GOES Sounder Shortwave IR Albedo

This is the same product as the shortwave IR albedo derived using GOES Imager channels 2 and 4, but using Sounder channel-8 (longwave IR, 11 µm) and channel-18 (shortwave IR, 3.7 µm). See the equivalent Imager product for an explanation of how this product is generated. Low-level water clouds appear white both day and night. Higher-level ice clouds, such as cirrus, appear dark at night, white during the day.