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Problems inherent in using aircraft for radio oceanography studiesSome of the disadvantages relating to altitude stability and proximity to the ocean are described for radio oceanography studies using aircraft. The random oscillatory motion introduced by the autopilot in maintaining aircraft altitude requires a more sophisticated range tracker for a radar altimeter than would be required in a satellite application. One-dimensional simulations of the sea surface (long-crested waves) are performed using both the JONSWAP spectrum and the Pierson-Moskowitz spectrum. The results of the simulation indicate that care must be taken in trying to experimentally verify instrument measurement accuracy. Because of the relatively few wavelengths examined from an aircraft due to proximity to the ocean and low velocity compared to a satellite, the random variation in the sea surface parameters being measured can far exceed an instrument's ability to measure them.
Document ID
19770037920
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Walsh, E. J.
(NASA Wallops Flight Center Wallops Island, Va., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1977
Publication Information
Publication: IEEE Transactions on Antennas and Propagation
Volume: AP-25
Subject Category
Aircraft Design, Testing And Performance
Accession Number
77A20772
Distribution Limits
Public
Copyright
Other

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