Albedo in an albedo range of 0.1 to 0.4. The average albedo of Earth is about 0.3. This is far higher than for the ocean primarily because of the contribution of clouds. Earth's surface albedo is regularly estimated via Earth observation satellite sensors such as NASA's MODIS instruments on board the Terra and Aqua satellites, and the CERES instrument on the Suomi NPP and JPSS. As the amount of reflected radiation is only measured for a single direction by satellite, not all directions, a mathematical model is used to translate a sample set of satellite reflectance measurements into estimates of directional-hemispherical
Albedo One writing of genre author Gene Wolfe. These columns are often noted for their "opinionated" or controversial stance on genre matters, with that in issue 31 of "Albedo One" being described as "a deliberately provocative rant" by one reviewer. In 1996 the editors offered an open invitation, stating that "If you feel strongly about anything and want to let us and the readers know, you too can don the mightly mantle of Severian." Between 1997 and 1999 "Albedo One" was honored three times by the European Science Fiction Society, winning Awards for "Best Magazine" and "Best Publisher". Stories from the magazine