TerraMosaic Daily Digest: Mar 25, 2026
Daily Summary
This March 25, 2026 digest distills 39 selected papers from 882 analyzed records. The central scientific shift is from trigger-based description to state-based interpretation. The strongest landslide papers follow how unstable terrain stores, redistributes, and reactivates material across years to millennia, from postglacial lake slopes and moraine dams to earthquake-conditioned mountain catchments and spoil-disposal corridors.
The day's methods papers reinforce the same point. Monitoring is most useful when it resolves hidden system state: debris-flow surge structure from seismic arrays, deformation strategy from InSAR benchmarking, volcanic unrest from long SAR archives, avalanche exposure from mobility traces, and levee or pile vulnerability from coupled hydromechanical diagnosis. This is a literature increasingly organized around process memory, hydraulic connectivity, and operational interpretability.
Key Trends
The strongest papers explain how hazardous systems become unstable through storage, connectivity, and repeated forcing rather than through a single trigger alone.
- Cascade thinking is replacing event thinking: Wenchuan-derived sediment stores, moraine-dam ice, subaqueous retrogression, and spoil-slope impulse waves are all analyzed as linked stages of one evolving hazard system.
- State-aware monitoring is becoming the dominant technical path: The most convincing sensing papers recover hidden process variables rather than just sharper images or denser archives.
- Seismic slope mechanics are being resolved with greater precision: New shaking-table and field studies separate where amplification concentrates and how buckling, cracking, and shear organize failure in bedding rock slopes.
- Operational warning is moving closer to consequence: Flood and coastal papers increasingly translate forecasts into crop loss, impact classes, and other decision-facing products.
- Infrastructure geohazards are treated as coupled systems: Levees, anti-slide piles, liquefiable slopes, reservoirs, and injection wells are assessed through interacting deformation, seepage, and uncertainty rather than single-parameter checks.
Selected Papers
This digest features 39 selected papers from 882 papers analyzed.
1. Holocene subaqueous landslide dynamics in the Lake Siljan‐Orsasjön Basin, south‐central Sweden
Core Problem: The long-term timing, triggers, and reactivation pathways of subaqueous landslides in large postglacial lake basins remain poorly constrained.
Key Innovation: By combining multibeam bathymetry, sub-bottom profiling, sediment coring, and radiocarbon dating, the study reconstructs repeated Holocene failures, retrogressive widening, and possible seismic triggering in the Siljan-Orsasjön Basin.
2. New insights on the 2020 Jinwuco glacial lake outburst flood: considering ice content within the moraine dam
Core Problem: Hazard appraisal for moraine-dammed glacial lakes is weakened when buried ice within the dam body is not represented explicitly.
Key Innovation: The paper revisits the 2020 Jinwuco outburst by incorporating dam ice content into the interpretation of breach behavior, yielding a more realistic basis for GLOF-process reconstruction and future hazard assessment.
3. Extreme scenario-based risk assessment of landslide-induced impulse wave from spoil disposal slope instability in hydropower projects
Core Problem: High-mountain hydropower projects still lack integrated assessment frameworks that link spoil-slope instability directly to downstream impulse-wave consequences.
Key Innovation: This study couples slope-stability simulation with computational fluid dynamics to trace the chain from extreme rainfall and seismic loading to wave propagation and downstream infrastructure risk.
4. Investigating dynamic response and failure mechanisms of anti-dip bedding rock slopes: an integrated experimental and finite-discrete element method
Core Problem: The seismic amplification pattern and failure-surface development of anti-dip bedding rock slopes remain insufficiently resolved for engineering design.
Key Innovation: Through shaking-table experiments and finite-discrete element analysis, the study identifies where amplification concentrates and shows how seismic loading shifts failure toward both slope-toe and shoulder sectors.
5. Anti-slide pile performance in a reactivated landslide: monitoring and numerical insights from Mao County, Sichuan, China
Core Problem: The long-term effectiveness of anti-slide piles in reactivated landslides is difficult to evaluate when structural defects and extreme rainfall act together.
Key Innovation: Field monitoring, pile-integrity assessment, and numerical analysis reveal how pre-existing pile damage and storm-driven pore-pressure rise accelerate deterioration, motivating a life-cycle treatment-monitoring-rehabilitation framework.
6. Formation, propagation, and annihilation of surge waves in debris flows
Core Problem: Surge-wave formation inside debris flows is still hard to observe directly over the spatial scales relevant to hazard amplification.
Key Innovation: A dense nodal seismic array along the Illgraben torrent tracks surge emergence, downstream propagation, regime transitions, and attenuation, providing rare distributed observations of debris-flow internal dynamics.
