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. 2016 Sep 21;7:1404. doi: 10.3389/fpls.2016.01404

FIGURE 4.

FIGURE 4

Monte Carlo simulation of light distribution in a faviid coral for vertically incident collimated illumination. (A) The 2D distribution of relative 636 nm fluence rate ϕ (z,x) in the model coral (as in Figure 1A). (B) The axial profile down the center of the coral coenosteum ϕ (z) at x = 0 mm. Note that the fluence rate within the living tissue is twice the delivered irradiance (1 cm-2). Between z = 0 to 2 mm, the back-reflected light escaping from the tissue adds to the delivered irradiance to yield a fluence rate in water that exceeds 1 cm-2.