Scintillation measurements during the EOPACE Novenber '96 and August '97 campaigns
conference paper
Following scintillation experiments during EOPACE measurement campaigns in the spring of 1996, a new set of experiments was designed in November 1996 and August/September 1997 over San Diego Bay. The main purpose was to further investigate the discrepancy between measured scintillation data and values predicted from turbulence models. One simple way to measure scintillation was the decrease of the signal variations with increasing integration time in the IR transmissometer. In addition near IR and midwave IR imagery was used of static and modulated sources. One of the static sources was mounted on a small boat, sailing out to horizon ranges, as was done earlier in the LAPTEX experiments at Crete. For the detection of the signals of the modulated source a set of receivers was used, providing 2 lines of sight at different altitudes above the water. The results show small differences in scintillation at 2 altitudes. The midwave and near-IR scintillation values show little correlation with C<sub>N</sub><sup>2</sup> values measured at the midway buoy, confirming the earlier experiments. The impact of atmospheric scintillation of IRST performance is again demonstrated.
TNO Identifier
95135
Publisher
SPIE
Source title
SPIE Proceedings - Propagation and Imaging through the Atmosphere II, 22-23 July 1998, San Diego, CA
Editor(s)
Bissonnette, L.R.
Place of publication
Bellingham, WA.
Pages
63-76