Albedometer
= Albedometer
{wiki=Albedometer}
An albedometer is an instrument used to measure the albedo of a surface, which is the measure of reflectivity or reflectance of that surface. Albedo is defined as the ratio of reflected solar energy to the total incoming solar energy and is expressed as a value between 0 and 1, or as a percentage. Albedometers typically consist of sensors that can detect solar radiation, both incoming and outgoing.