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Preprints

There are 7398 Preprints listed.

Multipole Modeling for Magnetic Microscopy Constrained by Euler Deconvolution

Gelson F. Souza-Junior, Ualisson Donardelli Bellon, Leonardo Uieda, et al.

Published: 2026-08-07
Subjects: Earth Sciences, Geophysics and Seismology

Magnetic microscopy is rapidly advancing toward higher spatial resolutions and smaller sensor-to-sample distances. Under these conditions, dipolar approaches become increasingly limited because higher-order magnetic contributions can no longer be neglected when retrieving reliable full-vector information for paleomagnetic and rock magnetic applications. However, multipolar representations often [...]

Hydroclimatic Regime Shifts and Compound Heat–Dry Events in Rajshahi Division, Bangladesh: Integrating Thermal Gradients, Change-Point Detection, and Heat-Driven Dryness Dynamics (1992–2022)

IQBAL HOSSAIN

Published: 2026-08-07
Subjects: Climate, Environmental Indicators and Impact Assessment, Environmental Monitoring, Hydrology, Meteorology, Other Earth Sciences, Other Oceanography and Atmospheric Sciences and Meteorology, Statistical Models

Hydroclimatic variability and compound climate extremes are increasingly affecting monsoon-dominated regions of South Asia, particularly drought-prone northwestern Bangladesh. However, integrated assessments of thermal dynamics, atmospheric moisture, land–atmosphere coupling, and compound heat–dry events remain limited in the regional context. Therefore, this study investigated long-term [...]

On the stability of magnetic paleodirection and paleointensity at microscale

Gelson F. Souza-Junior, Ualisson Donardelli Bellon, Carolina Silveira de Moraes, et al.

Published: 2026-08-07
Subjects: Geophysics and Seismology

The geomagnetic field is a fundamental component of Earth's habitability, shielding the planet from high-energy cosmic radiation and solar-wind-driven atmospheric erosion. Understanding its long-term evolution relies on thermoremanent magnetization (TRM), the most robust recorder of past geomagnetic field direction and intensity. Traditionally, magnetic microscopy has been considered unsuitable [...]

Climatic distance to cultivar origin predicts Deglet Noor date quality across two continents

Chouaib Selkh, Samia Bissati, Abdelmadjid Chehma

Published: 2026-08-07
Subjects: Agronomy and Crop Sciences Life Sciences, Climate, Desert Ecology, Environmental Monitoring

Background. Premium-grade cultivars of terroir-controlled crops are tied to specific climatic origins, yet the quantitative relationships linking climate, soil and quality remain poorly resolved across whole production landscapes. Deglet Noor date palm — the historically dominant premium cultivar of North African oases, named for the optical translucency of its top-grade fruits — exemplifies this [...]

Explainable Deep Learning Techniques for Potato Leaf Disease Detection in Smart Agriculture

Dr Kazi Abdul Abdul Mannan, Maria Akter Khadiza

Published: 2026-08-07
Subjects: Life Sciences

Potato is one of the most important food and cash crops in Bangladesh, contributing significantly to food security and the national economy. However, potato production is severely affected by various leaf diseases, which reduce crop yield and quality when not detected at an early stage. Traditional disease diagnosis mainly depends on manual observation by agricultural experts, making the process [...]

A convolutional, scale-adaptive framework for large-scale shoreline change modeling

Mohsen Taherkhani, Sean Vitousek, Peter Ruggiero

Published: 2026-08-07
Subjects: Geomorphology

Understanding sandy beach evolution under geologic, hydrodynamic, morphologic, and anthropogenic influences, and particularly future climate variability and sea level rise, has become increasingly important. Several numerical models have been developed to simulate sandy beach evolution, ranging from high-fidelity, process-based models to reduced-complexity approaches, to data-driven and hybrid [...]

Evidence of rising groundwater and potential for sustainable management amid multi-year droughts in the pastoral regions of northern Kenya

Denis Macharia Muthike, Styvers Kathuni, Christian Muragijimana, et al.

Published: 2026-08-06
Subjects: Environmental Sciences

Groundwater underpins water security in the drylands of East Africa, where climate extremes and increasing groundwater use pose growing water management challenges. This study examines groundwater dynamics in arid northern Kenya using multi-source data that combine in-situ electronic sensor measurements with satellite-based rainfall observations, terrestrial water storage anomalies, and model [...]

Submesoscale frontal dynamics modulate ocean heat transport beneath Antarctic sea ice

Lia Siegelman, Andrew Thompson, Cosme mosneron-dupin, et al.

