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7 Cryosphere
Pages 58-63

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From page 58...
... tainty, but if the unexpectedly rapid shrinkage continues, For the first time, satellite data revealed the extent of low-lying coasts around the world -- including New the ice stream network, leading to the discovery of new Orleans, South Florida, and much of Bangladesh -- could ice streams and the ice stream tributaries (Joughin et al. face inundation within a couple of centuries rather than 1999)
From page 59...
... Satellite observations have revolutionized this thinking One of the central questions in climate change and cryo- by allowing scientists to monitor precise ice sheet elevation, sphere research is how the warming climate will affect the ice velocity, and overall mass. Satellite images revealed that sheets because the amount of continental ice and melt water in fact the overall mass is declining (Luthcke et al.
From page 60...
... For many reasons, observing trends in sea ice reliably has been possible only with the advent of satellite observa The discoveries of accelerating ice loss from Antarctica tions. Navigating the remote and frozen seas off Antarctica and Greenland and the importance of ice sheet dynamics in or in the Arctic to obtain in situ measurements of sea ice their mass balances rest on measurements by a suite of satellite extent is treacherous, and sea ice extent is highly variable and airborne sensors using novel techniques (Bindschadler in time and space due to wind advection and localized meltet al.
From page 61...
... Two thousand square kilometers of the Larsen Ice Shelf disintegrated in just 2 days. SOURCE: National Snow and Ice Data Center, University of Colorado.
From page 62...
... The changes, a complete global glacier inventory is being Arctic sea-ice decreases are statistically significant, with a trendline developed to keep track of the current extent as well as the slope of −38,200 ± 2,000 km2/year, and have contributed to much rates of change of the world's glaciers. Coordinated by the concern about the warming Arctic climate and the potential effects National Snow and Ice Data Center, the Global Land Ice on the Arctic ecosystem.
From page 63...
... In the other insets the green lines indicate glacier outlines in 1943: (c) decrease in glacier size through climate change and direct anthropogenic impact, (d)


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