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Il bacino di Arcachon è un bacino di acqua salata, comunicante con l'Oceano Atlantico, situato in Francia nel dipartimento della Gironda, tra le città di Arcachon e Lège-Cap-Ferret. Fa parte delle Landes della Guascogna. A differenza degli stagni delle Landes, il bacino comunica con l'Oceano Atlantico tramite un passaggio, attraverso il quale la marea oceanica sposta quotidianamente una quantità considerevole d'acqua. L'alta marea si produce regolarmente ogni 12 ore circa. Durante la bassa marea, il bacino si riduce ad un'unione di canali navigabili. I canali ed i banchi di sabbia evolvono nel tempo sotto l'influenza della marea: circa 370 milioni di metri cubi d'acqua sono scambiati quotidianamente tra bacino e oceano, con una velocità media di circa 2 m/s, portando con sé molta sabbia. I sedimenti sabbiosi mobili che caratterizzano questo bacino sono distribuiti principalmente delle correnti di marea, che formano canali e barre secondo una tipica configurazione di piana di marea. Il passaggio con l'Oceano, la cui navigazione è resa problematica dalle numerose correnti, è dominato a sud dalla duna del Pyla e a nord dal Cap Ferret. La duna è imponente e ben visibile da gran parte dei comuni che si affacciano sul bacino: Arcachon, Lège-Cap-Ferret, Arès, Andernos-les-Bains, La Teste-de-Buch, Gujan-Mestras. Al centro del bacino si trova l'île aux oiseaux (isola degli uccelli): l'isola, che non ha corrente elettrica, ospita soltanto alcune palafitte e case in legno usate dagli ostricoltori. L'estensione dell'isola aumenta considerevolmente con la bassa marea.
Il bacino è inoltre alimentato di acqua dolce dal fiume Leyre, che è all'origine della sua formazione. Il bacino attira ogni estate un numero considerevole di turisti, che vi praticano la pesca e numerosi sport nautici. La principale attività del bacino (ed anche risorsa economica, assieme al turismo) è però l'ostricoltura: la presenza regolare della marea infatti permette di costruire delle strutture in cui coltivare le ostriche che, nel corso della giornata, vengono periodicamente sommerse dall'acqua. A sud-est del bacino vi è inoltre la riserva ornitologica del Teich, parco visitabile, che offre la possibilità di osservare da vicino, nel loro habitat naturale, una gran quantità di uccelli marini e non, stanziali e migratori.
Le bassin d’Arcachon (Laca d'Arcaishon en gascon) est une lagune mésotidale située dans les Landes de Gascogne, en Gironde, entre les villes de La Teste-de-Buch au sud, Lège-Cap-Ferret à l’ouest et le delta de la Leyre à l’est. Lui seul interrompt le cordon dunaire de 250 km de la Côte d’Argent, qui s'étend de l’estuaire de la Gironde au fleuve Adour. À la différence des grands lacs landais, il est largement ouvert sur l’océan Atlantique par l’intermédiaire des passes du bassin d’Arcachon et constitue une petite mer intérieure de 155 km² à marée haute et de 40 km² à marée basse. On y pratique l’ostréiculture, la pêche et la navigation de plaisance. Depuis le 8 juin 2014, il abrite le parc naturel marin du bassin d'Arcachon. Le bassin d'Arcachon fait partie du Pays de Buch, il est situé au cœur des Landes de Gascogne, à mi-chemin entre la pointe de Grave et Capbreton, au sud-ouest du département de la Gironde à une cinquantaine de kilomètres de Bordeaux. Le bassin est de forme triangulaire, délimité par plus de 80 km de côtes plates ou dunaires boisées. Le pourtour du bassin commence, dans le sens trigonométrique (antihoraire) au Pyla-sur-Mer puis remonte au nord vers Arcachon oblique à l'est puis au sud et à nouveau à l'est au niveau de La Teste-de-Buch. Il remonte au nord-ouest au niveau du delta de la Leyre puis à partir de Lège descend au sud-ouest jusqu'au Cap-Ferret, en face du Pyla-sur-Mer. Au centre du bassin se trouve « l'île aux oiseaux » et ses cabanes tchanquées. En plus de recevoir à La Hume de l'eau en provenance du lac de Cazaux (via le canal de Cazaux), à Lège celle venant du lac de Lacanau (via le canal des Étangs) et sur tout son pourtour des eaux de ruissellement via plusieurs ruisseaux ou quelques crastes, le Bassin est aussi alimenté en eau douce par l'Eyre. Ce petit fleuve côtier de 80 km de long, issu de la forêt des landes, est à l'origine de la formation