The dynamics of high relief transitional landscapes

SGER：高起伏过渡景观的动力学威廉·J·莱因哈特孟菲斯大学-0639785摘要本研究的主要目的是通过一系列简单的物理实验来研究当地基准面对山地地形发展的作用。这些实验的动机是一个重大的转变，重点在地貌群落对调查的瞬态景观动态。瞬变景观是最常见的地形类型，对气候变化、人类活动和构造作用力敏感，并记录了它们的影响。本研究的目的是获得瞬态地形的定量措施，并帮助发展一个度量的识别瞬态签名的景观。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，从而模拟基准面下降或上升跨越新兴的地形。安装在头顶的超细雾化装置产生降雨。这些实验非常上镜，其中一个实验的教育视频可通过圣安东尼瀑布实验室网站向社区提供。

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.