Preprints
There are 7999 Preprints listed.
An interview with ChatGPT: discussing artificial intelligence in teaching, research, and practice
Published: 2023-02-15
Subjects: Engineering Education, Geology, Geotechnical Engineering, Higher Education
This paper examines the potential of using the AI language model ChatGPT in the field of engineering geology. The authors, an engineering geologist and a university teacher, conduct a series of conversations with ChatGPT to explore its capabilities in assisting with research and learning, and its potential implications for scientific publications. The paper also considers the future of human-AI [...]
Evidence of Early Supershear Transition in the Feb 6th 2023 Mw 7.8 Kahramanmaraş Turkey Earthquake From Near-Field Records
Published: 2023-02-15
Subjects: Aerospace Engineering, Civil and Environmental Engineering, Earth Sciences, Engineering, Mechanical Engineering, Physical Sciences and Mathematics
The Mw7.8 Kahramanmaraş Earthquake was larger and more destructive than what had been expected for the tectonic setting in Southeastern Turkey. By using near-field records we provide evidence for early supershear transition on the splay fault that hosted the nucleation and early propagation of the first rupture that eventually transitioned into the East Anatolian fault. We also find, for the [...]
Temporal evolution of under-ice meltwater layers and false bottoms and their impact on summer Arctic sea ice mass balance
Published: 2023-02-16
Subjects: Earth Sciences, Glaciology, Oceanography and Atmospheric Sciences and Meteorology, Physical Sciences and Mathematics
Low-salinity meltwater from Arctic sea ice and its snow cover accumulates and creates under-ice meltwater layers below sea ice. These meltwater layers can result in the formation of new ice layers, or false bottoms, at the interface of this low-salinity meltwater and colder seawater. As part of the Multidisciplinary drifting Observatory for the Study of the Arctic Climate (MOSAiC), we used a [...]
Performance and sensitivity of column-wise and pixel-wise methane retrievals for imaging spectrometers
Published: 2023-02-16
Subjects: Atmospheric Sciences
Airborne imaging spectrometers are increasingly used to map methane (CH4) at high spatial resolution (e.g., 3-5 m). This study presents an analysis of two common approaches to retrieve methane from imaging spectrometer data. The approaches are (1) the columnwise matched filter (CMF), and (2) the physics-based Iterative Maximum A Posteriori – Differential Optical Absorption Spectroscopy [...]
Wavelet-based wavenumber spectral estimate of eddy kinetic energy: Application to the North Atlantic
Published: 2023-02-16
Subjects: Physical Sciences and Mathematics
An ensemble of eddy-rich North Atlantic simulations is analyzed, providing estimates of eddy kinetic energy (EKE) wavenumber spectra and spectral budgets below the mixed layer where energy input from surface convection is negligible. A wavelet transform technique is used to estimate a spatially localized `pseudo-Fourier' spectrum, permitting comparisons to be made between spectra at different [...]
Protecting fish and farms: incentivising adoption of modern fish-protection screens for water pumps and gravity-fed diversions in Australia
Published: 2023-02-17
Subjects: Agriculture
Modern fish-protection screens offer significant potential benefits for Australia. The Commonwealth and New South Wales (NSW) governments have invested over $30m to incentivise early adoption by water users. However, successful adoption requires an understanding of the motivations and abilities of water users, and strategies to overcome key barriers to adoption. Four practices have been used in [...]
Quantifying fire-specific smoke severity
Published: 2023-02-17
Subjects: Earth Sciences, Environmental Health and Protection, Environmental Monitoring, Environmental Sciences, Physical Sciences and Mathematics
Rapidly changing wildfire regimes across the Western US has driven more frequent and severe wildfires, resulting in wide-ranging societal threats from the wildfires themselves and the smoke that they generate. However, common measures of fire severity focus on what is burned and do not account for the societal impacts of the smoke generated from each fire. We combine satellite-derived fire scars, [...]
