This manuscript presents an innovative coupled modelling framework for assessing erosion dynamics in a large Himalayan basin. We have integrated the RUSLE-based soil erosion modelling with sediment connectivity and stream power index to compute soil erosion and transport index (SETI) under modern and future climate scenarios.

This study investigates Lake Sulzenau in Tyrol, Austria, focusing on the glacial lake outburst flood (GLOF) that occurred in 2017. By employing multi-source remote sensing data and geomorphological analysis, the research reveals that the GLOF was likely triggered by a dam failure resulting from increased meltwater and precipitation, alongside ongoing glacier retreat, highlighting the intricate environmental changes and hazards in Alpine regions under the influence of global warming.

A historical flood generated 32 splays covering 1,438 ha along a 122 km reach of the braided lower Platte River. 94% of the splays were bank-top splays deposited on abandoned braid channels presently cultivated for row crops. Splays pose an increasing hazard as rain-on-snow floods are becoming more common in the central USA.

Difference of the flood propagation after the topographic changes shows the anthropic amplification of the exposure and hazards.

The sedimentology and stratigraphy of postglacial debris flow beds found in a densely populated area are described and shows mass-wasting activity throughout the Holocene, also within the last 1000 years. This is important knowledge to aid in the interpretation of the Quaternary history of the area and to determine hazard zones.

Under the scenario that future greenhouse gas emissions will continue to increase, the projection of precipitation in Japan until 2,100 suggests that intense rainfall with landslide-triggering potential might increase and occur synchronously in two to five regions owing to more frequent and widespread occurrence of precipitation.

Obvious ground subsidence along the Bei'an-Hei'he Highway (BHH) in Northeast China was detected using ALOS-2 and Sentinel-1 data, revealing subsidence in areas with significant permafrost temperature variations, with deformation correlated to precipitation, temperature, elevation, slope angles and aspects.

During the November 2021 atmospheric river in British Columbia, Canada, hundreds of landslides were triggered. We found that geohazards occurred more frequently in wildfire burned areas and along forest harvesting resource roads, providing point sources of sediment that entered mainstem rivers and caused river channels to shift.

We developed a predictive modelling framework to estimate bed erodibility based on antecedent saturation of the channel bed. The modelled saturation conditions and the RAMMS-calibrated bed erodibility exhibit a strong correlation when debris flows adhere to typical flow patterns, making the proposed framework a promising tool for hazard assessments under climate change.

River erosion during extreme floods poses a threat to communities and infrastructure but can be difficult to model. This work shows that erosion during an extreme flood is related to the unit stream power and at the simplest level tends to increase with river gradient and confinement.

This paper investigates the triggering and propagation conditions of a recent rock avalanche (c. 225,000 m³, French Alps, 2020) at a permafrost site. Several methods including temperature monitoring, geophysical survey, energy balance and heat transfer modelling show a permafrost warming with a transition from cold to warm permafrost in the release area and significant water infiltration weeks and days prior to the event. Runout simulations point out the complexity of the propagation mechanism, involving several phases and different rheological properties.

Repeat field surveys and lidar differencing reveal space- and time-varying channel changes following several large post-fire debris flows in a steep mountain stream in the western United States. Factors influencing local channel response included channel and valley width, unit stream power, large woody debris and snowmelt discharge.

• Two extreme wave event deposits of boulders have been located on a coastal platform formed by lavas from the 1730-36 Timanfaya eruption in Lanzarote Island.
• The modelling of wave heights and tsunami heights required to mobilise these blocks shows that a tsunami was necessary to accumulate the boulders into ridges.
• This work confirms for the first time the geological record of the 1755 Lisbon tsunami on the Canary Islands, allowing a distinction between tsunami-associated deposits and those formed by large storms.

This study focuses on quantifying changes in the properties of a post-fire debris flow in Northern Arizona, USA, along a 7-km runout path. The flow transitioned from granular to muddy debris flow, leading to differences in deposit morphology and maximum clast size. The flow volume was 28 times greater than that of a debris flow in the same watershed following a severe wildfire 12 years prior, highlighting the importance of considering compound effects from successive high-severity fires.

This study found that both location and geometric properties are specific to landslide type and differ between rainstorm- and earthquake-induced landslides. Compared with rainstorm-induced landslides, earthquake-induced landslides are more common near the ridge of a slope and have a larger, more compact, rounded and less complex shape.

In the process of freezing and thawing, water migration occurs in the loess slope, resulting in the frozen stagnant water effect, which makes the water enriched in the slope. This makes the mechanical strength parameters of loess deteriorate. The effect of frost heave and thaw settlement destroys the soil structure and makes the soil particles rearrange. This threatens the stability of loess slope.

The Antamok River (Philippines) was affected by more than 500 landslides during Typhoon Mangkhut in September 2018. Landslide mapping using satellite imagery and remote sensing, together with multi-phase computational modelling, highlighted key areas of erosion and deposition in the catchment, which could not be represented by traditional approaches such as unit stream power threshold.

Considering the catastrophic 1618 landslide as a morphological turning point, the understanding of the progressive evolution of the palimpsest landscape of Piuro made it possible to draw two DTMs depicting the pre- and post-1618 morphology of the valley bottom, useful for archaeological reconstructions and quantitative analyses.

A workflow for automated detection and monitoring of slow-moving landslides using openly available satellite imagery.

Permafrost, due to its high sensitivity to climate change and human activities, plays a crucial role in understanding the environmental sustainability of Arctic cities. However, widespread global climate warming has caused irreversible damage to the urban surface situated on permafrost. Despite this, there still remains a significant amount of uncertainty in research pertaining to this issue. Therefore, this study is designed to investigate the surface deformation of Yakutsk, the largest city situated on permafrost, using times series remote sensing techniques.