Geospatial organization of fluvial landforms in a gravel-cobble river: Beyond the riffle-pool couplet

  title={Geospatial organization of fluvial landforms in a gravel-cobble river: Beyond the riffle-pool couplet},
  author={Joshua R. Wyrick and Gregory B. Pasternack},

Flood‐driven topographic changes in a gravel‐cobble river over segment, reach, and morphological unit scales

Regulated rivers generally incise below dams that cut off sediment supply, but how that happens and what the consequences are at different spatial scales is poorly understood. Modern topographic

Bed and width oscillations form coherent patterns in a partially confined, regulated gravel–cobble-bedded river adjusting to anthropogenic disturbances

Abstract. Understanding the spatial organization of river systems in light of natural and anthropogenic change is extremely important because it can provide information to assess, manage, and restore

Hierarchically nested river landform sequences. Part 1: Theory

Past river classifications use incommensurate typologies at each spatial scale and do not capture the pivotal role of topographic variability at each scale in driving the morphodynamics responsible

Hierarchically nested river landform sequences. Part 2: Bankfull channel morphodynamics governed by valley nesting structure

River corridors exhibit landforms nested within landforms repeatedly down spatial scales. In Pasternack et al. ( ), a new, scale‐independent, hierarchical river classification was developed that uses


Assemblages of geomorphic units: A building block approach to analysis and interpretation of river character, behaviour, condition and recovery

A geomorphic unit is a landform that has been created and reworked by a particular set of earth surface processes. Each geomorphic unit has a particular morphology and sediment properties.

Analyzing bed and width oscillations in a self-maintained gravel-cobble bedded river using geomorphic covariance structures

Author(s): Brown, RA; Pasternack, GB | Abstract: Abstract. This paper demonstrates a relatively new method of analysis for stage dependent patterns in meter-scale resolution river DEMs, termed

Hydro- and morphodynamics of rifïle-pool sequences in the middle Elwha River, Washington, USA

Riffle-pool sequences are ecologically important features of mild-sloped gravel-bed rivers. They are composed of alternating vertical bed undulations and are often forced by variations in width. The

Geomorphic covariance structure of a confined mountain river reveals landform organization stage threshold

Significant growth in mountain rivers research since 1990 has promoted the concept that canyon‐confined mountain rivers have complex topographic features nested from base‐ to flood‐stages due to



Geomorphology, ecology and river channel habitat: mesoscale approaches to basin-scale challenges

The physical component of river channel (instream) habitat is of acknowledged significance, particularly in headwater streams; furthermore, physical habitats have been heavily impacted by human needs

Secondary flows and the pool‐riffle unit: A case study of the processes of meander development

The major bedforms of gravel bed rivers, whether braided, meandering or straight, may be usefully resolved into pool-riffle units, each comprising a single scour pool together with an associated

Measures of Physical Heterogeneity in Appraisal of Geomorphic River Condition for Urban Streams: Twin Streams Catchment, Auckland, New Zealand

This investigation created and tested a template to rapidly assess geomorphic river condition in urban settings. This extension to the River Styles Framework® (Brierley and Fryirs, 2005) entailed

Hydraulically related hydro‐morphological units: description based on a new conceptual mesohabitat evaluation model (MEM) using LiDAR data as geometric input

A new conceptual mesohabitat evaluation model was developed and applied to the Kamp River, Austria. The model uses a functional linkage of three parameters (velocity, depth and bottom shear stress)

The development of hydraulic and geomorphic complexity in recently formed streams in Glacier Bay National Park, Alaska

Geomorphic and hydraulic complexity within five streams representing 200 years of stream development were examined in Glacier Bay National Park, Alaska. Channel geomorphic units (CGUs) were mapped

Stability of the pool-riffle sequence in changing river channels

The pool-riffle sequence as an important feature of river channels was described by Leopold et al. (1964) to occur with a spacing of five to seven times the channel width. Subsequent work has

A hierarchical approach to classifying stream habitat features

Abstract We propose a hierarchical system of classifying stream habitats based on three increasingly fine descriptions of the morphological and hydraulic properties of channel geomorphic units. We