du bassin d'Arcachon. En apportant un flux continu d'eau, il contribue à empêcher l'obstruction des passes par les sables venus de l'océan. L'ouverture sur l'océan Atlantique se fait par un accès unique, les « passes », un ensemble de chenaux d'environ trois kilomètres de large permettant la circulation de l'eau entre le bassin et l'océan. La force des courants de flux et de reflux rendent délicats les franchissements de ces passes, surtout aux marées de grands coefficients pour la navigation ; des accidents mortels de marins expérimentés sont régulièrement constatés. La localisation et la structure des passes suivent une évolution cyclique dont la période est d'environ 80 ans: les passes sont en fait deux chenaux grosso modo parallèles (la Passe sud et la Passe nord) dont le tracé se déplace en direction du sud-est (du Cap-Ferret vers la dune du Pilat). Quand la passe la plus au sud atteint la plage au pied de la dune, elle se rétrécit puis « disparait » alors qu'une nouvelle passe se forme vers le nord, du côté du Cap, transformant ainsi l'ancienne « Passe nord » en une nouvelle « Passe sud ». Le balisage (bouées de navigation) est sans cesse corrigé et les cartes marines nécessitent une mise à jour permanente. À la différence des grands lacs landais (Hourtin et Carcans, Lacanau, Cazaux et Sanguinet, Biscarosse et Parentis) cet écosystème original est largement ouvert sur le golfe de Gascogne et la marée fait pénétrer et sortir deux fois par jour des masses d'eau considérables. Le bassin est partiellement isolé de l'océan par un cordon dunaire comprenant notamment le Cap Ferret, la dune du Pilat et le banc d'Arguin (classé réserve naturelle). Des bancs de sable mobiles charriés par les courants marins en modifient sans cesse le tracé et favorisent les organismes aquatiques non fixés dans les passes et sur les bancs de sable qui évoluent au cours du temps particulièrement lors de fortes tempêtes mais aussi plus simplement et inexorablement sous l'effet des marées (environ 370 millions de mètres cubes d'eau sont échangés entre le bassin et l'océan chaque jour, à une vitesse moyenne d'environ 2 m/s, emportant le sable se trouvant sur les bords des passes) et du courant marin (longeant le littoral du nord vers le sud, il charrie environ 600 000 mètres cubes de sable par an). Localement les herbiers de zostères (Zostera noltii) accueillent, accueillaient ou pourraient accueillir une riche faune ou microflore épiphyte. Le en tant que vaste zone humide et pour son caractère original, ce bassin occupe une place importante dans la Trame verte et bleue nationale, mais le bon état écologique n'y est pas atteint. En particulier des algues vertes prolifèrent anormalement et les zostères, pour des raisons mal comprises et probablement multifactorielles y sont en forte régression ce qui est préoccupant car en tant qu'herbier aquatique elles fixent le fond et sont un abri et une source de nourriture pour un grand nombre d'autres espèces. L'azote et les pesticides agricoles et urbains apportés par les pluies et eaux de ruissellement10, ainsi que les biocides des antifoolings sont suspectés. Le bassin d'Arcachon jouit d'un climat doux avec un ensoleillement important tout au long de l'année (2100 heures en moyenne sur le bassin). Les hivers y sont pluvieux mais rarement rigoureux. Il neige toutefois une ou deux fois par an en général. En revanche, les tempêtes d'automne et d'hiver soufflent souvent avec force sur le bassin, rendant les passes impraticables. On a relevé plus de 170 km/h lors du passage des tempêtes Klaus en 2009 et Martin en 1999. Les étés y sont secs et chauds, et rarement caniculaires. La brise thermique se lève en effet souvent l'après-midi, les épisodes de fortes chaleurs ayant du mal à persister dans la durée. De violents orages venus du golfe de Gascogne touchent épisodiquement le bassin (juin 1987, juillet 2003, septembre 2004), occasionnant parfois d'importants dégâts. Les températures maximales moyennes varient de 11 ou 12 °C en hiver à 25 ou 26 °C l'été. La température de la mer dans le bassin est de 13 ou 14 °C alors qu'elle est en moyenne de 10 ou 11 °C dans l'océan en hiver. En été, le bassin se réchauffe pour atteindre jusqu'à 22 ou 23 °C alors qu'elle atteint 19 à 21 °C sur l'Atlantique.
