when upper level winds are in a high amplitude pattern. For a trough in the westerlies, the region just west of the trough ... move to the west from the east, while mid latitude troughs generally move with the westerlies toward ... more details
otheruses Image William Adolphe Bouguereau 1825 1905 Flora And Zephyr 1875 .jpg thumb Zephyrus, the Greek mythology Greek God male deity god of the west wind and the goddess Chloris , from an 1875 engraving by William Adolphe Bouguereau A west wind is a wind that blows from the west, in an eastward direction. In Western tradition, it has usually been considered the mildest and most favorable of the directional winds. In Greek mythology , Zephyrus was the personification of the west wind and the bringer of light spring and early summer breezes his Roman equivalent was Anemoi Favonius Favonius . In the Eros and Psyche myth of Cupid and Psyche , Zephyrus was the attendant of Cupid, who brought Psyche to his master s palace. Geoffrey Chaucer wrote of the swete breth of Zephryus, and a soft, gentle breeze may be referred to as a zephyr, as in Shakespeare s Cymbeline IV, ii They are as gentle As zephyrs blowing below the violet, Not wagging his sweet head. See also East wind Fremantle Doctor North wind South wind Westerlies Category Greek mythology Category Winds climate stub Greek myth stub io Westa vento lv Rietenis ja tr Bat r zgarlar ... more details
books?id OLMXAAAAIAAJ&pg PA246&lpg PA246&dq direction of the prevailing westerlies in northern hemisphere .... ref Westerlies and their impact Image Prevailing wind.jpg thumb 200px Effect of prevailing wind on a coniferous tree , western Turkey . Main Westerlies The westerlies or the prevailing westerlies are the prevailing ... http amsglossary.allenpress.com glossary search?id westerlies1 title Westerlies publisher American Meteorological ... glossary search?id westerlies1 Westerlies. American Meteorological Society . Retrieved on 2009 ... PA246&lpg PA246&dq direction of the prevailing westerlies in northern hemisphere southwest&source ... Together with the trade wind s, the westerlies enabled a round trip trade route for sailing ships crossing the Atlantic and Pacific oceans, as the westerlies lead to the development of strong ocean currents in both hemispheres. The westerlies can be particularly strong, especially in the southern ... Roaring Forties Shrieking Sixties westerlies PPA86,M1 ref The westerlies play an important role ... pole s towards the low pressure areas within the westerlies at high latitudes. Like trade winds and unlike the westerlies, these prevailing winds blow from the east to the west , and are often weak and irregular ... more details
File Cape Mendocino Coast.jpg 300px thumb The Cape Mendocino Coast. Cape Mendocino located on the Lost Coast entirely within Humboldt County, California , USA, is the westernmost point on the coast of California . History Cape Mendocino has been a landmark since the 16th century when Manila Galleon s followed the Westerlies prevailing westerlies across the Pacific to the Cape, then followed the coast south to Acapulco, Mexico . The first Cape Mendocino Light lighthouse was lit December 1, 1868, standing on eight prefabricated panels sent up from San Francisco, California San Francisco . Geology File Ferndale Eureka RegionHistoricSeismicity.jpg thumb left Regional Seismicity 1985 2003 The Cape Mendocino region of California s north coast is one of the most seismically active regions in the contiguous United States . Three earthquakes with epicenters nearby at Petrolia, California Petrolia and offshore west of 1992 Cape Mendocino earthquakes Cape Mendocino, 25&ndash 26 April 1992 , were outstanding, one reaching 7.2 moment magnitude scale M sub w sub ref Cite web url http earthquake.usgs.gov regional states events 1992 04 25 26.php title Cape Mendocino, California Earthquakes author USGS accessdate 2009 10 21 ref they demonstrated that the Cascadia subduction zone is both capable of producing large earthquakes and generating tsunamis. Many geologists and seismologists believe that the main shock in the 1992 sequence may be a forerunner of a much more powerful earthquake in the Pacific Northwest. ref Cite web url http sorrel.humboldt.edu geodept earthquakes shaky2 why.html title Why we have earthquakes a unique geologic setting author Kathy Moley accessdate 2009 10 21 ref Offshore of Cape Mendocino lies the Mendocino Triple Junction , a geologic triple junction where three tectonic plates come together. The San Andreas Fault , a transform boundary , runs south from the junction, separating the Pacific Plate and the North American Plate . To the north lies the Cascadia ... more details
