How can a satellite "see" water vapor in the atmosphere?
A)The satellite is capable of sensing the wavelength of radiation typically emitted by water vapor.
B)It can't see vapor - it can only identify places where vapor is condensing.
C)It estimates vapor based on the temperature of the atmosphere.
D)It measures solar radiation reflecting off of the water vapor.

Question

Quizplus · Accepted Answer

Satellites can detect the presence of water vapor in the atmosphere by sensing the wavelength of radiation that is typically emitted by water vapor. These sensors are often referred to as microwave radiometers, and they measure the natural radiation emitted by the Earth's surface and atmosphere at microwave frequencies. Water vapor molecules have a unique microwave signature, which makes it possible to identify their presence and measure their concentration.

How Can a Satellite "See" Water Vapor in the Atmosphere