Small-sized remote sensing reflectance meter

Abstract

A small-sized spectroradiometer (SSR) developed at the Shirshov Institute of Oceanology of the Russian Academy of Sciences based on a miniature AIOX 2000–02 spectrometer for deck measurements of the spectral remote sensing reflectance Rrs(λ), the parts of which are mainly made by 3D printing, is described. The advantage of the new spectroradiometer is its significantly lower weight and dimensions compared to the previously developed deck spectroradiometer, as well as the convenience of measuring in deck conditions, including during pitching, due to both its weight and size characteristics and the lack of the need to use a cuvette with clean water and manually install a cuvette and a gray screen during measurements. The Rrs(λ) spectra obtained using this instrument are compared with the results of other spectroradiometers. It is shown that the relative mutual error of measuring the spectral coefficient of remote sensing reflectance between the data of the described spectroradiometer and other instruments does not exceed 15 %, which can be considered a good match between their data. The results of processing the Rrs(λ) curves obtained on the described device using the GIOP algorithm are in good agreement with independent data on bio-optical characteristics got by independent methods at the time of measurements.