Willow Spring, NC City Data - Population, Homes, Statistics. Willow Spring, NC is a city with great restaurants, attractions, history and people. There are around 8,926 people who live in Willow Spring and approximately 627,846 who live in Wake County.
Snow, ice, and clouds have high albedos (typically from 0.7 to 0.9) and reflect more energy than they absorb. Earthâs average albedo is about 0.3. In other words, about 30 percent of incoming solar radiation is reflected back into space and 70 percent is absorbed. A sensor aboard NASAâs Terra satellite is now collecting detailed measurements of how much sunlight the earthâs surface reflects back up into the atmosphere.
In the process of being absorbed, the radiation is converted into heat energy. Some of this absorbed radiation or heat energy is then emitted away from Earthâs surface as longer wavelength infrared radiation. To understand how incoming solar radiation and outgoing terrestrial radiation are balanced, we will need to look at the energy gains and losses.