Articles | Volume 10, issue 3
https://doi.org/10.5194/esurf-10-383-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esurf-10-383-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
03 May 2022
Research article |
| 03 May 2022
| 03 May 2022
The direction of landscape erosion
Colin P. Stark
CORRESPONDING AUTHOR
BlueMarbleSoft, Kyushu, Japan
Gavin J. Stark
Department of Computer Science and Technology, University of
Cambridge, Cambridge, UK
Related authors
Roberto Fernández, Gary Parker, and Colin P. Stark
Earth Surf. Dynam., 7, 949–968, https://doi.org/10.5194/esurf-7-949-2019, https://doi.org/10.5194/esurf-7-949-2019, 2019
Short summary
Short summary
This paper describes the case of a meandering bedrock river with loose sediment on the bed. In such rivers, the sediment hits and erodes the bed as it moves with the flow. We did experiments in a laboratory flume to identify the areas where the sediment moves and those where it deposits. We discovered that the size and location of those areas change with the amount of sediment in the channel and its curvature. The fluctuations of sediment cover over the bed drive the erosion potential.
Maxwell T. Cunningham, Colin P. Stark, Michael R. Kaplan, and Joerg M. Schaefer
Earth Surf. Dynam., 7, 147–169, https://doi.org/10.5194/esurf-7-147-2019, https://doi.org/10.5194/esurf-7-147-2019, 2019
Short summary
Short summary
Glacial erosion is known to limit the height of midlatitude mountain ranges affected by substantial glaciation during cold periods. Our study examines this phenomenon in the tropics. A new form of hypsometric analysis, along with other evidence, of 10 tropical ranges reveals widespread signs of a perched glacial base level at the ELA. Although glacial influence is moderate to weak in these environments, the evidence suggests that glacial erosion acts to limit the height of tropical ranges.
C. Hibert, C. P. Stark, and G. Ekström
Nat. Hazards Earth Syst. Sci., 15, 1265–1273, https://doi.org/10.5194/nhess-15-1265-2015, https://doi.org/10.5194/nhess-15-1265-2015, 2015
Short summary
Short summary
We carry out a study of the seismic signals generated by the devastating Oso-Steelhead landslides. We invert the long-period seismic signals generated by the first main event and obtain estimates of its trajectory, kinematics and mass. No distinct long-period surface waves were recorded for the second failure, which prevents inversion for its source parameters. However, from the comparison of the energy of the short-period waves generated by both events, we can estimate the volume of the second.
L. Zhang, G. Parker, C. P. Stark, T. Inoue, E. Viparelli, X. Fu, and N. Izumi
Earth Surf. Dynam., 3, 113–138, https://doi.org/10.5194/esurf-3-113-2015, https://doi.org/10.5194/esurf-3-113-2015, 2015
Short summary
Short summary
The saltation-abrasion model captures bedrock incision due stones striking bedrock. We present the Macro-Roughness-based Saltation-Abrasion-Alluviation (MRSAA) model, which tracks spatiotemporal variation of both bedload and alluvial thickness. It captures migrating waves of incision upstream and alluviation downstream. We apply it to incision problems not captured by saltation-abrasion, including the response to alluviation and stripping, and a simplified graben with uplift and subsidence.
Roberto Fernández, Gary Parker, and Colin P. Stark
Earth Surf. Dynam., 7, 949–968, https://doi.org/10.5194/esurf-7-949-2019, https://doi.org/10.5194/esurf-7-949-2019, 2019
Short summary
Short summary
This paper describes the case of a meandering bedrock river with loose sediment on the bed. In such rivers, the sediment hits and erodes the bed as it moves with the flow. We did experiments in a laboratory flume to identify the areas where the sediment moves and those where it deposits. We discovered that the size and location of those areas change with the amount of sediment in the channel and its curvature. The fluctuations of sediment cover over the bed drive the erosion potential.
Maxwell T. Cunningham, Colin P. Stark, Michael R. Kaplan, and Joerg M. Schaefer
Earth Surf. Dynam., 7, 147–169, https://doi.org/10.5194/esurf-7-147-2019, https://doi.org/10.5194/esurf-7-147-2019, 2019
Short summary
Short summary
Glacial erosion is known to limit the height of midlatitude mountain ranges affected by substantial glaciation during cold periods. Our study examines this phenomenon in the tropics. A new form of hypsometric analysis, along with other evidence, of 10 tropical ranges reveals widespread signs of a perched glacial base level at the ELA. Although glacial influence is moderate to weak in these environments, the evidence suggests that glacial erosion acts to limit the height of tropical ranges.
