📄 earth science

Assessing Hourly and Daily Reference Evapotranspiration from NASA POWER Data: Implications for Irrigation Water Requirement

This study demonstrates that calculating reference evapotranspiration (ET₀) using daily mean meteorological data from NASA POWER systematically overestimates irrigation water requirements compared to hourly-aggregated data, particularly during high-energy summer periods, due to the non-linear nature of the FAO-56 Penman-Monteith equation smoothing peak evaporative demands.

Pankaj Agrawal, Pratik Gite2026-08-03
📄 earth science

Beyond Shock Exposure: Food Insecurity, Erosive Coping and Protection Gaps in Somalia: Evidence from SIHBS 2022

Using 2022 nationally representative data, this study reveals that while climate-livelihood shocks are widespread in Somalia, they disproportionately drive food insecurity and erosive coping among nomadic and livestock-owning households who largely lack formal support, highlighting the urgent need for integrated targeting strategies that move beyond simple shock counts to address protection gaps.

Ahmed Hussein Ismail2026-08-03
📄 earth science

Spatial and seasonal patterns of potentially toxic elements in the Mantaro River Basin, Peru (2012-2022): hydrochemical associations and irrigation-water quality

By analyzing a decade of official monitoring data from Peru's Mantaro River Basin, this study reveals that basin-wide averages mask significant seasonal and spatial variations in potentially toxic elements, identifying specific hydrochemical drivers and classifying over half of the irrigation stations as having poor water quality.

Alberto Franco Cerna-Cueva, Doive Salvador Ortega-Silva, Nicolas Walter Aguilar-Carazas, Jhony Godofredo Marín-Vásquez (…)2026-08-03
📄 earth science

Predictive modeling of Sungrass (Imperata cylindrica) invasion under changing climate scenarios in Raghunandan Hills Reserved Forest of Bangladesh

This study utilizes the MaxEnt model to predict that Sungrass (*Imperata cylindrica*) invasion in Bangladesh's Raghunandan Hills Reserved Forest will expand under future climate scenarios (2050–2090), driven primarily by soil nutrients and elevation, thereby highlighting the urgent need for targeted management strategies.

Mohammad Redowan, Md. Mokshedur Rahman, Akbar Hossain Kanan2026-08-03
📄 earth science

Groundwater quality evaluation of Greek aquifers: A Data Driven Approach

This study evaluates groundwater quality across Greek aquifers using a data-driven analysis of 2018–2020 monitoring data to identify dominant hydrochemical processes, such as salinization and carbonate dissolution, and to reveal significant hydrochemical differentiation among porous, karst, and fractured aquifer types driven by lithology and anthropogenic inputs.

Georgaki Maria Nefeli, Georgakis Athanasios, Ntona Maria Margarita, Sarigiannis Dimosthenis, Georgakis Charalampos, Kaza (…)2026-08-03
📄 earth science

Pollution Characteristics and Health Risks of Heavy Metals in Groundwater of a Chemical Industrial Park

This study evaluates the severe heavy metal pollution and associated health risks in the groundwater of a southern Chinese chemical industrial park, revealing that industrial activities drive widespread contamination with Mn and Co posing significant non-carcinogenic risks while Al contributes to carcinogenic concerns, thereby providing a scientific basis for targeted remediation.

Zhi Li, Xun Li, zhongkui Zhou, xiaodong Chu, yang Yang, yi Zhao, Jiye Zhang, Huanyin Pei2026-08-03
📄 earth science

Added value of hourly climate-model ensembles for process-based local-scale water-balance projections

This study demonstrates that using native hourly resolution from convection-permitting climate ensembles, rather than aggregated daily data, significantly alters long-term local water-balance partitioning and drought-stress diagnostics by capturing process-relevant intra-day dynamics, particularly increasing interception evaporation and reducing runoff at forested sites.

Ivan Vorobevskii, Astrid Ziemann, Thi Thanh Luong, Kevin Sieck, Rico Kronenberg2026-08-03