KOMPSAT-5 EW SAR image mosaic for Iceberg A-68 obtained during May 16–18 2018.
KOMPSAT-5 is the first Korean satellite equipped with an X-band Synthetic Aperture Radar (SAR) with a center frequency of 9.66 GHz. KOMPSAT-5 has a revisit cycle of 28-days. However, due to the swath overlay, it can observe an area twice a day. Therefore, KOMPSAT-5 is very useful for continuous monitoring of Iceberg A-68.
KOMPSAT-5 is operated by the Korea Aerospace Research Institute (KARI). Korea Polar Research Institute (KOPRI) has independently used the KOMPSAT-5 data for the observation of cryosphere under a research agreement with the KARI. Before the separation of Iceberg A-68, KOPRI had monitored the rift development status of Larsen C Ice Shelf through the KOMPSAT-5 ES (Enhanced Standard) mode observation (3-meter resolution over 30-km observation width). After the iceberg calved from the ice shelf, the KOMPSAT-5 EW (Enhanced Wide swath) mode observation (20-meter resolution over 100-km observation width) is used as well to observe any changes in the iceberg. KOMPSAT-5 can capture the entire Iceberg A-68 every 2 or 3 days.
The high-resolution SAR images acquired from KOMPSAT-5 allow us to observe changes in Iceberg A-68 in more detail. It can monitor the entire iceberg once every 2 to 3 days and be used complementarily with other satellite SAR such as Sentinel-1, thus enabling constant monitoring of the iceberg.
KOPRI will continuously produce information on Iceberg A-68 by securing high-resolution SAR images from KOMPSAT-5.