Refractive caustic network
by Konstantinos Kourtidis, Demokritus University of Thrace, Xanthi, Greece
The image shows the so-called refractive caustic network. A wavy water surface (the sea, in this image) projects patterns of sunlight onto nearby surfaces (the bottom, in this image). The surface of the water acts as a series of positive and negative lenses. The positive ones focus sunlight onto the bottom while the negative ones refract light out of the beam. As in this image we are facing the sun and we look at the water surface at a narrow angle, dispersion of light from networks at the bottom at the water-air interface shows flashes of colours.
Taken on 8
April
2008
Submitted on 28 Aug 2008
Categories
Location
Tags
atmospheric optics, light, optics
Colour palette
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3072 × 2304 px;
image/jpeg; 3.3 MB
Camera:
Panasonic Lumix DMC-FZ8
Licence
Credit: Konstantinos Kourtidis (distributed via imaggeo.egu.eu)
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