Center for Coastal and Ocean Mapping Joint Hydrographic Center

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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  • Jenna Ehnot holds measuring device while standing on shore.

    Congratulations Jenna!

    At the end of the fall semester, Jenna Ehnot successfully defended her master's thesis in ocean engineering with, "Now You See It: Evaluating a Small Object Detection Model for Uncrewed Surface Vehicle Operations."

    Watch Jenna's defense here

  • Bathymetric image of seafloor

    Elias Adediran Featured in Hydro International

    CCOM Ph.D. student Elias Adediran has published an article in Hydro International on, "how MBES resolution scales with depth, why AUV/ROV platforms can achieve far higher detail, the limitations of each platform, and why ‘fit-for-purpose mapping’ remains essential in modern ocean mapping."

    Read the article here

  • Larry Mayer in front of large-scale tiled video display showing a bathymetric image

    Larry Mayer Receives National Champion of the Ocean Award

    CCOM director Larry Mayer has received the National Champion of the Ocean Award from the Urban Coast Institute (UCI) of New Jersey's Monmouth University where he made remarks at the 2025 Future of the Ocean Symposium. 

    Watch Larry's talk here

  • Still from video of Jenna Ehnot and Natalie Cook Q&A from inside the control center for the Lake Erie expedition.

    Q&A with Jenna and Natalie

    CCOM grad students Jenna Ehnot and Natalie Cook recently took questions and discussed their experiences with marine robotics and their mapping expedition in Lake Erie.

    Watch the Q&A here

Recent Publications

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.


Automated Islands Generalization Techniques for Nautical Charts
Nada, T., Kastrisios, C., Calder, B., Ence, C., Greene, C., Bethell, A., Geo-Spatial Information Science, 1–14. 2025.


More Publications

Events

Now You See It: Evaluating a Small Object Detection Model for Uncrewed Surface Vehicle Operations
Jenna Ehnot
Master's Thesis Defense, Ocean Engineering
Friday, December 12, 2025, 10:00 a.m.
Chase 130


Quantifying Contributions of Sonar Systems on Marine Soundscapes: A Statistical and Machine Learning Analysis
Reilly Lessard
Master's Thesis Defense, Computer Science
Tuesday, December 9, 2025, 9:00 a.m.
Chase 130


Remote Sensing Approaches for Mapping Marine Life in the Gulf of Maine
Jenn Dijkstra
Research Associate Professor
UNH Center for Coastal & Ocean Mapping
Friday, December 5, 2025, 3:10 p.m.
Chase 105


More Events