NASA | Intro to LIDAR - 2D Version

The video discusses the challenges of measuring mountain heights on other planets compared to Earth. It introduces LIDAR technology, which uses laser pulses from satellites to measure distances and create 3D models of terrain. LIDAR is versatile, used for mapping landscapes, studying Earth's forests, ice caps, and atmospheres, and analyzing planetary features without physical exploration.

What is one method mentioned for estimating mountain heights on other planets?

• Using a ruler

• Taking 3D pictures from a satellite

• Climbing the mountain

• Using a compass

What technology do NASA scientists use to create 3D models of planetary landscapes?

• Radar

• Sonar

• LIDAR

• Infrared

How does LIDAR measure the distance between the instrument and the ground?

• By using magnetic fields

• By using sound waves

• By using radio waves

• By using laser pulses

Which of the following is NOT an application of LIDAR technology?

• Measuring the height of Earth's forests

• Studying the composition of Earth's atmosphere

• Tracking the movement of tectonic plates

• Monitoring changes in ice cap heights

What can LIDAR help scientists study in Earth's atmosphere?

• The wind speed

• The color of the sky

• The composition and structure

• The temperature