Window
From Glossary of Meteorology
window
- A band in the electromagnetic spectrum that offers maximum transmission and minimal attenuation through a particular medium with the use of a specific sensor.
See atmospheric window.
- Open water in a predominantly frozen river.
It is caused by warmer water from a spring or tributary, or by turbulence over a shoal. See polyn'ya.
- (Obsolete.) A term for the chaff used for military countermeasure purposes during World War II.