Published: 2026-08-06
Subjects: Physical Sciences and Mathematics

Antarctic sea ice has experienced unprecedented declines in recent years, yet the processes governing the transfer of subsurface ocean heat toward the ice remain poorly understood. Here, sub-kilometer hydrographic observations collected by an instrumented seal reveal intense, intermittent, and bidirectional vertical heat transport beneath sea ice in the East Antarctic marginal ice zone. During a [...]

Mapping Urban Heat Vulnerability in London: Multi-Scale Geospatial Analysis Using Machine Learning, SHAP Explainability, and Temporal Mortality Data

Adesuyi Adeoti, William Alston

Published: 2026-08-06
Subjects: Environmental Sciences, Physical Sciences and Mathematics

Urban heat is a significant cause of mortality. In London, during the summer of 2022, the United Kingdom experienced its first recorded 40°C day, resulting in excess mortality levels not observed since pre-antibiotic influenza seasons. On 19 July 2022, London reached a temperature of 40.3°C, the highest recorded in the United Kingdom, which corresponded to 18,435 excess deaths in England and [...]

Designing decision-centric early warning systems for climate tipping points: the North Atlantic Subpolar Gyre as a test case

Ekaterina Popova, Xinyi Bai, Elisabeth Clark, et al.

Published: 2026-08-06
Subjects: Earth Sciences, Physical and Environmental Geography

Early warning systems (EWS) for climate tipping point must support decisions to be useful. Using the potential near-term Subpolar Gyre tipping point as a test case, we develop a pre-elicitation framework linking Earth System science with decision-making. We show that no single EWS can meet diverse decision needs. Instead, the framework identifies shared decision architectures and information [...]

Twin indicators of coastal vulnerability: land subsidence and mangrove extent change in Dili, Timor-Leste

Lik Ren Tai

Published: 2026-08-06
Subjects: Climate, Environmental Indicators and Impact Assessment, Environmental Monitoring, Geomorphology, Geophysics and Seismology, Natural Resources and Conservation

Mangrove forests and land subsidence are major drivers of coastal vulnerability rarely quantified together outside the well-studied deltas of Southeast Asia. This study provides the first satellite-based, twin-indicator assessment of coastal vulnerability for Dili, Timor-Leste, combining Sentinel-1 InSAR time series analysis of land subsidence with Global Mangrove Watch extent change over a [...]

Floating algal beds and methane dynamics: a potential positive feedback loop

Sofia Baliña, Jose Paranaíba, Maite Colina Rama, et al.

Published: 2026-08-06
Subjects: Terrestrial and Aquatic Ecology

Eutrophic shallow freshwater ecosystems often develop floating filamentous microalgae on their surface during spring and summer, known as floating algal beds (FLAB). In recent years, FLAB has become more frequent and pronounced due to rising temperatures and drier conditions, sometimes even covering the entire surface of water bodies. New evidence suggests that phytoplankton can produce methane [...]

Moving fast without breaking things: The benefits of preprinting for CDR research

Tyler Kukla, Chris Allen

Published: 2026-08-06
Subjects: Biogeochemistry, Earth Sciences, Environmental Sciences, Other Earth Sciences, Other Environmental Sciences

Advocates of preprinting usually focus on its benefits to individual researchers — more feedback, citations, and visibility. We argue its greater value is collective: preprinting improves scientific coordination, which the carbon dioxide removal field needs in order to move fast without sacrificing rigor.

Socio-economic characterization and Natural Resource appraisal for watershed development around Pumped Storage Hydroelectric Project sites in Andhra Pradesh, India ​

Ravi K N, Battu Krishna Rao, Ravi Dupdal, et al.

Published: 2026-08-06
Subjects: Environmental Studies

A comprehensive baseline study was conducted to develop the watershed treatment plan around four Pumped Storage Hydro-electric Project sites in Andhra Pradesh, India. As a part of study, household survey was conducted with 450 samples around 10 km radius of project reservoir sites. The data was collected on socio-economic conditions of communities and natural resource status around the [...]

Strengthening informal urban functions for climate-resilient cities

Allen Glen Cumaya Gil

Published: 2026-08-05
Subjects: Medicine and Health Sciences, Social and Behavioral Sciences

Informal workers provide essential urban functions, yet climate hazards can disrupt the conditions that sustain them. We propose the informal urban function as an analytical unit linking worker conditions, functional performance, and sustainability outcomes. The framework identifies structural conditions shaping capacity, climate pathways leading to continuity, erosion, disruption, or [...]

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