Istmus sound

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Istmus sound
Geographical location
Istmus Sound (New Zealand)
Istmus sound
Coordinates 46 ° 2 ′  S , 166 ° 42 ′  E Coordinates: 46 ° 2 ′  S , 166 ° 42 ′  E
Region ISO NZ-STL
Country : New Zealand
region Southland
Sea access via the Preservation Inlet to the Tasman Sea
Data about the sound
entrance 500 m wide
length around 5.6 km
width Max. 1.1 km
Coastline around 15 km
Tributaries some streams (brooks)
Islands two small nameless islands less than 1 km from the entrance and numerous small islands and rocks at the end of the sound

The Istmus Sound is a fjord on the South Island of New Zealand .

geography

The approximately 5.6 km long Istmus Sound is located around 76 km west of Tuatapere on the southwest coast of the South Island. The sound has a coastline of around 15 km and is around 1.1 km at its widest point. The entrance to the sound is around 500 m wide and has access to the Tasman Sea via the adjacent Preservation Inlet . The northeastern part of the Istmus Sound is only about 126 m wide headland, which leads to a nameless, almost 7 km long peninsula, away from Long Sound . The peninsula is located between the southern part of Long Sound and Istmus Sound . The mountains surrounding the Istmus Sound rise to an altitude of over 1000  m .

geology

The Istmus Sound is in the classic sense a fjord that, like all fjords in the southwest of the South Island, was created on the one hand by glacier movements of the last glacial period and on the other hand was formed by the flooding of the valley by rising sea levels. The name sound came from the first European settlers and seafarers who called numerous valleys in the Fiordland region as sounds , a name that is actually only used for the river valleys flooded from the lake side, such as the sounds in the Marlborough Sounds in the north the south island. The seafarers, mostly of English or Welsh origin, did not know any fjords from their homeland and so they used the names they knew for the inlets, which were later no longer corrected.

See also

Individual evidence

  1. ↑ a b Topo250 maps . Land Information New Zealand , accessed March 9, 2018 .
  2. ↑ Coordinates and longitude determinations were partly made via Google Earth Version 7.1.8.3036 on March 9, 2018.
  3. ^ A b Milford Sound & Doubtful Sound . (PDF 1.1 MB) Destination Fiordland , November 2016, accessed on April 20, 2019 .
  4. ^ Section C The Marlborough Costal Environment . (PDF 3.98 MB) Marlborough District Council , June 2014, p. 34 , accessed on August 31, 2019 .