Synthetic Aperture Radar (SAR) satellites have become essential tools for monitoring glaciers and ice sheets, enabling scientists to measure glacier speeds and locate grounding lines, where ice meets the ocean. European Sentinel-1 satellites regularly capture SAR images over coastal Antarctica and Greenland at a resolution of 5x20 meters every six days. However, this interval causes loss of detail (decorrelation), particularly for rapidly moving glaciers, highlighting the need for more frequent, high-resolution imagery.

To address this, the Canadian Space Agency launched the RADARSAT Constellation Mission (RCM) in 2019, consisting of three satellites acquiring SAR data every four days. RCM significantly improves glacier monitoring, providing detailed, frequent images of Antarctic glaciers.

In this study, we focus on extensive RCM datasets from Antarctica's Cook Ice Shelf and Ninnis Glacier. We compare and integrate this data with Sentinel-1 imagery to enhance our analysis. Our primary goal is to accurately track grounding line movements, including short-term tidal variations, and to provide additional insights through ice velocity measurements derived from earlier RADARSAT-2 data.