Autonomous Temperature Line Acquisition System (ATLAS) is a taut–line mooring with sensors measuring surface winds, air temperature, relative humidity, sea surface temperature, and ten subsurface temperatures to a depth of 500 meters.
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Daily mean data are telemetered to shore in near real–time via the U.S. National Oceanic and Atmospheric Administration’s polar orbiting satellites and Argos data collection system. The standard ATLAS mooring has a design lifetime of one year, with over 500 different monitoring units having been deployed since 1984.