QUE SIGNIFIE ICE SHEET EN ANGLAIS
Calotte glaciaire
Une couche de glace est une masse de glace qui couvre le terrain environnant et dépasse 50 000 km2, ainsi que le glacier continental. Les seules couches de glace actuelles sont en Antarctique et au Groenland; Au cours de la dernière période glaciaire au dernier maximum glaciaire, la couche de glace de Laurentide couvrait une grande partie de l'Amérique du Nord, la nappe de glace de Weichselian couvrait le nord de l'Europe et la glace de la patagonie couvrait le sud de l'Amérique du Sud. Les feuilles de glace sont plus grandes que les plateaux de glace ou les glaciers alpins. Les masses de glace couvrant moins de 50 000 km2 sont appelées calotte glaciaire. Une calotte glaciaire alimentera généralement une série de glaciers autour de sa périphérie. Bien que la surface soit froide, la base d'une couche de glace est généralement plus chaude en raison de la chaleur géothermique. Dans les endroits, la fusion se produit et l'eau de fonte lubrifie la nappe de glace de sorte qu'elle coule plus rapidement. Ce processus produit des canaux à écoulement rapide dans la couche de glace - ce sont des flux de glace. Les couches de glace polaire actuelles sont relativement jeunes en termes géologiques.
définition de ice sheet dans le dictionnaire anglais
La définition de la calotte glaciaire dans le dictionnaire est une épaisse couche de glace recouvrant une grande partie de la terre depuis longtemps, en particulier ceux de l'Antarctique et du Groenland.
MOTS EN ANGLAIS EN RAPPORT AVEC «ICE SHEET»
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3 CITATIONS EN ANGLAIS AVEC «ICE SHEET»
Citations et phrases célèbres avec le mot
ice sheet.
We believe the ice sheet was not around all the time. It was only around during cool snaps of the climate.
As a scientist, my attention became totally focused on global warming some 15 years ago by the elegant and powerful measurements of carbon dioxide trapped in ice cores taken as much as 2 miles deep from the great East Antarctica ice sheet.
Scientists use satellites to track weather, map ice sheet melting, detect diseases, show ecosystem change... the list goes on and on. I think nearly every scientific field benefits or could benefit from satellite imagery analysis.
10 LIVRES EN ANGLAIS EN RAPPORT AVEC «ICE SHEET»
Découvrez l'usage de
ice sheet dans la sélection bibliographique suivante. Des livres en rapport avec
ice sheet et de courts extraits de ceux-ci pour replacer dans son contexte son utilisation littéraire.
1
Dynamics of the West Antarctic
Ice Sheet
' All in all this is splendid book. It brings together different viewpoints and presents a 'state of the art' account of the dynamics of the West Antarctic Ice Sheet.
C.J. van der Veen, Johannes Oerlemans,
1986
2
The West Antarctic
Ice Sheet
ANTARCTIC RESEARCH SERIES, VOLUME 77, PAGES 1-11 THE WEST
ANTARCTIC ICE SHEET AND SEA-LEVEL CHANGE R.B. Alley Environment
Institute and Department of Geosciences, The Pennsylvania State University,
University ...
3
Glacier and
Ice Sheet Sliding: Priorities for Research
Importance The mechanics of the coupling of a glacier or ice sheet to its bed is
the most important unsolved problem in the field of glacier dynamics. Abundant
geological and geophysical evidence shows that ice masses can, in the
presence ...
4
The Montana Lobe of the Keewatin
Ice Sheet
y. ,. V";. 'i;v'^Sz. were picked up by the ice as it moved westward over the earlier
drift sheet. Lying upon the drift from the mountain are fragments of crystalline rock
from the northeast, which were carried out beyond the edge of the eastern drift ...
Fred Harvey Hall Calhoun,
1906
5
The Geology of Scotland
They suggest that the growing ice sheet expanded initially most rapidly from
Highland centres and that only later was there sufficient growth of independent
ice centres in the Southern Uplands to fend off Highland ice. The northern limit of
...