7. Degradation-buckling-shear mechanism of earthquake-induced bedding rock landslides in the Three-rivers basin: Insights from field investigation and shaking table test
Core Problem: The dynamic evolution of bedding rock landslides in earthquake-prone mountain belts is not yet described well enough to separate distinct damage stages and governing frequencies.
Key Innovation: Using field evidence, shaking-table experiments, Arias-intensity analysis, and Hilbert-Huang transforms, the paper resolves a four-stage degradation-buckling-shear failure sequence and its frequency-dependent signatures.
8. Long-term evolution of earthquake-triggered cascading landslides: insights from 15 years after the 2008 Wenchuan earthquake
Core Problem: Post-earthquake landslide systems are often studied as short-lived events, leaving their decadal adjustment and remaining sediment hazard underconstrained.
Key Innovation: A 15-year synthesis of field surveys and remote sensing quantifies activity decay, delayed channel incision, and the still-large stock of erodible material that continues to sustain cascading hazard potential after Wenchuan.
9. Spatial variability of kinematic pile response in liquefiable slopes: effects of static shear bias and partial drainage
Core Problem: Pile design in liquefiable sloping ground still relies too heavily on spatially uniform loading assumptions.
Key Innovation: Dynamic centrifuge tests and a drainage-feasibility metric show how slope angle, drainage path, and excess-pore-pressure heterogeneity create markedly different kinematic demands on upslope, midslope, and downslope piles.
10. Adaptive multilayer perceptron optimization for rockfall susceptibility mapping in Huinan County, China
Core Problem: Rockfall susceptibility mapping remains sensitive to nonlinear factor interactions and model-parameter choices that are often tuned heuristically.
Key Innovation: The study applies an optimized multilayer-perceptron workflow within a GIS framework to improve rockfall zonation in Huinan County and strengthen factor-response modeling.
11. Assessment of earthquake-induced settlements and liquefaction triggered by the 6 February 2023 Kahramanmaraş earthquakes in Gölbaşı (Adıyaman) and İskenderun (Hatay)
Core Problem: The spatial pattern and severity of liquefaction-related settlement following the 6 February 2023 Kahramanmaraş earthquakes require better site-specific documentation.
Key Innovation: This paper evaluates settlement and liquefaction manifestations in Gölbaşı and İskenderun, extending the empirical basis for post-earthquake geotechnical hazard appraisal in southern Türkiye.
12. Evaluating InSAR Strategies for Deformation Monitoring in Urban Densely Constructed Areas
Core Problem: Urban deformation monitoring with InSAR is highly scenario-dependent, yet guidance on data-source and parameter selection remains fragmented.
Key Innovation: By systematically comparing InSAR strategies in a dense construction setting, the study translates methodological variation into practical recommendations for urban geohazard monitoring workflows.
13. Tracking the slopes: a spatio-temporal prediction model for backcountry skiing activity in the Swiss Alps using user-generated content
Core Problem: Avalanche risk estimation is weakened by the lack of daily, regionally resolved information on human exposure in remote mountain terrain.
Key Innovation: The paper converts GPS tracks and online click behavior into spatio-temporal exposure models, showing that digital planning signals can anticipate real-world backcountry skiing activity.
14. Identifying ENSO events and their nexus with precipitation and flood dynamics in the Karnali River Basin, Nepal
Core Problem: Flood-generating pathways in the Karnali River Basin are still not linked tightly enough to ENSO-phase variability and basin-scale hydrological response.
Key Innovation: The study combines ENSO diagnostics with HEC-HMS and HEC-RAS modeling to relate extreme floods to atmospheric forcing, catchment properties, and river-stage evolution.
15. Remote sensing-based early warning for agricultural flood damage mitigation in recurrent flood-prone areas
Core Problem: Recurring agricultural floods are poorly served by warning systems when flood extent, severity, and likely crop losses are not mapped explicitly.
Key Innovation: This work derives flood dynamics, epicenters, and likely agricultural losses from remote sensing, turning repeated flooding patterns into a basis for targeted embankment strengthening and mitigation planning.
16. Impact‑based extreme‑wave intensity scale for high‑resolution coastal forecasting
Core Problem: Operational wave forecasts often fail to communicate likely coastal impact in a form that supports emergency action.
Key Innovation: The paper embeds a five-level impact scale and real-time coastal observations into a high-resolution forecasting system, tightening the link between model output and warning practice.
17. Advances in volcano monitoring driven by the first decade of Sentinel-1 observations
Core Problem: The methodological consequences of a decade-scale, globally consistent SAR archive for volcano monitoring have not been synthesized clearly enough.
Key Innovation: Reviewing 3.3 million Sentinel-1 interferograms, the study shows how systematic InSAR and SAR backscatter records have expanded deformation baselines, unrest detection, and rapid mapping of damaging volcanic processes.
