Optical instruments are routinely employed to obtain a wealth of information about the atmosphere, including its composition, temperature, and winds. A bewildering variety of optical instruments have been proposed over the years, making it difficult to decide which instrument should be chosen to make a specific measurement. Spectral Imaging of the Atmosphere traces the historical development of both spectral and imaging methods and places them in a unified framework relevant to observations of the troposphere, stratosphere, mesosphere and thermosphere. The underlying concepts of various measurement methodologies are presented and paired with appropriate applications. A selection of specific spectral imaging instruments, appropriate to illustrate each conceptual type, is described in detail.
Shepherd's work provides both scientists and engineers with an in-depth understanding of the fundamental concepts they need to know in order to plan a program of atmospheric measurements. Expected future methods and developments are also presented. Problems designed to test and enhance the reader's understanding of the material are included in each chapter.
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2. Spectral Concepts
3. Instrument Responsivity and Superiority
4. Imaging Concepts
5. The Fabry-Perot Spectrometer
6. The Michelson Interferometer
7. Multiplexers and Modulators
8. Doppler Michelson Interferometry
9. Operational Atmospheric Spectral Imagers
10. Future Atmospheric Spectral Imagers
11. Grating Spectrometers as Spectral Imagers