Arcachon Bay (in French, the Bassin d'Arcachon, and known locally simply as "le Bassin") is a bay of the Atlantic Ocean on the southwest coast of France, situated between the Côte d'Argent and the Côte des Landes, in the region of Aquitaine. The bay covers an area of 150 km² at high tide and 40 km² at low tide. Some of its geological features are natural preservation areas. The general shape of the Bassin d'Arcachon is that of an equilateral triangle pointing north, the southwest corner of which is open to the sea, between Cap Ferret and the town of Arcachon (more specifically, its suburb Pyla-sur-Mer), through a 3 km narrow channel (Les Passes). On the north shore is the town of Arès, then Andernos-les-Bains on the northeast. Just south of the entrance is The Great Dune of Pyla. Nearly in the middle of the bay is a very particular island: L'île aux Oiseaux (Isle of the Birds). The Bassin still has a link to the sea perhaps because of the Eyre river that runs from the Landes forest and has its mouth (Delta de l'Eyre) in its southeast corner. Otherwise the Bassin would have become blocked by the sandbanks built up by the tides. In the past, similar areas became lakes (called in French lacs or étangs) and are nowadays filled with fresh water. On the French Atlantic coast, running north-south between the Gironde estuary to the Adour river mouth, are the Lac d'Hourtin-Carcans, the Lac de Lacanau, the Étang de Cazaux et de Sanguinet, the Étang de Biscarrosse et de Parentis, the Étang d'Aureilhan, the Étang de Léon, the Étang de Soustons, the Étang Hardy, the Étang Blanc and the Étang de Garros. Arcachon Bay is the last water area that remains open to the ocean.
All navigation with Rubicon 3 is done with paper charts and paper notes. No electronics allowed.
This photo album was taken during an August sailing adventure from Bodo to Alesund, Norway. The trip was a passage making master class put on by UK-based sailing company Rubicon 3. To learn more about them, visit their web site:
The catamaran barge (background) is used to set shells that comprise the dam. The catamaran barge lifts and carries the large precast concrete shells with attached lifting frames on the Ohio River to the shell’s final set-down location.
(U.S. Army Corps of Engineers photo by Mick Awbrey)
From the City of Vancouver Public Art Registy:
Description of Work:
The large steel sculpture is set on a 26' x 28' plaza of paving stones. The sculpture consists of a 15' square of corten steel. Each side of the square is 15' long by 3' high by 3' wide. The bottom side appears to be cut apart in the middle and the two parts wrenched apart to form a gate or arch. The corten steel is designed so that the surface rust forms a protective coating. There was some adverse reaction from Kits Point residents when the work was installed. Michael Duncan, Chief Curator of the Maritime Museum at the time, called it "a bloody monstrosity." An article in the Globe and Mail teased that it could be "the world's largest paper clip." The article (Mar3, 1981) also quoted from a city planning study which read: "Vancouver's peerless natural setting is a permanent gift from nature. So massive and close are the North Shore mountains that no amount of human folly can ever obliterate them." But the controversy soon abated and the piece has weathered time and opinion. It was vandalized on July 4th, 1988, when a field of white dots were painted on its surfaces -probably as an art "intervention". The dots were soon removed. Since then, the "Gate to the Northwest Passage" has become a familiar landmark, an important place marker which stands guard at the entrance to False Creek. The area around the site is a favorite for kite flyers.
