Detection of Two Recent Calving Events in Antarctica from SCATSAT-1.

The possibility of using high resolution SCATSAT-1 data for studying ice calving events in Antarctica has been explored in this study. Two recent calving events in the ice shelves of Amery (2019) and Larsen D (2020) have been observed. These gave birth to icebergs D-28 and A-69 respectively. Enhanced resolution level-4 horizontally polarized daily gamma-0 measurements are used. Canny edge detection technique has been employed to observe these events. The results obtained from the edge detection have been compared with Sentinel-1A Level-1 Ground Range Detected datasets and are found to be in good agreement. A mean difference of 0.2 km (± 3.7 km) is obtained between the two ice front edges (derived and actual).