CCS - Saildrone 2017 San Francisco Bioacoustic Data

Project Overview: A range of solutions will be required to reach globally agreed emissions reductions targets for carbon dioxide (CO2). Carbon capture and storage (CCS) is part of the suite of technologies that will contribute to lowering atmospheric emissions of CO2 from Australia's energy system. There are a wide variety of technologies at various stages of technical and commercial readiness, with more development underway for cost effective CO2 capture and storage. Our research will provide new knowledge to inform cost-efficient measurement, monitoring and verification (MMV) of the environment of CCS projects in coastal waters.\n\n--o--\nThese are data from the 2017 San Fransisco sea trials trials (09-12-2017 to 15-12-2017)\n\nThe WBT Mini echosounders were installed by Saildrone in San Francisco in November 2017 on two platforms – SD1007, SD1008. CSIRO staff worked with Saildrone to ensure correct operation and develop low pass filters that significantly improved noise performance. The platforms were tested in-water in San Francisco bay. A rudimentary calibration was make by suspending a reference sphere of known reflectivity beneath the transducers. The calibration was not exhaustive as this was done in a high current situation in less than ideal depths but served to confirm that the echosounders were operating correctly. The commissioning calibration was followed up with a comprehensive calibration of the acoustic systems in Hobart on the 24th and 26th of March (section 2.3.1). Sea trials were conducted in December 2017 open waters adjacent to San Francisco (Section 3.1). On March 28th the Saildrones commenced an extended trail heading from Hobart along the eastern seaboard of mainland Australia. Data were recorded using the internal ‘autonomous mode’ logging module that records to internal flash memory via the low power on-board computer.

项目概述：为达成全球共识的二氧化碳（carbon dioxide, CO₂）减排目标，需配套一系列解决方案。碳捕获与封存（carbon capture and storage, CCS）是助力降低澳大利亚能源系统向大气排放CO₂的技术组合之一。当前已有多种处于不同技术与商业化成熟度阶段的相关技术，且针对经济高效的CO₂捕获与封存技术的研发工作仍在持续推进。本研究将为沿海海域CCS项目环境的经济高效测量、监测与验证（measurement, monitoring and verification, MMV）提供新的认知支撑。

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本数据集包含2017年旧金山海试（2017年12月9日至15日）的相关数据。

2017年11月，Saildrone公司在旧金山为两艘航行平台（编号SD1007、SD1008）搭载了WBT Mini回声测深仪（WBT Mini echosounders）。澳大利亚联邦科学与工业研究组织（Commonwealth Scientific and Industrial Research Organisation, CSIRO）的科研人员与Saildrone公司合作，确保设备正常运行，并开发了可显著改善噪声性能的低通滤波器。两艘平台在旧金山湾内开展了水上测试。研究人员通过在换能器下方悬挂已知反射率的参考球，完成了初步校准。由于本次校准是在海流湍急且水深条件欠佳的环境中开展，因此未进行全面校准，但足以验证回声测深仪运行正常。随后于3月24日与26日在霍巴特对声学系统开展了全面校准（详见2.3.1节）。2017年12月，研究团队在旧金山邻近的开阔海域开展了海试（详见3.1节）。3月28日，两艘航行平台从霍巴特出发，沿澳大利亚大陆东海岸开展了长距离试验。数据通过内置的"autonomous mode"记录模块进行存储：该模块依托低功耗机载计算机将数据写入内部闪存。