Abstract
Tracking changes in Arctic sea ice is an important way to understand how the Arctic is changing. This article explains how sensors on satellites can be used to track sea ice change, by measuring the energy given off by objects on earth. We will also explain some of the limitations of this method and describe other ways to track sea ice from old whaling ship records or from working with indigenous coastal communities. Used together, all of these methods can help us get a more complete picture of changing Arctic sea ice.
Highlights
Tracking changes in Arctic sea ice is an important way to understand how the Arctic is changing
Less sea ice a ects the number of tiny plants, called ice algae, that live in the ice
Clouds in the sky do not give out much microwave energy, and this makes it easy to “see through” the clouds to find sea ice using satellite equipment that can detect passive microwaves
Summary
International Arctic Research Center, University of Alaska Fairbanks, Fairbanks, AK, United States. AGE: Tracking changes in Arctic sea ice is an important way to understand how the Arctic is changing. This article explains how sensors on satellites can be used to track sea ice change, by measuring the energy given o by objects on earth. We will explain some of the limitations of this method and describe other ways to track sea ice from old whaling ship records or from working with indigenous coastal communities. All of these methods can help us get a more complete picture of changing Arctic sea ice
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