Preprints
There are 7700 Preprints listed.
Contrasting oil and gas methane emission intensities across Algeria's major production basins derived using MethaneSAT data
Published: 2026-08-28
Subjects: Atmospheric Sciences, Climate, Natural Resources Management and Policy, Oil, Gas, and Energy
Algeria, Africa's largest natural gas producer and a major European Union gas supplier, has limited basin-scale assessment of oil and gas methane emissions. Here, we use MethaneSAT observations from September 2024 to May 2025 to quantify methane emissions across three Algerian production regions representing 73% of national onshore production. Total methane emissions are 18 t h⁻¹ [11–25] in Hassi [...]
Coupling between Walker and Hadley circulations mediated by low cloud feedback
Published: 2026-08-28
Subjects: Atmospheric Sciences, Climate
The tropical Pacific hosts the primary region of deep convection and forms the shared ascending branch of the Walker and Hadley circulations, which regulate the distribution of energy, angular momentum, and moisture across the climate system. Despite their importance and spatial entanglement, the dynamical coupling between these two circulations remains poorly understood. Here we show that the [...]
An Open-Source, Data-Driven Interactive Web Framework for 3D Visualization of Geoheritage Sites: A Case Study of the Grand Canyon Arizona, United States
Published: 2026-08-28
Subjects: Computer and Systems Architecture, Geology, Geomorphology
Effective dissemination, public engagement, and educational utilization of prominent geoheritage sites are often hindered by the steep learning curves, high computational requirements, and licensing costs inherent to professional Geographic Information Systems (GIS) and 3D geological modeling software. To bridge this accessibility gap and democratize spatial data, we present a universal, [...]
Beyond 2030 Agendas: Toward Conditional Convergence in Global Sustainability Governance
Published: 2026-08-28
Subjects: Life Sciences, Social and Behavioral Sciences
As major sustainable-development frameworks approach 2030, “Beyond 2030” conversations are emerging across the UN system. This review synthesizes seven tracks: the 2030 Sustainable Development Goals (SDGs), Sendai Framework for Disaster Risk Reduction, Kunming-Montreal Global Biodiversity Framework, United Nations Convention to Combat Desertification (UNCCD), Global Goal on Adaptation (GGA) under [...]
Species-specific plant water status responses to land surface temperature vary across three cities with different precipitation patterns
Published: 2026-08-28
Subjects: Life Sciences
As urbanization intensifies and global climate warms, people are exposed to high urban temperatures. Mature trees can reduce human exposure to extreme heat; however, urban forests also experience hot temperatures that may affect their physiological function. To investigate how urban heat, specifically land surface temperature (LST), vapor pressure deficit (VPD), and city-level precipitation [...]
Integrated soil profile mapping reveals regional patterns of soil condition across Southern African agricultural lands
Published: 2026-08-28
Subjects: Agriculture, Applied Statistics, Environmental Sciences, Geographic Information Sciences, Physical and Environmental Geography, Soil Science, Spatial Science, Statistical Models
Soil information at regional scales remains limited in Africa despite its importance for sustainable agricultural management, food security and land degradation assessment. Existing digital soil mapping approaches commonly model soil properties as independent depth layers and apply depth harmonisation after prediction, limiting their capacity to characterise changes in soil condition. Here, we [...]
Quantifying onset period rather than single date reveals projected intensification of dry-to-wet season transition.
Published: 2026-08-28
Subjects: Climate, Oceanography and Atmospheric Sciences and Meteorology
Recent years have seen increasingly frequent delayed rainfall onset, especially in South America (SAm) and Southern Africa (SAfr). This arrival of the wet season is critical to water resources, ecosystems, and rain-fed agriculture. Existing rainfall-based approaches define the rainfall onset by a single date, limiting their ability to characterise the progression into the wet season. We introduce [...]
