Parent record: Flow patterns within Jervis Bay: Winter deployment of current meters

This record describes components of the 'Jervis Bay Baseline Studies' project conducted by the Department of Defence, CSIRO and Australian Defence Force Academy (ADFA). The initial aims of the project were to obtain current and wind observations from Jervis bay over a six week period in order to detail the wind driven circulation and provide a data set for comparison with the numerical modelling work being simultaneously undertaken. However, after this initial experiment it became clear that there were significant currents in the bay that are not simply related to direct wind forcing. Therefore, alternative mechanisms for driving the flow had to be investigated, through the measurement programs and data analysis, as well as through numerical modelling. The result was a series of approximately six separate experiments aiming to define the water circulation around the bay and through the bay entrance, to gain an understanding of the processes that drive the currents, and to investigate the influence of stratification on the nature of the currents.\n\nThe second of these six experiments concentrated on the flow patterns within the bay during the winter months, when the waters are only weakly thermally stratified. This winter mooring program was run as two deployments of current meters, from 10th July to 30th August and from 12th September to 30th October 1990, along with a meteorological station measuring winds and atmospheric pressure at Governor Head. [Given that this meteorological data bridges all six experiments, the data collected is described in a separate metadata record and will not be considered further.] \n\nTwo moorings were maintained with each deployment. In the first deployment (10/7/90 - 30/8/90) the south-central mooring contained 3 current meters and the northeast mooring 2 current meters. The second deployment (12/9/90 - 30/10/90) repeated the south-central mooring but the northeast mooring was moved south from near Green Point to off Honeymoon Bay.\n\nAs this is a parent record, no data is available to download. A pdf outlining the structure and hierarchy of metadata records relating to this project is available through this record. Also available is a pdf of a published working paper documenting this experiment and the results. There are four subsidiary records that directly relate to this parent, through which the data is provided (see hierarchical tree): \n6fed5f70-c336-11dc-9e24-00188b4c0af8\na1da6830-c344-11dc-9e24-00188b4c0af8\n45ede7c0-c3d2-11dc-8135-00188b4c0af8\n0b9e1780-c3d6-11dc-8135-00188b4c0af8

本元数据记录阐述了由澳大利亚国防部、联邦科学与工业研究组织（CSIRO）以及澳大利亚国防学院（ADFA）牵头实施的“杰维斯湾基线研究”（Jervis Bay Baseline Studies）项目的相关组成部分。本项目的初始目标为在六周周期内获取杰维斯湾的海流与风场观测数据，以详细阐明风驱动的环流机制，并为同期开展的数值模拟工作提供可用于对比的数据集。然而，在初始实验结束后，研究团队发现杰维斯湾内存在显著海流，且其并非仅由直接风强迫作用驱动。因此，需通过观测计划、数据分析以及数值模拟手段，探究驱动该海流的其他潜在机制。最终，项目组开展了共计约六组独立实验，旨在明确杰维斯湾及其湾口周边的水体环流特征，解析海流的驱动过程，并探究层化效应对海流特性的影响。

六组实验中的第二组聚焦于冬季时段杰维斯湾内的流场特征——此时湾内水体仅存在较弱的热层化现象。本次冬季锚定观测计划分为两阶段布放海流计：第一阶段为1990年7月10日至8月30日，第二阶段为1990年9月12日至10月30日；同时在总督岬（Governor Head）布设了气象站，用于观测风场与大气压力。[鉴于该气象观测数据覆盖全部六组实验，其相关信息已在独立元数据记录中详述，此处不再赘述。]

每个观测阶段均布设两组锚定浮标。在第一阶段（1990年7月10日至8月30日），湾中南部锚点布设了3台海流计，东北部锚点布设了2台海流计；第二阶段（1990年9月12日至10月30日）沿用了湾中南部的锚点布设方案，但将东北部锚点从绿点（Green Point）附近向南迁移至蜜月湾（Honeymoon Bay）外海区域。

本记录为项目母元数据记录，不提供可下载的原始数据。通过本记录可获取两份PDF文档：一份用于说明本项目相关元数据记录的结构与层级关系，另一份为已发表的工作论文，用于阐述本次实验及其研究成果。本母记录关联有四条子元数据记录，原始数据需通过这些子记录获取（详见层级树）：
6fed5f70-c336-11dc-9e24-00188b4c0af8
a1da6830-c344-11dc-9e24-00188b4c0af8
45ede7c0-c3d2-11dc-8135-00188b4c0af8
0b9e1780-c3d6-11dc-8135-00188b4c0af8