Development of Seafloor Sampling and Hydrothermal Detection Tools for Use in Ice-Covered Seas

OPP-01-07767建议作为探索性研究小额赠款(SGER)，开发新的采样和测量方法和工具，可部署在北冰洋冰盖下，用于2001年8月/9月美国和德国对加克尔海脊的联合考察。目前的方法，如疏浚，可能在冰层覆盖的水域不成功，因此首席调查员建议设计、测试和建造一种新的岩石采样器。他还提议对一种名为微型自主羽流记录器(MAPR)的热液监测仪进行改造。MAPR是由太平洋海洋环境实验室开发的，目的是增加机会或收集大洋中脊和火山系统的热液羽流数据。这一建议适合在SGER计划下考虑，因为岩石采样器尚未开发。无论是岩石采样器还是改装后的羽流记录器都从未在冰下进行过测试。因此，这些仪器符合SGER标准，即“关于未经测试和新颖想法的初步工作”。如果其中一台或所有仪器在冰下成功运行，那么北极计划将拥有几个新的廉价采样设备。

AbstractOPP-01-07767This proposal is being recommended as a Small Grant for Exploratory Research (SGER) to develop new sampling and measurement methods and tools that can be deployed under the Arctic Ocean ice cap for a joint U.S. - German expedition to the Gakkel Ridge in August/September 2001. The current methods, such as dredging, may not be successful in ice-covered waters, so the Principal Investigator is proposing to design, test and build a new rock sampler. He is also proposing to retrofit a hydrothermal monitor, known as the miniature autonomous plume recorder (MAPR). The MAPR was developed by the Pacific Marine Environmental Lab to increase opportunities or collecting hydrothermal plume data along mid-ocean ridge and volcanic systems.This proposal is appropriate for consideration under the SGER program because the rock sampler has not been developed. Neither the rock sampler nor the retrofitted plume recorder have ever been tested under ice. Therefore, the instruments meet the SGER criterion, "preliminary work on untested and novel idea." If one or all of the instruments perform successfully under ice, then the Arctic program will have several new and inexpensive sampling devises.