Biological Dynamics for Sustainable Carbon Sequestration
Published: 2026-08-28
Subjects: Atmospheric Sciences, Biology, Climate, Environmental Microbiology and Microbial Ecology Life Sciences, Forest Management, Planetary Biogeochemistry
Earth’s atmosphere is shaped by the interplay of biological systems operating across interlinked biogeochemical cycles and, more recently, by anthropogenic emissions. Here, we thoroughly examine the potential for engineering biological systems across ecosystems for sustainable carbon storage. This centralization and comparative analysis of the potential of all key global ecosystems aims to [...]
Automated karst spring catchment approximation for discharge modelling
Published: 2026-08-27
Subjects: Hydrology
Karst spring discharge modelling is complicated by the limited availability of hydrogeologically delineated catchments, particularly in large-sample applications. We present an automated approach to approximate karst spring catchments from discharge, gridded recharge, and topography and evaluate its suitability for discharge modelling at 63 springs across the wider Alpine region. Recharge-area [...]
Simplified heat budgets can yield misleading diagnoses of ocean temperature change
Published: 2026-08-27
Subjects: Physical Sciences and Mathematics
Temporal changes in upper ocean temperature (𝑇) are crucial indicators of climate variability, change, and its environmental impacts. Ocean heat budgets (OHBs) used to understand these changes are a standard tool across multiple disciplines, but the vast majority of OHBs in published research rely on approximations that are rarely documented and tested. Here, we use output from the CESM2 model to [...]
Probabilistic assessment of tropical cyclone recovery burden across US Atlantic and Gulf Coast counties
Published: 2026-08-27
Subjects: Climate, Other Earth Sciences
Tropical cyclones cause widespread damage to housing and infrastructure, and recovery is often slow and uneven. Climate risk assessments quantify the likelihood and direct impacts of extreme events, but post-disaster recovery remains largely absent from these models, limiting our ability to assess long-term resilience. We therefore integrate simplified recovery modeling into probabilistic [...]
Maternal and neonatal vulnerability in a flood-prone area: a mixed-methods study in Agbétiko canton, Togo
Published: 2026-08-27
Subjects: Public Health
Flooding is increasingly recognised as a determinant of maternal and neonatal health in low-resource settings, yet the mechanisms by which it disrupts access to obstetric care remain poorly documented in West Africa. This mixed-methods study examined whether the flood season constitutes a period of heightened vulnerability for obstetric care access in the rural canton of Agbétiko, Togo. A [...]
Physics-informed LSTMs improve streamflow prediction when storage–discharge dynamics are temporally resolved
Published: 2026-08-27
Subjects: Engineering
Flood prediction at sub-daily resolution requires models that are accurate and physically plausible beyond observed conditions. We augment a per-basin Long Short-Term Memory network with a linear reservoir constraint (Q = KS), embedding storage-discharge dynamics as a soft physics loss, and evaluate it in hourly and daily streamflow-prediction experiments across New Zealand and Great Britain. At [...]
Multi-Scale Pixel and Slope-Unit Landslide Susceptibility Mapping with Applicability-Domain Validation: Evidence from the Karnali Highway Corridor, Western Nepal
Published: 2026-08-26
Subjects: Engineering
Landslides along Himalayan Road corridors cause repeated loss of life and prolonged disruption of access, yet susceptibility products for these settings rarely report how far their predictions can be trusted away from the training data. This study maps landslide susceptibility for the Karnali Highway (NH 58) corridor in western Nepal (about 2,155 km2) and pairs the map with an explicit [...]
Desert pavements stabilise arid vegetation patterns
Published: 2026-08-26
Subjects: Desert Ecology, Earth Sciences, Geomorphology
Some vegetation patterns have aridity-dependent morphology. On low-angle arid hillslopes, vegetation organises into bands which follow topographic contours. Terraces emerge with these bands due to vegetation’s drag on sediment-laden runoff, creating a topographic signature of life diagnostic of precipitation rate. Another widespread feature of arid environments is desert pavement, surficial [...]