NESP-MaC-3.17-Datastory-marine-chart.jpeg

Two map panels of the reefs surrounding Bigge Island. The left map shows a low-tide satellite composite view, the right map shows the AHO Marine Charts, where most of the inshore reefs are greyed out as they are uncharted.
Download original image Attribution Eric Lawrey, Australian Institute of Marine Science

Description

The satellite imagery can be used to better understand the reefs that exist in uncharted regions. In this example we can see that Bigge Island is fringed by coral reefs. These reefs occur in the uncharted region (grey region with dashes) of the AHO ENC Marine Charts (Jun 2025).