Artist Statement:
The parameters for the juried competition operated by Parks Canada were to create "a monument in Vanier Park to commemorate Captain George Vancouver," the first European to sail into Burrard Inlet, in 1792. The competition guidelines (1979) specified a sculpture made of permanent materials, "not wood," and that it should not be in the likeness of a man. The form of the work takes off from two 18th century navigational instruments: the plane table and David's quadrant. Chung Hung said that, "The objective of the sculpture is to create a symbolic image with definite visual expression, awakening an awareness in Captain George Vancouver's contribution to the world, his remarkable and meticulous surveys which included the north Pacific coast." The piece frames English Bay from the north view and the Centennial Museum from the south view. The opportunity for a sculpture was offered to the city by Hugh Faulkner, Minister of Indian and Northern Affairs at the time. The project was recommended by the Historic Sites and Monuments Board of Canada. A five-member jury headed by former parks superintendent Stuart Lefeaux selected Chung Hung's proposal from a local competition and the Parks Board approved the choice. Gordon Smith, a member of the selection panel, said that "If people think Hung's sculpture is a poor catch, they should have seen the ones that got away." It was originally to be sited at Ferguson Point in Stanley Park.
USLHS stands for United States Light House Service. Light House service merged with Coast Guard in 1939. 3200 pound anchor. Stored at US Coast Guard Station, Sturgeon Bay, Wisconsin, USA
5399-3
Osprey in action atop a Columbia River navigation marker. Shot at full optical and digital zoom, so a bit blurry, but still, I was happy to see the results of this shot on my computer. The nest was just a splotch seen in the distance
Mural on the Graham Hills Building of Strathclyde University Glasgow. One of many on the Glasgow mural trail.
Cadets from 1st Regiment, Advanced Camp participated in Land Navigation training on June 12 at Fort Knox, Ky. (Photo by Emilia Kuentz)
Texture:www.flickr.com/photos/darkwood67/
Texture: www.flickr.com/photos/skeletalmess/
Texture: www.flickr.com/photos/chrysti/
Cadet Erich Boehm, Lehigh University, checks his compass to orient himself toward his assigned point at Fort Knox, Ky. July 6, 2019. The Land Navigation Refresher gives Cadets a chance to familiarize themselves with the area they will be navigating as well as reacquaint themselves with the equipment. | Photo by Jacob Hempen, CST Public Affairs Office
You can lock your iPhone when using Apple Maps navigation.It will automatically light up screen when approaching next turn.
The canal consists of two level pounds, separated by a flight of 16 locks at Marple, which raise the canal by 209 feet (64 m) over the course of 1 mile (1.6 km).
Whilst the rest of the canal was opened to navigation by 1796, insufficient money was available to complete the necessary flight of locks to connect the two halves, and a temporary tramway was installed until such time as the locks could be completed, which finally happened in 1804.
Marple Railway Viaduct england uk britain british River Goyt RailwayMarple New Mills Hayfield english woodytyke bridge buildings house photo photography united kingdom isles
The canal consists of two level pounds, separated by a flight of 16 locks at Marple, which raise the canal by 209 feet (64 m) over the course of 1 mile (1.6 km).
Whilst the rest of the canal was opened to navigation by 1796, insufficient money was available to complete the necessary flight of locks to connect the two halves, and a temporary tramway was installed until such time as the locks could be completed, which finally happened in 1804.
kri 593 - banda aceh, tanjung priok port, jakarta, indonesia
#2nd chance
#sukamotret
#fujimoto
#fujimotret
#sukamoto
My friend Josh has a thing for pictures of people pointing. This is my tribute to him.
Taken by me with my remote control.
Me as a navigation officer - 1975
We used sextant for navigation - years before satellite and GPS.
Scanned paper photo.
