Title :
The radio thermal noise properties of the lower atmosphere
Author_Institution :
National Bureau of Standards, Boulder, CO, USA
Abstract :
The extension of the practical usage of the radio spectrum to centimeter and millimeter wavelengths is limited by the thermal noise properties of the lower atmosphere. It is the purpose of this paper to outline the theory of tropospheric thermal noise emission, emphasize its dependence upon the absorption and refraction characteristics of the troposphere and, finally, to give estimates of its climatic variation.
Keywords :
Atmospheric modeling; Bean model; Brightness temperature; Earth; Electromagnetic wave absorption; Frequency; Meteorology; Refractive index; Resonance; Terrestrial atmosphere;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1963
DOI :
10.1109/APS.1963.1148654
