CCOM Hydrographic Field Course

In fall 2023, I began pursuing a Certificate in Ocean Mapping at the University of New Hampshire Center for Coastal and Ocean Mapping / NOAA Joint Hydrographic Center (CCOM/JHC). I was inspired by the geophysical survey work that SouthCoast Wind had done while I was on the project, so I decided to go back to school to further pursue this field.

At CCOM/JHC, I studied the fundamentals of hydrographic surveying. The curriculum included courses in mapping techniques, geodesy, mathematics, physical oceanography, geological oceanography, and seamanship and marine weather. The yearlong program culminated in a hydrographic field course (Summer Hydro), in which my classmates and I designed and executed a survey of the seafloor at the mouth of Portsmouth Harbor utilizing a multibeam echosounder (Teledyne SeaBat T51-R), moving vessel profiler (AML MVP-30), and bathymetric sidescan sonar (EdgeTech 6205).

Collecting multibeam, bathymetric sidescan, and sound velocity data aboard the R/V Gulf Surveyor
Bathymetric data collected with SeaBat T51-R during Summer Hydro
Collecting multibeam data with an autonomous surface vehicle (ASV)

In addition to the bathymetric data collected during the Hydrographic Field Course, we also collected grab samples and video samples to cross-check our backscatter data in the survey area shown above.

Deploying Shipek grab sampler from the R/V Gulf Surveyor
Documenting grab samples
Retrieving underwater video camera
Summer Hydro faculty, staff, and students aboard the R/V Gulf Surveyor