Integrated Ocean and Coastal Mapping


Map Once, Use Many Times

Seabed 2030 Initiative and the U.S. Analysis

Knowledge of the depth, shape, and composition of the seafloor are foundational data elements necessary to explore, sustainably develop, understand, conserve, and manage our coastal and offshore natural resources. The 2019 Presidential Memorandum on Ocean Mapping of the United States Exclusive Economic Zone and the Shoreline and Nearshore of Alaska and the Seabed 2030 initiative both make comprehensive ocean mapping a priority for the coming decade. These are drivers of innovation to increase survey efficiency, foster cooperation, and encourage the open sharing of data.

Seabed 2030 is an international, collaborative project between the IHO/IOC General Bathymetric Chart of the Oceans (GEBCO) and the Nippon Foundation that aims to facilitate the complete mapping of the world’s ocean floor by 2030.

GEBCO 2019 estimates only 15% of the global seafloor has been mapped. The figure below illustrates the sparse seafloor measurements associated with global bathymetry maps. The vast regions of unmapped areas (shown in dark grey) are filled with low resolution estimates of seafloor depth based on satellite data to produce global bathymetry images. This project seeks to replace those estimates with real data.

Image of the Earth with an inset graphic showing that only 15% of the world’s ocean is mapped using multibeam echosounder technologies. 
				   Direct measurement data is sparse to the east of the mid-Atlantic Ridge.  Image courtesy of the Center for Coastal and Ocean 
				   Mapping/Joint Hydrographic Center (CCOM/JHC).

NOAA has taken a closer look at how a Seabed 2030 mapping goal can be met within U.S. waters. This site outlines NOAA’s approach to identifying the bathymetric data coverage within U.S. waters and calculating the status of seafloor mapping.

Through an Integrated Ocean and Coastal Mapping (IOCM) lens, NOAA offers innovative ways for the U.S. to reach this goal and to follow our progress via published documentation.