Refimprove date December 2009 Image Map prevailing winds on earth.png thumb The westerlies and trade winds Image Corrientes oceanicas.gif thumb The ocean currents A sea lane or shipping lane is a regularly used route for ocean going and Great Lakes Ship vessels . In the time of sailing ships they were not only determined by the distribution of land masses but also the prevailing wind s, whose discovery was crucial for the success of long voyages. Sea lanes are very important for trade by sea. History Main Wind Global climatology The establishment of the North Atlantic sea lanes was inspired by the sinking of the US mail Steamboat steamer Artic by collision with the French steamer Vesta in October 1854 which resulted in the loss of over 300 lives. Lieutenant M. F. Maury of the US Navy first published a section titled Steam Lanes Across the Atlantic in his 1855 Sailing Directions proposing sea lanes along the 42 degree latitude . A number of international conferences and committees were held in 1866, 1872, 1887, 1889, and 1891 all of which left the designation of sea lanes to the principal trans Atlantic steamship companies at the time Cunard Line Cunard , White Star Line White Star , Inman Line Inman , National, and Guion lines. In 1913 1914 the International Convention for the Safety of Life at Sea International Convention for Safety of Life at Sea held in London again reaffirmed that the selection of routes across the Atlantic in both directions is left to the responsibility of the steamship companies. ref Encyclop dia Britannica, Fourteenth Edition, Volume 20 Pg 539, 1938 ref Shipping lanes came to be by analysing the prevailing winds. It is well known that the trade winds allowed ships to sail towards the west quickly, and that the westerlies allowed ships to travel to the east quickly. As such, the sea lanes are mostly chosen to take full advantage of these winds. Currents ... the overall direction of the trade winds and westerlies is still very useful. However ... more details
Image Chile.estrechodemagallanes.png thumb right 250px The islands around Cape Horn , showing False Cape Horn. False Cape Horn or Falso Cabo de Hornos is a Headlands and bays headland at the south end of Hoste island Hoste Island , 35 statute miles 56 km northwest of Cape Horn , located at coord 55 43 37 S 68 03 16 W . False Cape Horn is the southernmost point of the large island s of the Tierra del Fuego group, located close to the mainland of South America . At least 100 ships were lost in the Cape Horn area between 1850 and 1900. ref Rounding the Horn by Dallas Murphy Basic, 2004 , p. 161 ref There were three passages through Cape Horn Drake Passage , Magellan Strait , and Beagle Channel . All three were perilous, but only Drake Passage offered unlimited maneuvering room. It became the preferred route. Since the winds in the area are prevailing westerlies, False Cape Horn is a lee shore which from the west superficially resembles the real Cape Horn to the south. If the officers and crew of a ship saw land off the starboard bow to the south , there was virtually no chance of stopping or turning, or even slowing, a ship in time to avoid wrecking on the Wollaston Islands . This mistake caused several shipwrecks. ref vict false Administratively, False Cape Horn, which belongs to the Commune of Cabo de Hornos , is part of the Ant rtica Chilena Province of the Magallanes y Ant rtica Chilena Region , Chile . See also Cape Froward References Reflist div class references small note vict false http www.victory cruises.com cape horn.html Cape Horn , from Victory Cruises div Category Headlands of Chile Category Geography of Magallanes and Ant rtica Chilena Region Category Tierra del Fuego Chile geo stub de Falsches Kap Hoorn es Falso cabo de Hornos fr Faux Cap Horn ja pt Falso Cabo Horn ru ... more details
Orphan date February 2009 Unreferenced date June 2007 A Texas Norther , also known as a blue norther , is a cold front in the U.S. state of Texas , marked by a sudden drop in temperature sometimes up to 25 degrees F within one hour , heavy precipitation, and dark blue skies moving across the state. The phrase originated within Texas, where the land is very flat, perhaps making the approaching front seem darker and more threatening. Even so, there is nothing special about a Texas Norther in fact, most people do not realize that other states also experience these types of cold fronts however they are usually not named after the state. The cold front usually originates far north of the state, hence the norther, causing cool temperatures and precipitation. Because Texas lies to the west of a major body of water and to the lee of the Rocky Mountains in the zone of the westerlies during the winter, temperatures closely follow the sun, and temperatures that precede a Texas norther can reach 85 F in January and 90 F under bright sunlight in nearly calm conditions even as far north as Dallas before the cold front passes through. Winds turn sharply to a northerly direction and become very strong. Windchill due to a combination of cold temperatures and strong winds is dangerous to anyone who is caught unaware and unprepared for it. It exists only from November to early March in Texas. See also Weather front Category Severe weather and convection Category Convection climate stub de Texas Norther mk sr ... more details
