Sentences with phrase «ice scientists about»

Not exact matches

«In a future mission, we could fly through those plumes and tell a lot about the chemistry and nature of the surface» and possibly a liquid ocean below, Bob Pappalardo, a planetary scientist at NASA's Jet Propulsion Laboratory who wasn't involved in the work, told Business Insider — all without having to drill through the moon's miles - thick ice shell.

Frankly, if I wanted to worry about climate change, I would worry about global cooling again, since the sun is behaving very weakly just now, and sun - watching scientists have even dared to suggest that a reprise of the Little Ice Age is in the offing.

Rustad, a scientist with USDA Forest Service, is concerned about evidence suggesting climate change will bring severe ice storms more often.

For glaciers that extend from low to high elevation, measurements taken at the low end — the glacier's «snout» — may not tell scientists much about how the same ice sheet is behaving higher up the mountain.

From an appendectomy on the Antarctic ice sheet to the comparative luxury of the new South Pole station, scientist Vladimir Papitashvili talks about his life's work at the poles

Last year, researchers demonstrated that certain states of the crystalline material spin ice would create monopoles that rove about the crystal (New Scientist, 9 May, p 28).

The scientists reported that northeast Greenland was stable — with a zero ice mass loss — until about 2003, when summer temperatures spiked.

While most scientists were focusing on the possibility of life in Europa's ocean, he and Bada had been talking about what biochemistry might happen in the 10 - mile - thick layer of ice atop the ocean.

This year's Arctic sea ice cover currently is the sixth - lowest on modern record, a ranking that raises ongoing concerns about the speed of ice melt and the effects of ice loss on global weather patterns, geopolitical fights, indigenous peoples and wildlife, scientists said yesterday.

And that's what scientists are concerned about in Antarctica is that there is this critical point where, yes, it looks like there's still lot of ice but as temperatures continue to rise and as there is more and more rain there will be a point where lot of that ice will disappear quickly.

Water vapor and clouds may play a role The Arctic's summer ice cover hit a record low in 2007, when it dipped about 40 percent below the average ice cover recorded since 1979, when scientists began monitoring the region with satellites.

By measuring the remaining difference — the 20,000 - year old ice deep in the West Antarctic ice sheet is about 1 degree Celsius cooler than the surface — the scientists were able to estimate the original temperature based on how fast pure ice warms up.

Scientists used to think that dogs were domesticated toward the end of the Ice Age, about 14,000 years ago (SN Online: 7/22/10).

An international team of scientists has discovered new relationships between deep - sea temperature and ice - volume changes to provide crucial new information about how the ice ages came about.

«It is a very good paper which provides valuable new insights about the physical processes controlling the change in reflectivity of the Greenland ice sheet and specifically its darkening over time,» said Eric Rignot, a senior research scientist at NASA's Jet Propulsion Laboratory who studies ice sheets but was not involved with the new study.

This new map allows scientists to determine the age of large swaths of the second largest mass of ice on Earth, an area containing enough water to raise ocean levels by about 20 feet.

Scientists are interested in knowing more about ice from the Eemian period, a time from 115,000 to 130,000 years ago that was about as warm as today.

(Global average temperature fell by about a degree during the Little Ice Age, although scientists have struggled to quantify local cooling.)

Climate change and the resulting loss of sea ice during the summer have opened new hunting territory for the killer whales in the eastern Canadian Arctic, but scientists knew very little about these animals until they tapped into the traditional knowledge of Inuit hunters who shared unique firsthand descriptions of orca hunting tactics.

The study fuels a growing concern among scientists about the factors affecting the Antarctic ice sheet — namely, that warm ocean waters are helping to melt glaciers and drive greater levels of ice loss, particularly in West Antarctica.

However, a new study from a team of researchers led by University of Wisconsin - Madison Space Science and Engineering Center scientist, Claire Pettersen, describes a unique method involving cloud characteristics that could help answer some big questions about the Greenland Ice Sheet and its snowfall.

While Arrhenius appears to have been wrong about the temperature effect on the Antarctic, scientists today have found strong evidence for what they now call Arctic amplification in the North Pole, said Mark Serreze, the director of the National Snow and Ice Data Center at the University of Colorado, Boulder.

Scientists still have a great deal to learn about the ice cover around the North Pole, not least about the full meaning of the thickness of sea ice.

The scientists made this projection after evaluating current satellite data about the thickness of the ice cover.

Given what scientists know about the Red Planet's atmosphere, these clouds likely consist of either carbon dioxide or water - based ice crystals.

Many human communities want answers about the current status and future of Arctic marine mammals, including scientists who dedicate their lives to study them and indigenous people whose traditional ways of subsistence are intertwined with the fate of species such as ice seals, narwhals, walruses and polar bears.

