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Along with Northeast Ocean Data, other sources of maps and data are available for ocean planning in the region. This page provides a directory of select sources. Northeast Ocean Data is not responsible for data integrity or operability of the resources listed on this page.


Click on any sub-title below (for example, Maps and Tools or Other Data Sources) to see available data sources

Maps and Tools


The Northeastern Regional Association of Coastal and Ocean Observing Systems (NERACOOS) provides real-time maps, forecasts, and historical data on ocean conditions.

The Environmental Response Management Application (ERMA) is a web-based GIS tool for emergency responders and environmental resource managers. ERMA integrates real-time and static datasets into a single interactive map.

The U.S. Atlantic Coast and Eastern Region Internet Map Server web page of the U.S. Geological Survey is a gateway to maps and data on high-resolution seafloor mapping, shoreline change, sediments, and other features.


Connecticut Environmental Conditions Online provides simple and advanced interactive map viewers with many types of data related to coastal resource management, along with aerial photographs.

The Maine Coastal Atlas displays coastal and marine spatial data for reference purposes and provides information about research and monitoring efforts related to Maine’s coastal waters and beyond.

The Massachusetts Ocean Resources Information System (MORIS) is an interactive map that can be used to find and display spatial data pertaining to the Massachusetts coastal zone.

New Hampshire Coastal ViewerThe New Hampshire Coastal Viewer is an online mapping tool with datasets related to coastal resources and hazards in the state’s 42 coastal watershed communities.

The New York Geographic Information Gateway provides public access to data, interactive maps, real-time information, and expert knowledge relevant to the Office of Planning and Development’s activities throughout New York State.

The Rhode Island Ocean Special Area Management Program map viewer has satellite images, nautical charts, and data on ocean uses, environmental characteristics, and administrative boundaries.

The Rhode Island Department of Environmental Management provides interactive maps of environmental resources, aquaculture areas, shellfish harvest restrictions, and more.


The Marine Cadastre is a joint initiative of the Bureau of Ocean Energy Management (BOEM) and the National Oceanic and Atmospheric Administration (NOAA) to provide authoritative data to meet the needs of the offshore energy and marine planning communities.

NOAA’s Digital Coast provides access to dozens of tools for data analysis, data visualization, and simulation in support of ocean and coastal planning.

Ocean.Data.Gov is the National Ocean Council’s portal with a wide range of data, information, and tools to support people engaged in ocean and coastal planning.

The Wetlands Mapper displays wetland habitat data from the U.S. Fish and Wildlife Service.

Data Explorer

Data Explorer Thumbnail Image


Define and view any custom combination of data on one map