OCEAN SOURCE AND OPTICAL PROPERTY ESTIMATION FROM EXPLICIT AND IMPLICIT ALGORITHMS

We solve an inverse problem of ocean optics for estimating spatially d ependent absorption and scattering coefficients and for determining so urces such as fluorescence, bioluminescence, or Raman scattering. The solution requires in situ measurement of the downward and upward plane irradiances and scalar irradiances and a priori estimation of the ang ular shape of the volume scattering function. Both an explicit algorit hm and an implicit one are developed from new two-stream radiative-tra nsfer equations that utilize an asymptotic radiance approximation to c lose the set of equations. A comparison of numerical tests for the two algorithms is given.