![A group of four images (top to bottom): an image of the Visual Lab at University of New Hampshire/Joint Hydrographic Center, an uncrewed surface vessel during survey operations, a digital terrain map of the entrance to Portsmouth Harbor, NH., and an image of an autonomous underwater vehicle being deployed. (Image credit: NOAA and University of New Hampshire/Joint Hydrographic Center) A group of four images (top to bottom): an image of the Visual Lab at University of New Hampshire/Joint Hydrographic Center, an uncrewed surface vessel during survey operations, a digital terrain map of the entrance to Portsmouth Harbor, NH., and an image of an autonomous underwater vehicle being deployed.](/sites/default/files/styles/landscape_width_1275/public/2023-09/IMAGE-Joint-Hydrographic-Center-of-Excellence-091523-NOAA.jpg?h=204f5db9&itok=Bmxhydsa)
A group of four images (top to bottom): an image of the Visual Lab at University of New Hampshire/Joint Hydrographic Center, an uncrewed surface vessel during survey operations, a digital terrain map of the entrance to Portsmouth Harbor, NH., and an image of an autonomous underwater vehicle being deployed. (Image credit: NOAA and University of New Hampshire/Joint Hydrographic Center)