Cloud phase discrimination by reflectance measurements near 1.6 and 2.2 micrometre

Abstract

We now have experimental results from an improved version of the instrument which utilized differences in the optical properties of ice and liquid water in the near-infrared to sense remotely the 'glaciation' process in growing cumulus congestus clouds. We believe that these new results identify unambiguously the cause of the decreased reflectance around 1.6 micrometre; the improved version also extended the instrument's spectral range, so that features due to ice/liquid spectral differences around 2.2 micrometre could be examined. This note intended to describe briefly these new results. -from Authors