US - Chile workshop and field visit: Late Quaternary alluvial fan systems in semiarid Chile: evolution and paleoclimate linkages.

美国-智利研讨会和实地考察：半干旱智利的晚第四纪冲积扇系统：演化和古气候联系。

• 批准号: 1133013
• 负责人: Jose Luis Antinao Rojas
• 金额: $ 2.4万
• 依托单位: Nevada System of Higher Education, Desert Research Institute
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-10-01 至 2012-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1133013&HistoricalAwards=false
• 关键词: US; Chile; workshop; field; visit

This U.S. - Chile award will support a small workshop on alluvial fan research, accompanied with a field visit to the semiarid region of central Chile. The conditions under which climate variability in arid and semiarid regions affects sediment transfer and deposition from hillslopes to alluvial landforms are well documented in only a few regions in the world. In order to successfully expand knowledge on this multidisciplinary subject, research collaborations in paleoenvironmental reconstruction, paleoclimate, pedology and geomorphology are needed. This project will link complementary research expertise in Chile (Universidad del Norte, Universidad de La Serena, and Universidad de Chile) and the US (Desert Research Institute, DRI). Additionally, this new collaboration will link alluvial processes and landforms to Quaternary climate variability and result in the development of joint research projects. DRI will contribute expertise on soil and chronological analyses of alluvial landforms in arid regions around the world, while the Chilean researchers will contribute extensive experience on South America paleoclimate and geomorphology. The workshop will be organized by Dr. Jose Antinao from DRI in collaboration with Drs. Antonio Maldonado, Rodrigo Riquelme, and Gabriel Vargas from Universidad de la Serena, Universidad del Norte, and Universidad de Chile, respectively. The multidisciplinary nature of the proposed workshop and field visit will promote field-based interactions between researchers and students from both countries and will involve one early-career PI and one graduate student from the US. Furthermore, this project will allow for a broader testing of conceptual geomorphic models for alluvial fan evolution. Currently most of these models are derived from Northern Hemisphere sites. A more precise calibration of variables involved in these models will have a positive impact in our ability to predict effects of future global change in arid and semiarid alluvial landscapes. Improved forecasts of the combined hydrologic, ecological and geomorphic response of hillslopes, and associated alluvial systems, are of high societal relevance. They allow for efficient planning of resource allocation and mitigation of natural hazards, which benefits a large, vulnerable population across the globe. This workshop is supported by the Office of International Science and Engineering, Americas Program and the Directorate for Geosciences, Division of Earth Sciences, Geomorphology and Land Use Dynamics Program.

这项美国 - 智利奖将支持有关冲积球迷研究的小型研讨会，并伴随着对中央智利半干旱地区的实地考察。 干旱和半干旱地区的气候变异性会影响从山坡到冲积地面的沉积物转移和沉积的条件，仅在世界上少数几个地区都得到了很好的证明。 为了成功地扩大有关这个多学科主题的知识，需要在古环境重建，古气候，培养和地貌方面进行研究合作。 该项目将链接智利（诺特德大学，塞雷纳大学和智利大学）和美国（DERD READIODT，DRI）的补充研究专业知识。 此外，这种新的合作将将冲积过程和地形与第四纪气候变异性联系起来，并导致联合研究项目的发展。 DRI将在世界各地干旱地区的土壤和年代学分析方面提供专业知识，而智利研究人员将在南美古气候和地貌学方面贡献丰富的经验。 该研讨会将由DRI的Jose Antinao博士与Drs合作组织。 Antonio Maldonado，Rodrigo Riquelme和Gabriel Vargas分别分别是De la Serena，Norte大学和智利大学。 拟议的研讨会和实地考察的多学科性质将促进来自两国的研究人员与学生之间的基于现场的互动，并将涉及一名早期职业PI和一名来自美国的研究生。 此外，该项目将允许对冲积风扇进化的概念地貌模型进行更广泛的测试。 目前，这些模型中的大多数来自北半球地点。 这些模型中涉及的变量的更精确的校准将对我们预测未来全球干旱和半干旱冲积景观变化影响的能力产生积极影响。 改进了山坡和相关冲积系统的水文，生态和地貌反应的预测，具有很高的社会相关性。 它们允许有效地计划资源分配和减轻自然危害，这使全球庞大的脆弱人群受益。 该研讨会得到了国际科学与工程，美洲计划和地球科学，地球科学部，地貌和土地使用动力学计划的支持。