Shipboard Acoustic Doppler Current Profiling on R/V Nathaniel B. Palmer and R/V Lawrence M. Gould

这项拟议的工作涉及在由美国南极计划运营的RVIB Nathaniel B.Palmer号和劳伦斯·M·古尔德号科考船上开发和维护舰载声学多普勒海流剖面仪(ADCP)计划。其目标是在一个采样稀少的偏远地区产生一个关于上层洋流速度的有质量控制的数据集，但这个数据集在全球海洋环流中发挥着重要作用。进一步的目标是制定正在进行的数据收集计划，以便能够用最少的人员和资源对其进行维护，并及时向公众提供观察结果。长期科学目标是测量德雷克海峡上层洋流的季节和年际变化，将这一信息与类似的温度观测结合起来，研究热交换的变化，并在各种时间和空间尺度上描述南大洋的速度结构。

This proposed work concerns the development and maintenance of a shipboard acoustic Doppler current profiler (ADCP) program on board the RVIB Nathaniel B. Palmer and the research vessel Laurence M. Gould, operated by the United States Antarctic Program. The objective is to generate a quality-controlled data set on upper ocean current velocities in a sparsely sampled and remote region, yet one that plays an important role in the global ocean circulation. Further goals are to develop the underway data collection program so that it can be maintained with a minimum of personnel and resources, and that the observations become publicly available in a timely manner. Long-term science objectives are to measure the seasonal and interannual variability of upper ocean currents within the Drake Passage, to combine this information with similar temperature observations to study the variability in the heat exchange, and to characterize the velocity structure in the Southern Ocean on a variety of time and space scales.