PALAOA: The Perennial Acoustic Observatory in the Antarctic Ocean—Real-Time Eavesdropping on the Antarctic Underwater Soundscape

TitlePALAOA: The Perennial Acoustic Observatory in the Antarctic Ocean—Real-Time Eavesdropping on the Antarctic Underwater Soundscape
Publication TypeBook Chapter
Year of Publication2016
AuthorsKlinck, Holger, Kindermann Lars, and Boebel Olaf
EditorL. Au, Whitlow W., and O. Lammers Marc
Book TitleListening in the Ocean
Pagination207-219
PublisherSpringer New York
CityNew York, NY
ISBN Number978-1-4939-3176-7
EndNote Rec Number11023
Abstract

The Perennial Acoustic Observatory in the Antarctic Ocean (PALAOA) was developed to study the underwater vocal behavior of cetaceans and pinnipeds and to monitor ambient noise levels in the Southern Ocean. Establishing an autonomous long-term observatory in Antarctica is challenging mainly because of the harsh weather conditions and logistic constraints. The project goal was to build an autonomously operating, passive-acoustic observatory which allows scientists (1) to reliably and continuously record the Antarctic underwater soundscape year-round, (2) to record all vocalizations produced by marine mammals in the study area (frequency range of the recordings: 10 Hz to 96 kHz), (3) to locate vocalizing marine mammals and other underwater sound sources, (4) to obtain information on ambient noise levels in the area, and (5) to access and analyze the incoming acoustic data stream in real time at the Alfred Wegener Institute for Polar and Marine Research (AWI) located in Bremerhaven, Germany.