Displacement estimates were extracted from the optical flow analysis of digital elevation models to investigate a creeping landslide under dense vegetation. Displacement estimates achieved an average error below 1 m and derived surface properties provided simple and effective heuristics for landslide analysis.

Schematic diagram of rock avalanche caused by fault creep. Cracking (failure) at slope toe caused by stress concentration upon the detachment of slope toe from the hanging wall.

The contributions of check dams, terraces and vegetation to sand reduction were 22.46%, 0.40%, and 32.78%, respectively, with a synergistic contribution of nearly 50%.

A methodology employing TLS technology developed to monitor Baijiabao landslide deformation, it improves point-cloud alignment using RANSAC-based stereo fitting method. Then we extract the displacement from the aligned point cloud by the C2M method and draw the displacement nephogram to determine the landslide displacement trend.

This article presents an original, direct and robust method, based on variance images, for shoreline detection from nearshore video monitoring systems. Detecting these successive shorelines on the foreshore during a tidal cycle is a key step to capture short-term morphological variations.

Surface soil dust varied with transported dust. Dust emission from the Gobi Desert in northwest China can be transported to the Chinese Loess Plateau.

This study characterised trenches at field level and evaluated trench effectiveness in erosion control at sub-catchment level using OpenLISEM in the Mount Elgon region, Uganda. Field surveys reveal diverse trench dimensions (average length: 3 m, width: 0.7 m, depth: 0.5 m), mainly on contour lines in about 62% of the agricultural area. Simulations indicate wide-scale trench adoption would reduce runoff by 40.45% and soil loss by 33.81% compared to current conditions. Widespread trench use is recommended for sustainable land management.

Located on the high-energy coast of SW Iceland, the boulder barrier of Valahnúkamöl experienced important morphological changes associated with the morphogenetic impact of storm events over annual to pluri-decadal timescales.

Late Quaternary drill core samples from the western Mu Us dune field show ²³⁴U/²³⁸U activity ratios and Nd isotopic values matching northeastern Tibetan Plateau-derived Yellow River sediments, supporting their role as a sediment source, while modern samples may be skewed by human activity.

• Both time-variant flow structures and particle interactions impact particle trajectories
• Coarser particles and higher transport rates into the tributary penetrate more into the main channel
• Mainstream sediment moves underneath tributary sediment, explaining vertical sorting in tributary mouth bars
• Spatial density of particles decreases where bed shear is strongest, leading to scour hole formation

• Left: view of the confluence of the Rhône and Avançon rivers

  ; right: flow structures and particle paths at the junction in Case 2.

A simulated annealing mechanism was integrated into the M&V algorithm, thereby increasing the accuracy of the calculated IC values at the microtopographic scale. The IC value calculated via the M&V-SAA algorithm was significantly positively correlated with the sediment yield, whereas the IC values calculated via the other algorithms were not significantly correlated with the sediment yield.

In September 2022, a high-magnitude flood in the Misa River (Italy) transported gravel in suspension, depositing it on superelevated terraces. This was driven by high water discharge, increased fluid density and an entrenched channel limiting widening. Our findings highlight how extreme floods can suspend gravel, refining flood hazard models and improving sediment transport predictions in gravel-bed rivers.

Four methods were used to quantify short-term (1–2 years) reach-wide streambank erosion rates along three low-order streams in western Virginia: (1) bank height and cross-section (XS) surveys, (2) bank height and top of bank (TOB) surveys, (3) bank height survey and aerial imagery analysis and (4) DEM of Difference (DoD) using UAS LiDAR with channel Geomorphic Change Detection (GCD) software. Results show physical surveys are best for quantifying short-term erosion rates for small, low-order streams in this region.

Lakes in isolated carbonate platforms form through sedimentation, dissolution and diagenetic processes. The degree to which lakes exhibit ocean/aquifer connectivity is a function of the age of the surrounding and underlying bedrock, and style of diagenesis most impacting the lakebed through time.

The hydro-geomorphic effects of 16 in-stream wooden leaky barriers (LBs) were monitored over three years. The effects on velocities, inundation extent and celerity were limited. Localised backwater deposition initiated by LBs reduced velocities and increased inundation. A reach-wide net deposition response of 3.49 ± 0.36 m³ was observed.

Single, moderate-scale perturbations in outer-bar elevation are shown to generate rip channels across an inner bar. The coupling between the inner- and outer-bar channel positions depends on the outer-bar perturbation depth and transverse slope. The inner-bar rip may de-coupled or re-coupled from the outer bar as channels evolve.

Melville and Black Mountains, northeast Australia, are 300 to 500 m high and entirely covered by granitoid boulders and blocks, which derived from rock columns made during the granitoid emplacement. Subsurface weathering in Jurassic, subsequent uplift and exhumation of the corestones and farther erosion made these mountains.

Quaternary caves are young forms subjected to constant evolution. They are developed in Quaternary unlithified glacial tills, associated with the presence of glacitectonic disturbances. Caves are situated in the northern part of the Polish Lowlands, located on steep slopes of river valleys and a seashore cliff.

The Landes Triangle is dotted with 2,400 + shallow depressions of unknown origin, that fall into two distinct groups in terms of morphology, distribution and geology. In the central and western parts of the region, the depressions are likely of aeolian origin, while a crypto-karst origin is favoured elsewhere.

The findings indicated that the loess slope's failure under heavy rainfall is characterized by progressive shallow flow-slip instability, and the NPR anchor cable force shows obvious seasonal dynamic evolution characteristics.

1. This study evaluates the stability of drainage divides in the Heihe River Basin using the χ-plot and Gilbert metric methods, revealing an ongoing dynamic evolution characterized by both expansion and contraction.
2. The findings highlight that regional tectonic evolution is the primary driver of drainage reorganization, with climate, lithology and local fault activity playing minor roles.
3. The Heihe River's progressive transformation into a fully transverse system exemplifies the competitive dynamics between transverse and longitudinal rivers.

Recent landslides affecting salmon migration in the Fraser River corridor are similar to many others that occurred during the Holocene. We propose an ‘ecohazard’ framework for determining the risk to salmon migration associated with different landslide styles throughout the Fraser River catchment.

We use ¹⁰Be concentrations in paraglacial terrace fills and modern fluvial sediments to demonstrate the extent to which legacies of past glaciation still dominate landscape denudation in the Fraser River basin, Canada. Despite widespread paraglacial terrace fills, we find surprisingly limited contributions of paraglacial sediment to modern fluvial sediment loads.

This study integrates multi-source remote sensing to reveal the post-2018 kinematics of the Baige landslide, identifying significant displacements in the residual unstable and head scarp areas. Seasonal displacement patterns are correlated with rainfall, and a hydraulic diffusivity of 4.95 × 10⁻⁵ m²/s and an unstable mass thickness of ~65 m highlight ongoing instability risks.

• Water stable aggregate content decreased with increasing of land degradation
• Erosion is positively and linearly related with stable aggregate fractal dimension
• Erosion rates are negatively related with aggregates stability
• Aggregate fractal dimension can serve as parameter for monitoring soil degradation

This study develops a remote sensing methodology that integrates high-resolution satellite imagery with field validation to map the Wahiba Dune Field of Oman. Findings reveal the sensitivity of contemporary geomorphic surfaces to local sediment dynamics and highlight the value of multi-scale analysis in interpreting dune field evolution.