Satellite and Space Communication Technology

Satellite Radiance

Satellite radiance Measure up welling radiation at top of atmosphere. Measure New IR instruments and deep layers generally implies large horizontal scale. Weather satellites do not measure temperature directly but measure radiances in various wavelength bands. Since 1978 Microwave sounding units (MSUs) on National Oceanic and Atmospheric Administration polar orbiting satellites have measured the intensity of upwelling microwave from atmospheric oxygen, which is proportional to the temperature of broad vertical layers of the atmosphere.