Preprints
There are 6844 Preprints listed.
‘Egg that tastes like egg’: An ethnographic and economic inquiry into the assets and challenges of the organic farming market in the Canary Islands
Published: 2026-04-23
Subjects: Environmental Studies
The development of self-sufficient organic food systems has become an important focus in the Canary Islands, where reliance on imported foods and conventional agriculture are predominant. This study examines the main challenges and opportunities in the market through eleven on-site, semi-structured interviews combined with participant observation. Thematic analysis was conducted and findings were [...]
Assessing Causality in PM2.5 and NO2 Changes One Year After New York City’s Congestion Pricing Policy
Published: 2026-04-23
Subjects: Atmospheric Sciences, Climate, Environmental Sciences
On January 5, 2025, New York City implemented the Central Business District Tolling Program (CBDTP), a congestion pricing policy targeting lower Manhattan. We evaluate its air quality effects after one year using ground-based and satellite observations. Using New York City Community Air Survey (NYCCAS) real-time PM2.5 monitors, we compare PM2.5 concentrations during the first year of CBDTP [...]
A proposal for a horizontal vector approach in 3D electrical resistivity tomography and its associated geometric factor
Published: 2026-04-23
Subjects: Physical Sciences and Mathematics
Electrical resistivity tomography (ERT) is commonly implemented with collinear electrode arrays that measure only electric-field components along the survey line, neglecting horizontal variations in other directions. While this limitation is acceptable in 2D ERT, it can be significant in 3D settings with complex geometry and strong resistivity contrasts. To address this issue, we propose an [...]
Erosion-driven changes in soil cation exchange capacity quantified using barium isotopes
Published: 2026-04-23
Subjects: Biogeochemistry, Earth Sciences, Geochemistry, Geomorphology, Physical Sciences and Mathematics, Soil Science
Human activities have perturbed the balance between rates of soil erosion and formation, driving declines in soil quality. However, quantifying these soil imbalances remains challenging, especially at large scales. Here we present a novel isotope mass balance approach that can be used to quantify river catchment wide rates of change in cation exchange capacity (CEC), a key soil quality metric, in [...]
Late Holocene tsunami hydrodynamics, sediment provenance and chronology from Dury Voe, Shetland Islands (UK)
Published: 2026-04-23
Subjects: Earth Sciences, Sedimentology
The Shetland Islands are one of the key sites in the Atlantic Ocean to study tsunami deposits, with three major events identified during the Holocene so far. Here, we aim to (i) reconstruct hydrodynamics of the late Holocene Dury Voe tsunami, (ii) constrain the sediment source area, and (iii) refine its age estimate. Onshore sandy deposits bracketed by thick dystrophic peat as well as marine [...]
Spaceborne imaging spectrometry of methane plumes: Quantifying the benefit of aerosol lidar
Published: 2026-04-22
Subjects: Earth Sciences, Environmental Sciences, Physics
Column averaged mixing ratios of trace gases, such as methane (XCH4), from spaceborne pushbroom spectrometers can be used to detect corresponding plumes and retrieve enhancements (ΔXCH4), i.e., the difference between plume and background XCH4. Over the global dust belt, however, significant scattering by dust aerosols may cause biased XCH4 that may propagate into biased ΔXCH4. To correct this, a [...]
Mesozoic ocean plate stratigraphy reveals a Franciscan plate separating Farallon and North America
Published: 2026-04-22
Subjects: Physical Sciences and Mathematics
Ocean plate stratigraphy preserved in the Franciscan Complex recorded the Mesozoic plate tectonic evolution of the North American Cordillera and eastern Pacific basin. New and published ocean floor and accretion ages for Jurassic–Cretaceous oceanic crust, derived from detrital zircons and radiolarians, indicate that eastward younging ocean floor existed between the Farallon and North American [...]
