Preprints
There are 5634 Preprints listed.
Floods and Water Management in Chiang Mai and the Upper Ping catchment, Northern Thailand
Published: 2025-04-17
Subjects: Geomorphology, Hydrology, Sedimentology, Water Resource Management
The city of Chiang Mai, Northern Thailand has been subject to regular major floods in the past couple of decades. In this review, we provide some background information on the hydrology of Upper Ping river catchment, the hydrogeology of the Chiang Mai – Lamphun basin, historical records of hydrological events in the area and more recent depictions of major floods. In the second part of this [...]
Artificial Intelligence in the polycrisis: fueling or fighting flames?
Published: 2025-04-16
Subjects: Environmental Studies
Artificial intelligence (AI) is increasingly entangled with the polycrisis—persistent, interconnected disruptions shaping the Anthropocene. Using the Anthropocene Traps framework, we analyze 14 structural, self-reinforcing dynamics, revealing how AI both reinforces and potentially counteracts polycrisis. While AI may enhance information gathering, efficiency, and ecological research, it also [...]
ANALYSING THE PLANT VARIETY PROTECTION WITH RESPECT TO FOOD SECURITY IN INDIAN CONTEXT
Published: 2025-04-16
Subjects: Education, Social and Behavioral Sciences
Ending hunger, achieving food security and sustainable agriculture is the second Sustainable Development Goal (SDG) out of seventeen SDGs of United Nations and it aims to ensure food security and nutrition to each individual globally. Plant varieties protection (PVP)and plant breeders’ rights protection agreements and laws like International Union for the Protection of New varieties of Plant [...]
What the landscape can tell: An integrative stratigraphic prospection approach for localizing a Black Death mass grave in Erfurt/Central Germany
Published: 2025-04-15
Subjects: Life Sciences
The Black Death pandemic (1346-53) has caused a 30-50% population decline across Europe. For the city of Erfurt in Thuringia, substantial human losses and corresponding mass graves are well-documented in historical archives. The aim of our study is to localize these mass graves in the deserted village of Neuses in order to validate the written sources and to obtain skeletal remains for future [...]
Assessing legacy nitrogen in groundwater using numerical models of the Long Island aquifer system, New York
Published: 2025-04-15
Subjects: Earth Sciences, Environmental Sciences, Hydrology, Physical Sciences and Mathematics, Water Resource Management
Nitrogen transported along groundwater flow paths in coastal aquifers can contribute substantially to nitrogen loading into surface water receptors, particularly in hydrologic systems dominated by groundwater discharge. Nitrogen entrained in the aquifer is a function of land use and associated nitrogen sources at the time of groundwater recharge, which may differ considerably from present-day [...]
Artificial Intelligence-Based Joint Retrieval Algorithm for Land Surface Temperature, Emissivity, and Atmospheric Water Vapor
Published: 2025-04-15
Subjects: Earth Sciences
The thermal infrared remote sensing parameters exhibit interdependent and mutually constrained relationships, which conventional methods fail to fully exploit for improving the overall retrieval accuracy across different parameters. To address this challenge, this study proposes an artificial intelligence-based method for jointly retrieving land surface temperature (LST), emissivity (LSE), and [...]
Drivers of changes in shoreline position of two small reef islands in the West Philippine Sea
Published: 2025-04-15
Subjects: Earth Sciences
This study examines the variations in the shoreline position of two atoll reef islands in the West Philippine Sea, Pag-asa Island, and Lawak Island, and identifies the influence of potential drivers of erosion. Data from field observations, beach profiling, and Google Earth Pro satellite images from 2004 to 2022 are used to identify shoreline movement for each island. Shoreline change is [...]
Missing well logs prediction method based on K-nearest neighbors regression
Published: 2025-04-14
Subjects: Engineering, Physical Sciences and Mathematics
In petroleum exploration, well logs are crucial for reservoir characterization. However, missing well logs frequently occur due to tool failures or economic constraints, which can impede accurate subsurface modeling. This research presents a method for predicting missing well logs using the K-Nearest Neighbors (KNN) regression algorithm, trained on data from the University of Kansas. The study [...]
