The introduction of horizontal inhomogeneity of meteorological conditions in the EOSTAR propagation model
conference paper
The effective field-of-view of an electro-optical sensor in a given meteorological scenario can be evaluated using a ray-tracer. The resulting ray trace diagram also provides information pertinent to the quality (distortion, mirages) of the image being viewed by the sensor. The EOSTAR (Electro Optical Signal Transmission And Ranging) model suite contains a ray tracer that has been upgraded to take into account horizontal inhomogeneities in the atmosphere, such as temperature gradients as observed in coastal areas where (e.g.) cold air flows out over warm waters. Initial results for horizontally inhomogeneous atmospheres are presented and compared to calculations for horizontally homogeneous atmospheres. It is shown that the horizontal inhomogeneity of temperature should be taken into account when assessing sensor performance.
Topics
TNO Identifier
221817
Article nr.
63030G
Source title
Atmospheric Optical Modeling, Measurement, and Simulation II, 15 August 2006, San Diego, CA, USA
Editor(s)
Hammel, S.M.
Kohnle, A.
Kohnle, A.
Place of publication
Bellingham,WA