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Gordon Inlet
Gordon Inlet is an estuarine inlet, located in the Goldfields-Esperance region of Western Australia. The inlet is at the south west corner of the Fitzgerald River National Park and approximately north west of the town of Bremer Bay. The estuary is transient and is quite shallow with a high rate of evaporation so that the estuary often dries out almost completely. The water is saline with salinity levels varying from slightly less than seawater to over four times as saline. The Gairdner River flows into the inlet and discharges an average of 9.4 million cubic metres (332 million cu ft) per annum. The inlet is wave dominated and functions primarily as a result of wave energy. It has a total surface area of , the majority of which is made up of the main basin and the estuary barriers with a small area of salt marsh and intertidal flats. The main seagrass species found in the estuary is ''Ruppia maritima''. The inlet was named in 1848 by Surveyor-General of Western Australia J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Estuary
An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environments and are an example of an ecotone. Estuaries are subject both to marine influences such as tides, waves, and the influx of saline water, and to fluvial influences such as flows of freshwater and sediment. The mixing of seawater and freshwater provides high levels of nutrients both in the water column and in sediment, making estuaries among the most productive natural habitats in the world. Most existing estuaries formed during the Holocene epoch with the flooding of river-eroded or glacially scoured valleys when the sea level began to rise about 10,000–12,000 years ago. Estuaries are typically classified according to their geomorphological features or to water-circulation patterns. They can have many different names, such as bays, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salt Marsh
A salt marsh or saltmarsh, also known as a coastal salt marsh or a tidal marsh, is a coastal ecosystem in the upper coastal intertidal zone between land and open saltwater or brackish water that is regularly flooded by the tides. It is dominated by dense stands of salt-tolerant plants such as herbs, grasses, or low shrubs. These plants are terrestrial in origin and are essential to the stability of the salt marsh in trapping and binding sediments. Salt marshes play a large role in the aquatic food web and the delivery of nutrients to coastal waters. They also support terrestrial animals and provide coastal protection. Salt marshes have historically been endangered by poorly implemented coastal management practices, with land reclaimed for human uses or polluted by upstream agriculture or other industrial coastal uses. Additionally, sea level rise caused by climate change is endangering other marshes, through erosion and submersion of otherwise tidal marshes. However, recent ackn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Estuaries Of Western Australia
The estuaries of Western Australia (also known as the Inlets of Western Australia) are located along the coastline of Western Australia. The coastline can be considered in three main sections: south, west, and Kimberley. Some estuarine features carry through all three regions. Wetlands and estuaries of the south west region have very similar ecologies and occurrences of biota. South The estuary/inlet names do not necessarily relate to the names of the rivers that flow into them. (This list is along the coast from the east near Esperance to the west near Cape Leeuwin.) * Barker * Stokes Inlet * Torradup * Oldfield Estuary * Jerdacuttup * Culham Inlet * Hamersley * Dempster * Fitzgerald * St Marys * Gordon Inlet * Wellstead Estuary * Beaufort Inlet * Cheyne * Waychinicup * Normans * Taylor Inlet * Oyster Harbour * Torbay Inlet * Wilson Inlet * Parry * Irwin Inlet * Nornalup Inlet * Broke Inlet * Gardner * Warren * Donnelly * Hardy Inlet West * Harvey Estuary * Peel Inle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
London Gazette
London is the capital and List of urban areas in the United Kingdom, largest city of England and the United Kingdom, with a population of just under 9 million. It stands on the River Thames in south-east England at the head of a estuary down to the North Sea, and has been a major settlement for two millennia. The City of London, its ancient core and financial centre, was founded by the Roman Empire, Romans as ''Londinium'' and retains its medieval boundaries.See also: Independent city#National capitals, Independent city § National capitals The City of Westminster, to the west of the City of London, has for centuries hosted the national Government of the United Kingdom, government and Parliament of the United Kingdom, parliament. Since the 19th century, the name "London" has also referred to the metropolis around this core, historically split between the Counties of England, counties of Middlesex, Essex, Surrey, Kent, and Hertfordshire, which largely comprises Greater London ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Order Of St Michael And St George
The Most Distinguished Order of Saint Michael and Saint George is a British order of chivalry founded on 28 April 1818 by George IV, George IV, Prince of Wales, while he was acting as prince regent for his father, George III, King George III. It is named in honour of two military saints, Michael (archangel), Michael and Saint George, George. The Order of St Michael and St George was originally awarded to those holding commands or high position in the Mediterranean Sea, Mediterranean territories acquired in the Napoleonic Wars, and was subsequently extended to holders of similar office or position in other territories of the British Empire. It is at present awarded to men and women who hold high office or who render extraordinary or important non-military service to the United Kingdom in a foreign country, and can also be conferred for important or loyal service in relation to foreign and Commonwealth of Nations, Commonwealth affairs. Description The Order includes three class ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colonial Office
