Acquisition of High-Resolution Acoustic-Imaging Instruments for Sediment Research at the Large Lakes Observatory

0421091科尔曼明尼苏达大学杜卢斯的主要研究仪器奖为大湖天文台（UMD/LLO）购买声学成像仪器提供资金，包括侧扫声纳，扫频（啁啾）海底剖面系统，牵引车和绞车系统，以及用于数据采集和分析的相关硬件和软件。 这些仪器将作为美国湖沼研究界的共用设施进行管理，以增强目前由UMD/LLO维护的现有取芯和海底测绘工具。 预计这些数据将用于研究湖沼过程、古气候研究、底栖生境研究的研究项目，并用于确定世界各地湖泊的适当取样地点。 此次收购的更广泛影响，除了为美国研究人员和学生提供共享使用资源外，还包括培训学生使用五大湖的尖端调查技术，以及应用于一系列具有重大社会意义的研究课题，包括气候变化，湖泊环流和湖泊生物群的栖息地研究。这项建议得到了NSF海洋科学部的支持。***

0421091ColmanThis Major Research Instrumentation award to University of Minnesota Duluth provides funds for acquisition of acoustic imaging instrumentation by the Large Lakes Observatory (UMD/LLO), including a side-scan sonar, a swept-frequency (chirp) subbottom profiling system, a towing vehicle and winch system, and associated hardware and software for data acquisition and analysis. These instruments will be managed as a shared-use facility for the U.S. limnological research community, augmenting existing tools for coring and seafloor mapping that are presently maintained by UMD/LLO. It is anticipated that they will be applied to research projects studying limnological processes, paleoclimate studies, studies of benthic habitats, and for identification of appropriate sampling sites in lakes around the world. The broader impacts of the acquisition, in addition to providing a shared-use resource for U.S. researchers and students, including training students in use of cutting edge survey technology on the Great Lakes, as well as application to an array of research topics of significant societal relevance, including climate change, lake circulation, and habitat research on lake biota. This proposal is supported by the Division of Ocean Sciences at NSF. ***