Preprints
There are 5978 Preprints listed.
Robust networks of rainfall extremes emerge despite fragile ocean monsoon causality under Internal variability
Published: 2025-08-02
Subjects: Atmospheric Sciences, Climate, Meteorology, Oceanography
Climate ready multi sectoral risk management relies on understanding not only where extreme rainfall occurs but also how such events synchronize across regions and interact with internal climate modes. The stability of synchronized rainfall networks and remote climate forcings under internal climate variability (ICV), especially when aggregating ensemble simulations for statistical robustness, [...]
Spaceborne mineral mapping reduces dust’s shortwave radiative impact uncertainty
Published: 2025-08-02
Subjects: Physical Sciences and Mathematics
Mineral dust impacts climate through complex interactions with radiation, which remain poorly quantified due to uncertainties in the amount of light-absorbing iron oxides within dust particles. NASA’s EMIT imaging spectrometer, now delivering high-resolution soil mineralogy from the International Space Station, provides the first observational basis to address this gap at a global scale. Using [...]
Real-time GIS for Programming and Geocomputation
Published: 2025-08-02
Subjects: Engineering
Streaming data generated continuously from sensor networks, mobile devices, social media platforms and other edge devices have posed significant challenges to existing computing platforms for achieving both high throughput and low latency data processing in addition to scalable computing. This paper introduces a real-time computing and programming platform for time-critical GIS (Geographic [...]
Slow Slip Events in Mexico: A Historical Perspective
Published: 2025-08-01
Subjects: Physical Sciences and Mathematics
This paper introduces a historical catalogue of slow slip events (SSE) for the Mexican subduction zone. The catalogue incorporates all 25 SSEs recorded since they were discovered in 1997. The inversion of GPS data for ten SSEs in Guerrero and five in Oaxaca reveals a clear slow slip segmentation along the Middle America Trench, with slip maxima between 30 and 40 km depth in both regions. SSEs in [...]
Classifying Climate Benefits and Addressing Trade-offs of Timber Use in Buildings for Voluntary Carbon Markets and the EU Carbon Removal Certification Framework
Published: 2025-07-31
Subjects: Environmental Sciences, Materials Science and Engineering, Other Engineering, Planetary Sciences, Statistics and Probability
Timber use in construction is increasingly promoted as a climate mitigation option due to its potential for carbon storage and material substitution. Current classifications often conflate storage with carbon removal, risking misalignment with voluntary carbon market integrity frameworks and the EU Carbon Removal Certification Framework. This paper evaluates the scientific and methodological [...]
The 1908 Tunguska event and electromagnetic phenomena
Published: 2025-07-31
Subjects: Education, Physical Sciences and Mathematics
This paper is a continuation of a series of works, devoted to various aspects of the 1908 Tunguska event. In this paper its author would like to draw attention to the arguments about the manifestations of electromagnetic phenomena in the 1908 Tunguska event. A review is provided of some data supporting the idea about the manifestation of electromagnetic phenomena. Although there is no direct [...]
“It is a sham process with participation.” Ten forms of citizen participation for sustainable development in the Norwegian Arctic
Published: 2025-07-31
Subjects: Environmental Studies
This study examined practices of citizen participation at the municipal level and the role of sustainability in this context in various municipalities in Nordland, Finnmark, and Troms in the Norwegian Arctic. Analysis of transcripts from 75 interviews identified 10 forms of citizen participation in planning processes and meetings aimed at discussing local challenges and possible solutions. Only [...]
The Indispensable Role of Weather Data in Consumer Spending Prediction: A Robust Machine Learning Assessment
Published: 2025-07-31
Subjects: Climate, Environmental Indicators and Impact Assessment, Environmental Monitoring, Meteorology
Accurate forecasting of daily consumer spending is crucial for strategic decision-making in the retail sector, yet the dynamic influence of weather is often underestimated or insufficiently integrated into predictive models. This study presents a comprehensive evaluation of incorporating both historical and 7-day weather forecast data on predicting consumer spending amounts across three diverse [...]