First-principles theory for Earth's tropical-midlatitude climate boundary
Published: 2026-04-22
Subjects: Physical Sciences and Mathematics
In Earth's climate, the boundary between the tropics and midlatitudes is a key determinant of temperature and precipitation characteristics, influencing human societies through daily weather, atmospheric chemistry, carbon cycling, and vegetation distribution. The physical origin of these climate zones has been investigated through idealized simulations, observations, and state-of-the-art climate [...]
A hybrid physics–ML framework for integrating groundwater dynamics into land surface modeling
Published: 2026-04-22
Subjects: Engineering, Physical Sciences and Mathematics
Settling and Rising Dynamics of River Litter
Published: 2026-04-22
Subjects: Engineering, Life Sciences, Physical Sciences and Mathematics
Global assessments of river litter transport, accumulation, and export to the oceans remain constrained because the particle-scale hydrodynamic variables governing litter movement are currently unknown. We resolve this by explaining the vertical dynamics of full-scale river litter in quiescent water through multi-camera, three-dimensional trajectory reconstructions of over a thousand litter items [...]
A Meteorological Indicator for Particulate Matter Emissions: Adapting the Hot-Dry-Windy Index to Predict Feedlot Evening Dust Peaks
Published: 2026-04-21
Subjects: Agriculture, Animal Sciences, Bioresource and Agricultural Engineering, Civil and Environmental Engineering, Engineering, Environmental Engineering, Environmental Sciences, Life Sciences, Physical Sciences and Mathematics
Particulate matter emissions from cattle feedlot operations pose significant challenges to both livestock productivity and air quality in surrounding communities. The evening dust peak (EDP) has been documented for decades, but comprehensive long-term studies examining its meteorological drivers are very limited. While laboratory and field-scale investigations have demonstrated that feedlot [...]
Xerokampos Evidence for a localized hot desert microclimate enclave
Published: 2026-04-21
Subjects: Climate
This study investigates the spatial precipitation distribution and microclimatic characteristics of the coastal enclave of Xerokampos, Lasithi in Greece. Utilizing a local meteorological time series (2020-2026), the mean annual precipitation (MAP) is recorded at 219.5 mm, alongside a mean annual temperature of 20.9°C. To contextualize these limited contemporary observations, a synthetic climate [...]
Buffered Byproduct Regime Shift: Deceptive Stability, Buffer Slack, and Regime Reorganization in Earth-System Transitions
Published: 2026-04-21
Subjects: Biogeochemistry, Climate, Earth Sciences, Geochemistry, Other Environmental Sciences
Earth history includes episodes in which biological or geophysical processes generate persistent byproduct loads whose early effects are partially masked by environmental sinks and buffering pathways. This paper synthesizes established literatures on Earth-system revolutions, redox transitions, mass extinctions, and Anthropocene change into an explicit phase grammar termed Buffered Byproduct [...]
Quantifying hydropower flexibility during extreme temperature events
Published: 2026-04-21
Subjects: Computational Engineering, Environmental Engineering, Hydraulic Engineering, Hydrology, Other Civil and Environmental Engineering, Other Mathematics, Power and Energy, Systems Engineering
Extreme weather events can impose substantial stress on the electrical grid. Hydropower offers unique operational flexibility, enhancing grid resilience and reliability. Despite this value of flexibility, systematic assessments of hydropower flexibility -- particularly during extreme events -- remain limited. This study is the first to quantify hydropower operational flexibility using 25 years' [...]
Regional Economic Impacts and Emission Responses under Solar Radiation Modification
Published: 2026-04-20
Subjects: Atmospheric Sciences, Climate, Nature and Society Relations, Oceanography and Atmospheric Sciences and Meteorology, Physical Sciences and Mathematics, Social and Behavioral Sciences
Solar Radiation Modification (SRM) has been proposed as a potential tool to limit increases in global or regional temperatures caused by anthropogenic greenhouse gas emissions. While previous research has extensively examined the climate system's response to various SRM strategies, as well as their aggregate economic consequences, the regional distribution of economic impacts has received less [...]