Preprints
There are 8009 Preprints listed.
A Unified Forearc Subsidence Model Based on the Three-Arc Unjoined Structure of the Honshu Arc
Published: 2026-09-06
Subjects: Physical Sciences and Mathematics
This study reinterprets the subsidence, uplift, fault activity, and geomorphic development observed in the Nōbi Plain, Ise Bay, Lake Biwa, Wakasa Bay, and Osaka Bay through a new structural framework in which the Honshu Arc is understood as an incompletely joined system of three arcs. The Southwest Japan Arc (narrow sense), the Hida–Tamba Terrane, and the Northeast Japan Arc approached each other [...]
Agentic Large Language Model Workflows for Earth Observation: Tool Orchestration, Foundation-Model Adaptation, and the Evaluation Gap
Published: 2026-09-05
Subjects: Engineering
Large language model (LLM) agents have moved rapidly from general-purpose assistants to domain systems that orchestrate specialised remote-sensing models. Within roughly two years, geospatial agents have demonstrated reliable task planning across dozens of Earth Observation (EO) tasks, benchmark environments containing hundreds of tools, and fine-tuned open-weight controllers that outperform far [...]
BORDER OPTICS : Satellite Verification of India's Vibrant Villages Programme: A Compositing-Window Robustness Assessment of Border-Village Development
Published: 2026-09-05
Subjects: Earth Sciences, Environmental Education, Environmental Indicators and Impact Assessment, Environmental Monitoring, Environmental Sciences, Environmental Studies, Geographic Information Sciences, Geography, Human Geography, Natural Resource Economics, Natural Resources and Conservation, Natural Resources Management and Policy, Nature and Society Relations, Physical and Environmental Geography, Remote Sensing, Spatial Science, Sustainability
Ask the Government of India if things have worked out for them with their flagship scheme for the Border Villages, the honest answer (on parliamentary record) is No, it has never been verified anywhere. The Vibrant Villages Programme (VVP-I) has approved around ₹4,800 crore in support of 2,967 villages in five Himalayan border states/union territories including 662 villages marked 'priority' for [...]
Deglacial Mass-Movement Floods as a Potential Source of Catastrophic Flood Traditions: A Testable Geomythological Hypothesis
Published: 2026-09-05
Subjects: Earth Sciences, Geology, Geomorphology, Glaciology, Hydrology
Catastrophic flood traditions occur in many geographically separated cultures, but their possible geological substrates need not be uniform. Existing explanations include river floods, earthquake and volcanic tsunamis, glacial-lake outburst floods, postglacial sea-level rise, and cultural transmission. This paper proposes a complementary, explicitly testable hypothesis: during the terminal [...]
Methodological Bias between Trajectory Geometric Co-location and Air-Parcel Lagrangian Co-location: Evidence from UAV Re-penetration Observations over the Western Sichuan Plateau
Published: 2026-09-05
Subjects: Atmospheric Sciences, Meteorology
Whether "trajectory geometric co-location" is equivalent to "air-parcel Lagrangian co-location" remains a methodological blind spot in evaluating UAV cloud-seeding re-penetration (the UAV performed a repeated cloud penetration—hereafter, re-penetration—to re-sample the same cloud volume). Using silver iodide (AgI) seeding observations from a Wing Loong-2 UAV flight over the Western Sichuan [...]
What Does a Country-Level Difference-in-Differences on Satellite NO₂ Identify? Baseline Composition, Winter Retrievals and the European Climate Law
Published: 2026-09-05
Subjects: Earth Sciences, Environmental Sciences, Environmental Studies, Geographic Information Sciences, Geography, International and Area Studies, Oceanography and Atmospheric Sciences and Meteorology, Physical and Environmental Geography, Remote Sensing, Spatial Science, Statistics and Probability
Satellite observations make it easy to compare air pollution in countries that adopted a policy with countries that did not. This paper examines what such a comparison identifies. It uses Sentinel-5P TROPOMI tropospheric NO₂ for 2019–2024 and a country-level difference-in-differences (DiD) model of the European Climate Law that compares the EU-27 with nine neighbouring non-EU countries. NO₂ fell [...]
What Did the Destruction of the Kakhovka Dam Do to Vegetation? Separating Flood, Reservoir and Irrigation Effects with Satellite Data
Published: 2026-09-05
Subjects: Applied Statistics, Biodiversity, Earth Sciences, Environmental Sciences, Geographic Information Sciences, Geography, Human Geography, International and Area Studies, Other Geography, Physical and Environmental Geography, Remote Sensing, Spatial Science, Statistical Methodology, Statistical Models, Statistics and Probability
The Kakhovka Dam in southern Ukraine was destroyed on 6 June 2023. This could have changed vegetation in three ways: through the flood below the dam, the draining of the reservoir, and the loss of water for the irrigation canals. All three happened inside an active war zone. I tested each pathway separately with MODIS NDVI at 250 m resolution for 2016–2024. Treated land was defined by what [...]
