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Per cent polarization phase function (PPPF; per cent polarization versus scattering angle) measured at a depth of 2 m, (a–c) in clear and (d–f) semi-turbid waters at three solar zenith angles (SZA). Wavelength = 450 nm. SZA; (a,d) 0°–30°; (b,e) 30°–60°; (c,f) 60°–90°.
