Collaborative Proposal: Development of a Permanent Seafloor Geoelectric/Geomagnetic Observatory

这个海洋科学技术开发项目包括在夏威夷2号观测站（H2O）设计、建造、测试和安装一个海底地磁观测站，该观测站位于加利福尼亚和夏威夷之间5000米深的水中。要安装的地磁仪器符合INTERMAGNET的数据精度和定时标准。它将包括一个delta Idelta D磁力计，一个用于绝对方向测量的陀螺罗盘，一组悬浮磁体变差计，辅助环境传感器，以及一个利用电极斩波技术的独立地电观测站。电力将由H2O提供，实时双向通信将允许从陆地控制天文台并将数据传输给用户。该站点的数据将通过INTERMAGNET免费提供给科学界。地磁观测站也将成为未来在其他地点安装的原型。

This ocean science technology development project involves the design, construction, testing, and installation of a seafloor geomagnetic observatory at the Hawaii-2 Observatory (H2O) site located midway between California and Hawaii in 5000 m of water. The geomagnetic instrumentation to be installed meets INTERMAGNET standards for data accuracy and timing. It will consist of a delta Idelta D magnetometer, a gyrocompass for absolute direction measurement, a set of suspended magnet variometers, auxiliary environmental sensors, and a separate geoelectric observatory utilizing electrode chopping techniques. Power will be supplied by H2O and real-time, two-way communications will allow both control of the observatory from land and transmission of data to the user. The data from this site will be made freely available to the scientific community through INTERMAGNET. The geomagnetic observatory will also be a prototype for future installations at other sites.