Collaborative Research: Construction of a Permanent Geoelectric/Geomagnetic Observatory on the Seafloor

这一海洋科学技术发展项目涉及在位于加州和夏威夷之间5000米水深的夏威夷-2观测站（H2O）设计、建造、测试和安装一个海底地磁观测站。将安装的地磁仪器符合INTERMAGNET的数据准确性和定时标准。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、一套悬挂式磁变仪、辅助环境传感器和一个利用电极斩波技术的单独地电观测台。电力将由H2O提供，实时双向通信将允许从陆地控制观测台并将数据传输给用户。该网站的数据将通过INTERMAGNET免费提供给科学界。地磁观测台也将成为今后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.