18. A Parameter-Adaptive Photon Denoising Algorithm for ICESat-2 Glacier Monitoring in Tibet
Core Problem: ICESat-2 photon noise still limits reliable glacier-surface extraction in steep alpine terrain and low-signal conditions.
Key Innovation: A parameter-adaptive denoising algorithm improves photon classification, elevation continuity, and signal retention across Tibetan glacier settings with varied signal-to-noise regimes.
19. First subsurface characterization of periglacial areas in the Yendegaia National Park, Southern Tierra del Fuego Island, Chile
Core Problem: Remote Andean periglacial systems remain poorly constrained below the surface, limiting baseline assessment of freezing-ground hazards under climate change.
Key Innovation: The study combines geomorphological mapping, electrical resistivity tomography, and seismic refraction to identify partially frozen ground and establish a first-order subsurface reference for southern Tierra del Fuego.
20. Accumulated ecohydrological impacts and ecological risk of mega-cascade reservoir operations
Core Problem: The cumulative downstream impacts of large cascade-reservoir systems are difficult to quantify because regulation effects propagate nonlinearly across space and time.
Key Innovation: Using the Yangtze clean-energy corridor, the paper introduces a cumulative ecohydrological effect index and a dynamic ecological-risk classification framework for multi-reservoir operation phases.
21. Seepage response analysis method for levees considering soil parameter uncertainty and fluid‒solid coupling effects
Core Problem: Uncertainty-aware seepage assessment for levees remains computationally costly and numerically fragile when full fluid-solid coupling is retained.
Key Innovation: The study stabilizes the coupled analysis with a finite-difference formulation and accelerates uncertainty quantification through a variational-autoencoder and attention-free-transformer surrogate framework.
22. Wellbore-Integrity Problems Suppressing Induced Seismicity? Wastewater Disposal Using Class II Injection Wells in the Fort Worth Basin
Core Problem: Pressure-elevation patterns around wastewater-disposal wells do not map cleanly onto recorded seismicity, leaving key induced-seismicity mechanisms unresolved.
Key Innovation: By testing ten mechanical degradation modes in the casing-cement-rock system, the paper argues that wellbore-integrity failure may help explain high-pressure areas with limited observed seismicity.
23. Control of structural lineaments on the distribution of hazardous coal fire zones in Jharia Coalfield, Eastern India
Core Problem: The structural controls that localize and propagate hazardous coal-fire zones are still insufficiently mapped at field scale.
Key Innovation: DEM-derived lineaments combined with field validation show that coal-fire zones cluster near faults and fractures, clarifying likely pathways of hazard migration in the Jharia Coalfield.
24. FaiMec (Failure Mechanisms): a digital workflow for rapid seismic evaluation of local mechanisms in masonry building aggregates at a territorial scale
Core Problem: Large-area screening of out-of-plane earthquake failure mechanisms in masonry aggregates remains too slow and inconsistent for routine territorial assessment.
Key Innovation: FaiMec digitizes macro-block evaluation and capacity-demand ranking to identify governing mechanisms and classify seismic risk rapidly across dense building stocks.
25. Seismic rhythms: Earthquake response to tectonic, hydrological, and tidal forcing in California
Core Problem: The timescale and amplitude by which hydrological loading modulates earthquake occurrence remain uncertain in natural fault systems.
Key Innovation: The study shows that California seismicity can lag seasonal hydrological stressing and that rate-and-state nucleation better explains the timing than instantaneous triggering, yielding constraints on fault mechanical properties.
26. Reconstructing human‐induced geomorphic changes through historical maps and multitemporal remote sensing data in the Cancano–San Giacomo di Fraele reservoirs (Central Alps, Italy)
Core Problem: Long-term geomorphic transformation in regulated Alpine reservoir corridors is hard to reconstruct without combining archival and modern observations.
Key Innovation: Historical maps, aerial imagery, satellite data, and field mapping reveal how reservoir development redistributed sediment, reworked debris-flow fans, and intensified slope-reservoir morphodynamic feedbacks.
27. Compact Seismicity Bursts Have Different Characteristics From Regional Seismicity
Core Problem: The short-lived physical drivers of compact seismicity bursts are difficult to distinguish from the broader background behavior of regional earthquake populations.
Key Innovation: Using a systematic data-driven search across southern California, the paper isolates compact seismicity bursts and shows that their b-values, stress drops, and stress-ratio signatures differ from surrounding seismicity.
28. Primary creep encodes time to failure across laboratory and natural systems
Core Problem: The timing of rupture in slowly deforming geomaterials remains hard to anticipate from early-stage creep observations, especially in natural systems.
