Preprints
There are 6347 Preprints listed.
A decadal survey of the near-surface seismic velocity response to hydrological variations in Utah, United States
Published: 2024-11-21
Subjects: Environmental Monitoring, Geophysics and Seismology, Hydrology
Ongoing climate change leads to an increase in prolonged drought and severe weather events in the United States, particularly pronounced in semi-arid regions such as the western United States. It could have lasting social and environmental impacts. Continuous monitoring of near-surface hydrological processes and groundwater resources will provide helpful information for effective water resource [...]
Towards centimeter precision SAR-RFID localization
Published: 2024-11-20
Subjects: Engineering, Geomorphology, Physical Sciences and Mathematics
Radio-Frequency Identification (RFID) shows great potential for earth-sciences applications, notably for landslide surface monitoring at a high spatio-temporal resolution with long-term robustness to meteorological events (rain, fog, snow). The ability to localize RFID tags using Unmanned Aerial Vehicles (UAV) in a Synthetic Aperture Radar (SAR) approach, would offer new possibilites for [...]
Oligocene – Miocene Tectono-Stratigraphic Development of the Southern Levant Basin, Eastern Mediterranean
Published: 2024-11-20
Subjects: Geology, Stratigraphy, Tectonics and Structure
The Levant Basin, Eastern Mediterranean, has a complex geological history. The separation of Africa from Arabia, and the collision of the latter with Eurasia during the Oligocene – Miocene had significant implications for the tectono-stratigraphy of the region, as recorded in the thick, siliciclastic-dominated sequence preserved in the Levant Basin. Previous studies mostly focused on either [...]
Granular column collapse: Analysing the effects of gravity levels
Published: 2024-11-20
Subjects: Earth Sciences, Engineering
Creep Deformation and Long-Term Strength of Ice-Rich Permafrost in Northern Alaska
Published: 2024-11-19
Subjects: Engineering
The degradation of permafrost alters deformation and long-term strength, posing challenges to existing and future civil infrastructure in northern Alaska. Long-term strength is a critical parameter in the design of civil projects; yet data on the creep deformation and long-term strength of undisturbed permafrost in northern Alaska remain limited. Soil particle fraction, unfrozen water content, [...]
Constraints from uranium and molybdenum isotope ratios on the origin of enriched mid-ocean ridge basalts
Published: 2024-11-16
Subjects: Physical Sciences and Mathematics
Most mid-ocean ridge basalts (MORB) are depleted in highly incompatible elements relative to the primitive mantle and are termed normal (N)-MORB. Some MORB, erupted at ridge segments distal from mantle hot-spots, are enriched in incompatible elements. The origin of these enriched (E)-MORB is debated, although many studies have proposed that recycled oceanic crust shapes their compositions. [...]
The gendered nature of climate change impacts in the Republic of the Marshall Islands
Published: 2024-11-15
Subjects: Geography
Empirical evidence on the gendered impacts of climate change is limited, particularly in the islands of the Pacific. This paper presents findings from fieldwork in the Republic of Marshall Islands that engaged with 1362 participants from 15 atolls. The data provides four clear findings. First, that men and women’s livelihoods are heavily impacted by climate change, with reduced incomes shifting [...]
Exposure to compound climate hazards transmitted via global agricultural trade networks
Published: 2024-11-15
Subjects: Agriculture, Climate, Environmental Studies, Risk Analysis
Compound climate hazards, such as co-occurring temperature and precipitation extremes, substantially impact people and ecosystems. Internal climate variability combines with the forced global warming response to determine both the magnitude and spatial distribution of these events, and their consequences can propagate from one country to another via many pathways. We examine how exposure to [...]
Vulnerability to climate change: An analysis of its conceptualization in Mexico
Published: 2024-11-15
Subjects: Other Life Sciences
The concept of climate change vulnerability (CCV) has become an angular one for understanding the differential impacts of climate change (CC). It has evolved from multiple disciplines, leading to a diversity of conceptual frameworks. Particularly, in Mexico – where CCV research and practice have increased – such diversity has resulted in a lack of clarity on how to operationalize it, and limited [...]
SiM: Satellite Image Mixed Pixel Deforestation Analysis in Optical Satellite for Land Use Land Cover Application
Published: 2024-11-15
Subjects: Education, Engineering, Life Sciences
Brazil’s deforestation monitoring integrates accuracy and current monitoring for land use and land cover applications. Regular monitoring of deforestation and non-deforestation requires Sentinel-2 multispectral satellite images of several bands at various frequencies, the mix of high- and low-resolution images that make object classification difficult because of the mixed pixel problem. Accuracy [...]
Viewing Lobate Patterns on Mars and Earth as Climate Modulated Fluid-like Instabilities
Published: 2024-11-14
Subjects: Planetary Sciences
Lobate features found on high-latitude slopes on Mars resemble terrestrial cold-climate soil patterns known as solifluction lobes. Whether this provides evidence of freeze thaw processes on Mars or pattern equifinality is up for debate. Guided by recently developed theory for solifluction pattern formation inspired by fluid instabilities, here we compare HiRISE imagery of Martian lobes with a [...]
Current and Future Impacts of Lithium Carbonate from Brines: A Global Regionalized Life Cycle Assessment Model
Published: 2024-11-13
Subjects: Engineering
Lithium (Li) is essential for decarbonization strategies, such as electric vehicles and renewable energy storage, experiencing the largest growth rates among metals required for low-carbon technologies. To meet this demand, the raw materials sector must increase current capacities and develop new ones at untapped deposits. Understanding life cycle impacts is crucial to avoid severe environmental [...]
Flooding, nonlinear dynamics and Jensen’s inequality: Analyzing the damping and amplification of inundation extent with river discharge nonstationarity
Published: 2024-11-13
Subjects: Civil and Environmental Engineering, Earth Sciences, Engineering, Hydrology, Risk Analysis
Performance of a bioreactor using HCC fillers for sewage treatment
Published: 2024-11-12
Subjects: Environmental Sciences
The experiments prepared bio-fillers using corn cobs as raw materials. Heat modification was identified as the optimal method by comparing the physical and chemical properties (roughness, porosity, water immersion stability, and compressive strength) of unmodified, acid modified, alkali modified, and heat modified corn cobs. Subsequently, the heat modification conditions were optimized, and the [...]
Fossil hypercalcified sponges; types, relationships and geological history
Published: 2024-11-12
Subjects: Life Sciences
Hypercalcified sponges are poriferans with a calcareous skeleton secreted on and in the soft tissue. Living examples and fossils of some such sponges in Mesozoic and Cenozoic strata contain sponge spicules and can be classified within modern poriferan groups of the Classes Demospongiae and Calcarea, which are otherwise almost entirely soft-bodied. However, other fossil forms, largely Palaeozoic [...]