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Proceedings Paper

Precision tropopause turbulence measurements
Author(s): Leonard John Otten; Al Jones; Don G. Black; Joshua Lane; Ron Hugo; Jeffery Beyer; Michael C. Roggemann
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Paper Abstract

Limited samples of the turbulence structure in the tropopause suggest that conventional models for atmospheric turbulence may not apply through this portion of the atmosphere. This paper discusses the instrumentation requirements, design and calibration of a balloon borne sensor suite designed to accurately measure the distribution and spectral spatial character of the index of refraction fluctuations through the tropopause. The basis for the data system is a 16 bit dynamic range, high data rate sample and hold instrumentation package. Calibration and characterization of the constant current anemometers used in the measurements show them to have a frequency response greater than 170 Hz at the -3 Db point and sufficient resolution to measure a Cn2 of 1 x 10-19 cm-2/3. A novel technique was developed that integrates the over 20 signals into two time correlated telemetry streams. The entire system has been assembled for a flight in the late summer of 2000.

Paper Details

Date Published: 17 November 2000
PDF: 8 pages
Proc. SPIE 4125, Propagation and Imaging through the Atmosphere IV, (17 November 2000); doi: 10.1117/12.409303
Show Author Affiliations
Leonard John Otten, Kestrel Corp. (United States)
Al Jones, Kestrel Corp. (United States)
Don G. Black, Kestrel Corp. (United States)
Joshua Lane, Kestrel Corp. (United States)
Ron Hugo, Univ. of Calgary (Canada)
Jeffery Beyer, Michigan Technological Univ. (United States)
Michael C. Roggemann, Michigan Technological Univ. (United States)


Published in SPIE Proceedings Vol. 4125:
Propagation and Imaging through the Atmosphere IV
Michael C. Roggemann, Editor(s)

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