Tasman River | |
---|---|
Location | |
Country | New Zealand |
Physical characteristics | |
Source | |
• location | Tasman Lake |
• coordinates | 43°42′23″S170°10′18″E / 43.7064°S 170.1717°E |
• elevation | 715 m (2,346 ft) [1] |
Mouth | |
• location | Lake Pukaki |
• coordinates | 43°54′18″S170°10′30″E / 43.905°S 170.175°E |
• elevation | 518 to 532 m (1,699 to 1,745 ft) [2] |
Length | 25 km (16 mi) [3] |
Basin features | |
Progression | Tasman River → Lake Pukaki → Pukaki River → Tekapo River → Lake Benmore → Lake Aviemore → Lake Waitaki → Waitaki River → Pacific Ocean |
Tributaries | |
• left | Gorilla Stream, Oatmeal Creek, Chop Creek, Parsons Creek, Lily Stream, Bullrock Stream, Andrews Creek, Waits Creek, Joes Creek, McLeod Creek, Micks Creek, Jollie River, Coxs Creek |
• right | Blue Stream, Hooker River, Black Birch Stream, Sawyer Stream, Birch Hill Stream, Elbow Stream, Freds Stream, Bush Stream, Slip Stream |
The Tasman River is an alpine braided river flowing through Canterbury, in New Zealand's South Island.
The river's headwaters are in Aoraki / Mount Cook National Park, where it is the outflow of the proglacial Tasman Lake. It is also fed by the glacial waters of the tributary Murchison River, from Murchison Glacier, and the short Hooker River, an outflow of the proglacial lakes of the Hooker and Mueller glaciers.
The Tasman River flows south for 25 kilometres (16 mi) through the wide flat-bottomed Tasman Valley in the Southern Alps and into the northern end of the glacial Lake Pukaki, this forming part of the ultimate headwaters of the Waitaki hydroelectric scheme.
In 2019 a report was released giving the results of a pilot study on the invertebrate biodiversity present in the Tasman River flood plain. [4]
Aoraki / Mount Cook is the highest mountain in New Zealand. Its height, as of 2014, is listed as 3,724 metres. It sits in the Southern Alps, the mountain range that runs the length of the South Island. A popular tourist destination, it is also a favourite challenge for mountain climbers. Aoraki / Mount Cook consists of three summits: from south to north, the Low Peak, the Middle Peak and the High Peak. The summits lie slightly south and east of the main divide of the Southern Alps, with the Tasman Glacier to the east and the Hooker Glacier to the southwest. Mount Cook is ranked 10th in the world by topographic isolation.
The South Island is the largest of the three major islands of New Zealand in surface area, the other being the smaller but more populous North Island and sparsely populated Stewart Island. It is bordered to the north by Cook Strait, to the west by the Tasman Sea, to the south by the Foveaux Strait and Southern Ocean, and to the east by the Pacific Ocean. The South Island covers 150,437 square kilometres (58,084 sq mi), making it the world's 12th-largest island, constituting 56% of New Zealand's land area. At low altitudes, it has an oceanic climate.
Aoraki / Mount Cook National Park is a national park located in the central-west of the South Island of New Zealand. It was established in October 1953 and takes its name from the highest mountain in New Zealand, Aoraki / Mount Cook. The area of the park is 707 km2 (273 sq mi), and it shares a border with Westland Tai Poutini National Park along the Main Divide of the Southern Alps. The national park consists of reserves that were established as early as 1885 to protect the area's significant landscape and vegetation. Glaciers cover 40% of the park, including the county's largest glacier, Haupapa / Tasman Glacier. In 1990, the park was included in the area designated as the Te Wāhipounamu World Heritage Site. The park is managed by the Department of Conservation (DOC) alongside Ngāi Tahu, the iwi who are mana whenua in the region.
In geology, a proglacial lake is a lake formed either by the damming action of a moraine during the retreat of a melting glacier, a glacial ice dam, or by meltwater trapped against an ice sheet due to isostatic depression of the crust around the ice. At the end of the last ice age about 10,000 years ago, large proglacial lakes were a widespread feature in the northern hemisphere.
The Buller River is a river in the South Island of New Zealand. The Buller has the highest flow of any river in the country during floods, though it is only the 13th longest river; it runs for 177 km (110 mi) from Lake Rotoiti through the Buller Gorge and into the Tasman Sea near the town of Westport. A saddle at 710 m (2,330 ft) separates the Buller from the Motupiko River and that is divided from the Wairau River by a 695 m (2,280 ft) saddle, both aligned along the Alpine Fault, as is the top of the Buller valley.
