Anders Bekeken

100 Places To Remember: Ross Ice Shelf, Antarctica

Geschreven op 30-4-2010 - Erik van Erne. Geplaatst in Natuur Facebooktwitterredditpinterestlinkedintumblrmail

100places to rememberHush, be quiet! The mystic Barrier! The Ross Ice Shelf in the Antarctic is Earths largest ice shelf and forms part of its biggest ice mass. It contains a massive 70% of the fresh water on the planet. Named after James Clark Ross, the British naval officer and explorer who first set eyes on it in 1841, it is associated with dangerous adventures, heroic discoveries – and an uncertain future.

In 1911, when it was still known as the Ice Barrier, the explorers Robert F Scott and Roald Amundsen set off on their legendary race to the South Pole from opposite edges of the shelf. In his book South Pole, Amundsen records his immediate feelings on arriving at its huge face for the first time: Hush, be quiet! The mystic Barrier!

The Ross Ice Shelf is linked to the Antarctica but most of it floats on the sea. At 487,000 square kilometres it is almost as big as France. The sea-facing side is almost 600 km long, its vertical face rising to heights of 15-50 metres. Only 10% of the shelf is above water and visible; at its thickest, it plunges several hundred metres below the water line.

In the last 50 years, the average temperature on the west coast of the Antarctic has risen by almost 3ºC, ten times the average increase for the planet as a whole.

The temperature in and above the sea around the Antarctic is projected to rise again over the next 100 years. This could lead to the Ross Ice Shelf collapsing and breaking away from the continent, which would raise sea levels quite dramatically all over the world and cause further melting of the ice on the Antarctic continent.

Één Reactie

  1. Erik van Erne zegt:

    22 februari 2018 om 20:01 | Permalink

    Deep Bore Into Antarctica Finds Freezing Ice, Not Melting as Expected by National Geographic

    At the Ross Ice Shelf in Antarctica, scientists used a hot-water drill hose to create a hole through the thick ice until they reached the perpetually dark water. What they found surprised them.

    This is the Ross Ice Shelf – the biggest floating ice shelf in Antarctica. Such shelves are important because they hold back a vast amount of ice. If all such West Antarctic shelves were to collapse and spill the ice into the ocean then global sea level would rise by 10 feet. Beneath the Ross Ice Shelf is one of the least explored bits of ocean on Earth. New Zealand scientists used a hot-water drill hose to create a hole through the thick ice until they reached the perpetually dark water. They hoped to study the health and history of the shelf. Their findings surprised them. They found that the ice in the hole itself and along the base of the shelf was crystalizing and freezing rather than melting. Measurements will be taken for the next few years, to see how the Ross Ice Shelf is changing over time.

Plaats zelf een reactie:

(U heeft ruimte voor 400 tekens)

Categorieën

  • Afval (652)
  • Agenda (3.144)
  • Barack Obama (116)
  • Biologisch (118)
  • Blog Action Day (57)
  • Bouwen-Klussen (805)
  • Communicatie (375)
  • Cradle to Cradle – Circulair (494)
  • Design (233)
  • Dieren (176)
  • Donald Trump (3)
  • Duurzaam (2.289)
  • Educatie (346)
  • EEN-Armoede (253)
  • Energie en Besparing (3.356)
  • Europa (29)
  • Evenementen (175)
  • Geluid (26)
  • Gezondheid (305)
  • Goed Doel (119)
  • Green Deal (30)
  • Greenwashing (117)
  • Hergebruik-Kringloop (318)
  • Iets anders (370)
  • Int. Samenwerking (192)
  • Investeren (136)
  • Kerst (152)
  • Klimaat (1.655)
  • Licht (374)
  • Lucht (34)
  • Mensenrechten (169)
  • Milieu (748)
  • MVO (109)
  • Natuur (733)
  • Nederland (22)
  • Olympische Spelen (68)
  • Oranje (157)
  • Oud & Nieuw (125)
  • Pasen (2)
  • Sinterklaas (25)
  • Sport (221)
  • Vakantie (80)
  • Valentijn (38)
  • Verkiezingen (62)
  • Vervoer en OV (1.335)
  • Vrijwilligerswerk (16)
  • Water (301)
  • Welzijnswerk (30)
  • Recente berichten

  • Twentebad In Hengelo Krijgt 922 Zonnepanelen Op Het Dak: Op Weg Naar Aardgasvrij In 2020
  • Landelijk Klimaatstaking Op Scholen In Nederland: We’ve Got It From Here by Eco-Schools
  • Vijf Duurzame Steden In Europa: Zurich, London, Wien, Stockholm, München by Natuur&Milieu
  • Entree Awards 2019: Vijftig Genomineerde Horecabedrijven Zijn Bekend
  • Voorlichtingscampagne EnergieRealisten: Consumenten Informeren Over Energietransitie by Enexis
  • De Elektrische MG ZS-EV Comfort And Luxury SUV by MG
  • The Global SDG Awards 2019: 17 Awards To Transfrom Our World
  • Subsidie Voor Noordelijk Innovatielab Circulaire Economie (Nice) by Provincie Drenthe
  • Rotterdam Wil Meer Windparken In De Haven En Op De Noordzee
  • Blue Tech Park Las Vegas Valley, Nevada: Een Energieneutrale Stad In De Woestijn
  • Gasmonitor 2019: Nederlandse Huishoudens Gaan Massaal Elektrisch Koken by Natuur&Milieu
  • Waste2Wear Ocean Fabrics: Modieuze Textiel Uit Opgeviste Plastic Flessen
  • Duurzaamste Hotel Van Nederland: Van der Valk Leeuwarden Met BREEAM Excellent
  • De aCar: De Slimme Elektrische Mini-Truck by Evum Motors
  • Grootste Zonnedak Van België Met 27.104 Zonnepanelen Op Gebouw ArcelorMittal Gent by Eneco
  • Plattelandspioniers In Nederland by VPRO Tegenlicht
  • Overzicht Elektrische Mobiele Bouwmachines by Natuur&Milieu En BMWT
  • RoadPrinter Eco: De Elektrische Bestratingsmachine by RP Systems 
  • VM301 Greenline: De Elektrische Bestratingsmachine by Probst
  • Mobility-as-a-Service (MaaS) Onder De Loep: Keuzevrijheid En Reisadvies Op Maat by KiM
  • Links

    Milieunet op..