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River Derwent, Tasmania
The River Derwent, also known as timtumili minanya in palawa kani, is a significant river and tidal estuary in Tasmania, Australia. It begins its journey as a freshwater river in the Central Highlands at Lake St Clair, descending over across a distance of more than . At the settlement of New Norfolk in the Derwent Valley its waters become brackish, flowing through Hobart, the capital city of Tasmania, its seawater estuary eventually empties into Storm Bay and the Tasman Sea. Historically, the banks of the Derwent were covered by forests and frequented by Aboriginal Tasmanians. With the arrival of European settlers, the area saw agricultural development and the construction of dams for hydro-electricity generation during the 20th century. Today, the Derwent's catchment area is characterised by agriculture, forestry, and hydropower generation. It serves as a vital source of water for irrigation and urban supply, notably providing a significant portion of Hobart's water ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mouth (river)
A river mouth is where a river flows into a larger body of water, such as another river, a lake/reservoir, a bay/gulf, a sea, or an ocean. At the river mouth, sediments are often deposited due to the slowing of the current, reducing the carrying capacity of the water. The water from a river can enter the receiving body in a variety of different ways. The motion of a river is influenced by the relative density of the river compared to the receiving water, the rotation of the Earth, and any ambient motion in the receiving water, such as tides or seiches. If the river water has a higher density than the surface of the receiving water, the river water will plunge below the surface. The river water will then either form an underflow or an interflow within the lake. However, if the river water is lighter than the receiving water, as is typically the case when fresh river water flows into the sea, the river water will float along the surface of the receiving water as an overflow. Along ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plenty River (Tasmania)
The Plenty River is a perennial river of the Port Phillip catchment, located in the north-eastern Greater Melbourne region of the Australian state of Victoria. Course and features The Plenty River rises in the forested slopes of Mount Disappointment, northwest of . The river flows generally south, joined by three minor tributaries, before reaching its confluence with the Yarra River southeast of . The river descends over its course. The river is impounded by the Toorourrong Reservoir and is the source of Melbourne's first major water supply reservoir, the Yan Yean Reservoir, completed in 1857. Along the lower reaches of the river, both the Plenty River Trail and the Rosanna Golf Club can be located. See also * Plenty, Victoria * Lower Plenty, Victoria Lower Plenty is a suburb of Melbourne, Victoria, Australia, 16 km north-east from Melbourne's Central Business District, located within the City of Banyule local government area. Lower Plenty recorded a population ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brackish
Brackish water, sometimes termed brack water, is water occurring in a natural environment that has more salinity than freshwater, but not as much as seawater. It may result from mixing seawater (salt water) and fresh water together, as in estuaries, or it may occur in brackish fossil aquifers. The word comes from the Middle Dutch root '' brak''. Certain human activities can produce brackish water, in particular civil engineering projects such as dikes and the flooding of coastal marshland to produce brackish water pools for freshwater prawn farming. Brackish water is also the primary waste product of the salinity gradient power process. Because brackish water is hostile to the growth of most terrestrial plant species, without appropriate management it can be damaging to the environment (see article on shrimp farms). Technically, brackish water contains between 0.5 and 30 grams of salt per litre—more often expressed as 0.5 to 30 parts per thousand (‰), which is a spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Derwent Valley, Tasmania
The Derwent Valley is a river valley and geographic area located in southern Tasmania, Australia. The largest town is New Norfolk, with other smaller towns spread across the area. The Derwent Valley area had a population of 10,942 in 2021. Commencing at Lake St Clair and spanning to the state capital of Hobart, the River Derwent receives contributions from numerous tributaries and plays a role in Tasmania's intricate hydroelectric system at certain points. Renowned for its agricultural output, the Derwent Valley was initially settled by British colonists during the 1800s. Prior to colonisation, the area was inhabited by the Leenowwenne peoples of the Big River district. Economy The economy of the Derwent Valley is diverse, with a blend of agriculture (specifically horticulture and viticulture), tourism, small businesses, and local industries contributing to the region's economic activities. The hop industry in the Derwent Valley has held considerable importance as a prim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Norfolk
New Norfolk ( ; Aboriginal Tasmanians#Big River, Leenowwenne/palawa kani: ''Wulawali'') is a river bank, riverside town located on the Derwent River (Tasmania), River Derwent in southeastern Tasmania, Australia. Established in 1807, it is Tasmania’s fourth-oldest European settlement and ranks as the List of towns and cities in Australia by year of settlement, twelfth oldest in Australia. Initially founded by evacuees from Norfolk Island, New Norfolk has a population of 6,153 as of 2021 and serves as the main township of the Derwent Valley, Tasmania, Derwent Valley region. It lies northwest of Hobart, along the Lyell Highway, and is encompassed within the Greater Hobart statistical area. Historically, New Norfolk’s economy has been shaped by agriculture, especially Hops#Cultivation and harvest, hop farming, and the timber industry. The Boyer Mill, a major paper producer, is now the sole manufacturer of newsprint, magazine, and book paper in Australia. Recent years have seen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake St Clair, Tasmania
