Supplement 1 Algorithm Theoretical Basis Document for AMSR-E Ocean Algorithms

The ocean algorithm is based on the physical Radiative Transfer Model (RTM) described in Wentz and Meissner [2000]. The RTM consists of an atmospheric absorption model for water vapor, oxygen and liquid cloud water and a sea surface emissivity model that parameterizes the emissivity as function of sea surface temperature, sea surface salinity, sea surface wind speed and direction. The details of the physical RTM have been described in Wentz and Meissner [2000]. Some components of the model have been updated. These are the dielectric constant of sea and cloud water [Meissner and Wentz, 2004], the isotropic wind induced sea surface emissivity [Meissner and Wentz, 2006] and the wind directional signal of the sea surface emissivity [Meissner and Wentz 2002, Meissner and Wentz 2006].