Key Innovation: By compiling laboratory and field creep records spanning landslides, rockfalls, and glaciers, the study shows that the duration of primary creep scales nearly linearly with time to failure.
29. Experimental study on crack evolution and fracture mechanism of coal under loading based on various nondestructive monitoring technologies
Core Problem: Microcrack growth inside loaded coal is difficult to track in a way that links internal damage evolution to macroscopic failure stages.
Key Innovation: The paper combines acoustic emission, full-field deformation measurement, CT scanning, and image analysis to resolve staged crack evolution and fracture-porosity change under loading.
30. Characterizing the subsurface structure and active faults of the Fucino Basin (Central Apennines) through integrated high-resolution seismic reflection and nodal ambient noise surveys
Core Problem: Legacy seismic profiles leave major uncertainty in the stratigraphy and active-fault geometry of the Fucino Basin, limiting seismic-hazard interpretation.
Key Innovation: New active-passive seismic surveys provide higher-resolution imaging of basin structure and the San Benedetto-Trasacco fault system associated with the 1915 Marsica earthquake.
31. Experimental study of dense sandy bluff and beach responses to combined waves and varying storm surge
Core Problem: Coastal bluff instability under jointly varying wave attack and storm-surge water levels remains insufficiently constrained by process experiments.
Key Innovation: Large-scale wave-flume tests show how notch growth, cyclic pore-pressure change, and capillary effects combine to drive progressive sliding and toppling in sandy bluffs.
32. Monotonic and cyclic shear response of calcareous sand retrieved from South China Sea
Core Problem: Dynamic safety assessment of reclamation fills remains uncertain because the cyclic shear behavior of calcareous sand is not characterized well enough.
Key Innovation: Systematic triaxial tests quantify how density, confining pressure, and cyclic stress ratio control pore-pressure buildup, deformation, and liquefaction strength in calcareous sand.
33. Fatigue-creep damage in salt rock for CAES: Multi-scale mechanisms, evolution model, and early warning
Core Problem: Long-term stability of salt caverns for compressed-air energy storage is threatened by coupled fatigue-creep damage that remains difficult to forecast.
Key Innovation: The study derives multi-scale damage evolution and dual-threshold warning models from coupled loading tests, acoustic-emission localization, and theoretical failure modeling.
34. Routine bathymetric mapping of tidal inlets using Sentinel-2
Core Problem: Highly dynamic tidal inlets are difficult to monitor routinely because survey-grade bathymetry is costly and optical retrievals are degraded by turbidity.
Key Innovation: A multi-temporal Sentinel-2 bathymetric workflow uses water-quality-aware compositing to improve repeatable depth retrieval and operational inlet monitoring.
35. A multi-sensor workflow for 3D geomorphological mapping and structural interpretation in karst cave environments
Core Problem: Karst caves are challenging to document quantitatively, which limits geomorphological interpretation and stability assessment.
Key Innovation: This workflow fuses close-range sensors, semi-automatic feature extraction, fracture analysis, and distinct-element simulations to map cave structure and evaluate stability-relevant geometry.
36. Integrating structural and social vulnerability for equitable bridge maintenance prioritisation
Core Problem: Bridge maintenance prioritization remains too narrowly structural when social vulnerability and ground-instability exposure are left out.
Key Innovation: The paper builds a multidimensional bridge-vulnerability index that integrates structural condition, subsidence susceptibility, monitoring availability, and social equity indicators.
37. Assessing land degradation neutrality at the district level: Integrating soil Erosion as a key Indicator in semi-arid central anatolia
Core Problem: Conventional land-degradation-neutrality assessments understate landscape vulnerability in semi-arid terrain when erosion is not treated as a primary indicator.
Key Innovation: By adding erosion to the standard land-cover, productivity, and soil-carbon framework, the study shows a substantially different pattern of district-scale degradation risk.
38. The regulation mechanism of rainfall kinetic energy on inter-rill erosion and organic carbon fractions loss—A field monitoring study
Core Problem: The role of rainfall kinetic energy in controlling inter-rill sediment and organic-carbon loss is still not resolved sufficiently at field scale.
Key Innovation: Field micro-plot experiments separate how changing rainfall kinetic energy modifies runoff, sediment yield, particle-size sorting, and soil-organic-carbon fraction loss.
39. Investigation of the deformed bridge piers during soil filling using interface graph neural network
Core Problem: Bridge-pier deformation during staged soil filling is expensive to simulate repeatedly with full finite-element workflows.
Key Innovation: An interface graph neural network reproduces soil-structure interaction and field-monitored pier deformation with far lower computational cost, enabling rapid deformation diagnosis during filling.