ABSTRACT

Mountain geodynamics refers to multiple aspects of mountain building that include relief production and polygenetic landscape evolution caused by complex interactions of atmospheric, surface, and tectonic processes (Montgomery 1994; Koons 1995; Burbank et al. 1996; Bishop and Shroder 2000; Zeitler et al. 2001; Bishop et al. 2003, 2012). Numerous pathways and feedback mechanisms exist, as the topography partially governs climate, surface processes, and rock strength and uplift (Koons et al. 2002; Bishop et al. 2010). Researchers have long recognized that topography represents the structural manifestation of mountain geodynamics and have therefore focused on the analysis of digital elevation models (DEMs) to extract information about landforms, erosion and deposition, lithology, uplift and relief production, tectonic zones, and the nature of polygenetic landscape evolution. Spatial and morphometric

CONTENTS

Introduction ......................................................................................................... 189 Background .......................................................................................................... 191

Geomorphometry ........................................................................................... 191 Scale Concepts ................................................................................................ 193

Addressing Scale and Complexity ................................................................... 197 Spatial Representation ................................................................................... 197 Parameter Magnitude .................................................................................... 202 Anisotropy ....................................................................................................... 205 Scale Dependencies ........................................................................................ 207 Spatial Mapping and Organization ............................................................. 210 Spatiotemporal Dynamics ............................................................................. 211

Discussion and Conclusions .............................................................................. 219 References ............................................................................................................ 221

information is vital for understanding the role of specic surface processes in mountain geodynamics (e.g., mass movement, uvial erosion, and glaciation) and for investigating the controversies associated with climatic versus tectonic forcing (Raymo and Ruddiman 1992; Montgomery 1994; Snyder et al. 2000; Montgomery et al. 2001; Reiners et al. 2003; Jamieson et al. 2004). Furthermore, such information is critical for understanding the alpine critical zone and its ability to support and sustain ecosystems and resources in these rapidly changing environments (Baudo et al. 2007; Bishop et al. 2015).