Preprints
There are 7999 Preprints listed.
When Fiction Reflects Fiction: Contrarian Views of Climate Change in Popular Entertainment TV & Films
Published: 2026-05-23
Subjects: Environmental Studies
Climate contrarian discourse permeates a wide range of media outlets, including popular entertainment television shows and films. This study identifies and quantifies the frequency of these views within a large global corpus of entertainment scripts derived from film and television subtitles (N = 223,782). Additionally, drawing on a discourse studies perspective, we evaluate the performance of a [...]
The role of neglected and underutilised crops in food and nutrition security under climate change: Insights from South Africa
Published: 2026-07-16
Subjects: Agriculture
Neglected and underutilised crop species (NUS) are increasingly discussed as options to enhance the resilience, diversity and nutritional quality of food systems under climate change. However, their productivity and nutritional contribution remain insufficiently quantified at larger scales, making it unclear to what extent they can contribute to food and nutrition outcomes. In South Africa, we [...]
Agricultural drought monitoring with Sentinel-1 Cross-Ratio in heterogeneous tropical agriculture: a Mozambique case study
Published: 2026-05-23
Subjects: Agriculture, Environmental Monitoring
Agricultural drought monitoring is essential for food security in tropical regions where rain-fed agriculture predominates. Operational early warning systems rely primarily on optical vegetation indices, but cloud cover limits their usability during critical growing periods. SAR satellites can observe through clouds, yet their adoption in agricultural drought monitoring remains limited. This [...]
Colonial Hydrologies and Local Ecologies: An Ethnographic Study of the Beas River Region in Punjab, Pakistan
Published: 2026-06-04
Subjects: Environmental Studies
The disappearance of the Beas River in Pakistan's Punjab, completed by a natural migration of the river's channels between 1750 and 1800, predates colonial hydraulic intervention, the partition of 1947, and the Indus Water Treaty of 1960. Each successive political and infrastructure development has not caused the river to disappear, but has gradually formalized and deepened it, removing any [...]
A static arrest criterion classifies some fault-spanning ruptures as arrested
Published: 2026-10-21
Subjects: Earth Sciences, Geophysics and Seismology, Physical Sciences and Mathematics
A static arrest length and a fully dynamic rupture are compared, one rupture at a time, for 60 antiplane and 60 in-plane cases on one 120 km fault with linear slip weakening and one correlation length of the initial stress. The standard deviations were fixed before those ruptures were drawn. The comparison tests the rule, used to build earthquake populations, that a rupture stops where its static [...]
Late Cretaceous channel flow in Western Arizona: Implications for the ancestral origin of metamorphic core complexes
Published: 2026-06-04
Subjects: Physical Sciences and Mathematics
The origin of ancestral ’extensional’ shear fabrics in metamorphic core complexes (MCCs) in the Colorado River Extensional Corridor remains a tectonic mystery. Here we show that Late-Cretaceous metamorphic rocks and migmatites in the Harcuvar-Harquahala and Granite Wash Mountains MCCs reached peak metamorphic conditions of ca. 0.75 GPa and 780°C and were extruded towards the SW onto lower grade [...]
Coastal Wetland Restoration and Greenhouse Gas Pathways: A Global Meta-Analysis
Published: 2025-11-14
Subjects: Biology, Ecology and Evolutionary Biology, Environmental Microbiology and Microbial Ecology Life Sciences, Life Sciences, Marine Biology, Microbiology, Terrestrial and Aquatic Ecology
Coastal wetland restoration is widely promoted as a tool for climate change mitigation, but its effect on the carbon cycle is not well constrained. We conducted a systematic review and meta-analysis of peer-reviewed field studies that directly contrasted restored with altered sites, covering carbon stocks and greenhouse gas fluxes across mangroves, saltmarshes, seagrass meadows, brackish [...]
Threshold Sensitivity and Reference Uncertainty in Sentinel-1 Inundation Mapping: The July 2021 Mahad Flood
Published: 2026-10-30
Subjects: Environmental Monitoring, Geomorphology, Hydrology, Water Resource Management
Synthetic Aperture Radar (SAR) is widely used to map flood inundation under cloud cover, but backscatter-based mapping is sensitive to processing choices, and quantitative evaluation depends on reference data that are often unavailable. This paper examines both issues for the July 2021 flood at Mahad, Maharashtra, India. Three Sentinel-1A VV/VH scenes from one descending orbit, acquired on 10 [...]
