📄 earth science

Spatial interpolation alters heat-wave detection despite small temperature errors in data-sparse regions

This study demonstrates that while spatial interpolation methods like Inverse Distance Weighting may achieve acceptable predictive accuracy in data-sparse regions, they systematically reduce temperature variability and significantly alter the detection and duration of heat-wave events, suggesting that conventional error metrics are insufficient for evaluating their suitability in climate-risk assessments.

Fabiano Fernandes Bargos, Maurício Lamano Ferreira, Danúbia Caporusso Bargos2026-08-19
📄 earth science

Seismic response and postseismic stability of an investigation-constrained loess–mudstone slope

This study utilizes a 3D model derived from comprehensive geological investigations to demonstrate that a dry loess–mudstone slope in Tianshui exhibits non-monotonic seismic amplification and localized postseismic deformation driven by 3D wave focusing and strain softening, rather than failure along a continuous lithologic contact, thereby providing a robust basis for seismic assessment and management of similar transportation corridor slopes.

Lei Zhang, Chongliang Luo, Yufeng Bai2026-08-19
📄 earth science

Multifactorial Statistical and Toxicity Analysis of Groundwater in the Coal Region of Santa Catarina, Brazil

This study utilizes hydrochemical, multivariate statistical, and geochemical modeling approaches to characterize the impact of acid mine drainage on groundwater in Santa Catarina's coal region, revealing significant contamination by metals like iron and manganese alongside evidence of natural neutralization processes and generally low toxicological risks.

Jéssica Finardi Ramos, Tiago Vargas, Marcos Alexandre Freitas2026-08-19
📄 earth science

Volcanic similar earthquakes driven by aseismic slip associated with volcanic activity at Ogasawara Ioto

This study identifies that high-frequency volcanic earthquakes at Ioto are predominantly similar events occurring near active faults and the Motoyama dome, which are driven by repetitive aseismic slip associated with crustal deformation and characterized by small fault radii and low stress drops indicative of reduced fault strength due to shallow volcanic fluids.

Genki Oikawa, Eisuke Fujita2026-08-19
📄 earth science

A community model for integrated studies of trans-crustal magmatic system

This paper proposes a self-consistent community reference model for trans-crustal magmatic systems to serve as a benchmark for integrating teleseismic, magnetotelluric, and petrological data, demonstrating that while individual methods have limited resolution, their combined use within a unified framework is essential for fully resolving the three-dimensional architecture of these systems.

Guanning Pang, Geoffrey Abers, Samer Naif, Christy Till, Adam Kent, Kayode Agboola, Oliver Azevedo2026-08-19
📄 earth science

European climate extremes intensify unevenly across warming levels with weak contemporaneous AMOC associations

While European climate extremes intensify unevenly across 1.5°C to 3.0°C global warming levels, this study finds that detrended interannual variability in the Atlantic Meridional Overturning Circulation (AMOC) shows no robust contemporaneous association with these extremes within comparable warming states.

Emmanuel Eresanya, Kazeem Ishola, MojoOluwa Daramola, Brian Ayugi, Hyacinth Nnamchi, Samantha Hallam2026-08-19
📄 earth science

Dating ductile deformation of the Earth’s crust: the critical role of fluids

By combining high-resolution microchemical mapping with in-situ geochronology in the Swiss Alps, this study demonstrates that fluid-driven mineral (re)equilibration, rather than strain accumulation or temperature, controls isotopic resetting during ductile deformation, thereby establishing fluid-mineral links as essential for accurately dating orogenic evolution.

Vidar Jakobsson, Richard Spikings, Martin Kutzschbach, Alfons Berger, Kalin Kouzmanov, Wolfgang Müller2026-08-19