6
River and Lake
Ice Engineering
Source of bearing capacity Hydrostatic pressure on the bottom of a large floating
ice sheet must equal the weight per unit area of the ice sheet and its snow cover.
If an additional load is placed on the ice, it will sink until the hydrostatic pressure
...
7
Subsurface Geologic Investigations of New York Finger Lakes: ...
The massive outpourings of icebergs from the Laurentide ice sheet needed to
deposit the Heinrich layers must involve the rapid flow of ice, and apparently
meltwater, to the margin of the ice sheet. However, the driving mechanism of
these ...
Henry T. Mullins, N. Eyles,
1996
8
Encyclopedia of the Antarctic
ice is less than that discharging from the area (i.e., the ice sheet is shrinking). Ice
sheet mass balance can be examined at different elevation levels from the
summit of drainage basins down to the terminus. It can also be considered over
large ...
9
Encyclopedia of Paleoclimatology and Ancient Environments
Cross-references Cosmogenic Radionuclides Maunder Minimum Sun-Climate
Connections BINGE-PURGE CYCLES OF ICE SHEET DYNAMICS Background
Binge-purge cycles of ice sheets are based on a hypothesis that ice sheets may ...
10
Quaternary Glaciations - Extent and Chronology: Part II: ...
At 12 ka the ice sheet was withdrawing onto land along much of the Pacific coast
but remained connected to a remnant ice cap on Vancouver Island. The south-
western corner of the ice sheet was retreating into the lower Fraser River valley, ...
J. Ehlers, P.L. Gibbard,
2004
10 ACTUALITÉS CONTENANT LE TERME «ICE SHEET»
Découvrez de quoi on parle dans les médias nationaux et internationaux et comment le terme
ice sheet est employé dans le contexte des actualités suivantes.
Storms In The Tropics Contribute To Melting Ice In The Arctic: Study …
According to their findings, the cyclonic weather system caused a lot of surface runoff, overwhelming the ice sheet's drainage system, which led ... «Tech Times, juil 15»
Sun's activity controls Greenland temperatures - Phys.org
Starting around 2025, temperatures in Greenland could increase more than anticipated and the island's ice sheet could melt faster than ... «Phys.Org, juil 15»
Final Report on the 2014 Global Climate Released … - AccuWeather
--The Greenland Ice Sheet experienced extensive melting in summer 2014. The extent of melting was above the 1981-2010 average for 90% of ... «AccuWeather.com, juil 15»
Iceberg Calving Boosts Methane Emissions - GlacierHub
Calving of glaciers in the North American ice sheet, also known as Heinrich events, released large icebergs into the North Atlantic Ocean. «GlacierHub, juil 15»
Sun's activity controls Greenland temperatures - Environmental …
Starting around 2025, temperatures in Greenland could increase more than anticipated and the island's ice sheet could melt faster than ... «environmentalresearchweb, juil 15»
Introducing the MacGyvers of Extreme Field Service
For a project on the Greenland ice sheet, that could include arranging air support via helicopters or lightweight planes, ensuring clients are ... «Field Service Digital, juil 15»
City seeks recreational facilities solutions | Rosemount Town Pages
... RAHA, called for a referendum to finance a second ice sheet and artificial turf. The other council members did not generally support that idea. «Rosemount Town Pages, juil 15»
Arctic nations bar commercial fishing around North Pole - Yahoo …
"It's clear that most of these countries are motivated by resource extraction, not protection, and see the melting of the ice sheet as an opportunity ... «Yahoo! Maktoob News, juil 15»
They Knew, They Lied: ExxonMobil and Climate Change - Truthout
Half of Greenland's ice sheet is now liquid. Pink salmon, mussels, oysters, clams and scallops are about to disappear from the menu because ... «Truth-Out, juil 15»
Report: Treat climate change as seriously as national security …
The Greenland ice sheet, Arctic ecosystems and tropical coral reefs are systems vulnerable to big rises in temperatures. Governments have ... «AG Week, juil 15»