Winds can be found below the Hadley cell, the Westerlies can be found beneath the Ferrel cell. Thus, strong high pressure areas which divert the prevailing westerlies, such as a Siberian high ... is not, and the telling point is in the Westerlies , which are more formally known as the Prevailing Westerlies. While the Trade Winds and the Polar Easterlies have nothing over which to prevail, their parent circulation cells having taken care of any competition they might have to face, the Westerlies ... blowing Westerlies which would ordinarily be blocked by the Walker circulation and unable to reach such intensities ... more details
from December to February, Monsoon Australia Northwest Monsoon westerlies serve to directly reduce ... to Indian pressure gradient and reduces the ITF. Interannual variability of Indian Ocean westerlies ... more details
the prevailing mid latitude westerlies . Similarly in the South Atlantic with the exception that the South ... west and the westerlies going east. The route of the Manila Galleon from Manila to Acapulco depended ... more details
in the Southern Hemisphere , aligning with the upper level Westerlies westerly flow . However, the western ... path in the northern hemisphere into the main belt of the westerlies aloft, but there has been conflicting ... more details
Unreferenced date December 2009 Commonly known as the Westcoaster , the Melbourne to Hobart Yacht Race also known as M2H commences from Port Phillip and concludes in Hobart . It is run by the Ocean Racing Club of Victoria . in 2007, for the 50th anniversary of the Rudder Cup Melb to Launcenton , the ORCV decided to abandon the West Coaster for the year and instead run an East Coaster , which would follow the Melb to Launceston course then allow Melb to Hobart yachts to cross the line of that race, then continue on to Hobart via the notorious Banks Strait between Flinders Island and the Tasmanian main land. Banks Strait has a horrid reputation for dangerous sea conditions caused by the Bass Strait westerlies going against a very strong tidal flow. The East Coaster was such a success, with around 50 or so boats contesting the race, that organisers could not ignore it. It was then decided that both an East Coaster and West Coaster would be run and this occurred in both 2008 and 2009. It has been less successful that the special event, but has nonetheless attracted a good number of boats. The West Coaster however is still considered to be the real race. Line Honours Winners 1990 Wild Thing Vic 1991 Ronstan Wild Thing Vic 1998 Longitude Vic 1999 Cadibarra 7 Sole Finisher 2000 Wild One 2001 Kontrol Vic 2002 Kontrol Vic 2003 Indec Merit 2004 Quetzalcoatl Tas 2005 Helsal II Vic 2006 No Fearr Vic 2007 Not run East Cost race run instead 2008 Shortwave NSW 2009 Jazz Player Vic Handicap Honours Winners IRC 2000 Anaconda Vic 2007 Not run East Cost race run instead 2008 Shortwave 2009 Jazz Player Handicap Honours Winners AMS 1990 Paladin Vic 1997 Island Trader Vic 1998 Longitude Vic 1999 Cadibarra 7 Vic 2000 Tevake Vic, Hobsons Bay Yacht Club, Angus Fletcher 2001 Island Trader Vic 2002 Deja Blue Vic 2003 Wavelength Vic 2004 Under Capricorn Vic 2005 Quetzalcoatl Tas 2006 A Crewed Interest Vic 2007 Not run East Cost race run instead 2008 Tevake II Vic, Hobsons Bay Yacht Club, Angus ... more details
File Donegal Bay.PNG 300px right Donegal Bay B Dh n na nGall in Irish language Irish is an inlet or bay in the northwest of Ireland . Three Counties of Ireland counties &ndash County Donegal Donegal to the north and west, County Leitrim Leitrim and County Sligo Sligo to the south &ndash have shorelines on the bay, which is bounded on the west by the Atlantic Ocean . The town of Donegal and the River Eske lie at the head of the bay. Donegal Bay is Ireland s largest bay, and also contains Ulster s highest and Europe s sixth highest sea cliff s at Slieve League , which tower 1972 ft 601 m above sea level . Donegal Bay s beach es have some of Europe s finest surfing , caused by a combination by a direct west facing location and the funnel shape of Donegal Bay the westerlies of the Atlantic Ocean get funnelled into a relatively small area , which increases the size of the swell . Rossnowlagh and Bundoran are recognised by the European surfing community as among Ireland s finest surf beaches with good facilities and excellent water quality . Towns on the Bay File Donegalbaycloseup.png right thumb 350px Donegal Bay on Ireland s west coast Ballyshannon Bundoran Coolmore Donegal Killybegs Mountcharles Mullaghmore, County Sligo Mullaghmore Rossnowlagh Tullaghan Rivers that empty into the bay River Drowes between Bundoran and Tullaghan River Erne at Ballyshannon River Eske at Donegal Town Islands in the bay Isle of St Ernan Belle s Isle Rotten Island Geographical coordinates Latitude 54 40 N 54.67 Longitude 9 04 W 9.07 NWS buoy 62093 M4 External links http www.donegalbay.com Donegal Bay Visitors site http www.ndbc.noaa.gov station page.php?station 62093 Donegal Bay Weather Buoy References http www.brilliantireland.com products inc productdetails.cfm product key 35 Slieve League cliffs coord 54 32 N 8 30 W region IE type waterbody scale 500000 display title Category Bays of County Donegal Category Bays of County Sligo Category Landforms of County Leitrim Donegal geo ... more details
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