Scientific Research Conducted on BROKE-West: Voyage 3 of the Aurora Australis, 2005-2006

The BROKE-West survey was conducted on voyage 3 of the Aurora Australis during the 2005-3006 season. It was intended to be a comprehensive biological and oceanographic survey of the region between 30 degrees and 80 degrees east.A number of metadata records providing more detail about aspects of the voyage are linked off this metadata record. Copies of the public summaries from the underlying ASAC projects of the voyage are below:A planned acoustic biomass survey for krill in CCAMLR Division 58.4.2 (South West Indian Ocean) in January-March 2006 will produce the data for a revised catch limit on the krill fishery. The survey will utilise a standardised design as adopted in previous biomass surveys in the CCAMLR Area and will consist of 11 parallel transects between 30 degrees and 80 degrees east. A full suite of ecological measurements will be conducted: physical and chemical oceanography, primary productivity, microbial diversity, zooplankton distribution and abundance, krill distribution, abundance and demographics, fish distribution, abundance and genetics, and seabird and cetacean distribution.The three-dimensional ocean circulation from the 30 to 80 degrees E and 200nm from Antarctica is being studied through the use of direct measurements of velocity, temperature, salinity, oxygen, nutrients , chloro-flourocarbons, dissolved inorganic carbon and bio-geochemical cycles. This multi-disciplinary experiment (see also project 2655) will determine the circulation of the region, its relation to bio-geochemical cycles, carbon cycle and ecosystems. The temperature and salinity data will also be used to test for long term trends that could be related to climate change.This work was completed as part of ASAC projects 2655 and 2679 (ASAC_2655, ASAC_2679).A pdf copy of the proposed voyage track is available for download from the provided URL.Two csv files detailing the locations (latitudes and longitudes), plus times and dates (UTC) of the trawl and ctd stations on the BROKE-West voyage are available for download from the provided URL. Additional comments (where applicable) about each station are also provided.

BROKE-West科考航次于2005-2006航季依托“南极光号”（Aurora Australis）第3航次开展，旨在对东经30°至80°海域开展系统性生物与海洋学调查。
本元数据记录关联了多条可提供航次更多细节的元数据记录。本次航次所属南极科学咨询委员会（Antarctic Scientific Advisory Committee，ASAC）下属项目的公开摘要副本如下：
2006年1-3月，计划在南极海洋生物资源养护委员会（Commission for the Conservation of Antarctic Marine Living Resources，CCAMLR）58.4.2分区（西南印度洋）开展南极磷虾声学生物量调查，该调查将为磷虾渔业的修订捕捞限额提供数据支撑。本次调查将沿用CCAMLR海域既往生物量调查采用的标准化设计，设置东经30°至80°间的11条平行断面。
本次科考将开展全套生态测量工作，涵盖物理与化学海洋学、初级生产力、微生物多样性、浮游动物分布与丰度、磷虾分布、丰度及种群结构、鱼类分布、丰度与遗传学，以及海鸟与鲸类分布。
针对东经30°至80°、距南极200海里范围内的三维海洋环流，研究团队将通过直接测量流速、温度、盐度、溶解氧、营养盐、氯氟烃、溶解无机碳，以及生物地球化学循环开展研究。这项多学科实验（另参见项目2655）将阐明该海域的环流特征、其与生物地球化学循环、碳循环及生态系统的关联。其中温盐数据还将用于检验可能与气候变化相关的长期趋势。
本工作作为ASAC项目2655与2679（ASAC_2655、ASAC_2679）的一部分完成。
本次规划航次航线的PDF副本可通过提供的URL下载。另有两份CSV文件，详细记录了BROKE-West航次的拖网站位与温盐深（Conductivity, Temperature, Depth, CTD）站位的位置（纬度与经度）、时间与日期（协调世界时UTC），同时提供了各站位的附加说明（如适用）。