Ronne Ice Shelf


Ronne Ice Shelf
/roh"neuh/
an ice barrier in Antarctica, in SW Weddell Sea, bordered by Ellsworth Land on the NW and Berkner Island on the E.
[named after Finn Ronne, 1899-1980, U.S. explorer]

* * *

      large body of floating ice, lying at the head of the Weddell Sea, which is itself an indentation in the Atlantic coastline of Antarctica. More than 500 feet (150 metres) thick and extending inland for more than 520 miles (840 km), it lies immediately west of Filchner Ice Shelf, from which it is partially separated by Berkner Island. Often the names of the two ice shelves are combined as the Filchner-Ronne Ice Shelf. This name is appropriate, because they are only partly separated by Berkner Island, and the combined ice shelf originally bore the name Filchner. The Filchner-Ronne Ice Shelf has a combined area of about 163,000 square miles (422,000 square km), making it one of the two largest ice shelves on Earth. Radio-echo sounding and coring suggest that a substantial amount of the ice thickness was formed by the accretion of ice crystals from cooled seawater below. Oceanographic data, however, suggest an average net loss by subshelf melting of 11.4–11.8 inches (290–300 mm) per year. Named for Edith Ronne, wife of the American explorer Finn Ronne, the ice shelf was claimed by the United Kingdom (1908), Chile (1940), and Argentina (1942).

* * *


Universalium. 2010.

Look at other dictionaries:

  • Ronne Ice Shelf — Ron′ne Ice′ Shelf [[t]ˈroʊ nə[/t]] n. geg geo an ice barrier in Antarctica, in SW Weddell Sea, bordered by Ellsworth Land on the NW and Berkner Island on the E …   From formal English to slang

  • Ronne Ice Shelf — /roh neuh/ an ice barrier in Antarctica, in SW Weddell Sea, bordered by Ellsworth Land on the NW and Berkner Island on the E. [named after Finn Ronne, 1899 1980, U.S. explorer] …   Useful english dictionary

  • Ronne Ice Shelf — geographical name area of shelf ice Antarctica in Weddell Sea …   New Collegiate Dictionary

  • Filchner-Ronne Ice Shelf — The Filchner Ronne ice shelf is in Antarctica bordering the Weddell Sea.The seaward side of the Filchner Ronne ice shelf is divided into Eastern (Filchner) and the larger Western (Ronne) sections by Berkner Island. The whole ice shelf covers some …   Wikipedia

  • Ice shelf — An ice shelf is a thick, floating platform of ice that forms where a glacier or ice sheet flows down to a coastline and onto the ocean surface. Ice shelves are found in Antarctica, Greenland and Canada only. The boundary between the floating ice… …   Wikipedia

  • Ice shelf — Barrière de glace Principales barrières de glace de l Antarctique      Barrière de Ross (472 960 km²) …   Wikipédia en Français

  • Filchner Ice Shelf — /filk neuhr, filkh / an ice barrier in Antarctica, in the SE Weddell Sea, bordered on the W by Berkner Island. * * * ▪ geological feature, Antarctica       large body of floating ice, lying at the head of the Weddell Sea, which is itself an… …   Universalium

  • Amery Ice Shelf — The Amery Ice Shelf (coord|69|45|S|71|0|E|) is a broad ice shelf at the head of Prydz Bay between the Lars Christensen Coast and Ingrid Christensen Coast. It is part of Mac Robertson Land. The name Cape Amery was applied to a coastal angle mapped …   Wikipedia

  • Bach Ice Shelf — (coord|72|0|S|72|0|W|) is an ice shelf which is irregular in shape and 45 miles (72 km) in extent, occupying an embayment in the south part of Alexander Island entered between Berlioz Point and Rossini Point. A minor embayment in this position… …   Wikipedia

  • Ice rise — An ice rise is a clearly defined elevation of the otherwise totally flat ice shelf, typically dome shaped and rising 100 to 200 meters above the surrounding ice shelf. An ice rise forms where the ice shelf touches the rocky seabed because of an… …   Wikipedia


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.