DOUBLE JEOPARDY: Do Coastal Rules Reach the People at Risk? Comparing Five Island Jurisdictions
Published: 2026-09-05
Subjects: Biodiversity, Earth Sciences, Environmental Monitoring, Environmental Sciences, Environmental Studies, Geographic Information Sciences, Geography, Geomorphology, Hydrology, International and Area Studies, Marine Biology, Natural Resource Economics, Nature and Society Relations, Oceanography and Atmospheric Sciences and Meteorology, Other Environmental Sciences, Other Geography, Remote Sensing, Spatial Science, Statistical Methodology, Statistical Models, Sustainability
Low islands face a rising sea at the same time as the reefs and mangroves that shelter them are under stress. I measured both across 5 island groups in 3 ocean basins (Maldives, Lakshadweep, Seychelles, Fiji and the Canary Islands), testing mangroves and coral reefs as separate pathways. Exposure is the share of people (WorldPop 2020) living on land at or below 1 m, on a bare earth elevation [...]
A Transformer-Based Surrogate for Distributed Groundwater Dynamics with Zero-Shot Cross-Basin Transfer and Precipitation-Regime Data Augmentation
Published: 2026-09-05
Subjects: Engineering, Physical Sciences and Mathematics
Large-scale physically based groundwater models generate spatially distributed simulations, but their cost limits the regional datasets available for training artificial-intelligence-based surrogates. Here, we developed and systematically evaluated a groundwater-adapted PredFormer surrogate for regional ParFlow-CLM simulations. The framework uses temporal-first factorized attention, [...]
Competing Psychological Pathways Linking Age and Individual and Collective Pro-Environmental Behavior Intentions: The Role of Conservatism
Published: 2026-09-04
Subjects: Environmental Studies
Promoting pro-environmental behavior (PEB) across the lifespan is critical for achieving an effective response to climate change. This may particularly be important in later life, as older adults hold substantial economic resources and electoral influence, enabling them to shape societal responses to environmental challenges. However, they have also been found to be more likely than younger [...]
Healthcare professionals at the frontline of Climate Change: knowledge, attitudes, and practices
Published: 2026-09-04
Subjects: Public Health
Healthcare professionals (HCPs), as trusted cadre of community, play a crucial role advocating climate action to reduce its impact on health. This study aimed to assess the knowledge, attitudes, practices and perceived responsibilities (KAPP), associated factors, of healthcare providers in Karachi, Pakistan, regarding climate change and its associated health effects. We conducted a [...]
Abundance and Spatial Distribution of Third Generation Cephalosporin Resistant Escherichia coli in Wastewater and impact on the receiving Korle Lagoon, Accra, Ghana
Published: 2026-09-04
Subjects: Microbiology
Antimicrobial resistance in the environment is a major public health threat, particularly in low- and middle-income countries where there is inadequate wastewater treatment infrastructure. Third generation cephalosporin resistant Escherichia coli (3GCR E. coli) are of particular concern as they have clinical significance and may spread associated resistance genes in environment. This study [...]
A multicriteria decision analysis framework for generating baseline virtual weather stations in Zimbabwe
Published: 2026-09-04
Subjects: Oceanography and Atmospheric Sciences and Meteorology
In this study, we generate baseline Virtual Weather Stations (VWS) in locations with minimal atmospheric noise by avoiding two major surface factors known to cause noise in remotely sensed weather observations. The study also proposes an improvement to the spatial coverage of Zimbabwe's weather observation network through the identification of environmentally suitable locations for virtual [...]
Testing the Fluorescence Advantage: Does Solar-Induced Fluorescence Signal Agricultural Drought Earlier than NDVI in Marathwada, India?
Published: 2026-09-04
Subjects: Agriculture, Biodiversity, Ecology and Evolutionary Biology, Environmental Studies, Forest Sciences, Geographic Information Sciences, Geography, Nature and Society Relations, Remote Sensing, Spatial Science
India uses rainfall deficits and vegetation indices such as NDVI to declare drought, and PMFBY crop-insurance payouts depend on these declarations. Solar-Induced Fluorescence (SIF) is linked to photosynthesis, so many expect it to show drought stress earlier than NDVI. I tested this in the eight districts of Marathwada, Maharashtra, over nine Kharif seasons (2015–2023). I compared [...]
Stolen Strata: Brick Kilns and the Loss of Karewa Tableland in Budgam, Kashmir,1993–2025, with a Correction to an Earlier Estimate
Published: 2026-09-04
Subjects: Agriculture, Biodiversity, Earth Sciences, Environmental Sciences, Environmental Studies, Geographic Information Sciences, Geography, Geomorphology, Nature and Society Relations, Other Geography, Remote Sensing, Spatial Science
Karewa tablelands are the flat-topped, scarp-bounded remnants of the old lake and river deposits of the Kashmir Valley. Reporting from Kashmir has said for years that they are being dug away for brick clay and fill, but I did not find a satellite measurement of how much, where and when. This study asks three questions: how much karewa tableland that was vegetated in 2013–2015 is no longer [...]