Abstract
The status of techniques for sounding the lower atmosphere from space is discussed. Examples are presented to illustrate the utility and deficiencies of the current approach. Future improvements in polar orbiting based soundings are anticipated through the implementation of the advanced microwave sounder beginning in 1992. However, the greatest advance in satellite soundings will be realized in the latter 1990's when high resolution infrared spectrum measuring devices are flown. Results are presented from an airborne prototype interferometer spectrometer to illustrate the drastic improvement in sounding vertical resolution and accuracy that is achieved with high spectral resolution and broad spectral coverage devices. Future high vertical resolution sounding instruments aboard geostationary weather satellites offer the possibility of measuring vertical wind profiles through tracing the horizontal displacement of moisture features retrieved within narrow vertical layers of the atmosphere.
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