GRAFENWOEHR, Germany - Staff Sgt. Lorenzo Graham, a communications technician from the U.S. Army NATO Brigade, looks for his next map point during gthe land navigation portion of U.S. Army Europe’s 2013 Best Warrior Competition here, Aug. 21. The compeition is a weeklong event that tests Soldiers’ physical stamina, leadership, technical knowledge and skill. Winners in the Soldier and Noncommissioned Officer categories of the USAREUR competition will go on to compete at the Department of the Army level. (U.S. Army photo by Sgt. Daniel Cole)
I recently met my old friend, John, for a stroll around Nottingham city centre, and a couple of beers. As usual, he took me to a couple of pubs that I had not been in before. This is The Navigation Inn, sitting beside Castle Lock, on the Nottingham Canal, just a short stroll from the city centre. Brilliant. Loved it. I will be back!
An adventure starting from where I grew up, and my family still live.
It was around 1/2 a mile from their house to the Lee Navigation...I was astounded that it was so close - we met the navigation as it went under the North Circular and this is the view heading south, so into London.
I have this picture of London being so built up....a few minutes later a big red bus came towards us on the track/road to left of shot - the depot was further down.
Our walk to to the cafe at Engine House Visitor Centre (for lunch) at Walthamstow Wetlands was a mix of the natural and urban.
We left Skippy at home as dogs are not allowed at the Walthamstow Wetlands, but he could have gone most the way along the Navigation, and there was another cafe at Stonebridge Lock, so we will have chance to take him part way another time.
Alright, students, if our speed is 235 kt, our altitude is 7680', our distance to Rwy 24 is 32.8 nm, and our arrival is in 8 min/22sec, what is our descent rate in fpm? Ha.
Rotterdam
Cruise: TB11 / 14 Day Southern Caribbean
Depart: Tampa Jan 14, 2018 / Return: Tampa Jan 28, 2018.
Neptune Suite 7030 / SA/Navigation Deck
Jan 14, 2018Tampa, Florida
Jan 15, 2018Key West, Florida
Jan 16, 2018At sea
Jan 17, 2018At sea
Jan 18, 2018San Juan, Puerto Rico
Jan 19, 2018St. Thomas, U.S. Virgin Islands
Jan 20, 2018St. John's, Antigua
Jan 21, 2018Castries, St. Lucia
Jan 22, 2018At sea
Jan 23, 2018Willemstad, Curacao
Jan 24, 2018Oranjestad, Aruba
Jan 25, 2018At sea
Jan 26, 2018Georgetown, Grand Cayman
Jan 27, 2018At sea
Jan 28, 2018Tampa, Florida
MS Rotterdam was in Freeport Bahamas dry dock from October 26 through November 3, 2017
Brief history…
On January 31, 1997 Holland America Line announced the withdrawal of the old Rotterdam (V). The 1959-built forty year old ship was retired after making twenty-nine world cruises. This date coincided with the 1992 amendments to the SOLAS 74 (Safety of Life at Sea). SOLAS is an international maritime treaty which sets minimum safety standards in the construction, equipment and operation of merchant ships. The owner of Holland America, Carnival, clearly knew that the Rotterdam didn't fit into their future plans. In January 1995 Carnival ordered a 62,000 GRT cruise ship from the Italian yard Fincantieri. The new Rotterdam would be capable of a service speed of 25 knots (28.7695 mph). With this size and speed the ship could continue the Round the World cruises and transatlantic crossings until then allotted to the old Rotterdam. The new Rotterdam was fitted with a diesel electric plant, configured around five Sulzer 16ZA40s diesel engines that develop 57,600 MegaWatt. Rotterdam VI was delivered in Venice on November 7, 1997.
The ceremony was attended by Fincantieri chairman, Corrado Antonini and Carnival Corp. honorary chairman, Ted Arison. Carnival was forced to warn shareholders that fourth quarter earnings could be cut as a consequence of the late delivery. The final ship price was $350 million. The delay was attributed manpower shortages at the Fincantieri yard of Venice-Marghera. Others cited the ship did not meet the 25 knots contractual speed in her sea trials.
