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Leith Saddle
350px, Leith Saddle near Dunedin, New Zealand Leith Saddle is a saddle between the sources of the Water of Leith and the Waitati River, approximately halfway between Dunedin's northern suburb of Pine Hill and the outlying settlement of Waitati. The saddle is a strategic point where the Dunedin Northern Motorway, part of State Highway 1 traverses a fragile alpine forest. Proposed road works to straighten a dangerous corner here conflict with conservation values. Water supply pipelines, and popular tramping and cycling routes also converge at the saddle. The Water of Leith's source is 100 metres to the south of Leith Saddle, at a height of 380 metres above sea level.Hamel, A. (2008). ''Dunedin tracks and trails.'' Dunedin: Silver Peaks Press. The Leith Saddle Track is a 3.5 hour climb through native cloud forest to Swampy Spur and Swampy Summit with links to other walkways in the Silverpeaks and Dunedin's hills. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leith Saddle
350px, Leith Saddle near Dunedin, New Zealand Leith Saddle is a saddle between the sources of the Water of Leith and the Waitati River, approximately halfway between Dunedin's northern suburb of Pine Hill and the outlying settlement of Waitati. The saddle is a strategic point where the Dunedin Northern Motorway, part of State Highway 1 traverses a fragile alpine forest. Proposed road works to straighten a dangerous corner here conflict with conservation values. Water supply pipelines, and popular tramping and cycling routes also converge at the saddle. The Water of Leith's source is 100 metres to the south of Leith Saddle, at a height of 380 metres above sea level.Hamel, A. (2008). ''Dunedin tracks and trails.'' Dunedin: Silver Peaks Press. The Leith Saddle Track is a 3.5 hour climb through native cloud forest to Swampy Spur and Swampy Summit with links to other walkways in the Silverpeaks and Dunedin's hills. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metal (road)
A gravel road is a type of unpaved road surfaced with gravel that has been brought to the site from a quarry or stream bed. They are common in less-developed nations, and also in the rural areas of developed nations such as Canada and the United States. In New Zealand, and other Commonwealth countries, they may be known as metal roads. They may be referred to as "dirt roads" in common speech, but that term is used more for unimproved roads with no surface material added. If well constructed and maintained, a gravel road is an all-weather road. Characteristics Construction Compared to sealed roads, which require large machinery to work and pour concrete or to lay and smooth a bitumen-based surface, gravel roads are easy and cheap to build. However, compared to dirt roads, all-weather gravel highways are quite expensive to build, as they require front loaders, dump trucks, graders, and roadrollers to provide a base course of compacted earth or other material, sometimes m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fluoridation
Water fluoridation is the controlled adjustment of fluoride to a public water supply solely to reduce tooth decay. Fluoridated water contains fluoride at a level that is effective for preventing cavities; this can occur naturally or by adding fluoride. Fluoridated water operates on tooth surfaces: in the mouth, it creates low levels of fluoride in saliva, which reduces the rate at which tooth enamel demineralizes and increases the rate at which it remineralizes in the early stages of cavities. Typically a fluoridated compound is added to drinking water, a process that in the U.S. costs an average of about $ per person-year. Defluoridation is needed when the naturally occurring fluoride level exceeds recommended limits. In 2011, the World Health Organization suggested a level of fluoride from 0.5 to 1.5 mg/L (milligrams per litre), depending on climate, local environment, and other sources of fluoride. Bottled water typically has unknown fluoride levels. Tooth decay rema ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ross Creek Reservoir
The Ross Creek Reservoir is an artificial lake in Dunedin, New Zealand. One of the oldest artificial lakes in the country, and the oldest water supply reservoir still in use in the country, it was created in the 1860s to provide water for the city of Dunedin, at that time in the middle of rapid expansion due to the Otago goldrush. Designed by engineer Ralph Donkin and supervising builder David Proudfoot, the reservoir was opened in 1867 as the Royal Albert Reservoir, but the name was unpopular and it has been known as the Ross Creek Reservoir for over a century. The reservoir, dams, and picturesque valve tower have a New Zealand Historic Places Trust Level I classification. The reservoir is located in a heavily wooded valley in the suburb of Glenleith, four kilometres north of the city centre. Fed by a small stream, the Ross Creek — a tributary of the Water of Leith — it is held behind two small dams, 23 metres and 10 metres in height. The base of the larger dam is 95 metre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leith Valley
Leith Valley is a suburb, valley, and general area of the New Zealand city of Dunedin, located to the northwest of the city centre. To differentiate the name of the valley from that of the suburb, the former is usually referred to as ''the'' Leith Valley, the latter simply as Leith Valley. The valley itself As its name suggests, it is the valley of the Water of Leith, a long stream which flows from the slopes of Mount Cargill south through the northern suburbs of Dunedin. The valley starts close to a saddle, Pigeon Flat, between it and the valley of the Waitati River, which is crossed by the Dunedin Northern Motorway. The motorway follows the flank of Mount Cargill's spur Pine Hill, which forms the northern boundary of the valley. The southern boundary is formed by Maori Hill, the northernmost part of a long ridge which forms a crescent around central Dunedin, culminating at Lookout Point in the city's southwest. The valley starts steeply in bush-clad countryside, before wideni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carbon Monoxide
