Abstract
A newly developed multi-spectral polarimeter, MS-PHS, is described. It is designed to measure the radiance and degree of polarization of hemispherical sky radiation at the wavelength of OCTS and POLDER on board the ADEOS satellite launched in August, 1996. Accuracy of the measurement of the degree of polarization is discussed considering the effect of ship motions when the measurement is made on the ship. The measurements of the degree of polarization carried out on the waters around Shikoku Island of Japan is shown. The comparison between the measurement and the numerical simulation shows good agreement in the pattern of the degree of polarization and its maximum value in the principal plane.
