Localised geomorphic response to channel-spanning leaky wooden dams

Abstract. The introduction of leaky wooden dams (or engineered log jams or LDs) into river corridors in low-order steams in upper catchments has recently become a popular form of natural flood managem...

doi.org

Detection of landslide timing, reactivation and precursory motion during the 2018, Lombok, Indonesia earthquake sequence with Sentinel-1

Abstract. Earthquake-triggered landslides can be mapped using optical satellite images, but assessing how they evolve during earthquake sequences is difficult due to cloud cover in these data. This in...

esurf.copernicus.org

Climatic and Tectonic Forcing Lead to Contrasting Headwater Slope Evolutions

Abstract. Landscapes evolve through the coupled effects of tectonics and surface processes. Previous studies have shown that uplift rate changes generate upstream-migrating erosion waves, altering dow...

egusphere.copernicus.org

Hydrodynamic and morphodynamic patterns on a mid-channel intertidal bar in an estuary

Abstract. Many estuaries have mid-channel bars that emerge during low tide. In contrast to fringing tidal flats, these bars are fully surrounded by channels. This may lead to different hydrodynamics a...

egusphere.copernicus.org

Decadal in situ hydrological observations and empirical modeling of pressure head in a high-alpine, fractured calcareous rock slope

Abstract. In peri- and paraglacial regions, water plays a critical role in the hydrological cycle and slope stability. However, hydrological models often overlook water infiltration into bedrock due t...

esurf.copernicus.org

An evaluation of flow-routing algorithms for calculating contributing area on regular grids

Abstract. Calculating contributing area (often used as a proxy for surface water discharge) within a digital elevation model (DEM) or landscape evolution model (LEM) is a fundamental operation in geom...

esurf.copernicus.org

Hillslope diffusion and channel steepness in landscape evolution models

Abstract. The streampower (SP) fluvial erosion model is the basis for many landscape evolution simulations and analyses. It assumes that river incision into bedrock depends only on flow intensity and ...

esurf.copernicus.org

Hillslope diffusion and channel steepness in landscape evolution models

Abstract. The streampower (SP) fluvial erosion model is the basis for many landscape evolution simulations and analyses. It assumes that river incision into bedrock depends only on flow intensity and ...

esurf.copernicus.org

Curvature-based pebble segmentation for reconstructed surface meshes

Abstract. Accurate segmentation of pebbles in complex 3D scenes is essential to understand sediment transport and river dynamics. In this study, we present a curvature-based instance segmentation appr...

egusphere.copernicus.org

Haloturbation in the northern Atacama Desert revealed by a hidden subsurface network of calcium sulfate wedges

Abstract. While the formation of periglacial wedges and polygonal patterned grounds has been extensively studied and many of the processes involved have been understood, knowledge on the formation of ...

esurf.copernicus.org

Improving a multi-grain size total sediment load model through a new standardized reference shear stress for incipient motion and an adjusted saltation height description

Abstract. Modelling sediment transport is important to understand how fluvial systems respond to climatic change or other transient conditions such as catastrophic sediment release. In natural rivers,...

egusphere.copernicus.org

Three-stage evolution of particle shape in headwater streams

Abstract. Given the importance of sediments in fluvial morphodynamics, studying how sediment particle shapes change during mass loss is important for understanding the morphology and change rates of f...

egusphere.copernicus.org

Progressive destabilization of a freestanding rock pillar in permafrost on the Matterhorn (Swiss Alps): Field observations, laboratory experiments and mechanical modeling

Abstract. Permafrost rock slopes have been extensively studied, yet the thermal and mechanical dynamics of the transition zone between the permafrost and overlying seasonally frozen layers warrant fur...

egusphere.copernicus.org

An evaluation of flow-routing algorithms for calculating contributing area on regular grids

Abstract. Calculating contributing area (often used as a proxy for surface water discharge) within a digital elevation model (DEM) or landscape evolution model (LEM) is a fundamental operation in geom...

esurf.copernicus.org

Integrating smartrock and seismic monitoring to investigate bedload transport dynamics during rapid increase of stages in ephemeral streams

Abstract. Bedload transport dynamics during rapid increases of stage remain poorly constrained, particularly in ephemeral streams where such conditions are common. We combined two cutting-edge monitor...

egusphere.copernicus.org

Formational Conditions of Ribbed Moraine in Norway: A Distribution Analysis and Ribbed Moraine Inventory

Abstract. Ribbed moraines are common landforms in regions formerly glaciated by the Fennoscandian, British and Laurentide ice sheets. Their process of formation is disputed, as formation conditions ar...

egusphere.copernicus.org

Geometric constraints on tributary fluvial network junction angles

Abstract. The intersection of two non-parallel planes is a line. Howard (1990), following Horton (1932), proposed that the orientation and slope of a fluvial valley bottom within a tributary network a...

esurf.copernicus.org

Effect of grain-sorting waves on alternate bar dynamics: Implications of the breakdown of the hydrograph boundary layer

Abstract. Understanding the morphological responses of gravel-bed rivers to changes in external forces (e.g. water and sediment supply conditions) is a critical concern in river science and engineerin...

egusphere.copernicus.org

Automatic detection of floating instream large wood in videos using deep learning

Abstract. Instream large wood (i.e. downed trees, branches, and roots larger than 1m in length and 10 cm in diameter) performs essential geomorphological and ecological functions that support the heal...

esurf.copernicus.org

Investigating uncertainty and parameter sensitivity in bedform analysis by using a Monte Carlo approach

Abstract. Precise and reliable information about bedforms regarding geometry and dynamics is relevant for many applications – such as ensuring safe conditions for navigation along the waterways, param...

esurf.copernicus.org

Geomorphic imprint of high-mountain floods: insights from the 2022 hydrological extreme across the upper Indus River catchment in the northwestern Himalayas

Abstract. The interaction of tectonics, surface processes, and climate extremes impacts how the landscape responds to extreme hydrological events. In 2022, an anomalous precipitation event occurred du...

esurf.copernicus.org

Short communication: Learning How Landscapes Evolve with Neural Operators

Abstract. The use of Fourier Neural Operators (FNOs) to learn how landscapes evolve is introduced. The approach makes use of recent developments in deep learning to learn the processes involved in evo...

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Morphological response to climate-induced flood event variability in a sub-arctic river

Abstract. This study examined the effects of climate-induced flood event variability and peak sequencing on the morphological response of a sub-arctic river. We classified 32 years of discharge hydrog...

egusphere.copernicus.org

Examination of analytical shear stress predictions for coastal dune evolution

Abstract. Existing process-based models for simulating coastal foredune evolution largely use the same analytical approach for estimating wind-induced surface shear stress distributions over spatially...

esurf.copernicus.org