Sentences with phrase «ice samples»

To get a view on global temperatures that long ago, the researchers studied 73 sediment and polar ice samples, taken from all over the globe.

On a trip in the 1980s, the team had to bring back ice samples in water bottles because there was no way to keep them frozen.

Their food stays fresh in a freezer that is also used to store ice samples.

By taking ice samples for the last five winters and analyzing for the chlorophyll produced by algae and photosynthetic bacteria, Twiss and his team have determined that from November to April the Lake experiences great primary productivity, more so than in spring or summer.

In addition, I had the freedom to conduct my own research in the Dry Valleys, taking ice samples from the surrounding glaciers to investigate microbial biodiversity in glacier ice.

Rise and fall of the Roman Empire is exposed in lead pollution trapped in Greenland ice samples more than...

Tegler also oversees NAU's ice lab, where ice samples are grown, analyzed and added to the expanding library of data.

«Also, dating ice samples is not definitive.»

Background resistance Resistance genes occur naturally in the environment; prehistoric ice samples show TetM alongside mammoth DNA in 30,000 - year - old Alaskan permafrost.

Phoenix has eight single - use ovens that will slowly bake soil and ice samples separately to 1,800 degrees F (1,000 degrees C) and sniff the resulting vapors for evidence of water, carbon - rich compounds and sulfates.

Working with Reid Cooper, professor of Earth, environmental and planetary sciences at Brown, McCarthy loaded ice samples into a compression apparatus.

In a lab in Hutchison Hall, researchers analyze 12,000 - year - old ice samples for clues about the past and future of climate change.

The new study gathered sea ice samples near Greenland in 2014 and 2015 that the researchers then analyzed in a lab, comparing them to previously gathered cores from there and elsewhere in the Arctic.

Stable carbon isotope ratio analyses on trace methane from ice samples.

MPL, launched in 1998, was to have landed less than 600 miles (1,000 kilometers) from the planet's south pole to collect soil and ice samples for analysis and to gauge meteorological conditions.

A high - precision method for measurement of paleoatmospheric CO2 in small polar ice samples.

Ice core analyses have in fact verified a MWP in Greenland, but show no MWP in Antarctica (though, as I will show later, Antarctica is not warming yet in the current warm period, so perhaps Antarctic ice samples are not such good evidence of global warming).

Though degraded, multitudes of ancient microbial DNA fragments, some 8 million years old, were suspended inside the ice samples.

The group at Argonne is continually improving the ATTA detector, researchers there say, and they aim to perform analysis on an ice sample as small as 20 kilograms in the near future.

All the PAHs that McKay's team found in the Martian meteorite were discovered in their ice samples.

Over the weekend, Phoenix scooped up a shovel - full of ruddy dirt using its 7.7 - foot (2.4 - meter) robotic arm to deposit into its Thermal and Evolved - Gas Analyzer, a suite of tiny, single - use ovens for baking soil and ice samples to study their chemistry.

The researchers created methods based on capillary electrophoresis to process soil or ice samples and detect 17 different amino acids simultaneously.

To do so, they had also taken sea - ice samples.

One of the biggest challenges any team faces is keeping the multitudes of bacteria that live in and on our bodies, computer consoles, and lab equipment from tainting the ice samples.

The fact TEGA is starting to process some ice samples «had champagne corks popping» here, says William Boynton TEGA principal investigator from the University of Arizona.

Rogers went to great lengths to clean each ice sample before testing it.

By extracting air from the ice samples and analyzing its methane, the environmental scientist finds insights into the past, and possible future, of climate change.

Dating back an estimated 2.7 million years, this ice sample is more than 1.5 million years older than any other previously recovered and offers a rich insight into the climate of the planet millions of years ago.

I keep thinking about the extraordinary journey these ice samples have taken, and for some reason I wonder aloud if anyone has ever dropped a core.

The facility, which has some ice samples going as far back as 1958, is meant to be a permanent repository, but it's running out of room.

Spencer Weart, in his book «The discovery of Global Warming» mentions it took two decades to develop reliable methods of giving plausible results when analyzing ice cores and states «The trick was to clean an ice sample scrupulously, crush it in a vacuum, and quickly measure what came out».

[71][72] Because of the way air is trapped in ice (pores in the ice close off slowly to form bubbles deep within the firn) and the time period represented in each ice sample analyzed, these figures represent averages of atmospheric concentrations of up to a few centuries rather than annual or decadal levels.