Aurora Australis Voyage 2 1996-97 Underway Data

This dataset contains the underway data collected during the Aurora Australis Voyage 2 1996-97. This voyage departed Hobart for Casey and then travelled to Davis after completing some marine science research. Underway (meteorological, thermosalinograph and bathymetric) data are available online via the Australian Antarctic Division Data Centre web page (or via the Related URL section). For further information, see the Marine Science Support Data Quality Report via the Related URL section. From the voyage leader's report:Voyage 2 of the 1996-97 season left Hobart during the early evening of 26 September 1996 and returned there nearly nine weeks later after delivering personnel and cargo to Casey and Davis and conducting a variety of marine science programs.All activities assigned to the voyage at Casey and Davis were achieved in full, however the failure of an engine coupling when near Casey early in the voyage significantly reduced the vessel's ability to break ice and that, combined with what was a particularly heavy year for ice, meant that much of the marine science program could not be achieved.Twenty people were delivered to Casey, 37 to Davis, two to Zhong Shan and, within a week of the ship departing to Davis, 28 people had been delivered to Mawson by air. All 86 people were thus able to start a wide-variety of summer programs on the continent on schedule.A small amount of cargo was delivered to Casey, while at Davis the annual resupply of the station was carried out across the fast ice. Mawson and the Chinese station, Zhong Shan, also received small amounts of cargo delivered by air from Davis.Had the voyage returned to Hobart for repairs when the couple failed at Casey then transit times required to and from Tasmania, plus any time required to repair the coupling, would have meant that no "ship-stopped" marine science would have been accomplished at all. Despite the difficulties, useful work was carried out in a number of fields, particularly glaciology and seal research programs.Due to very heavy ice conditions caused in part by the presence of very large icebergs in Prydz Bay, an unusual route was used to exit the region with the ship travelling clockwise around the south part of the bay before departing the area via the Fram Bank - an area that has caused significant problems for ANARE shipping in the past.As a result of the ice conditions and engine problems, the ship arrived back in Hobart on 24 November, 11 days late. Given the considerable difficulties experienced, the overall program "load"" carried by the voyage and the impact the problems experienced could have had on the 1996-97 season as a whole, the overall result can be considered to have been generally satisfactory, although the loss of a large part of the planned marine science program was of great disappointment to all onboard.

本数据集包含1996-1997年度南极光号（Aurora Australis）第2航次采集的航行途中观测数据。该航次从霍巴特（Hobart）启航，前往凯西站（Casey），完成部分海洋科学研究工作后，继续驶往戴维斯站（Davis）。航次期间采集的气象数据、船载温盐测量仪（thermosalinograph）数据与测深（bathymetric）数据，均可通过澳大利亚南极局（Australian Antarctic Division）数据中心网页或相关链接板块在线获取。如需进一步信息，请通过相关链接板块查阅《海洋科学支持数据质量报告》。

据航次领队报告：1996-1997年度第2航次于1996年9月26日傍晚从霍巴特启航，在向凯西站和戴维斯站运送人员与物资，并开展多项海洋科学考察项目后，于近九周后返回霍巴特。本航次在凯西站和戴维斯站的全部既定任务均已完成，但航次初期在凯西站附近发生的发动机联轴器（engine coupling）故障，大幅削弱了本船的破冰能力；加之当年海冰异常厚重，导致大部分海洋科学考察计划未能实施。

本次航次共向凯西站运送20名人员，向戴维斯站运送37名，向中山站（Zhong Shan）运送2名；在船舶驶往戴维斯站后的一周内，另有28名人员通过航空方式被运送至莫森站（Mawson）。最终全部86名人员均按计划如期开启了南极大陆上各类夏季科考项目。

凯西站接收了少量物资，戴维斯站则通过固定冰（fast ice）完成了年度站区物资补给。莫森站与中国南极中山站也接收了从戴维斯站通过航空运输的少量物资。

倘若本航次在凯西站发生联轴器故障后返回霍巴特进行维修，那么往返塔斯马尼亚所需的航行时间加上联轴器维修时间，将导致本航次完全无法开展任何"ship-stopped"（船载作业）类海洋科学研究。尽管遭遇诸多困难，本航次仍在多个领域完成了有价值的工作，尤其是冰川学（glaciology）与海豹科考项目。

由于普里兹湾（Prydz Bay）内存在大量巨型冰山，导致海冰异常厚重，本航次采用了非常规航线驶离该区域：船舶顺时针绕行海湾南部，随后经由弗拉姆浅滩（Fram Bank）驶离——该区域过往曾给澳大利亚南极研究探险队（ANARE）的航运作业带来严重阻碍。

受海冰状况与发动机故障影响，本船于11月24日返回霍巴特，比原定计划延误11天。综合考量本航次遭遇的重重困难、承载的全部任务，以及此次故障可能对1996-1997年度整体科考季造成的影响，本次航次的整体成果仍可被视为基本令人满意；尽管原定海洋科学考察计划的大幅落空令全体船员与科考人员深感遗憾。