NASA | Landsat Image Mosaic of Antarctica

The video explores the challenges and advancements in studying Antarctica, highlighting the use of the Landsat image mosaic (Lima) to provide detailed imagery of the continent. It covers the geography, ice features, and the dynamics of glaciers, emphasizing the continent's extreme conditions. The video also discusses unique features like blue ice and the opportunities for research provided by remote sensing technology.

What is the primary purpose of the Landsat Image Mosaic of Antarctica (LIMA)?

• To provide a detailed view of Antarctica from space

• To assist in landing planes on the ice

• To measure the temperature of Antarctica

• To track the movement of penguins

Which of the following best describes the size of Antarctica?

• Smaller than Australia

• Roughly the size of the United States and Mexico combined

• Twice the size of Europe

• Half the size of Africa

What is a significant feature of the terrain beneath the Antarctic ice sheet?

• It is entirely flat

• It consists of mountains, plains, and ocean basins

• It is mostly desert

• It is covered with dense forests

How do glaciers in Antarctica primarily form?

• By the movement of tectonic plates

• From volcanic activity

• By the accumulation and compression of snow over thousands of years

• Through the melting and refreezing of ocean water

What causes the blue color in some Antarctic ice?

• The presence of minerals

• The presence of algae

• The absorption of red light by larger ice crystals

• The reflection of the sky