Six ships have borne the name of Rotterdam. When the newest Rotterdam VI was launched (named after the city of Rotterdam, Netherlands) it was the largest, fastest and grandest of all the Rotterdams. The ship had a gleaming dark blue hull and white superstucture with twin side by side funnels. The main interior designer of the Rotterdam was F.C.J. Dingemans, of the firm VFD Interiors BV. At that time The Rotterdam was the Holland America's flagship, and felt more classic and more formal with the use of additional wood and dark colors.
Peter McHugh, president of Holland America at the time, said there was no intent to rebuild the Rotterdam V. That Rotterdam was retired on September 30, 1997 after 40 years of service. The ship was purchased by Premier Cruises and after refurbishment was known as the Rembrandt. On 12 June 2013, the Rembrandt was sold to WestCord Hotels. The ss Rotterdam is permanently moored at the Kop van Katendrecht in Rotterdam. It is a 4-star hotel and a museum with 254 bedrooms furnished in 50’s style. Peter McHugh served as President and Chief Operating Officer of the Holland America Line and Westours Inc. from January 1996 to October 1999. McHugh was also a senior manager with Pan Am, TWA, and was President of Thomas Cook, NA. The Holland America Line was founded in 1873 as the Dutch-America Steamship Company (Dutch: Nederlandsch-Amerikaansche Stoomvaart Maatschappij), a shipping and passenger line. Because it was headquartered in Rotterdam and provided service to the Americas, it became known as Holland America Line (HAL). Its headquarters are in Seattle, Washington. In 1989, HAL became a wholly owned subsidiary of Carnival Corp.
Some new features of the Rotterdam VI was an entire deck designated as the concierge level with its own lounge for the occupants of the 4 penthouse suites and 36 full suites. The Rotterdam offered Holland America's first alternative dining room - the 88-seat Odyssey restaurant. The 747-seat two level main dining room was the La Fontaine. The Rotterdam was designed to steam at the maximum of 25 knots allowing it to cover the long distances in world cruises. It's nickname was the "Fastdam". At its launch the Rotterdam was furnished with more than $2 million in antiques and art works depicting the golden age of Dutch shipping. The two-level Las Vegas style showroom was known as the Queen's Lounge. The night club/disco was the Crow's Nest. The Lido Deck included the Lido restaurant/cafeteria and the Hot Dog/Hamburger corner. The ship fuel capacity allowed the ship to cruise at full speed for up to 17 days before re-fueling. The ship has the capability of turning 300,000 gallons of seawater into freshwater every day. The builder was Fincantieri, one of Europe's largest shipbuilding groups. Fincantieri employs about 10,000 working at eight shipyards, two design centers, one research center and two production sites for mechanical components.
For its November 1997 first cruise Captain Kees Buckens piloted the Rotterdam from Barcelona to Fort Lauderdale. The ship arrived in Fort Lauderdale on December 4, 1997. Several introductory events were held hosting thousands of travel agents and past passengers. A blog from the year 2000 had this to say about Captain Kees Buckens. "Captain Kees Buckens was a hoot... from the first nights cocktail party that he hosted til most nights that he closed the Crows Nest. Professional... warm and likes to buy drinks for all. Quite a ping pong player too." Kees Buckens more recently is a lecturer and programme director at New Zealand Maritime School.
In addition to its fleet of cruise ships, Holland America also owns the Westmark hotel chain which operates in Alaska and the Yukon, and Worldwide Shore Services, which provides warehouse and logistical support for the company. HAL shares its headquarters in Seattle’s Uptown Queen Anne, Seattle, Washington district with the above mentioned subsidiaries. Finally, HAL owns “Half Moon Cay” (its own private island in the Caribbean, officially known as Little San Salvador Island); nearly all of the line’s cruises through the region spend at least a day there.
Carnival Corporation owns:
Carnival Cruise Lines (25 ships)
Princess Cruises (17 ships)
Costa Cruises (15 ships)
Holland America Line (14 ships)
AIDA (11 ships)
P&O Cruises (UK) (7 ships)
P&O Cruises (Australia) (5 ships)
Cunard (3 ships)
Seabourn (4 ships)
Fathom (1 ship)
compiled by Dick Johnson, February, 2018
richardlloydjohnson@hotmail.com