Abstract

This thesis presents a novel approach to ice core research which investigate the audio signal radiated from ice cores as sound due to air bubbles formed under pressure are being released as ice is being melted. [Minnaert, 1933] used the frequencies of the sound radiated by bubbles to estimate their radius. This method is applied on ice cores to estimate the total air content (TAC). Through initial measurements during a melt campaign in Bern in February 2020, design and production of test ice with and without bubbles and through analysis of the continuous flow analysis (CFA) system in Copenhagen and improvements of this, a first order setup has been designed. Four types of ice were melted on this setup and has been analyzed for total air content estimates. This worked as proof of concept though many parameters and the data analysis needs to be improved upon.