ICESat-2 By the Numbers: 532

The video explains how Atlas lasers measure Earth's elevation by receiving photons reflected from the surface. It highlights the challenge of filtering out sunlight, which can overwhelm detectors, and describes the use of computer programs to manage this. The focus is on allowing only light at 532 nanometers to pass through, ensuring accurate data collection.

What is the primary function of the Atlas lasers?

• To detect the color of the Earth's surface

• To measure the elevation of the Earth

• To analyze the Earth's atmosphere

• To measure the temperature of the Earth

Why does Atlas need to filter out sunlight?

• Sunlight can damage the lasers

• Sunlight can overwhelm the detectors

• Sunlight can change the color of the lasers

• Sunlight can increase the temperature of the detectors

What wavelength of light does Atlas allow?

• 700 nanometers

• 600 nanometers

• 532 nanometers

• 450 nanometers

What is the role of computer programs in the Atlas system?

• To enhance the power of the lasers

• To filter out unwanted sunlight photons

• To increase the speed of data processing

• To change the wavelength of the lasers

What happens if sunlight in the 532 nanometer range is not filtered?

• It will enhance the data quality

• It will cool down the detectors

• It will have no effect on the data

• It will set off Atlas detectors