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Earth Surface Dynamics
Scopus
ISSN 2196-6311 · Copernicus Publications · 726 artikel di indeks
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Artikel Jurnal Teks lengkap
Investigating controls on fluvial grain sizes in post-glacial landscapes using citizen science
The grain sizes of sediments in channels have been linked to landscape characteristics, such as flow distance from headwaters, topographic relief, lithology and climate, in landscapes with little past or present glacial influence. Few studies have explored the controls on sediment characteristics…
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Short Communication: The need for open-source hardware, software, and data-sharing specifications in geomorphology
Geomorphologists have more data and computational resources available than ever before. Collaboration between researchers specializing in different modes of inquiry (e.g. numerical, experimental, and field-based) often accelerates impactful scientific insights, but tools to facilitate these…
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New outdoor experimental river facility to study river dynamics
The Outdoor Experimental River Facility (OERF) is a new large-scale, semi-natural research facility designed to study river dynamics at scales that bridge small laboratory models and natural rivers. The facility comprises a 50 m long, 20 m wide floodplain corridor and is designed to sustain…
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A numerical model for duricrust formation by laterisation
Duricrusts form near the top of or within the regolith. Once exhumed, they are resistant to erosion and are often observed capping hilltops. Two hypotheses have been proposed to explain their formation. One calls upon seasonal fluctuations in water table height causing cycles of dissolution and…
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At-a-site and between-site variability of bedload transport, inferred from continuous surrogate monitoring, and comparison to predictive equations
This study investigates spatial and temporal variability of bedload transport in four Swiss mountain streams using continuous Swiss Plate Geophone (SPG) monitoring. This surrogate measuring system had been calibrated in previous studies to produce reliable estimates of bedload transport rates. The…
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Grain roughness controls on velocity and bed stress fields around a fully protruding obstacle in supercritical flow
Supercritical flows in mountain rivers create complex flow-obstacle interactions that govern infrastructure vulnerability and channel morphodynamics, yet current understanding remains focused mostly on smooth-bed assumptions that poorly represent natural gravel-bed channels, where grain-scale…
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Discrete differential geometry of fluvial landscapes
Geomorphology as a discipline is defined by the use of topographic form to understand surface processes on Earth and other planets. In practice this requires drawing connections between quantitative metrics of surface geometry and rates of erosion and deformation, to understand the spatial…
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From XRD signal to erosion rate maps
Understanding the spatio-temporal dynamics of suspended sediment source activation is essential for effective ecological management, risk assessment, and infrastructure planning. Provenance analysis, which traces sediment origins, plays a crucial role in these applications, but is often based on…
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Mud volcano dynamics in Azerbaijan: the overlooked role of creeping mud flows in landscape evolution
Azerbaijan hosts the world's highest concentration of mud volcanoes (MVs) on Earth, including some of the largest edifices that produce kilometre-scale mud breccia flows. Traditionally, such flows have been attributed to major eruptive events; however, recent study suggests that many of these flows…
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Parameter estimation of river incision models of soft sedimentary rocks – a case study on the Kamikita Coastal Plain, northeast Japan
Understanding river incision model is crucial for predicting long-term landscape evolution. For the bedrock channel incision model (detachment-limited (DL) model: erosion rate E=KAmSn where A is drainage area, S is channel gradient), parameters (K, m, and n) can be estimated via slope-area analysis…
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Seasonal and inter-annual evolution of the deformation of two Arctic landslides
Landslides in glacial and periglacial environments are increasingly affected by climate change, with sudden failures reported in high mountain regions and the Arctic. The complex mechanisms behind these events are often poorly understood due to a lack of dense in situ data. We investigate two…
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Lift or impact: modelling bedrock incision coupled with sediment dynamics
We analyze how the process of bedrock incision by the impact of sediment grains can be described and coupled with sediment dynamics. We first point out that the key parameter is a bedrock dimensionless coefficient that describes the ratio between the volumes of impacting sediments and bedrock…
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From regular to random: a unifying framework for step-pool spacing
Steep streams frequently display a distinctive step-pool structure where water crests over a near-vertical drop and plunges into a deeper depression in a repeated pattern. Because they naturally moderate the flow of water and sediment in hazardous mountain catchments, step-pools are often installed…
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Fluvio-alluvial source-sink relationships at the Skeleton Coast of northern Namibia: a parametric analysis
The hyperarid Skeleton Coast of Namibia hosts a diverse suite of alluvial landforms, often shaped by varying degrees of lateral and distal confinement primarily through fan coalescence, the Atlantic Ocean, and the Skeleton Coast Erg. Considerable heterogeneity also characterises the source areas…
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Evolution of seepage driven networks in the lab
During rain, water infiltrates the ground, where it flows as groundwater toward nearby rivers. There, its emergence can entrain sediments, triggering seepage erosion and thereby influencing the development and expansion of river networks. To investigate this process, we construct an experimental…
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Valley longitudinal profiles record the fluvial landscape evolution and geological structure of the Gamburtsev Subglacial Mountains, East Antarctica
Fluvial valley networks in mountain ranges record the interactions between climate, tectonics, and lithology. While drainage network analysis has transformed our understanding of these interactions in subaerial settings, the landscape evolution of ice-covered orogens is poorly known. The Gamburtsev…
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How ice apron loss and permafrost degradation promoted the Platteikogel rock slope failure: a thermo-mechanical reconstruction
The Alpine cryosphere changes at unprecedented speed, affecting the thermal, hydrological, and mechanical state and behaviour of rock slopes. While numerous studies investigated singular drivers for progressive rock slope failures, the knowledge of hydro-thermo-mechanically coupled processes…
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Sediment storage and routing in bedrock canyons
Bedrock river bathymetry is dynamic, with incision rates dependent on sediment cover, supply, and mobility in the channel. However, the scale and fluctuation of this dynamic sediment storage is not well understood, particularly in large bedrock rivers where the bed is not visible at low flows. We…
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ImageGrains 2.0: Improved precision and generalization for grain segmentation
Recent advances in deep-learning-based image segmentation have enabled the development of automated approaches to detect individual grains and measure them for geoscientific applications. These methods facilitate the creation of much larger and more precise datasets than traditional manual grain…
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TerraceM-3: integrating machine learning and ICESat-2 altimetry to estimate deformation rates from wave-abrasion terraces
Wave-abrasion terraces are geomorphic marker horizons that provide information of past water levels, in marine and lacustrine environments. By integrating elevation measurements and age constraints, they serve as strain markers to assess vertical deformation rates associated with tectonic and/or…