C. Hibert, C. P. Stark, and G. Ekström
Nat. Hazards Earth Syst. Sci., 15, 1265–1273, https://doi.org/10.5194/nhess-15-1265-2015, https://doi.org/10.5194/nhess-15-1265-2015, 2015
Short summary
Short summary
We carry out a study of the seismic signals generated by the devastating Oso-Steelhead landslides. We invert the long-period seismic signals generated by the first main event and obtain estimates of its trajectory, kinematics and mass. No distinct long-period surface waves were recorded for the second failure, which prevents inversion for its source parameters. However, from the comparison of the energy of the short-period waves generated by both events, we can estimate the volume of the second.
L. Zhang, G. Parker, C. P. Stark, T. Inoue, E. Viparelli, X. Fu, and N. Izumi
Earth Surf. Dynam., 3, 113–138, https://doi.org/10.5194/esurf-3-113-2015, https://doi.org/10.5194/esurf-3-113-2015, 2015
Short summary
Short summary
The saltation-abrasion model captures bedrock incision due stones striking bedrock. We present the Macro-Roughness-based Saltation-Abrasion-Alluviation (MRSAA) model, which tracks spatiotemporal variation of both bedload and alluvial thickness. It captures migrating waves of incision upstream and alluviation downstream. We apply it to incision problems not captured by saltation-abrasion, including the response to alluviation and stripping, and a simplified graben with uplift and subsidence.
Related subject area
Cross-cutting themes: Complex systems in Earth surface processes: nonlinear system dynamics and chaos, self-organisation, self-organised criticality
MPeat2D – a fully coupled mechanical–ecohydrological model of peatland development in two dimensions
Impacts of grazing on vegetation dynamics in a sediment transport complex model
Data-driven components in a model of inner-shelf sorted bedforms: a new hybrid model
Adilan W. Mahdiyasa, David J. Large, Matteo Icardi, and Bagus P. Muljadi
Earth Surf. Dynam., 12, 929–952, https://doi.org/10.5194/esurf-12-929-2024, https://doi.org/10.5194/esurf-12-929-2024, 2024
Short summary
Short summary
Mathematical models provide insight to analyse peatland behaviour. However, the omission of mechanical processes by the existing models leads to uncertainties in their outputs. We proposed a peatland growth model in 2D that incorporates mechanical, ecological, and hydrological factors, together with the effect of spatial heterogeneity on the peatland system. Our model might assist in understanding the complex interactions and the impact of climate change on the peatland carbon balance.
Phillipe Gauvin-Bourdon, James King, and Liliana Perez
Earth Surf. Dynam., 9, 29–45, https://doi.org/10.5194/esurf-9-29-2021, https://doi.org/10.5194/esurf-9-29-2021, 2021
Short summary
Short summary
Arid ecosystem health is a complex interaction between vegetation and climate. Coupled with impacts from grazing, it can result in quick changes in vegetation cover. We present a wind erosion and vegetation health model with active grazers over 100-year tests to find the limits of arid environments for different levels of vegetation, rainfall, wind speed, and grazing. The model shows the resilience of grass landscapes to grazing and its role as an improved tool for managing arid landscapes.
E. B. Goldstein, G. Coco, A. B. Murray, and M. O. Green
Earth Surf. Dynam., 2, 67–82, https://doi.org/10.5194/esurf-2-67-2014, https://doi.org/10.5194/esurf-2-67-2014, 2014
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Short summary
Landscape erosion is generally considered to take place vertically downward. Here, by writing gradient-driven erosion in Hamiltonian form, we show this is not true. Instead, we find it takes place in two directions simultaneously: (i) normal to the surface and (ii) along rays pointing upstream and either up or down depending on how erosion rate scales with slope. The rays follow the shortest time paths that determine how long it takes for a landscape to respond to changes in external conditions.
Landscape erosion is generally considered to take place vertically downward. Here, by writing...