Transformation of dense shelf water cascade into turbidity currents: insights from high-resolution geophysical datasets
Published: 2023-02-17
Subjects: Earth Sciences, Geomorphology, Sedimentology
Dense shelf water cascade (DSWC) is a common oceanographic phenomenon on many continental shelves. Previous studies indicate that the DSWC could shape seabed physiography and carry seawater, sediment, and organic carbon a long distance from the continental shelf to the basin floor. However, it remains enigmatic how these DSWC’s interact with seabed geomorphology and travel long distances from the [...]
False positives are common in single-station template matching
Published: 2023-02-17
Subjects: Earth Sciences, Geophysics and Seismology, Planetary Geophysics and Seismology, Planetary Sciences
Template matching has become a cornerstone technique of observational seismology. By taking known events, and scanning them against a continuous record, new events smaller than the signal-to-noise ratio can be found, substantially improving the magnitude of completeness of earthquake catalogues. Template matching is normally used in an array setting, however as we move into the era of planetary [...]
Did hydroclimate conditions contribute to the political dynamics of Majapahit? A preliminary analysis
Published: 2023-02-21
Subjects: Atmospheric Sciences, Climate, Earth Sciences, Environmental Studies, Geography, Human Geography, Nature and Society Relations, Physical and Environmental Geography, Physical Sciences and Mathematics, Social and Behavioral Sciences
Majapahit was the largest Hindu-Buddhist empire that ruled the Indonesian archipelago from the late 13th to mid-16th centuries CE. Only now there is still a lot of history surrounding the Majapahit era that has yet to be revealed. One is about how environmental factors influenced the political dynamics at that time. This study tries to discuss the influence of hydroclimate regimes using the Paleo [...]
Porosity evolution of mafic crystal mush during reactive flow
Published: 2023-02-19
Subjects: Physical Sciences and Mathematics
The emergence of the “mush paradigm” has raised several questions for conventional models of magma storage and extraction: how are melts extracted to form eruptible liquid-rich domains? What mechanism controls melt transport in mush-rich systems? Recently, reactive flow has been proposed as a major contributing factor in the formation of high porosity, melt-rich regions. Yet, owing to the absence [...]
Investigation of Capillary Pressure Effects on Well Cleanup after Hydraulic Fracturing
Published: 2023-02-19
Subjects: Education, Engineering
Nowadays hydraulic fracturing is becoming the most popular practice for low permeability reservoirs. While in some cases fractured wells show superior productivity than non-fractured wells, in other cases the effective fracture length which is used to channel gas and oil from reservoir to wellbore, is much shorter than the propped fracture length, thus leading to a lower-than-expected production [...]
Understanding Microplastics Discourse Through Social Sensing: Insights from Geotagged Social Media
Published: 2026-05-06
Subjects: Environmental Studies
Microplastics have emerged as a growing global environmental and public health concern due to their widespread presence and increasing potential for human exposure through food, water, and air. Recent scientific evidence and expanding media coverage have heightened public awareness and debate surrounding their ecological and health impacts. However, a systematic understanding of how public [...]
Optimizing Sowing Window for Mungbean and its Adaptation Option for the South-Central Zone of Bangladesh in Future Climate Change Scenario Using APSIM Model
Published: 2023-02-20
Subjects: Higher Education
The Agricultural Production Systems Simulator (APSIM) model was calibrated and validated and used to optimize the sowing window for mungbean (var. BARI Mung-6) at Gazipur, the South-central climatic zone of Bangladesh. Simulation was also done with elevated temperatures (1, 2 and 3 ºC) to find out the adaptation option against future temperature stress situations. The model was run for eight [...]
Eclogites and basement terrane tectonics in the northern arm of the Grenville orogen, NW Scotland
Published: 2023-02-22
Subjects: Earth Sciences
The presence of eclogites within continental crust is a key indicator of collisional orogenesis and they have been used worldwide to assist in the delineation of ancient collisional sutures. Eclogites within the Eastern Glenelg basement inlier of the Northern Highland Terrane (NHT) have been re-dated in order to provide more accurate constraints on the timing of collision within the northern arm [...]