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GPS·C
GPS·C, short for ''GPS Correction'', was a Differential GPS data source for most of Canada maintained by the Canadian Active Control System, part of Natural Resources Canada. When used with an appropriate receiver, GPS·C improved real-time accuracy to about 1–2 meters, from a nominal 15 m accuracy. Real-time data was collected at fourteen permanent ground stations spread across Canada, and forwarded to the central station, "NRC1", in Ottawa for processing. Visiting the external webpage for this service on 2011-11-04, there is only a note saying that the service had been discontinued on 2011-04-01. There is a PDF link on that page to possible alternatives. CDGPS GPS·C information was broadcast Canada-wide on MSAT by the CDGPS, short for ''Canada-Wide DGPS Correction Service''. CDGPS required a separate MSAT receiver, which output correction information in the RTCM format for input into any suitably equipped GPS receiver. The need for a separate receiver made it less cost-effe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wide Area Augmentation System
The Wide Area Augmentation System (WAAS) is an air navigation aid developed by the Federal Aviation Administration to augment the Global Positioning System (GPS), with the goal of improving its accuracy, integrity, and availability. Essentially, WAAS is intended to enable aircraft to rely on GPS for all phases of flight, including precision approaches to any airport within its coverage area.Federal Aviation Administration (FAAFAQ for WAAS/ref> It may be further enhanced with the Local Area Augmentation System (LAAS) also known by the preferred ICAO term Ground-Based Augmentation System (GBAS) in critical areas. WAAS uses a network of ground-based reference stations, in North America and Hawaii, to measure small variations in the GPS satellites' signals in the western hemisphere. Measurements from the reference stations are routed to master stations, which queue the received Deviation Correction (DC) and send the correction messages to geostationary WAAS satellites in a timely ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Differential GPS
Differential Global Positioning Systems (DGPSs) supplement and enhance the positional data available from global navigation satellite systems (GNSSs). A DGPS for GPS can increase accuracy by about a thousandfold, from approximately to . DGPSs consist of networks of fixed position, ground-based reference stations. Each reference station calculates the difference between its highly accurate known position and its less accurate satellite-derived position. The stations broadcast this data locally—typically using ground-based transmitters of shorter range. Non-fixed (mobile) receivers use it to correct their position by the same amount, thereby improving their accuracy. The United States Coast Guard (USCG) and the Canadian Coast Guard (CCG) each run DGPSs in the United States and Canada on longwave radio frequencies between and near major waterways and harbors. The USCG's DGPS was named NDGPS (Nationwide DGPS) and was jointly administered by the Coast Guard and the U.S. Departmen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fredericton, New Brunswick
Fredericton (; ) is the capital city of the Canadian province of New Brunswick. The city is situated in the west-central portion of the province along the Saint John River, which flows west to east as it bisects the city. The river is the dominant natural feature of the area. One of the main urban centres in New Brunswick, the city had a population of 63,116 and a metropolitan population of 108,610 in the 2021 Canadian Census. It is the third-largest city in the province after Moncton and Saint John. An important cultural, artistic, and educational centre for the province, Fredericton is home to two universities, the New Brunswick College of Craft and Design, and cultural institutions such as the Beaverbrook Art Gallery, the Fredericton Region Museum, and The Playhouse, a performing arts venue. The city hosts the annual Harvest Jazz & Blues Festival, attracting regional and international jazz, blues, rock, and world artists. Fredericton is also an important and vibrant c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Global Positioning System
The Global Positioning System (GPS), originally Navstar GPS, is a satellite-based radionavigation system owned by the United States government and operated by the United States Space Force. It is one of the global navigation satellite systems (GNSS) that provides geolocation and time information to a GPS receiver anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites. It does not require the user to transmit any data, and operates independently of any telephonic or Internet reception, though these technologies can enhance the usefulness of the GPS positioning information. It provides critical positioning capabilities to military, civil, and commercial users around the world. Although the United States government created, controls and maintains the GPS system, it is freely accessible to anyone with a GPS receiver. The GPS project was started by the U.S. Department of Defense in 1973. The first prototype spacecraft was lau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yellowknife, Northwest Territories
Yellowknife (; Dogrib: ) is the capital, largest community, and only city in the Northwest Territories, Canada. It is on the northern shore of Great Slave Lake, about south of the Arctic Circle, on the west side of Yellowknife Bay near the outlet of the Yellowknife River. Yellowknife and its surrounding water bodies were named after a local Dene tribe, who were known as the "Copper Indians" or "Yellowknife Indians", today incorporated as the Yellowknives Dene First Nation. They traded tools made from copper deposits near the Arctic Coast. Its population, which is ethnically mixed, was 19,569 per the 2016 Canadian Census. Of the eleven official languages of the Northwest Territories, five are spoken in significant numbers in Yellowknife: Dene Suline, Dogrib, South and North Slavey, English, and French. In the Dogrib language, the city is known as ''Sǫǫ̀mbak’è'' (, "where the money is"). Modern Yellowknives members can be found in the adjoining, primarily Indigenous com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Winnipeg, Manitoba
