During the first phase of blue/green work-ups, the amphibious ready group (ARG) conducts extensive shipboard operations. Daytime operations familiarize crews with ARG ships; dozens of surface craft and aircraft make approaches to and departures from the well and flight decks. Deck landing qualifications build proficiency for aircrews from the Marine air combat element, Army and Air Force units, and the Navy helicopter detachment. Operators of various Navy and Marine Corps surface craft learn to navigate the well deck and become familiar with its peculiarities. As night falls, crews don night vision devices (NVDs). There is no moon and an overcast obscures the little available starlight. It is a low-light-level night, meaning that illumination is less than .0022 lux.
We Need NVD-Compatible Lighting on Ships
By Commander Frank G. Coyle, U.S. Navy