An Electronic Upper Layer Temperature Profiler - A Reusable XBT

这个项目是科罗拉多大学的威廉·埃默里和伍兹霍尔海洋研究所的阿尔伯特·布拉德利的合作成果。这是一项开发电子测深仪（EBT）的可行性研究，该测深仪将服务于与目前使用的消耗性xbt类似的目的。装有传感器的探测器将从一艘移动的船上释放出来。它在水柱中自由落体，收集并储存温度和压力数据到特定的深度。然后将探针绕回并通过附加的合成线回收。恢复后，存储的数据将被转储，仪器将为其他部署做好准备。与XBT相比，可重复使用EBT的预期优势在于，通过重复使用相同的传感器，可以提高数据质量，直接测量压力随深度的变化，降低后勤成本，并可能在志愿观测船上使用。最近推出的非常薄和强，长链聚合物线，表明这种可回收探针现在是可行的。该项目将产生一份技术可行性报告，并可能成为完整仪器开发提案的机械工程概念验证基础。

This project is a collaborative effort between William Emery at the University of Colorodo and Albert Bradley at Woods Hole Oceanographic Institution. It is a feasibility study for developing an electronic bathythermograph (EBT) that would serve a similar purpose as presently-used expendable XBTs. A probe with sensors would be released from a moving ship. It free-falls through the water column, collecting and storing temperature and pressure data to some specified depth. The probe would then be spooled back in and retrieved by an attached synthetic line. After recovery, stored data would be dumped and the instrument prepared for additional deployments. Anticipated advantages of the reusable EBT over the XBT are improved data quality from repeating use of the same sensors, direct measurment of pressure as a function of depth, reduced logistic costs, and potential use on volunteer observing ships. The recent introduction and availability of very thin and strong, long-chain polymer line, suggests that such retrievable probes are now feasible. The project will result in a technical feasibility report, and might possibly be the mechanical engineering proof-of-concept basis for a full instrument development proposal.