Passive acoustic monitoring data recorded by the Perennial Acoustic Observatory in the Antarctic Ocean (PALAOA), Antarctica, in 2021@en

Passive acoustic monitoring (PAM) data were collected by the Perennial Acoustic Observatory in the Antarctic Ocean (PALAOA) near Neumayer Station III at 70.4261° S, 8.2161° W, on the Ekström ice shelf, Antarctica. This long-term observatory was set up in 2005 (Kindermann et al. 2007, hdl:10013/epic.30936.d001). After modifications of the hardware setup in December 2014, PALAOA collected passive acoustic data using a Sono.Vault recorder (manufactured by develogic GmbH, Hamburg, Germany). From 01 January 2021 to 31 December 2021, PALAOA recorded continuously at a sample rate of 96 kHz, at 155 m depth. Further details about the data acquisition and processing of this data set can be found in the accompanying metadata file (see Additional metadata) as well as the data processing report (see Data Processing Report). Passive acoustic data archived here represent data processing Level 1+, according to the standards defined in the associated Standard Operating Procedure (SOP) Glossary (Thomisch et al. 2023a). Further information on data processing with regard to data preparation and standardization can be found in the associated SOP Part 1: Data preparation and standardization (Thomisch et al. 2023b). We thankfully acknowledge the support of the Neumayer Station overwintering teams, and in particular of the radio operators, in maintaining and operating PALAOA.本数据集的被动声学监测（Passive Acoustic Monitoring, PAM）数据，由设于南极埃克斯特龙冰架、南纬70.4261°、西经8.2161°且邻近诺伊迈尔三世站的南极海域长期声学观测站（Perennial Acoustic Observatory in the Antarctic Ocean, PALAOA）采集。该长期观测站于2005年建成（Kindermann等，2007，hdl:10013/epic.30936.d001）。2014年12月对硬件配置进行升级改造后，PALAOA采用由德国汉堡德维洛吉克有限公司（develogic GmbH）生产的Sono.Vault型记录仪采集被动声学数据。2021年1月1日至2021年12月31日期间，PALAOA以96 kHz的采样率、155 m的布设深度进行连续录音。有关本数据集的数据采集与处理的更多细节，可参阅随附的元数据文件（详见“附加元数据”）及数据处理报告（详见“数据处理报告”）。本存档的被动声学数据符合相关标准操作流程（Standard Operating Procedure, SOP）术语表中定义的规范，属于1+级数据处理产物（Thomisch等，2023a）。有关数据制备与标准化的进一步数据处理信息，可参阅配套的《SOP 第1部分：数据制备与标准化》（Thomisch等，2023b）。我们衷心感谢诺伊迈尔站越冬团队，尤其是无线电操作员，对PALAOA的维护与运行提供的支持。