A multisectoral data integration framework and geospatial visualisation for last-mile heat-health decision making: A pilot deployment study in Rajasthan, India
Published: 2026-07-10
Subjects: Public Health
Adaptation for extreme heat depends on identifying and responding to populations most vulnerable to heat-related illnesses. Yet, in many low- and middle-income countries the data needed to assess vulnerability remains fragmented across disconnected information systems. As a result, frontline health officials plan their response strategies using limited, underreported, and retrospective [...]
Why Bandung heard the September 2026 Anak Krakatau eruption and Jakarta did not: eruption timing, ray tracing and search-interest evidence, compared with April 2020
Published: 2026-10-17
Subjects: Atmospheric Sciences
During the night of 4–5 September 2026, residents of the Bandung area, 240–300 km from Anak Krakatau, reported repeated booms and rattling windows, while Jakarta, 150 km from the volcano, reported almost none. The Indonesian meteorological agency (BMKG) first judged the volcano too distant and the winds unfavourable, then attributed the booms to the eruption. We test the volcanic explanation with [...]
Post-glacial sedimentary evolution and stratigraphy of the shallow offshore areas of the Shetland Islands (UK)
Published: 2026-05-25
Subjects: Earth Sciences, Geology, Geophysics and Seismology, Sedimentology, Stratigraphy
We present a high-resolution seismic–sedimentological reconstruction of post-glacial sedimentation in three shallow offshore basins around the Shetland Islands (Dury Voe, Colgrave Sound/Basta Voe, and Yell Sound), based on integrated multibeam bathymetry, sub-bottom profiler data, and 77 vibrocores supported by radiocarbon dating. Sediment distribution is strongly controlled by inherited bedrock [...]
Empirical constraints on the fraction of surface latent heat flux reaching the top of atmosphere as net radiative cooling
Published: 2026-06-04
Subjects: Atmospheric Sciences, Climate, Hydrology
The transfer fraction η, defined as the ratio of net cloud radiative effect at the top of atmosphere to surface latent heat flux (η = |CRE_net| / LE), is a fundamental coupling parameter linking surface hydrology to TOA radiation. Despite its relevance to cloud feedback and biophysical forcing, η has not been directly constrained by co-located observations at the spatial scales relevant to [...]
Coseismic uplift as strandplain-building mechanism: morphodynamic and stratigraphic evidence from the 2010 Maule earthquake, south-central Chile
Published: 2026-06-09
Subjects: Earth Sciences, Geomorphology, Physical and Environmental Geography, Tectonics and Structure
Coseismic uplift along convergent margins drives rapid coastal progradation, yet its short-term morpho-stratigraphic response remains poorly documented at human timescales. Here we integrate four complementary high-resolution proxies: satellite-derived shorelines, multi-temporal mapping of the seaward dune vegetation line (SVDL), ground-penetrating radar stratigraphy, and UAV–LiDAR topographic [...]
Effect of chemical disequilibrium during metal-silicate partitioning on the thermal state of the early core
Published: 2025-11-05
Subjects: Earth Sciences, Geochemistry, Geophysics and Seismology, Planetary Geology, Planetary Geophysics and Seismology
In this study, we improved a previously published numerical model linking the core composition to the core temperature during accretion by introducing the possibility of chemical disequilibrium during the segregation of the core in the magma ocean phase. Our study shows that at least 60% of the accreting metal needs to be equilibrated in order to obtain a chemically coherent Earth, thus favoring [...]
Microplastic deposition controlled by fluvial sedimentary facies in an urban river
Published: 2026-06-02
Subjects: Physical Sciences and Mathematics
Microplastic particles (MP) are characterised by their irregular shapes, lower density relative to natural grains, often failing at subscribing to sedimentological transport laws under controlled experimental conditions. Mismanagement of plastic waste, including associated environmental and health concerns, underpins the importance of systematic field-based behavioural observations on their [...]