The dynamics of high relief transitional landscapes

孟菲斯大学EAR-0639785ABSTRACT拟议研究的主要目标是通过一系列简单的物理实验来调查当地基准面在山地地形发展中的作用。这些实验的动机是地貌群落内的重点向瞬时景观动态调查的重大转移。过渡地貌是最常见的地形类型，对气候变化、人类活动和构造强迫的影响很敏感，并记录了这些影响。这项研究旨在获得瞬变地形的定量测量，并帮助制定识别地形中瞬变特征的度量标准。该实验装置是一个侵蚀箱，其中两个相对的面板能够独立滑动，因此可以模拟基准面在新兴地形上的下降或上升。安装在头顶上的超细喷雾装置产生降雨。这些实验非常上镜，其中一个实验的教育视频可以通过圣安东尼瀑布实验室的网站向社区提供。

SGER: The Dynamics of High Relief Transitional LandscapesWilliam J. ReinhardtUniversity of MemphisEAR-0639785ABSTRACTThe primary goal of the proposed research is to investigate via a series of simple physical experiments the role of local base-levels on the development of mountainous topography. These experiments are motivated by a major shift in focus within the geomorphic community towards investigation of transient landscape dynamics. Transient landscapes are the most common type of terrain and are sensitive to, and record the influence of, climate change, human activities and tectonic forcing. This research aims to derive quantitative measures of transient topography and aid in the development of a metric for the recognition of a transient signature in the landscape. The experimental apparatus is an erosion box in which two opposing panels are able to slide independently, so simulating base-level fall or rise across an emerging topography. An ultra-fine misting apparatus mounted overhead generates rainfall. The experiments are highly photogenic and an educational video of one experiment is available to the community via the St. Anthony Fall Laboratory website.