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How do scientists find out about the earth's past climate?
most reliable is core samples In ice warmer weather gives deepersnow per seasonal cycle, think artic ice. tree ring dating , also core samples of ocean floor sediment ;man has keep records fr 3 to 5 thousand years mostly in languages nobody speaks ,but nature has always keepamazing records
How do scientists measure the composition of the Earth's early atmosphere?
The Antarctic is one of the last unspoiled areas on earth. Air gets trapped in packed snow fall, later gets very packed, sometimes slightly melted, but not enough for the air to get out. This process has gone on for millions of years. When scientists take ice core samples, it is for the air that is trapped, deep down, where it was trapped millions of years ago. They take these samples, into a laboratory, where they carefully extract the air samples. Then they will use a gas chromatograph, IR spectrum analyzer, or other instrumentation to determine the composition of the air sample. The depth of the ice core determines the age of the earth at the time, and with the many ice core samples taken, there are many to compare it to for which to make a better determination.
Is ice pure water?
Ice from distilled water would be pure. However, everyday ice contains dissolved gasses. For instance, historic greenhouse gas levels can be measured from ice core samples from the Antarctic ice sheet because these gasses were trapped in the layers of ice.
What does a polar ice scientist do?
Study polar ice
What is an ice core?
An ice core is a sample of ice that is drilled in a cylindrical shape that allows scientists to examine what is inside the ice. The ice traps and freezes air molecules and dust which essentially allows climatic and other anomalies to be studied. This has been used to examine the process of climate change - which indicates very clear patterns of warming and cooling.
How are some ways climatologists use tree rings and ice core samples similar?
By examining tree rings and ice core samples, climatologists are able to determine the environmental and climate situation prevalent at the time the tree was growing and when the water froze.
With evidence which indicates increases in atmospheric concentrations of oxides of sulfur and nitrogen?
ice core samples
In the day after tomorrow movie why did Jack Hall take ice core samples from Antarctica?
they measure ice caps to see how quickly theyre melting waatsup
What is a sentence for core sample?
A core sample is a tubelike sample of a substance for scientific study. Core samples can be of rock, earth, plants, or even ice. Here are some sentences.The core sample showed what the earth was like millions of years ago.The scientist collected a core sample from the giant redwood tree.A core sample from the glacier might contain trapped pollen or microbes.
What are scientists trying to understand about the climate of Earth by analyzing these ice samples?
The Gasses trapped in the air bubbles of the ice in the different levels can tell them what the atmosphere was like when the ice was formed, each layer of ice represents an different year or group of years, it has been there a very long time and provides a timeline of the earths climate changes to help predict what we are going to see in the future. It takes a lot of samples to get a complete picture. Sometimes there wont be a good sample in a particular core for a given time period so multiple cores are needed.
What other clues did scientist use to learn about ice man life?
He use Weapon with a stone
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.
Does Neptune have ice?
Yes their is a great posibility it does yet man has not yet sent rovers or robots their yet by scientist best obsersations and guesses that there is ice in the inner core making it a must be that there is ice on neptune.
How do scientists find out about the earth's past climate?
most reliable is core samples In ice warmer weather gives deepersnow per seasonal cycle, think artic ice. tree ring dating , also core samples of ocean floor sediment ;man has keep records fr 3 to 5 thousand years mostly in languages nobody speaks ,but nature has always keepamazing records
How do scientists measure the composition of the Earth's early atmosphere?
The Antarctic is one of the last unspoiled areas on earth. Air gets trapped in packed snow fall, later gets very packed, sometimes slightly melted, but not enough for the air to get out. This process has gone on for millions of years. When scientists take ice core samples, it is for the air that is trapped, deep down, where it was trapped millions of years ago. They take these samples, into a laboratory, where they carefully extract the air samples. Then they will use a gas chromatograph, IR spectrum analyzer, or other instrumentation to determine the composition of the air sample. The depth of the ice core determines the age of the earth at the time, and with the many ice core samples taken, there are many to compare it to for which to make a better determination.
Is ice pure water?
Ice from distilled water would be pure. However, everyday ice contains dissolved gasses. For instance, historic greenhouse gas levels can be measured from ice core samples from the Antarctic ice sheet because these gasses were trapped in the layers of ice.
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.