Carbon monoxide (chemical formula CO) is a colorless, poisonous, odorless, tasteless, flammable gas that is slightly less dense than air. Carbon monoxide consists of one carbon atom and one oxygen atom connected by a triple bond. It is the simplest molecule of the oxocarbon family. In coordination complexes the carbon monoxide ligand is called carbonyl. It is a key ingredient in many processes in industrial chemistry. The most common source of carbon monoxide is the partial combustion of carbon-containing compounds, when insufficient oxygen or heat is present to produce carbon dioxide. There are also numerous environmental and biological sources that generate and emit a significant amount of carbon monoxide. It is important in the production of many compounds, including drugs, fragrances, and fuels. Upon emission into the atmosphere, carbon monoxide affects several processes that contribute to climate change. Carbon monoxide has important biological roles across phylogenetic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carbon Dioxide
Carbon dioxide (chemical formula ) is a chemical compound made up of molecules that each have one carbon atom covalently double bonded to two oxygen atoms. It is found in the gas state at room temperature. In the air, carbon dioxide is transparent to visible light but absorbs infrared radiation, acting as a greenhouse gas. It is a trace gas in Earth's atmosphere at 421 parts per million (ppm), or about 0.04% by volume (as of May 2022), having risen from pre-industrial levels of 280 ppm. Burning fossil fuels is the primary cause of these increased CO2 concentrations and also the primary cause of climate change.IPCC (2022Summary for policy makersiClimate Change 2022: Mitigation of Climate Change. Contribution of Working Group III to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA Carbon dioxide is soluble in water and is found in groundwater, lakes, ice caps, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Zealand State Highway Network
The New Zealand state highway network is the major national highway network in New Zealand. Nearly 100 roads in the North and South Islands are state highways. All state highways are administered by the NZ Transport Agency. The highways were originally designated using a two-tier system, national (SH 1 to 8) and provincial, with national highways having a higher standard and funding priorities. Now all are state highways, and the network consists of SH 1 running the length of both islands, SH 2 to 5 and 10 to 59 in the North Island, and SH 6 to 8 and 60 to 99 in the South Island, numbered approximately north to south. State highways are marked by red shield-shaped signs with white numbering (shields for the former provincial highways were blue). Road maps usually number state highways in this fashion. Of the total state highway network, New Zealand currently has of motorways and expressways with grade-separated access and they carry ten percent of all New Zealand traffic. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orokonui Ecosanctuary
thumb Orokonui Ecosanctuary, called Te Korowai o Mihiwaka in Māori, is an ecological island wildlife reserve developed by the Otago Natural History Trust in the Orokonui Valley between Waitati and Pūrākaunui, New Zealand, to the north of central Dunedin. History and planning Formation of the trust The idea of a sanctuary near Dunedin was first discussed in 1982 by New Zealand cartoonist Burton Silver and a few friends.'The undefeated champion of a wildlife haven', p28, '' Otago Daily Times'' The group made a proposal in July 1983 to convert a Dunedin fertiliser factory into a giant aviary. The proposal was later abandoned but inspired the formation in August 1983 of a charitable trust, the Otago Natural History Trust. Their initial proposal for a sanctuary at Orokonui lapsed and the group disbanded for a while until 1995, when the Karori Wildlife Sanctuary opened in Wellington. This gave the idea renewed impetus and a remaining trust member, Ralph Allen revived the prop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Libocedrus Bidwillii
''Libocedrus'' is a genus of five species of coniferous trees in the cypress family Cupressaceae, native to New Zealand and New Caledonia. The genus is closely related to the South American genera ''Pilgerodendron'' and ''Austrocedrus'', and the New Guinean genus ''Papuacedrus'', both of which are included within ''Libocedrus'' by some botanists. These genera are rather similar to the Northern Hemisphere genera ''Calocedrus'' and ''Thuja'': in earlier days, what is now ''Calocedrus'' was sometimes included in ''Libocedrus''. They are much less closely related, as recently confirmed (Gadek et al. 2000). The generic name means "teardrop cedar", apparently referring to drops of resin. The leaves are scale-like, 3–7 mm long, in apparent whorls of four (actually opposite decussate pairs, but not evenly spaced apart, instead with the successive pairs closely then distantly spaced). The cones are 8–20 mm long, and have just 2 pairs of moderately thin, erect scales, ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Libocedrus
''Libocedrus'' is a genus of five species of coniferous trees in the cypress family Cupressaceae, native to New Zealand and New Caledonia. The genus is closely related to the South American genera ''Pilgerodendron'' and '' Austrocedrus'', and the New Guinean genus '' Papuacedrus'', both of which are included within ''Libocedrus'' by some botanists. These genera are rather similar to the Northern Hemisphere genera ''Calocedrus'' and ''Thuja'': in earlier days, what is now ''Calocedrus'' was sometimes included in ''Libocedrus''. They are much less closely related, as recently confirmed (Gadek et al. 2000). The generic name means "teardrop cedar", apparently referring to drops of resin. The leaves are scale-like, 3–7 mm long, in apparent whorls of four (actually opposite decussate pairs, but not evenly spaced apart, instead with the successive pairs closely then distantly spaced). The cones are 8–20 mm long, and have just 2 pairs of moderately thin, erect scales, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leith Saddle Cloudy
Leith (; gd, Lìte) is a port area in the north of the city of Edinburgh, Scotland, founded at the mouth of the Water of Leith. In 2021, it was ranked by ''Time Out'' as one of the top five neighbourhoods to live in the world. The earliest surviving historical references are in the royal charter authorising the construction of Holyrood Abbey in 1128 in which it is termed ''Inverlet'' (Inverleith). After centuries of control by Edinburgh, Leith was made a separate burgh in 1833 only to be merged into Edinburgh in 1920. Leith is located on the southern coast of the Firth of Forth and lies within the City of Edinburgh Council area; since 2007 it has formed one of 17 multi-member wards of the city. History As the major port serving Edinburgh, Leith has seen many significant events in Scottish history. First settlement The earliest evidence of settlement in Leith comes from several archaeological digs undertaken in The Shore area in the late 20th century. Amongst the finds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
