US-GERMANY workshop and joined field survey in the Arctic: Initiating a new collaboration with the COPER group (Alfred-Wegener-Institute) through a joined field survey.
US-GERMANY workshop and joined field survey in the Arctic: Initiating a new collaboration with the COPER group (Alfred-Wegener-Institute) through a joined field survey.
批准号:
1426661
负责人:
Nina Stark
金额:
$4.34万
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
2014
资助国家:
美国
项目状态:
已结题
起止时间:
2014-07-01 至 2015-06-30
中文摘要
非技术性解释这项建议要求为Pi Stark和一名美国研究生提供旅费,以便他们参加即将进行的COPER(沿海永久冻土侵蚀、有机碳和营养物质向北极近岸地区释放)实地考察,在德国波茨坦的Alfred-Wegener研究所进行实地考察,并为随后的岩土实验室实验进行岩土现场剖面图和沉积物取样,作为COPER小组预定进行的地貌、沉积学、地质和地球化学调查的补充。拟议的研究、协作和后续研究工作将有助于填补有关北极海岸侵蚀和北极海岸线长期发展方面的知识空白。这些成果将改善对气候变化对北极影响的评估,以及制定保护环境和栖息地的对策。所获得的经验将被转移到PiStark?S海岸和海洋岩土工程课程,并将使学生了解极地地区新兴的海岸岩土工程领域。拟议的合作工作将拓宽对极地海岸地区岩土调查战略和侵蚀过程的知识,也将适用于工业或其他研究问题,并可能为在沿海极地地区进行更具成本和时间效益的岩土调查铺平道路。气候变化和由此引起的极地地区的变化是科学、工程和社会最具挑战性和公认的现代问题之一。永冻层的快速变化肯定是最紧迫的问题之一,包括对海岸沉积物的物理和岩土性质的影响,以及由此对海岸侵蚀造成的后果。然而,治理北极海岸侵蚀的过程仍然知之甚少。可能影响北极海岸侵蚀的因素之一是,随着永冻层水平的变化,近岸区沉积物的岩土性质发生变化,这一因素在以往的研究中没有得到解决。德国波茨坦阿尔弗雷德-韦格纳研究所COPP小组(沿海永久冻土侵蚀、有机碳和养分向北极近岸地带的释放)的首席科学家Hugues Lantuit博士已经认识到COPP研究中的这一知识差距,并发起了与弗吉尼亚理工大学土木与环境工程助理教授PI博士的讨论,Nina Stark博士专门从事沿海地区的土工现场测量。兰图伊特将在探险期间提供基础设施和支持,共同监督美国研究生,并为调查规划和后续联合出版物共享COP数据。该数据集将通过对样本和联合出版物的后续测试确保长期合作,并将作为一项更大规模研究的概念验证,目的是在海岸侵蚀方面对北极近岸地带进行地质技术调查。这项拟议的工作还将使一名美国研究生能够深入了解北极和国际研究,并可能为使极地海岸环境的地球工程调查成为皮斯塔克?S未来的研究重点之一铺平道路。
英文摘要
a non-technical explanation This proposal requests travel funds for PI Stark and an U.S. graduate student to join the upcoming COPER (Coastal permafrost erosion, organic carbon and nutrient release to the Arctic nearshore zone, at the Alfred-Wegener-Institute in Potsdam, Germany) field expedition to the Southern Beaufort Sea, and conduct geotechnical in-situ profiling and sampling of sediment for following geotechnical laboratory experiments as a complement to the scheduled geomorphological, sedimentological, geological and geochemical investigations of the COPER group. The proposed study, collaboration and following research efforts will contribute to fill the gaps of knowledge regarding coastal erosion in the Arctic and long-term development of Arctic coastlines. The results will improve the assessments of impacts of climate change on the Arctic, and the development of countermeasures to secure environments and habitats. The gained experiences will be transferred into PI Stark?s Coastal and Marine Geotechnics classes, and will make students aware of the emerging field of coastal geotechnical engineering in the polar regions.a technical description The proposed collaborative work will widen the knowledge of geotechnical survey strategies and erosion processes in polar coastal zones, will be applicable also for industrial purposes or other research questions, and might pave the way for more cost- and time-efficient geotechnical surveys in the coastal polar zones.Climate change and the resulting change of the polar regions is one of the most challenging and recognized modern issues for sciences, engineering, as well as society. Rapid changes in the permafrost are certainly one of the most pressing issues, including the impact on physical and geotechnical coastal sediment properties, and the resulting consequences for coastal erosion. Nevertheless, the processes governing Arctic coastal erosion are still poorly understood. One of the factors that potentially influences coastal erosion in the Arctic, but has not been addressed in previous studies, is the impact of changes in geotechnical properties ofthe sediments in the nearshore zone following variations in the permafrost level. Dr. Hugues Lantuit, chief scientist of the COPER group (Coastal permafrost erosion, organic carbon and nutrient release to the Arctic nearshore zone, at the Alfred-Wegener-Institute in Potsdam,Germany) has recognized this gap of knowledge within the COPER studies, and initiated discussions with PI Dr. Nina Stark, assistant professor in Civil and Environmental Engineering at Virginia Tech, who is specialized on geotechnical field surveying in coastal zones. Lantuit will provide infrastructure and support during the expedition, co-supervise the U.S. graduate student, and share COPER data for survey planning and following joined publications. The data set will secure long-term collaborations via following testing of the samples and joined publications, and will serve as a proof-of-concept for a larger study aiming for the geotechnical investigation of the Arctic nearshore zone with regard to coastal erosion. The proposed work will also allow insights into Arctic and international research for a U.S. graduate student, and will possibly pave the way to make geotechnical investigations of polar coastal environments one of PI Stark?s future research foci.
期刊论文(0)
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会议论文
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