Lake St Clair or ''leeawuleena'' is a natural freshwater lake located in the Central Highlands area of Tasmania, Australia. The lake forms the southern end of the Cradle Mountain-Lake St Clair National Park. It has an area of approximately , and a maximum depth of , making it Australia's deepest lake. The lake is fed by Narcissus River, Cuvier River, and Hamilton Creek and marks the start of the River Derwent. The locality of Lake St Clair is in the local government areas of Central Highlands (24%), Meander Valley (12%), and West Coast (64%). The southern end of the lake is about north-west of the town of Hamilton. Geology Lake St Clair was formed through glacial erosion, along with the surrounding river valleys. History Lake St Clair is located on the edge of the Big River Tasmanian Aboriginal nation, and there is evidence that they hunted on the surrounding button grass plains. Numerous small quarries and campgrounds are located nearby, with the closest dated site pu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freshwater
Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. The term excludes seawater and brackish water, but it does include non-salty mineral-rich waters, such as chalybeate springs. Fresh water may encompass frozen and meltwater in ice sheets, ice caps, glaciers, snowfields and icebergs, natural precipitations such as rainfall, snowfall, hail/ sleet and graupel, and surface runoffs that form inland bodies of water such as wetlands, ponds, lakes, rivers, streams, as well as groundwater contained in aquifers, subterranean rivers and lakes. Water is critical to the survival of all living organisms. Many organisms can thrive on salt water, but the great majority of vascular plants and most insects, amphibians, reptiles, mammals and birds need fresh water to survive. Fresh water is the water resource that is of the most and immediate use to humans. Fresh water is n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tasmania, Australia
Tasmania (; palawa kani: ''Lutruwita'') is an island States and territories of Australia, state of Australia. It is located to the south of the Mainland Australia, Australian mainland, and is separated from it by the Bass Strait. The state encompasses the main island of Tasmania, the List of islands by area#Islands, 26th-largest island in the world, and the List of islands of Tasmania, surrounding 1000 islands. It is Australia's smallest and least populous state, with 573,479 residents . The List of Australian capital cities, state capital and largest city is Hobart, with around 40% of the population living in the Greater Hobart area. Estimated resident population, 30 June 2017. Tasmania is the most decentralised state in Australia, with the lowest proportion of its residents living within its capital city. Tasmania's main island was first inhabited by Aboriginal Australians, Aboriginal peoples, who today generally identify as Palawa or Pakana. It is believed that Abori ... [...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 ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tide
Tides are the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the Moon (and to a much lesser extent, the Sun) and are also caused by the Earth and Moon orbiting one another. Tide tables can be used for any given locale to find the predicted times and amplitude (or " tidal range"). The predictions are influenced by many factors including the alignment of the Sun and Moon, the phase and amplitude of the tide (pattern of tides in the deep ocean), the amphidromic systems of the oceans, and the shape of the coastline and near-shore bathymetry (see '' Timing''). They are however only predictions, the actual time and height of the tide is affected by wind and atmospheric pressure. Many shorelines experience semi-diurnal tides—two nearly equal high and low tides each day. Other locations have a diurnal tide—one high and low tide each day. A "mixed tide"—two uneven magnitude tides a day—is a third regular category. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palawa Kani
Palawa kani is a constructed language created by the Tasmanian Aboriginal Centre as a composite Tasmanian languages, Tasmanian language, based on reconstructed vocabulary from the limited accounts of the various languages once spoken by the Aboriginal Tasmanians, Aboriginal people of what is now Tasmania (palawa kani: ). The centre wishes to restrict the availability of the language until it is established in the Aboriginal Tasmanian community and claims copyright. The Declaration on the Rights of Indigenous Peoples, United Nations Declaration on the Rights of Indigenous Peoples (UNDRIP) is used to support this claim to copyright as it declares that indigenous people have the right to control their "cultural heritage, traditional knowledge, and traditional cultural expressions" and that states must "recognise and protect the exercise of these rights". However, the declaration is legally non-binding and languages cannot receive copyright protection in many countries, including Au ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australian Government
The Australian Government, also known as the Commonwealth Government or simply as the federal government, is the national executive government of Australia, a federal parliamentary constitutional monarchy. The executive consists of the prime minister, cabinet ministers and other ministers that currently have the support of a majority of the members of the House of Representatives (the lower house) and also includes the departments and other executive bodies that ministers oversee. The current executive government consists of Anthony Albanese and other ministers of the Australian Labor Party (ALP), in office since the 2022 federal election. The prime minister is the head of the federal government and is a role which exists by constitutional convention, rather than by law. They are appointed to the role by the governor-general (the federal representative of the monarch of Australia). The governor-general normally appoints the parliamentary leader who commands the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