A realistic climate strategy
Published: 2025-04-12
Subjects: Climate, Environmental Health and Protection, Environmental Indicators and Impact Assessment, Environmental Sciences, Environmental Studies, Oceanography and Atmospheric Sciences and Meteorology, Social and Behavioral Sciences, Sustainability
The international climate strategy is failing. Current policies will act too slowly to prevent rising temperatures from crossing critical climate tipping points. IPCC assessments underestimate the non-linear risks and catastrophic costs of overshooting Paris Agreement targets. Opponents of solar geoengineering cite concerns about moral hazard and other potential risks; however, at this juncture [...]
Greenhouse Gas (GHG) Emissions Poised to Rocket: Modeling the Environmental Impact of LEO Satellite Constellations
Published: 2025-04-12
Subjects: Astrophysics and Astronomy, Earth Sciences, Environmental Sciences, Physics
The proliferation of satellite megaconstellations in low Earth orbit (LEO) represents a significant advancement in global broadband connectivity. However, we urgently need to understand the potential environmental impacts, particularly greenhouse gas (GHG) emissions associated with these constellations. This study addresses a critical gap in modeling current and future GHG emissions by developing [...]
Targeting bias in algorithm optimization improves reconstructions of surface ocean pCO2
Published: 2025-04-12
Subjects: Physical Sciences and Mathematics
In order to fully understand current and future climate impacts from rising carbon emissions, it is crucial to accurately quantify the air-sea CO2 flux and the ocean carbon sink in space and time. Air-sea flux estimates from observation-based data products used in the Global Carbon Budget show a large spread, and suggest a stronger carbon sink than global ocean biogeochemistry models (GOBMs) in [...]
Comprehensive Flood Impact Assessment for Iowa Bridge Infrastructure Using Integrated AHP and Fuzzy AHP Analysis
Published: 2025-04-11
Subjects: Civil and Environmental Engineering
Flooding poses a significant threat to transportation infrastructure like bridges and culverts in regions like Iowa, where infrastructure deficiencies, unpredictable climate patterns, and geographic factors all contribute to vulnerability. This study evaluates the susceptibility of over 24,000 bridges in Iowa to flood-induced damage by considering both the likelihood of flooding and its potential [...]
Comparative Analysis of Flood Risk Zoning and Susceptibility Assessment for the Western Corn Belt Plains using Geospatial Techniques
Published: 2025-04-11
Subjects: Education, Engineering
Flooding is among the most destructive natural hazards, causing severe socioeconomic and environmental impacts. Accurate flood susceptibility assessment is critical for effective mitigation and sustainable resource planning. This study integrates Geographic Information Systems (GIS), Remote Sensing (RS), and multi-criteria decision-making (MCDM) methods to evaluate flood vulnerability across four [...]
Tidal flexure reveals effective elasticity in grounding zones on the Ross Ice Shelf
Published: 2025-04-11
Subjects: Earth Sciences, Glaciology, Physical Sciences and Mathematics
The grounding zones of Antarctic ice shelves are among the continent’s most dynamic regions, where floating ice shelves buttress grounded upstream ice and tidal forcing drives cyclic flexure at the ice-ocean-bed interface. We use ICESat-2 altimetry and airborne ice-penetrating radar to constrain the effective Young’s modulus E* of ice in the flexure zone at three sites on the Ross Ice Shelf. By [...]
Four-Decade Analysis of Fire Behavior in the Brazilian Caatinga Biome 1985-2023
Published: 2025-04-11
Subjects: Forest Management, Geographic Information Sciences, Natural Resources and Conservation, Physical and Environmental Geography, Remote Sensing
The Caatinga, unique in northeastern Brazil, has species adapted to the semi-arid climate. Recurrent fires put its biodiversity at risk, highlighting the need for urgent measures to protect this fragile ecosystem. This study analyzed four decades of fire behavior in the Caatinga biome (1985-2023) using data from the MapBiomas Fire project and spatial analysis, revealing a worrying dynamic of [...]