Concentration of organic compounds in the snow-ice cover of the Eastern Antarctic

• Main Author: Nemirovskaya, Inna A
• Format: Dataset
• Language: English
• Published: PANGAEA 2006
• Subjects: 46RAE; 46-Russian_Antarctic_Expedition; 48RAE; 48-Russian_Antarctic_Expedition; AF01; Akademik Fedorov; Antarctic; Archive of Ocean Data; ARCOD; Davis Sea; Mirny_Station; Mirny-1; Mirny-2; Mirny-3; Mirny-4; Mirny Station; Molodezhnaya-1; Molodezhnaya-2; Molodezhnaya-3; Molodezhnaya Station; Nem-1; Novolazorevskaya-1; Novolazorevskaya-2; Novolazorevskaya Station; Progress_Station; Progress-1; Progress-2; Progress-3; Progress-4; Progress-5; Progress Station; Arctic; Haswell Island; Mirny; Molodezhnaya; Antarc*
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.726275; https://doi.org/10.1594/PANGAEA.726275

This paper presents data on concentrations and composition of organic substances, lipids, and hydrocarbons, in the snow-ice cover of fast ices and continental lakes of Antarctic. It was shown that organic compounds were accumulated in layers with the most intense autochthonous processes (mainly at the snow-ice and ice-water boundaries). These zones remain active at a biogeochemical medium even at low temperatures. The maximum content of organic compounds (10-20 times that of the snow-ice cover of other regions) and a sharp change in the proportions of their migration forms in the ice volume were detected in the regions of penguin colonies (fast ice in the Buromsky Island and a lake in the Haswell Island). Contents and composition of hydrocarbons in Antarctic ices were compared with those of Arctic ices.