<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">autonomous underwater vehicles</topic></authority><related type="broader"><topic>unmanned underwater vehicles</topic></related><variant type="other"><topic>AUV</topic></variant><variant type="other"><topic>autonomous underwater vehicle</topic></variant> <note xml:lang="en"><![CDATA[ Unmanned underwater robots used for survey missions such as detecting and mapping submerged wrecks, rocks, and obstructions (with the use of sensors) that can be a hazard to navigation for commercial and recreational vessels. They complete these missions without operator control. For similar devices controlled by an operator remotely, use 'remote submersibles.' ]]></note></mads>