Winnipeg () is the capital and largest city of the province of Manitoba in Canada. It is centred on the confluence of the Red and Assiniboine rivers, near the longitudinal centre of North America. , Winnipeg had a city population of 749,607 and a metropolitan population of 834,678, making it the sixth-largest city, and eighth-largest metropolitan area in Canada. The city is named after the nearby Lake Winnipeg; the name comes from the Western Cree words for "muddy water" - “winipīhk”. The region was a trading centre for Indigenous peoples long before the arrival of Europeans; it is the traditional territory of the Anishinabe (Ojibway), Ininew (Cree), Oji-Cree, Dene, and Dakota, and is the birthplace of the Métis Nation. French traders built the first fort on the site in 1738. A settlement was later founded by the Selkirk settlers of the Red River Colony in 1812, the nucleus of which was incorporated as the City of Winnipeg in 1873. Being far inland, the local c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whitehorse, Yukon
Whitehorse () is the capital of Yukon, and the largest city in Northern Canada. It was incorporated in 1950 and is located at kilometre 1426 (Historic Mile 918) on the Alaska Highway in southern Yukon. Whitehorse's downtown and Riverdale areas occupy both shores of the Yukon River, which rises in British Columbia and meets the Bering Sea in Alaska. The city was named after the White Horse Rapids for their resemblance to the mane of a white horse, near Miles Canyon, before the river was dammed. Because of the city's location in the Whitehorse valley and relative proximity to the Pacific Ocean, the climate is milder than comparable northern communities such as Yellowknife. At this latitude, winter days are short and summer days have up to about 19 hours of daylight. Whitehorse, as reported by ''Guinness World Records'', is the city with the least air pollution in the world. As of the 2021 Canadian census, the population was 28,201 within city boundaries and 31,913 in the cens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schefferville, Quebec
Schefferville is a town in the Provinces and territories of Canada, Canadian province of Quebec. Schefferville is in the heart of the Naskapi and Innu territory in northern Quebec, less than 2 km (1¼ miles) from the border with Labrador on the north shore of Knob Lake. It is located within the Caniapiscau Regional County Municipality and has an area of . Schefferville completely surrounds the autonomous Innu community of Matimekosh, Quebec, Matimekosh, and it abuts the small community of Lac-John Reserve. Both of the latter communities are First Nations Innu reserves. Schefferville is also close to the Naskapi reserved land of Kawawachikamach (Naskapi reserved land), Kawawachikamach. The isolated town is not connected to the provincial road network but is accessible by airplane via the Schefferville Airport or by train. Schefferville is the northern terminus of Tshiuetin Rail Transportation (formerly operated by the Quebec North Shore and Labrador Railway) with service to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calgary, Alberta
Calgary ( ) is the largest city in the western provinces and territories of Canada, Canadian province of Alberta and the largest metro area of the three Canadian Prairies, Prairie Provinces. As of 2021, the city proper had a population of 1,306,784 and a metropolitan population of 1,481,806, making it the List of the largest municipalities in Canada by population, third-largest city and List of census metropolitan areas and agglomerations in Canada, fifth-largest metropolitan area in Canada. Calgary is situated at the confluence of the Bow River and the Elbow River in the south of the province, in the transitional area between the Rocky Mountain Foothills and the Canadian Prairies, about east of the front ranges of the Canadian Rockies, roughly south of the provincial capital of Edmonton and approximately north of the Canada–United States border. The city anchors the south end of the Statistics Canada-defined urban area, the Calgary–Edmonton Corridor. Calgary's economy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Priddis, Alberta
Priddis is a hamlet in Alberta, Canada within Foothills County. It is located in the foothills of the Canadian Rockies at an elevation of . The hamlet is located southwest of the intersection of the Cowboy Trail (Highway 22) and Highway 22X, approximately west of Calgary's city limits. The hamlet is located in Census Division No. 6 and in the federal riding of Macleod. It was named for Charles Priddis, who homesteaded along the Fish Creek in 1886.Aphrodite Karamitsanis. Place Names of Alberta Volume 2: Southern Alberta Demographics The population of Priddis according to the 2003 municipal census conducted by Foothills County is 79. See also *List of communities in Alberta The province of Alberta, Canada, is divided into ten types of Local government in Canada, local governments – urban municipalities (including List of cities in Alberta, cities, List of towns in Alberta, towns, List of villages in Alberta, vil ... * List of hamlets in Alberta References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ottawa, Ontario
Ottawa (, ; Canadian French: ) is the capital city of Canada. It is located at the confluence of the Ottawa River and the Rideau River in the southern portion of the province of Ontario. Ottawa borders Gatineau, Quebec, and forms the core of the Ottawa–Gatineau census metropolitan area (CMA) and the National Capital Region (NCR). Ottawa had a city population of 1,017,449 and a metropolitan population of 1,488,307, making it the fourth-largest city and fourth-largest metropolitan area in Canada. Ottawa is the political centre of Canada and headquarters to the federal government. The city houses numerous foreign embassies, key buildings, organizations, and institutions of Canada's government, including the Parliament of Canada, the Supreme Court, the residence of Canada's viceroy, and Office of the Prime Minister. Founded in 1826 as Bytown, and incorporated as Ottawa in 1855, its original boundaries were expanded through numerous annexations and were ultimately ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dartmouth, Nova Scotia
Dartmouth ( ) is an urban community and former city located in the Halifax Regional Municipality of Nova Scotia, Canada. Dartmouth is located on the eastern shore of Halifax Harbour. Dartmouth has been nicknamed the City of Lakes, after the large number of lakes located within its boundaries. On April 1, 1996, the provincial government amalgamated all the municipalities within the boundaries of Halifax County into a single-tier regional government named the Halifax Regional Municipality (HRM). Dartmouth and its neighbouring city of Halifax, the town of Bedford and the Municipality of the County of Halifax were dissolved. The city of Dartmouth forms part of the urban core of the larger regional municipality and is officially designated as part of the "capital district" by the Halifax Regional Municipality. At the time that the City of Dartmouth was dissolved, the provincial government altered its status to a separate community to Halifax; however, its status as part of the metrop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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