SAR analysis of the ice loss by marine-terminating ice tongues in polar environment

F. Parmiggiani; M. Moctezuma-Flores; L Guerrieri

doi:10.1117/12.2532481

14 October 2019 SAR analysis of the ice loss by marine-terminating ice tongues in polar environment

F. Parmiggiani, M. Moctezuma-Flores, L Guerrieri

Proceedings Volume 11150, Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2019; 111500R (2019) https://doi.org/10.1117/12.2532481
Event: SPIE Remote Sensing, 2019, Strasbourg, France

Abstract

In preparation for a research project focused on the risk of the sea level rise (SLR), and on the basis of previous studies, we started to investigate the ice loss by some marine-terminating ice tongues in Antarctica in the last 10 years. The first test site selected for this study was the Erebus Ice Tongue (EIT) which stretches from Ross Island into the Ross Sea. The analysis was carried out using Cosmo-SkyMed (CSK) images from the catalogue of the Italian Space Agency (ASI) and from a recent acquisition. The scene under analysis includes various elements such as sea-ice, open-sea and sections of the Ross Island coast. Over the years, the area of the EIT underwent various changes. Thus, to avoid misinterpretations caused by the temporal variations of the scene elements, it was decided to restrict the analysis to the tongue itself. The first step of the analysis defined a methodology for automatically detecting the EIT in a delimited window. This was accomplished using a Template Matching technique which samples the input image with a manual training pattern of the EIT structure. The result shows the matches of the EIT patch. In the second step, a relaxation method for pixel labelling was developed in order to compare the area of the ice tongue as it was 10 years ago and today. In the case of the Erebus Ice Tongue, the analysis shows a modest decline of the area in the last 10 years, hence a modest ice loss.

Conference Presentation

Citation Download Citation

F. Parmiggiani, M. Moctezuma-Flores, and L Guerrieri "SAR analysis of the ice loss by marine-terminating ice tongues in polar environment", Proc. SPIE 11150, Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2019, 111500R (14 October 2019); https://doi.org/10.1117/12.2532481

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