📄 Category

earth_science

2353 papers

📄 earth science

Material Flow Analysis of Titanium Metal in European Aviation: Circular Economy Strategies for reduced import dependence

This study combines static and dynamic material flow analyses to demonstrate that while circular economy strategies—particularly pre-consumer scrap retention and design optimization—could reduce European aviation's titanium import dependence by 25% by 2040, they cannot fully eliminate reliance on imports due to the sector's growing material stock and the need for domestic primary processing capacity.

Stefano Ghirlandi, Tim Hoff, Catrin Böcher, Benjamin Sprecher, Ahmad Ali Pohya, David Peck2026-10-14
📄 earth science

Joint water-supply and hydropower management in a capacity-depleted multipurpose reservoir: the two-input AD-2I–WE model for Akhangaran

This study introduces an adaptive two-input decision framework (AD-2I–WE) for the sediment-depleted Akhangaran Reservoir in Uzbekistan, demonstrating that integrating current storage levels with annual irrigation orders can simultaneously improve water security reliability by 6.3% and increase hydropower generation by 33.9% compared to observed operations.

Khojiakbar Khasanov2026-10-14
📄 earth science

Comparing the Impacts of Climate Risks and Climate Adaptation on Crop Yield among Smallholder Farmers in Ghana

Based on a study of 679 smallholder farmers in Ghana, while climate adaptation strategies can increase crop yields by up to 32%, the negative impact of prevailing climate risks on production remains significantly greater, highlighting the urgent need for complementary climate mitigation efforts.

Obed Kwaku Mahama, Powell Mponela, Osman T. Damba, Ghislain T. Tepa-Yotto, Mustapha Alasan Dalaa, Urcil Papito Kenfack E (…)2026-10-14
📄 earth science

VLPNet: A unified deep learning model for progressive single-station magnitude estimation from variable-duration P-waves in earthquake early warning

The paper introduces VLPNet, a unified deep learning model that enables progressive single-station magnitude estimation from variable-duration P-wave observations (0.5–6.0 s) without retraining, significantly improving accuracy and balancing warning timeliness with magnitude precision for earthquake early warning systems.

Chunde Lu, Aihemaitijiang Tuerhong, Xiaopeng Gu, Yongtao Ma, Xiaohong Long2026-10-14
📄 earth science

Spatio-temporal evolution and influencing factors of land-sea coordination in China’s coastal areas

This study analyzes the spatio-temporal evolution and driving factors of land-sea coordination across China's 11 coastal provinces from 2008 to 2024, revealing an overall improvement marred by spatial imbalances and identifying government support and openness as positive drivers while marine industrial agglomeration acts as a negative constraint.

Yuanyuan Lai, Weitong Guan, Huanqi Wang, Limin Han, Dahai Li, Rundong Feng, Kangsen Mai2026-10-14
📄 earth science

Potential Environmental, Health risk assessment and source identification of Heavy metals in Groundwater in a major agricultural hub in southwestern Bangladesh

This study reveals that groundwater in a major agricultural hub in southwestern Bangladesh is moderately to heavily contaminated with heavy metals from both geogenic and anthropogenic sources, rendering it unsuitable for direct human consumption and posing significant ingestion health risks, particularly to children.

Ayesha Aktar, Marzia Sultana Shefa, M. Safiur Rahman, Mehedi Hasan Ovi, Ahmed Parvez, Md. Fuad Hasan, Mahmud Hasan Princ (…)2026-10-14
📄 earth science

Steam Chamber Expansion and Recovery Mechanisms in Heavy Oil Reservoirs with Multiple Barriers: Experimental and Numerical Study

Through combined physical experiments and numerical simulations, this study demonstrates that while shale barriers positioned beside SAGD well pairs yield higher early production, barriers stacked directly above the injectors ultimately achieve superior final recovery by delaying oil mobilization between layers and enabling sustained steam chamber growth after bypassing the barriers.

Qichen Zhang, Pengxiao Sun, Huiqing Liu, Xiaohu Dong2026-10-14
📄 earth science

Study on Disaster Characteristics of Huaxi Autumn Rain and Trigger Mechanisms for Weather Index Insurance

This study addresses the basis risk in weather index insurance for Huaxi autumn rains by proposing a semantics-based disaster classification system that decomposes heterogeneous yield-loss events into homogeneous subgroups, demonstrating that while this approach significantly improves trigger accuracy for specific maize scenarios, it remains constrained by small-sample limitations in complex rice disaster pathways.

Zichuan Sun, Wulong Zhang, Gao Li, Kaichuan Xie, Weimin Xu, Liangxun Chen, Fengliang Zou, Jun Yang2026-10-14