earth_science papers | Gist.Science

Monte Carlo Positive-Unlabeled Two-Step Learning for Landslide Susceptibility Mapping under Inventory Uncertainty: Comparison with Hard-Threshold PU Two-Step and EIV in Northern Morocco

This study introduces MC-PU-2S, a Monte Carlo-based Positive-Unlabeled two-step learning framework that outperforms deterministic EIV and hard-threshold PU methods in landslide susceptibility mapping for Northern Morocco by effectively propagating inventory uncertainty to generate better-calibrated predictions and essential uncertainty metrics.

El harit Abdessamad ADRI, SINAN Mohamed, FALLAHI Azzeddine2026-09-09

📄 earth science

Universal Analytical Model for Watershed Hydrological Simulation

This paper introduces the Universal Analytical Model for Watershed Hydrological Simulation (UAMWHS), an axiomatic, dual-variable differential dynamic paradigm that derives fully explicit analytical solutions from physical principles to achieve high-accuracy, transferable flood forecasting in both natural and human-altered watersheds without relying on traditional parameter calibration or empirical fitting.

Mingyuan Wang2026-09-09

📄 earth science

Light regimes organize plant diversity across spatial scales

By integrating extensive vegetation data with Earth observation, this pan-European study demonstrates that light regimes near the ground are a fundamental driver of plant diversity, revealing that current widespread shifts toward low light availability and reduced spatial heterogeneity are creating a significant mismatch that threatens biodiversity across the continent.

Wanben Wu, Jens-Christian Svenning, Sean E. H. Pang, Jonathan Lenoir, Jürgen Dengler, Jesper Erenskjold Moeslund, Zvjezd (…)2026-09-09

📄 earth science

Global Morphological Thresholds Governing Urban Street Tree Microclimates Across 12 Megacities

By integrating a six-dimensional biometeorological solver with geospatial morphology across 12 megacities, this study reveals that uniform street tree planting targets often fail because strict geometric thresholds govern microclimates, frequently causing dense urban canyons to trap nocturnal heat and become thermal liabilities under future warming scenarios.

Chuyang Ma2026-09-09

📄 earth science

Mineral chemistry of intergrown rutile-garnet, and U-Pb dating of rutile from Medoumou-Ebol area, Central Cameroon: Provenance, age and Pan-African P-T metamorphic conditions of the protoliths

This study utilizes EPMA and LA-ICP-MS analyses of intergrown rutile-garnet from alluvial concentrates in the Medoumou-Ebol area of Central Cameroon to determine that the protoliths are metapelitic, underwent upper-amphibolite facies metamorphism at 10.11–10.37 kbar and 601–507°C, and experienced three distinct rutile growth episodes between 601 and 525 Ma during the Pan-African orogeny.

Charles NKOUMBOU2026-09-09

📄 earth science

Climate-smart healthcare waste management in urban primary health care facilities in Abuja, Nigeria: A situation analysis, proof-of-concept comparative baseline assessment of environmental sustainability practices and system readiness across four facilities

This proof-of-concept study assessing four primary healthcare facilities in Abuja, Nigeria, reveals that while waste segregation is largely functional, critical gaps in treatment and disposal—specifically the reliance on open burning and lack of renewable energy—result in significant environmental and climate risks, thereby validating the need for the proposed ClimateSENSE intervention to enhance climate-smart waste management practices.

Glory Nwakaogor, Dominic Gulak, Loveth Metiboba, Joshua Ogundairo, Onche Ogbole, Adedayo Odukoya, Fatimah Howeidy, Gift (…)2026-09-09

📄 earth science

Spatial Contamination Gradient and Electrical Conductivity as a Proxy Indicator for Landfill Leachate Impact on Himalayan Soils

This study establishes electrical conductivity as a cost-effective proxy indicator for mapping landfill leachate contamination in Himalayan soils, revealing a distinct 100–150 meter spatial gradient around Bhutan's Omtekha dumpsite and validating a replicable methodology for environmental risk assessment in resource-constrained mountain regions.

Yewong Choki, Yonten Dorji2026-09-09

📄 earth science

Fire Chronology Drives Understorey Diversity but Not Regeneration Dynamics in Himalayan Chir Pine Forests

This study of Bhutanese Chir pine forests reveals that while fire chronology significantly influences understorey diversity and soil chemistry, natural forest regeneration proceeds independently of soil recovery, suggesting that managers should prioritize protecting microhabitat complexity and seed availability over costly soil rehabilitation efforts.

Sujata Subba, Yonten Dorji2026-09-09

📄 earth science

Forest Carbon Sequestration Peaks at Intermediate Elevations: Structural and Climatic Drivers of Aboveground Biomass in Bhutan's Temperate Forests

This study reveals that aboveground tree biomass in Bhutan's temperate forests follows a unimodal distribution peaking at mid-elevations (2,000–2,500 m) due to optimal climatic and structural conditions, demonstrating that altitude-dependent drivers necessitate elevation-specific conservation strategies rather than simple linear models for effective climate mitigation.

Sonam Lhazeen Wangmo, Yonten Dorji2026-09-09

📄 earth science

Climate adaptation and livelihoods: Measuring vulnerability and job creation in India

This paper proposes a dual framework for India's climate adaptation that combines a Livelihoods Vulnerability Index to identify at-risk regions with input-output analysis demonstrating that investing 1.5% of GDP in adaptation measures could simultaneously create jobs for 1.3% of the labor force, thereby addressing both climate resilience and livelihood security.

Anjana Thampi2026-09-08

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