Mapping the Ocean Floor

NOAA has created an Esri map of Gloucester Harbor which allows you to explore the ocean floor. Peer Beneath the Waves uses the Esri Story Map Spyglass feature to allow you to peak beneath NOAA's nautical chart of the harbor and view the seabed beneath the waves.

You can drag the Spyglass around on the map to explore NOAA's hydrographic survey data from Gloucester Harbor. The map also includes a number of markers to help you learn more about the seabed in the harbor.