Title
Height dependence of characteristics of power spectra of temperature investigated in the surface layer of White Sands /US
Author
Sprung, D.
Sucher, E.
van Eijk, A.M.J.
Eisele, C.
Seiffer, D.
Stein, K.
Contributor
Gladysz, S. (editor)
Stein, K.U. (editor)
Publication year
2018
Abstract
A field trial was performed in the arid scrub area of White Sands, NM /USA in October 2017 investigating the atmospheric influence on imaging and sensor performance. In this paper we focus on the strength of optical turbulence. Optical turbulence is described by the structure function parameter of the refractive index Cn 2. It is responsible for beam wander, blurring. and scintillation. "Ground truth" measurements of optical turbulence were carried out using a Boundary Layer Scintillometer . The measurements were taken along an optical path of 3.64 km and a height of 1.5 m. Additionally, height dependency of Cn 2 is explored in the surface layer using 4 ultrasonic anemometers at discrete heights between 1 and 10 m. Power spectra of temperature were determined from time series of the ultrasonic anemometer data, which were inspected for the height dependency of spectral characteristics. The effect of the arid scrubs area on the applicability of Kolmogorov turbulence was investigated and discussed in this paper. © 2018 SPIE.
Subject
Height dependence
Optical turbulence
Surface layer
Ultrasonic anemometer
Adaptive systems
Anemometers
Boundary layers
Light propagation
Power spectrum
Refractive index
Scintillation
Spectrum analysis
Turbulence
Kolmogorov turbulence
Optical turbulence
Sensor performance
Spectral characteristics
Structure functions
Atmospheric thermodynamics
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http://resolver.tudelft.nl/uuid:74406a78-301f-4a7c-b4c8-272185987ecc
TNO identifier
844216
Publisher
SPIE
ISBN
9781510621572
ISSN
0277-786X
Source
Proceedings of SPIE - The International Society for Optical Engineering, 10787
Article number
1078705
Bibliographical note
The Society of Photo-Optical Instrumentation Engineers
Document type
conference paper