The more data scientists can gather about Antarctic sea ice, the more they can unpick why climate models struggle to accurately predict its extent.

Although scientists have analysed gases from tiny bubbles trapped in ice cores drilled in polar ice caps, there are doubts about how closely the composition of the bubbles matches that of the atmosphere at the time they were trapped (see New Scientist, Science, 22 August).

Isaac Held, a National Oceanic and Atmospheric Administration climate scientist, said he agreed with the researchers about the «the importance of getting the ice - liquid ratio in mixed - phase clouds right,» but he doesn't agree that global climate models generally underestimate climate sensitivity.

The findings, published yesterday in the journal Science, suggest scientists still have much to learn about the factors that govern the behavior of ice sheets — knowledge that is crucial to developing more accurate projections of future sea level rise.

A new study by scientists at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California, and the University of California, Irvine, shows that while ice sheets and glaciers continue to melt, changes in weather and climate over the past decade have caused Earth's continents to soak up and store an extra 3.2 trillion tons of water in soils, lakes and underground aquifers, temporarily slowing the rate of sea level rise by about 20 percent.

Scientists are increasingly worried about the Totten Ice Shelf's vulnerability to warm ocean water

The scientists believe the subducted area was absorbed into Europa's ice shell, which may be up to 20 miles (about 30 kilometers) thick, rather than breaking through it into Europa's underlying ocean.

«People have been talking about the possible link between winds and Antarctic sea ice expansion before, but I think this is the first study that confirms this link through a model experiment,» commented Axel Schweiger, a polar scientist at the UW Applied Physics Lab.

When that Antarctic iceberg calved, scientists mobilized quickly to learn as much as possible about the remaining ice.

There were climate scientists who speculated about global cooling in the seventies and there were journalists who wrote articles about the prospect of coming ice ages.

But polar scientists say there is still much to learn about what drives the behavior of Antarctic sea ice, which is quite different than its Arctic cousin.

The warmth made daily sea ice extents average about 232,000 square miles smaller than during any May in the 38 years scientists have been gathering data using satellites.

As significant uncertainties about the thickness of the surface ice still exist, some planetary scientists have identified two possible mechanisms for how possible volcanic heat can escape to the surface from Europa's rocky mantle and be carried upward by buoyant oceanic currents.

Perhaps if Harper had not shut down climate research facilities, including the Polar research station, and muzzled Canadian climate scientists, he might have heard about research from Rutgers University (Jennifer Francis) showing Jet Stream patterns were stalling due to melting Arctic sea ice.

Students read biographies of current NASA scientists and view scientists» notebook pages, while learning about planetary features such as canyons, volcanoes, and ice.

When scientists talk about the «collapse» of an ice sheet, they mean irreversible, rapidly increased rates of recession.

And finally, what about Mark's questions (# 3) and other factors not discussed here — do all these effects re Arctic ice lead scientists to believe there is a greater and / or earlier chance (assuming we continue increasing our GHG emissions — business as usual) of melting hydrates and permafrost releasing vast stores of methane into the atmosphere than scientists believed before the study, or is the assessment of this about the same, or scientists are not sure if this study indicates a greater / lesser / same chance of this?

It will be able to map about 95 % of the ice - free oceans» topography every 10 days and help scientists monitor ocean circulation, climate change and sea level rise.

Now the question is, can the real climate scientists come forward and present the truth about global warming, or are we in for more ridiculous predictions about an ice free arctic by 2013 and the extinction of polar bears?

ICESat - 2 will add to our understanding of Arctic sea ice by measuring sea ice thickness from space, providing scientists more complete information about the volume of sea ice in the Arctic and Southern oceans.

Using these flybys, scientists at NASA, ESA, and the Italian Space Agency, have discovered important details about the icy world, including the depth of the ice shell and acidity of the subsurface ocean.

Scientists have become growingly concerned about ice shelf collapse, and in 2016, they proposed a new rule allowing for special study areas following collapse or massive calving events.

The West Antarctic ice sheet's imperiled glaciers get all the attention, but there's an even larger pile of frozen water across the continent that scientists are starting to worry about.

For six weeks every summer between 1989 and 1993, Alley and other scientists pushed columns of ice along the science assembly line, labeling and analyzing the snow for information about past climate, then packaging it to be sent for further analysis and cold storage at the National Ice Core Laboratory in Denver, Coloraice along the science assembly line, labeling and analyzing the snow for information about past climate, then packaging it to be sent for further analysis and cold storage at the National Ice Core Laboratory in Denver, ColoraIce Core Laboratory in Denver, Colorado.