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Wairoa River (Bay Of Plenty)
The Wairoa River runs north into Tauranga Harbour at the western end of the Bay of Plenty in New Zealand's North Island. Hydroelectric power In the mid-1970s the Tauranga Joint Generation Committee proposed a hydroelectric power scheme for the Wairoa River. The newly formed Kaimai Canoe Club (established by Barry Anderson, Bill Ross, Kerry Smith and Peter Entwistle) opposed the scheme at the water rights headings, this was on the grounds that it would destroy fishing, sport and recreation for existing and future generations. A compromise was arrived at by allowing the release of water 26 days a year for whitewater recreation. The last dam diverts water around the river bed to the Ruahihi Power Station. TrustPower is now the manager of the power scheme on the river. - Kaimai hydro power scheme Whitewater r ...
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Tauranga Harbour
Tauranga Harbour is the natural tidal harbour that surrounds Tauranga CBD and the Mount Maunganui area of Tauranga, New Zealand, and which flows into the Pacific Ocean at Mount Maunganui. The harbour is effectively two flooded river systems separated from the Pacific Ocean by Matakana Island. The harbour is a large tidal estuary with an area of some 200-km2 and has a tidal range of up to 1.98m. Approximately 290,000,000 tonnes of water flow through the entrances at each tidal change. This tidal flow can generate currents of up to 7 knots within the entrance channels. The Port of Tauranga is located in the harbour and container ships and cruise ships use the harbour's waters. The Tauranga harbour entrance is the shipping channel to the Port of Tauranga, New Zealand’s largest export port. Shipping movements can take place at any time, day or night, through the main channels. The harbour is used for many recreational activities, including water skiing, kite surfing, jet skiing, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bay Of Plenty
The Bay of Plenty ( mi, Te Moana-a-Toi) is a region of New Zealand, situated around a bight of the same name in the northern coast of the North Island. The bight stretches 260 km from the Coromandel Peninsula in the west to Cape Runaway in the east. The Bay of Plenty Region, governed by the Bay of Plenty Regional Council, incorporates several large islands in the bay, in addition to the mainland area. Called ''Te Moana-a-Toi'' (the Sea of Toi) in the Māori language after Toi, an early ancestor, the name 'Bay of Plenty' was bestowed by James Cook in 1769 when he noticed the abundant food supplies at several Māori villages there, in stark contrast to observations he had made earlier in Poverty Bay. History According to local Māori traditions, the Bay of Plenty was the landing point of several migration canoes that brought Māori settlers to New Zealand. These include the ''Mātaatua'', ''Nukutere'', ''Tākitimu'', '' Arawa'' and ''Tainui'' canoes. Many of the de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Island
The North Island, also officially named Te Ika-a-Māui, is one of the two main islands of New Zealand, separated from the larger but much less populous South Island by the Cook Strait. The island's area is , making it the world's 14th-largest island. The world's 28th-most-populous island, Te Ika-a-Māui has a population of accounting for approximately % of the total residents of New Zealand. Twelve main urban areas (half of them officially cities) are in the North Island. From north to south, they are Whangārei, Auckland, Hamilton, Tauranga, Rotorua, Gisborne, New Plymouth, Napier, Hastings, Whanganui, Palmerston North, and New Zealand's capital city Wellington, which is located at the south-west tip of the island. Naming and usage Although the island has been known as the North Island for many years, in 2009 the New Zealand Geographic Board found that, along with the South Island, the North Island had no official name. After a public consultation, the board officially ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whitewater
Whitewater forms in a rapid context, in particular, when a river's gradient changes enough to generate so much turbulence that air is trapped within the water. This forms an unstable current that froths, making the water appear opaque and white. The term "whitewater" also has a broader meaning, applying to any river or creek that has a significant number of rapids. The term is also used as an adjective describing boating on such rivers, such as whitewater canoeing or whitewater kayaking. Fast rivers Four factors, separately or in combination, can create rapids: gradient, constriction, obstruction, and flow rate. Gradient, constriction, and obstruction are streambed topography factors and are relatively consistent. Flow rate is dependent upon both seasonal variation in precipitation and snowmelt and upon release rates of upstream dams. Streambed topography Streambed topography is the primary factor in creating rapids, and is generally consistent over time. Increased f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TrustPower
