Albedo

Try this

Use the Light Meter tool to compare the reflectivity of various types of surfaces representative of different types of ground cover: snow, water, vegetation, sand, etc.

Challenge yourself

• Predict which types of ground cover produce greater reflectivity.
• Consider how ground cover might change if the Earth were to heat up or cool down, and what effect this would have on albedo and environmental feedback loops.
• Using a more specialized app such as Albedo; A Reflectance App, and a gray card, perform more detailed analyses of specific reflectivities of red, blue, and green light.