Regionally divergent drivers behind transgressions of the freshwater change planetary boundary
Published: 2025-07-31
Subjects: Hydrology, Physical Sciences and Mathematics
Human-driven freshwater change contributes to elevated Earth system risks. Here, we advance the understanding of drivers behind the transgression of the planetary boundary for freshwater change (PB-FW), based on historical (1901–2019) streamflow (blue water) and soil moisture (green water) simulations from a large ensemble of global hydrological models. Since the former estimate ending in 2005, [...]
Exploration of Gold, Copper, Magnetite, Hematite, Manganese, Magnesium, Chromite, Antimony, Bauxite, Industrial soils, Nickel, Cobalt, Lead, Lithium minerals using Landsat8 satellite
Published: 2025-07-31
Subjects: Environmental Education, Environmental Health and Protection, Environmental Monitoring, Geophysics and Seismology, Mineral Physics, Natural Resource Economics, Natural Resources and Conservation, Natural Resources Management and Policy, Other Earth Sciences, Other Environmental Sciences
In this study, we provided an accurate and complete method for exploration and analysis of Gold, Copper, Magnetite, Hematite, Manganese, Magnesium, Chromite, Antimony, Bauxite, Industrial soils, Nickel, Cobalt, Lead and Lithium minerals in the desired area. Mineral exploration can be done using the seven bands from Landsat8 satellite images, through combination of different maps, a specific color [...]
Extreme Environments of Latin America: Natural Laboratories for Astrobiology
Published: 2025-07-31
Subjects: Life Sciences
Extreme environments are places where sustaining life is considered challenging by human standarts due to harmful environmental conditions. In the last decades, these kinds of environments have awakened the interest of planetary scientists due to their similar conditions to extraplanetary bodies. Most of the research done in extreme environments has been conducted in the North American and [...]
Paleoseismology of the Zougahana fault, northern Aso outer rim, and its role in the tectonics of northern Kyushu
Published: 2025-07-31
Subjects: Geomorphology, Tectonics and Structure
The Kumamoto earthquake (Mj 6.5, Mj 7.3) occurred on 14 and 16 April 2016, with the epicenter on the Futagawa and Hinagu faults, central Kyushu Island, southwest Japan. Differential interferometric synthetic aperture radar analyses detected many phase discontinuities in the source region. Phase discontinuities and ruptures were also confirmed at the Zougahana fault on the northeastern rim of Aso [...]
Future Sea Ice-Ocean and Biological Productivity Changes in the North Water Polynya Region under Policy Relevant Warming Levels
Published: 2025-07-30
Subjects: Climate, Oceanography, Oceanography and Atmospheric Sciences and Meteorology, Physical Sciences and Mathematics
The North Water Polynya (NOW) is one of the most productive biological regions in the Arctic with high importance to Inuit and local communities of Nunavut and Greenland. To provide insights into the potential changes of this region as global temperatures rise, we investigated the sea ice, and physical and biological oceanic responses of the NOW to low (2 °C) and high (3.5 °C) levels of warming [...]
Assessing Indoor Versus Outdoor PM2.5 Concentrations During the 2025 Los Angeles Fires Using the PurpleAir Sensor Network
Published: 2025-07-30
Subjects: Engineering
In January 2025, a series of fast-moving wildland-urban-interface (WUI) fires swept through the Los Angeles (LA) metropolitan area, causing severe air pollution. While the impacts of WUI fires on outdoor air quality have been extensively studied, indoor exposure remains less understood, despite most people sheltering indoors during WUI fires. This study investigates the spatial and temporal [...]
Oxic methane production in shallow productive lakes: linking field and in vitro experimental evidence
Published: 2025-07-30
Subjects: Microbiology, Terrestrial and Aquatic Ecology
Whereas the occurrence of oxic methane (CH₄) production (OMP) in the oxygenated water column of lakes is widely accepted, its mechanisms, isotopic signature, and contribution to total CH₄ emissions remain uncertain. Evidence suggests that phytoplankton produces CH₄, but it is unclear to what extent this pathway contributes to ecosystem OMP rates. Shallow lakes are often productive and feature [...]