Daily acoustic presence of Antarctic blue whales within a 10 km radius of mooring AWI230-06, recorder AU0085, based on passive acoustic recordings in the Weddell Sea from March 2008 to December 2010

Acoustic presence data on Antarctic blue whales (Balaenoptera musculus intermedia) were obtained from passive acoustic monitoring (PAM) data collected at 66°01.13' S and 00°04.77' E, mooring AWI230-06, recorder AU0085, between March 2008 and December 2010. The passive acoustic recorder was of type AURAL (Autonomous Underwater Recorder for Acoustic Listening (AURAL; Model 2, Multi-Électronique) and attached to oceanographic deep-sea mooring AWI230-06 of the Hybrid Antarctic Float Observation System (HAFOS). It was deployed from March 2008 and December 2010, moored at a depth of 189 m and scheduled to record on a duty cycle of 5 min per 4 hours at a sample rate of 32,768 Hz. After recovery, the passive acoustic data were prepared for further analysis following the Standard Operating Procedures (SOP) for PAM data collected by the Ocean Acoustics Group of AWI according to Thomisch et al. (2023a, regarding definitions and terminology) and Thomisch et al. (2023b, with regard to data preparation procedures).

本数据集包含南极蓝鲸（Balaenoptera musculus intermedia）的声学存在数据，数据源自2008年3月至2010年12月期间，布设于南纬66°01.13′、东经00°04.77′的AWI230-06系泊浮标上的记录器AU0085所采集的被动声学监测（Passive Acoustic Monitoring, PAM）数据。该被动声学记录器为AURAL型（水下自主声学监听记录仪，Autonomous Underwater Recorder for Acoustic Listening, AURAL；型号2，Multi-Électronique制造），挂载于混合南极浮标观测系统（Hybrid Antarctic Float Observation System, HAFOS）的AWI230-06深海海洋学系泊浮标。该记录器于2008年3月布放、2010年12月回收，系泊深度为189米，采用每4小时运行5分钟的占空比模式进行声学采集，采样率设定为32768 Hz。记录器回收后，研究团队遵循AWI海洋声学小组制定的被动声学监测数据标准作业流程（Standard Operating Procedures, SOP），并参考Thomisch等人2023a年（关于定义与术语规范）及2023b年（关于数据预处理流程）的研究成果，完成了原始声学数据的预处理工作，以支撑后续分析研究。