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A 180-Million-Year Record of Sea Level and Ice Volume Variations from Continental Margin and Deep-Sea Isotopic Records
180-Million-Year Record Sea Level and Ice Volume Variations Continental Margin Deep-Sea Isotopic Records
2015/7/9
The geologic record provides constraints on the rates, amplitudes, and mechanisms controlling globally averaged (eustatic) and relative (eustatic plus subsidence/uplift) changes of sea level on variou...
Land Ice and Sea Level Rise:A Thirty-Year Perspective
Land Ice Sea Level Rise Thirty-Year Perspective
2015/7/9
The present-day assessment of contributions to sea level rise from glaciers and ice sheets depends to a large degree on new technologies that allow efficient and precise detection of change in otherwi...
Automorphic forms are generalizations of periodic functions; they are functions on a group that
are invariant under a discrete subgroup. A natural way to arrange this invariance is by averaging.
Eis...
Strait Through The Ice examines the geopolitical ramifications of the opening of the Northwest Passage due to global warming. The film offers viewers stunning vistas of this territory, as it follows t...
Study finds sudden shift in “forcing” led to demise of Laurentide ice sheet
forcing led to demise Laurentide ice sheet
2015/7/13
A new study has found that the massive Laurentide ice sheet that covered Canada during the last ice age initially began shrinking through calving of icebergs, and then abruptly shifted into a new regi...
New study: Iceberg influx into Atlantic during ice age raised tropical methane emissions
Iceberg influx into Atlantic ice age tropical methane emissions
2015/6/18
A new study shows how huge influxes of fresh water into the North Atlantic Ocean from icebergs calving off North America during the last ice age had an unexpected effect – they increased the productio...
New study shows Antarctic ice shelf is thinning from above and below（图）
Antarctic ice shelf above below
2015/5/25
The Larsen C Ice Shelf—whose neighbours Larsen A and B, collapsed in 1995 and 2002—is thinning from both its surface and beneath, according to an international study published in the journal The ...
On thin ice: Combined Arctic ice observations show decades of loss（图）
On thin ice Combined Arctic ice decades of loss
2015/3/18
It’s no surprise that Arctic sea ice is thinning. What is new is just how long, how steadily, and how much it has declined. University of Washington researchers compiled modern and historic measuremen...
Two Lakes Beneath the Ice in Greenland, Gone Within Weeks
Two Lakes Beneath the Ice Greenland Gone Within Weeks
2015/3/4
Researchers who are building the highest-resolution map of the Greenland Ice Sheet to date have made a surprising discovery: two lakes of meltwater that pooled beneath the ice and rapidly dr...
Scientists drilling first deep ice core at the South Pole（图）
Scientists deep ice core at the South Pole
2015/3/4
This winter, when many people’s imaginations were fixed on the North Pole, a small group of scientists has been working on the other side of the planet. In round-the-clock daylight and frigid temperat...
Melting of glacial ice will probably raise the sea level around the globe, but how fast this melting will happen is uncertain. Greenland is especially pivotal in the study of melting ice sheets and ri...
RECONSTRUCTING PAST ANTARCTIC ICE FLOW PATHS IN THE ROSS EMBAYMENT, ANTARCTICA USING SAND PETROGRAPHY, PARTICLE SIZE AND DETRITAL ZIRCON PROVENANCE
Provenance Antarctica zircons Till
2015/1/16
Tills for this study were analyzed from sites in East Antarctica (EA), West Antarctica (WA) and along a transect in the Ross Sea. Particle size, sand petrography, and detrital zircons were used to pro...
ROCK, TILL, AND ICE: A PROVENANCE STUDY OF THE BYRD GLACIER AND THE CENTRAL AND WESTERN ROSS SEA, ANTARCTICA
Glacial Geology Byrd Glacier Ross Sea Provenance
2015/1/16
Petrography of the sand fraction, particle size analysis, and detrital zircon U/Pb isotope data, and pebble count data were collected from Byrd Glacier moraines and central/western Ross Sea till in or...
Provenance Study of Reedy Glacier and West Antarctic Ice Stream Tills
Antarctica Ice Stream Till Reedy Glacier
2015/1/16
InJanuary2007,26samplesoftillfrom6differentmorainesalongtheReedy
Glacier,EastAntarcticawerecollectedwiththegoalofdifferentiatingbetweenthese
samplesandtillcollectedfromthebaseoftheWhillans,Kamb,andB...
On a tropical island, fossils reveal the past – and possible future – of polar ice
On a tropical island, fossils reveal the past possible future polar ice
2015/1/20
The balmy islands of Seychelles couldn’t feel farther from Antarctica, but their fossil corals could reveal much about the fate of polar ice sheets.About 125,000 years ago, the average global temperat...