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Rossin jäähylly Aiheesta muualla | Navigointivalikko81°30′S, 175°00′Wlaajentamalla

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jäähyllyAntarktiksellaRanskanB-15Uuden-SeelanninRossin alusmaallajäävirtaJames Clark Rossin28. tammikuuta18411912Robert Falcon Scottille










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Rossin jäähylly




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Rossin jäähyllyn sijainti merkitty punaisella x:llä Antarktiksen kartassa


Rossin jäähylly eli Rossin jäälautta (81°30′S, 175°00′W ) on suurin jäähylly Antarktiksella. Sen ala on 487 000 km² eli suunnilleen yhtä suuri kuin Ranskan pinta-ala. Halkaisijaltaan jäähylly on noin 800 kilometriä. Jään paksuus vaihtelee noin 330 metristä 700 metriin. Suurimmat jäävuoret irtoavat täältä, kuten esimerkiksi B-15.


Suurin osa Rossin jäähyllystä sijaitsee Uuden-Seelannin vaatimalla alueella Rossin alusmaalla. Mantereelta tuleva jäävirta kasvattaa hyllyn kokoa. Jäähylly nimettiin James Clark Rossin mukaan, joka löysi sen 28. tammikuuta 1841. Ross kartoitti jäätä edestä itään päin 160°W asti.


Rossin jäähylly sai synkän maineen vuonna 1912, kun siitä tuli viimeinen leposija tutkimusmatkailija Robert Falcon Scottille ja hänen kumppaneilleen.







Rossin jäähylly, Royal Society Range taustalla, 1999 (NOAA)





Rossin jäähylly vuonna 1997



Aiheesta muualla |



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Wikimedia Commonsissa on kuvia tai muita tiedostoja aiheesta Rossin jäähylly.



  • http://www.vims.edu/bio/microbial/NBPishelf.html – Joitakin kuvia Rossin jäähyllystä

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