📄 Category

earth_science

1415 papers

📄 earth_science

Estimation of Site Effects and Seismic Attenuation (Q) Using Generalized Inversion in Southwestern Saudi Arabia: Implications for Seismic Risk Assessment

This study utilizes generalized inversion of earthquake recordings from 16 seismic stations in southwestern Saudi Arabia to estimate frequency-dependent seismic attenuation and site amplification characteristics, providing critical data for improved seismic risk assessment and the design of earthquake-resistant infrastructure in the region.

Saleh Qaysi2026-08-06
📄 earth_science

Multi-Seasonal Hydrogeochemical Evolution, Chemometric Source Apportionment, and Demographic Health Risk Profiles Across an Urban-Industrial Corridor, Upper Gangetic Plain, India

This study integrates hydrogeochemical analysis, chemometric source apportionment, and health risk assessment across an urban-industrial corridor in India's Upper Gangetic Plain to reveal that intensive agricultural and industrial activities have shifted groundwater evolution toward salinization, creating severe non-carcinogenic health risks for children via drinking water while highlighting the need for targeted nutrient remediation and stricter groundwater security policies.

Ankita Trivedi, Uday Pratap Shahi2026-08-06
📄 earth_science

Multidimensional characteristics and ecological risks of MPs in receiving waters from WWTP effluent

This study reveals that sewage treatment plant effluent acts as a persistent source of microplastic pollution in the Fuyang River, creating seasonal hotspots dominated by domestic fibers and PE/PP polymers while driving severe local ecological risks due to highly toxic PVC components, thereby necessitating urgent source control strategies for industrial polymers.

Xiu Xu, Wei Wang, Xin Meng, Jie Qi, Sheng Zhang2026-08-06
📄 earth_science

Adjacent stand canopy cover and tree species composition control soil and vegetation recovery on skid trails after 20 years in the Hyrcanian forests

Twenty years after logging in Hyrcanian forests, adjacent stand canopy cover and tree species composition were found to be the primary drivers of soil and vegetation recovery on skid trails, with dense canopies and alder-mixed stands significantly accelerating physical and chemical restoration compared to open or pure-beech stands, though full recovery was not achieved without active intervention.

Farzam Tavankar, Ramin Naghdi, Mehrdad Nikooy, Ali Dalir, Rodolfo Picchio2026-08-06
📄 earth_science

Sediment dispersal of PE and PVC primary microplastics in a coastal archipelago surrounding a plastic production industrial complex

This study reveals that primary microplastics, particularly polyethylene and polyvinyl chloride, from a nearby petrochemical complex are the dominant source of sediment contamination in a Swedish coastal archipelago, with their spatial distribution shaped by particle density and local hydrodynamic conditions.

Karin Mattsson, Elisabet Ekstrand, Jeongyeon Yun, Titouan Palluy, Thisal Mandula Sugathapala, Kerstin Magnusson, Kjell N (…)2026-08-06
📄 earth_science

Remote Sensing-Based Assessment of Hydro-Climatic Variability and Spatial Drought–Extreme Rainfall Conditions in the Transboundary Tano River Basin, West Africa

This study utilizes remote sensing data and Google Earth Engine to analyze hydro-climatic variability in the Tano River Basin from 2000 to 2024, revealing significant vegetation greening despite non-significant rainfall trends and establishing a robust framework for distinguishing spatial drought and extreme rainfall conditions to support adaptation planning.

George Owusu Amoahᵃ, Rachel Olawoyinᵃ, Francis Quaysonᵇ2026-08-06
📄 earth_science

Ecological drivers of movements and habitats of a deep diver: the elusive sperm whale

By integrating satellite telemetry with three-dimensional oceanographic variables, this study reveals that sperm whales in the Azores exhibit strong site fidelity and foraging behavior driven by dynamic environmental factors, identifying the region as a critical, seasonally variable foraging hotspot requiring protection from anthropogenic threats.

Mareike D. Duffing Romero, Sergi Pérez-Jorge, Elliott L. Hazen, Manuela Juliano, Rui Prieto, Claudia Oliveira, Mónica A. (…)2026-08-06
📄 earth_science

Optimizing acidified methanol extraction for archaeological lipid residue analysis: Effects of key experimental parameters on recovery efficiency

This study optimizes acidified methanol extraction for archaeological lipid residue analysis by identifying that a 5% sulfuric acid concentration, a 1:5 solid-liquid ratio, and two extraction cycles maximize recovery efficiency, thereby establishing a robust and standardized protocol for analyzing real pottery samples.

Yuxiao Cheng, Wei Ge, Xihuang Lin, Cifu Lin, Ruibo Ren, Xijie Yin2026-08-06
📄 earth_science

Linking groundwater recharge processes and nitrogen dynamics on a small Mediterranean island: A conceptual framework from Kythera Island (Greece)

This study integrates hydrochemical and isotopic analyses to develop a conceptual framework for Kythera Island, revealing that groundwater recharge is primarily driven by mountainous carbonate formations while nitrogen dynamics are dominated by soil organic nitrification with limited denitrification, offering insights for managing water resources in similar semi-arid Mediterranean islands.

Ioannis Matiatos, Elias Dimitriou, Anastasios Papadopoulos, Ioanna Zotou, Sergios Lagogiannis, Vassiliki Markogianni, So (…)2026-08-06