The Selwyn River flows through the Selwyn District of Canterbury in the South Island of New Zealand.
Lake Pukaki is the largest of three roughly parallel alpine lakes running north–south along the northern edge of the Mackenzie Basin on New Zealand's South Island. The others are Lakes Tekapo and Ōhau. All three lakes were formed when the terminal moraines of receding glaciers blocked their respective valleys, forming moraine-dammed lakes. The Alps2Ocean mountain bike trail follows the edge of Lake Pukaki for part of its length.
Tasman Glacier is the largest glacier in New Zealand, and one of several large glaciers which flow south and east towards the Mackenzie Basin from the Southern Alps in New Zealand's South Island.
Hooker Glacier is one of several glaciers close to the slopes of Aoraki / Mount Cook in the Southern Alps of New Zealand. It is not as large as its neighbour, the Tasman Glacier, measuring 11 kilometres in length.
Mackenzie District is a local government district on New Zealand's South Island, administered by the Mackenzie District Council. It is part of the larger Canterbury Region. The region takes its name from the Mackenzie Basin, an elliptical intermontane basin which covers much of inland Canterbury.
Tasman Lake is a proglacial lake formed by the recent retreat of the Tasman Glacier in New Zealand's South Island.
New Zealand contains many glaciers, mostly located near the Main Divide of the Southern Alps in the South Island. They are classed as mid-latitude mountain glaciers. There are eight small glaciers in the North Island on Mount Ruapehu.
The Hooker River is a river in the Southern Alps of New Zealand. It flows south from Hooker Lake, the glacier lake of Hooker Glacier, which lies on the southern slopes of Aoraki / Mount Cook. After 3 kilometers, it flows through Mueller Glacier Lake, gathering more glacial water, before joining the braided streams of the Tasman River, also an outflow of a glacier lake.
The Waitangitāhuna River are two rivers in the West Coast region of New Zealand's South Island. It was a single river until an avulsion in March 1967, when it became two rivers. Since then, the southern portion of the river has flowed into Lake Wahapo, while the northern section discharges into the Tasman Sea north of Ōkārito Lagoon.
The Stanley River is a river of the Tasman Region of New Zealand's South Island. It flows southeast from its sources in the Douglas and Anatoki Ranges, reaching the Waingaro River 12 kilometres west of Upper Takaka.
Mount Sefton is a mountain in the Aroarokaehe Range of the Southern Alps of New Zealand, just 12 kilometres (7.5 mi) south of Aoraki / Mount Cook. To the south lies Mount Brunner, and to the north The Footstool, both more than 400 metres (1,300 ft) shorter.
Hooker Lake is a proglacial lake that started to form in the late 1970s by the recent retreat of the Hooker Glacier. It is in the Hooker Valley, in the Aoraki / Mount Cook National Park in New Zealand's South Island, just south of Aoraki / Mount Cook.
The Hooker Valley Track is the most popular short walking track within the Aoraki / Mount Cook National Park in New Zealand. At only 5 kilometres (3.1 mi) length and gaining only about 100 m (330 ft) in height, the well formed track can be walked by tourists with a wide range of level of fitness.
The Mount Cook Range is an offshoot range of the Southern Alps of New Zealand. The range forks from the Southern Alps at the Green Saddle and descends towards Lake Pukaki, encompassing Aoraki / Mount Cook and standing adjacent to the Tasman Glacier.
The South Island, with an area of 150,437 km2 (58,084 sq mi), is the largest landmass of New Zealand; it contains about one-quarter of the New Zealand population and is the world's 12th-largest island. It is divided along its length by the Southern Alps, the highest peak of which is Aoraki / Mount Cook at 3,724 metres (12,218 ft), making it 9th-highest island, with the high Kaikōura Ranges to the northeast. There are eighteen peaks of more than 3,000 metres (9,800 ft) in the South Island. The east side of the island is home to the Canterbury Plains while the West Coast is famous for its rough coastlines such as Fiordland, a very high proportion of native bush, and Fox and Franz Josef Glaciers. The dramatic landscape of the South Island has made it a popular location for the production of several films, including The Lord of the Rings trilogy and The Chronicles of Narnia: The Lion, the Witch and the Wardrobe. It lies at similar latitudes to Tasmania, and parts of Patagonia in South America.