Seafloor Strain Patterns: Measurement System Validation

海底应变模式：测量系统验证

• 批准号: 8716392
• 负责人: Fred Spiess
• 金额: $ 19.99万
• 依托单位: University of California-San Diego Scripps Inst of Oceanography
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-12-01 至 1990-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8716392&HistoricalAwards=false
• 关键词: Seafloor; Strain; Patterns; Measurement; System

This is an award to carry an at sea validation of a system for measuring patterns of seafloor strain accumulation with centimeter accuracy over distances of kilometers. The system is particularly suitable to ridge crest studies and will help describe the manner in which the seafloor makes the transition from episodic motion to the more or less steady state motion that is characteristic of the entire plate. The method involves the emplacement of benchmarks on the seafloor on which transponders can be placed with great accuracy. The transponders are interrogated from a towed vehicle to which is also mounted a high accuracy sound velocity meter to convert travel times to distances. Most of the equipment has been built with other funds (non-NSF); and this award grants funds for a two week experiment in the San Nicolas Basin off S. California as the first seagoing test of the apparatus. This is an important experiment because it will test a new technique for making geodetic measurements on the sea floor; the development of such techniques are an important step in understanding sea floor tectonics and evolution.

这是一个在海上验证系统的奖项 用于测量海底应变累积模式， 厘米精度超过千米的距离。 该系统 特别适合山脊研究，并将有助于 描述海底过渡的方式 从偶发性运动到或多或少的稳态运动， 是整个板块的特征 该方法涉及在 可以非常精确地放置应答器的海底。 应答器从被牵引的车辆上进行询问， 还安装了一个高精度的声速计， 旅行时间到距离。 大部分设备已经建成 与其他基金（非NSF）;该奖项赠款资金， 两个星期的实验在圣尼古拉斯盆地关闭S。加州作为 该装置的首次海上试验。这是一个重要 因为它将测试一种新的技术， 海底大地测量;这种测量的发展 技术是了解海底的重要一步 地质构造与演化