Manawa Energy Limited, formerly Trustpower, is a New Zealand electricity generation company that offers bespoke electricity products to commercial and industrial customers across New Zealand. Manawa Energy has 26 hydro-electricity schemes, with a total of 47 power stations and is New Zealand's fifth largest electricity generator (in MW capacity, GWh output and revenue). The company is listed on the New Zealand stock exchange, but its ownership structure is dominated by its two major shareholders: Infratil which owns 51.0% and the Tauranga Energy Consumer Trust (TECT) which owns 26.8%. The remaining 22.2% is widely held. The company changed its name to Manawa Energy following the 2022 sale of its mass market retail business, retail customer base and the Trustpower brand to Mercury Energy. History Tauranga city In 1913, the Tauranga Borough Council applied to the Department of Lands to have the Omanawa Falls vested in their body corporate for the purposes of water power generat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rapid
Rapids are sections of a river where the river bed has a relatively steep gradient, causing an increase in water velocity and turbulence. Rapids are hydrological features between a ''run'' (a smoothly flowing part of a stream) and a ''cascade''. Rapids are characterized by the river becoming shallower with some rocks exposed above the flow surface. As flowing water splashes over and around the rocks, air bubbles become mixed in with it and portions of the surface acquire a white color, forming what is called "whitewater". Rapids occur where the bed material is highly resistant to the erosive power of the stream in comparison with the bed downstream of the rapids. Very young streams flowing across solid rock may be rapids for much of their length. Rapids cause water aeration of the stream or river, resulting in better water quality. Rapids are categorized in classes, generally running from I to VI. A Class 5 rapid may be categorized as Class 5.1-5.9. While Class I rapids are eas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rivers Of New Zealand
The rivers of New Zealand are used for a variety of purposes and face a number of environmental issues. In the North Island's hill country the rivers are deep, fast flowing and most are unnavigable. Many of the rivers in the South Island are braided rivers. The navigable rivers were used for mass transport in the early history of New Zealand. Statistics The longest river in New Zealand is the Waikato River with a length of . The largest river by volume is the Clutha River / Mata-Au with a mean discharge of . The shortest river is claimed to be the Tūranganui River in Gisborne at long. Some of the rivers, especially those with wide flood plains and stop banks, have long road bridges spanning them. The Rakaia River is crossed by Rakaia Bridge, the longest bridge in New Zealand at . The third longest bridge is the Whirokino Trestle Bridge on State Highway 1 crossing the Manawatū River. Over of rivers have been mapped in New Zealand. Uses Before colonisation, Māori fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kaituna River
The Kaituna River is in the Bay of Plenty region of the North Island of New Zealand. It is the outflow from Lakes Lake Rotorua, Rotorua and Lake Rotoiti (Bay of Plenty), Rotoiti, and flows northwards for , emptying into the Bay of Plenty near Te Puke. It was the subject of a claim concerning the effluent flowing down the river from Lake Rotorua, which resulted in movement to a land treatment system. The New Zealand Ministry for Culture and Heritage gives a translation of "eat eels" for ''Kaituna''. The upper section of the Kaituna, also referred to as Okere River, offers some of the best whitewater kayaking and rafting in the world, with the Okere Falls area containing the highest commercially rafted waterfall, , in the world. It is also famous for its trout fishing. Cultural claim During the 1970s Lake Rotorua was becoming eutrophication, eutrophic under heavy nutrient loadings, leading the New Zealand Ministry of Works, Ministry of Works to propose diverting some sewage flow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rivers Of The Bay Of Plenty Region
A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of water. Small rivers can be referred to using names such as creek, brook, rivulet, and rill. There are no official definitions for the generic term river as applied to geographic features, although in some countries or communities a stream is defined by its size. Many names for small rivers are specific to geographic location; examples are "run" in some parts of the United States, "burn" in Scotland and northeast England, and "beck" in northern England. Sometimes a river is defined as being larger than a creek, but not always: the language is vague. Rivers are part of the water cycle. Water generally collects in a river from precipitation through a drainage basin from surface runoff and other sources such as groundwater recharge, springs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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