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Where do scientists obtain ice cores from?
Glaciers and/or the Arctic/Antarctic ice caps.
Why do scientists study ice cores?
When ice freezes it can freeze gas and other material inside of it and some ice may have been there from thousands of years ago and scientists may want to find out how much carbon dioxide was in the atmosphere then etc.
What are ice cores for climate analysis drawn from?
The cores are drilled from the ice itself - ice sheets in Antarctica and Greenland.
How are growth rings and ice cores useful in determining the ages of geologic events?
Geologists have learned to use growth rings in shells, as well as rhythmic layering in sediments and in glacial ice, to date events numerically back through recent Earth history.
Why do scientist use ice cores?
to find out what the composition of the atmosphere was
Where do scientists obtain ice cores from?
Glaciers and/or the Arctic/Antarctic ice caps.
Why are ice cores good indicators of past climate?
Ice cores contain tiny bubbles that contain a sample of the atmosphere from that time period. By studying the ice bubbles, it is possible to reconstruct the composition of the atmosphere at that time and thus the climate.
How do tree rings and ice cores help scientist understand how Earth has changed over time?
Scientist drill into ice and remove ice cores for study. Scientist analynze air trapped in the ice to learn how the atmosphere has changed. Scientists can develop an accurate history of overall weather patterns over time.
How do scientists learn about the climate in Antarctica thousands of years ago?
Ice cores are useful for scientists who want to learn about the climate in Antarctica thousands of years ago.
Why do scientists study ice cores?
When ice freezes it can freeze gas and other material inside of it and some ice may have been there from thousands of years ago and scientists may want to find out how much carbon dioxide was in the atmosphere then etc.
What are ice cores for climate analysis drawn from?
The cores are drilled from the ice itself - ice sheets in Antarctica and Greenland.
Why is jack hall taking ice core samples from antarctica?
Jack Hall was studying the greenhouse gases in ice cores from Antarctica because runaway greenhouse gases are causing global warming.
How many countries are in Antarctica?
There are none because nobody lives there except for a few scientists studying the ice.
In antarctica scientists study environmental changes that occurred over tousands of years by taking.?
Generally, the data source you're thinking of is ice cores.
Scientists are able to accurately determine the atmospheric composition from thousands to hundreds of thousands of years ago by what means?
analysing cores of ice and rock formations
Has anyone ever tried to bring back ice from antarctica?
Ice cores taken by scientists to study the health of planet earth are returned under refrigeration to scientific laboratories on other continents.
Why are scientists drilling into the Antarctic ice?
Ice cores drilled in Antarctica -- and in many other ice sheets throughout the world -- can be analyzed in the lab for the atmospheric contents present during the period when the ice froze. These data give scientists treasure troves of data that have to do with climate and climate change over tens of thousands of years of Earth's atmospheric history.
