As satellite communications constellations grow in size and number, they are also competing for a scarce and increasingly valuable resource: spectrum, the bands of radio frequencies that are crucial ...

A NASA team delivered in May a sophisticated microwave radiometer specifically designed to overcome the pitfalls that have plagued similar Earth-observing instruments in the past. Literally years in ...

The NASA Soil Moisture Active Passive (SMAP) mission, launched in 2015, has over 10 years of global L-band radiometry observations. The low frequency [1.4 GHz frequency or 21 cm (8 in) wavelength] ...

Abstract: Accurate weather forecasts are crucial to ensure that the nation is responsive and prepared for weather and climate disasters. Passive microwave radiometer measurements of temperature, ...