The Colonial Office was a government department of the Kingdom of Great Britain and later of the United Kingdom, first created to deal with the colonial affairs of British North America but required also to oversee the increasing number of colonies of the British Empire. Despite its name, the Colonial Office was never responsible for all Britain's Imperial territories; for example, protectorates fell under the purview of the Foreign Office, and British India was ruled by the East India Company until 1858 (the British Raj ruled the India Office as a result of the Indian Mutiny), while the role of the Colonial Office in the affairs of the Dominions changed as time passed. It was headed by the Secretary of State for the Colonies, also known more informally as the Colonial Secretary. First Colonial Office (1768–1782) Prior to 1768, responsibility for the affairs of the British colonies was part of the duties of the Secretary of State for the Southern Department and a committe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Septimus Roe
John Septimus Roe (8 May 1797 – 28 May 1878) was the first Surveyor-General of Western Australia. He was a renowned explorer, a member of Western Australia's legislative and executive councils for nearly 40 years, but also a participant in the Pinjarra massacre on 28 October 1834. Early life John Septimus Roe was born at Newbury, Berkshire on 8 May 1797. He was the seventh son of James Roe, the rector of Newbury. At 10 years of age, Roe was sent to Christ's Hospital School (which is still standing today) in London, to study for a career as a school teacher. There, he showed a great aptitude for mathematics, and was selected for training by the Mathematical School, which trained selected students for service in the Royal Navy. He was an outstanding student, and was apprenticed to the Navy at the age of 15. Naval service John Septimus Roe entered the Naval service on 11 June 1813. His first appointment was as a midshipman on , captained by Sir Christopher Cole. Over ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surveyor-General Of Western Australia
The Surveyor General of Western Australia is the person nominally responsible for government surveying in Western Australia. In the early history of Western Australia, the office of surveyor general was one of the most important public offices. The first surveyor general, John Septimus Roe, was responsible for the laying out of many townsites, including Perth and Fremantle, and played a prominent role in the politics of the day. Another surveyor general, John Forrest, became Premier of Western Australia, and later a Cabinet minister in Australia's first federal government. In modern times, the position of surveyor general has diminished in importance. It remains a statutory office, and is housed within the current agency named Landgate. List of surveyors general of Western Australia This is a list of surveyors general of Western Australia. See also * Department of Lands and Surveys, Western Australia * Surveyor Generals Corner * Surveyor General of New South Wales * Surveyo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ruppia Maritima
''Ruppia maritima'' is an aquatic plant species commonly known as beaked tasselweed, ditch grass, tassel pondweed and widgeon grass. Despite its scientific name, it is not a marine plant; is perhaps best described as a salt-tolerant freshwater species.Kantrud, H. A. (1991)Classification and Distribution - Wigeongrass (''Ruppia maritima'' L.): A literature review. U.S. Fish and Wildlife Service. The generic name ''Ruppia'' was dedicated by Linnaeus to the German botanist Heinrich Bernhard Ruppius (1689-1719) and the specific name (maritima) translates to "of the sea". Distribution It can be found throughout the world, most often in coastal areas, where it grows in brackish water bodies, such as marshes. It is a dominant plant in a great many shoreline regions. It does not grow well in turbid water or low-oxygen substrates.Kantrud, H. A. (1991)Habitat - Wigeongrass (''Ruppia maritima'' L.): A literature review. U.S. Fish and Wildlife Service. Description ''Ruppia maritima'' i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wave Energy
Wave power is the capture of energy of wind waves to do useful work – for example, electricity generation, water desalination, or pumping water. A machine that exploits wave power is a wave energy converter (WEC). Waves are generated by wind passing over the sea's surface. As long as the waves propagate slower than the wind speed just above, energy is transferred from the wind to the waves. Air pressure differences between the windward and leeward sides of a wave crest and surface friction from the wind cause shear stress and wave growth. Wave power is distinct from tidal power, which captures the energy of the current caused by the gravitational pull of the Sun and Moon. Other forces can create currents, including breaking waves, wind, the Coriolis effect, cabbeling, and temperature and salinity differences. As of 2022, wave power is not widely employed for commercial applications, after a long series of trial projects. Attempts to use this energy began in 1890 or earlier, ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gairdner River
Gairdner River is a river located in the Great Southern region of Western Australia. The river was first recorded by Surveyor General John Septimus Roe in 1848, when carrying out exploration of the area, noting that natives referred to it and its numerous branches as "Jeer-A-Mung-Up". Roe later named the same river Gairdner River, at its mouth in Gordon Inlet, not realising they were the same, after Gordon Gairdner, Senior Clerk of the Australian and Eastern Departments in the Colonial Office, later Chief Clerk of the Colonial Office and Secretary and Registrar of the Most Distinguished Order of Saint Michael and Saint George. Roe also named Gordon Inlet and Mount Gordon after Gairdner. The river originates in farm land north of the South Coastal Highway between Needilup and Jacup on the Yilgarn plateau at about above sea level. It flows in a south-easterly direction crossing the South Coast Highway east of Jerramungup then through the Fitzgerald River National Park until ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
