Share Email Print
cover

Proceedings Paper

Height dependence of characteristics of power spectra of temperature investigated in the surface layer of White Sands, US
Format Member Price Non-Member Price
PDF $17.00 $21.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper 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 𝐶2𝑛. It is responsible for beam wander, blurring. and scintillation. “Ground truth” measurements of optical turbulence were carried out using a Boundary Layer Scintillometer (BLS2000). The measurements were taken along an optical path of 3.64 km and a height of 1.5 m. Additionally, height dependency of 𝐶2𝑛 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.

Paper Details

Date Published: 10 October 2018
PDF: 10 pages
Proc. SPIE 10787, Environmental Effects on Light Propagation and Adaptive Systems, 1078705 (10 October 2018); doi: 10.1117/12.2325617
Show Author Affiliations
Detlev Sprung, Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung (Germany)
Erik Sucher, Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung (Germany)
Alexander M. J. van Eijk, Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung (Germany)
TNO Defence, Security and Safety (Netherlands)
Christian Eisele, Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung (Germany)
Dirk Seiffer, Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung (Germany)
Karin Stein, Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung (Germany)


Published in SPIE Proceedings Vol. 10787:
Environmental Effects on Light Propagation and Adaptive Systems
Karin U. Stein; Szymon Gladysz, Editor(s)

© SPIE. Terms of Use
Back to Top