The Center for Coastal and Ocean Mapping/Joint Hydrographic Center, located at the University of New Hampshire, is a national center of expertise in ocean mapping and hydrographic sciences.
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Investigating Greenland's Glaciers
Larry Mayer, Brian Calder, and Elizabeth Weidner represented CCOM during the GEOEO North of Greenland 2024 expedition to the remote Victoria Fjord aboard the I/B Oden. Findings from the expedition have been published in Nature, offering new insight into the evolution of glaciers in northern Greenland.
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What have we been up to?
Find out by reading our 2025 Executive Summary for an overview, then use the links or QR codes to access the task narratives for more details.
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We're hiring!
CCOM has created two new positions to support our efforts in cartography and navigation. Please use the links for more details and for instructions on how to apply.
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Mapping in Arctic Waters
In this video from Seabed 2030, CCOM researcher Kevin Jerram is one of the expedition members aboard the I/B Oden who gives us a glimpse of what it's like to map the ocean floor in Arctic waters.
Research
Education
Outreach
E/V Nautilus Installs New EM304 Multibeam Sonar to Explore Deeper and More Than Ever!
Nautilus Live Blog, June 8, 2026
Launching the NA178 Expedition: Starting 2026 Mapping Deeper Than Ever!
Nautilus Live Blog, June 6, 2026
China Publishes Maps Detailing Minerals on the Ocean Floor
New York Times, April 23, 2026
Deep-Sea History
UNH Magazine, March 3, 2026
How the S-100 Framework Can Enable True Autonomy for USVs
Hydro International, March 2, 2026
A Multi-Source, Remote Sensing-Driven Framework for Detecting Structural and Compositional Change in Coral Reefs
Trudeau, G.A., Lowell, K., Dijkstra, J.A., Ecological Informatics, 96. 2026.
How Multibeam Echosounder Platform Choice Controls Mapping Resolution
Adediran, E., Hydro International #4 - 2025 BUSINESS GUIDE, 2026.
Mapping Coral Reef Habitats with ICESat-2 and Satellite Imagery: A Novel Spectral Unmixing Approach Compared to Machine Learning
Trudeau, G.A., Lyon, M., Lowell, K., Dijkstra, J.A., Remote Sens., 17(21), 3623, 2025.
Unlocking Hydrographic Data Throughput
Wilson, M., Faulkes, T., Masetti, G., Hydro International, 3(29). 2025.
A Unified Operational Framework for Interpolation Uncertainty in Bathymetry: Estimation, Integration, and Application to Adaptive Hydrographic Survey Design
Elias Adediran, Ph.D. Thesis Proposal Defense
Ocean Engineering
Wednesday, June 10, 2026, 11:00am
Chase 105
Subsampled Graph-Based Bathymetric Data Processing
Adriano Fonseca, Ph.D. Thesis Proposal Defense
Ocean Engineering
Thursday, May 21, 2026, 9:00am
Chase 130
It’s Not Just Depth: Estimating Uncertainty in Interpolated Bathymetry
Elias Adediran, Doctoral Researcher
UNH CCOM/JHC
Friday, May 1, 2026, 3:10pm
Chase 105