Preprints
There are 4718 Preprints listed.
The complex role of local governance in facilitating property buyouts and managed retreat in response to climate hazards
Published: 2023-05-04
Subjects: Environmental Studies
Managed retreat is an increasingly important management option for responding to the localized impacts of climate change and poses a complex governance challenge. Floodplain property buyouts represent the largest form of managed retreat currently underway in the U.S. and have been broadly studied as disaster response policy using large national datasets. Research on the local governance [...]
Spatial optimality and temporal variability in Australia's wind resource
Published: 2023-05-04
Subjects: Climate, Natural Resources Management and Policy
To meet electricity demand using renewable energy supply, wind farm locations should be chosen to minimise variability in output, especially at night when solar photovoltaics cannot be relied upon. Wind farm location must balance grid-proximity, resource potential, and wind correlation between farms. A top-down planning approach for farm locations can mitigate demand unmet by wind supply, yet the [...]
Tracing isotope precipitation patterns across Mexico
Published: 2023-05-04
Subjects: Earth Sciences, Environmental Sciences
Mexico encompasses a large spectrum of landscapes with topographic, geographic, and climatic factors interacting in a complex ecohydrological setting. For decades, isotope hydrogeological tools have been applied in Mexico using short-term or seasonal local meteoric water lines as valid input functions. Yet, a systematic evaluation of meteoric isotope characteristics is still lacking. Here we [...]
Agrivoltaic systems potentials in Sweden: a geospatial-assisted multi-criteria analysis
Published: 2023-05-04
Subjects: Power and Energy
Agrivoltaic systems represent an intelligent solution combining electricity production from solar photovoltaic technology with agricultural production and avoiding land use conflicts. Geographic Information System technologies can support the implementation and spread of agrivoltaic systems by identifying the most suitable areas using useful spatially explicit information concerning [...]
Geophysical and Geochemical Constraints on Magma Storage Depths along the Cascade Arc: Knowns and Unknowns
Published: 2023-05-03
Subjects: Earth Sciences, Geology, Physical Sciences and Mathematics, Volcanology
The iconic volcanoes of the Cascade arc stretch from Lassen Volcanic Center in northern California, through Oregon and Washington, to the Garibaldi Volcanic Belt in British Columbia. Recent studies have reviewed differences in the distribution and eruptive volumes of vents, as well as variations in geochemical compositions and heat flux along strike (amongst other characteristics). We investigate [...]
Lateral Heterogeneity Analysis Using Multiwell ZVSP Unsupervised Machine Learning Classification
Published: 2023-05-03
Subjects: Geophysics and Seismology
In 3D and 2D surface seismic interpretation, seismic waveform shapes and attributes can identify facies and reservoir parameters laterally with more details than traditional amplitude mapping. Herein, a method on 1D zero offset VSP (ZVSP) data was adapted, giving a unique perspective of lateral heterogeneity analysis using VSP seismic waveform shapes and attributes. The downgoing wavefield of VSP [...]
Permafrost extent sets drainage density in the Arctic
Published: 2023-05-03
Subjects: Geomorphology
Amplified warming of high latitudes and rapid thaw of frozen ground threatens permafrost carbon stocks. The presence of permafrost modulates water infiltration and flow, as well as sediment transport, on soil-mantled slopes, influencing the balance of advective fluvial processes to diffusive processes on hillslopes in ways that are different from temperate settings. These processes that shape [...]
Dynamics of episodic supershear in the 2023 M7.8 Kahramanmaraş/Pazarcik Earthquake, revealed by near-field records and computational modeling
Published: 2023-05-03
Subjects: Engineering, Physical Sciences and Mathematics
The 2023 M7.8 Kahramanmaraş/Pazarcik earthquake was larger and more destructive than what had been expected. Here we analyzed near-field seismic records and developed a dynamic rupture model that reconciles different currently conflicting inversion results and reveals spatially non-uniform propagation speeds in this earthquake, with predominantly supershear speeds observed along the Narli fault [...]
Soil pore water evaporation and temperature influences on clay mineral paleothermometry
Published: 2023-05-02
Subjects: Earth Sciences, Physical Sciences and Mathematics
Clay mineral isotope paleothermometry is fundamental to understanding Earth's climate system and landscape evolution. Status quo methods, however, assume constant factors, such as temperature and water isotopic compositions, and ignore seasonality, soil water evaporation and depth dependent temperature changes. We propose first-order modifications to address these factors and test them in a [...]
Bioavailable Sr and Pb isotope ratios of archaeological cattle bone from coastal India
Published: 2023-04-28
Subjects: Biogeochemistry, Geochemistry
We present the first measurement of bioavailable strontium (87Sr/86Sr) and lead (206Pb/204Pb, 207Pb/204Pb, and 208Pb/204Pb) isotope ratios from five cattle bones and one soil sample from Erenda, a chalcolithic site in coastal east India. Bioavailable 87Sr/86Sr of bones differ from that of the soil. A similar Pb isotope ratio of bones to the soil indicates an insignificant diagenesis and local [...]
Linear analysis of ice-shelf topography response to basal melting and freezing
Published: 2023-04-28
Subjects: Applied Mathematics, Dynamic Systems, Earth Sciences, Fluid Dynamics, Glaciology, Physical Sciences and Mathematics, Physics
Floating ice shelves in Antarctica and Greenland limit land-ice contributions to sea level rise by resisting the flow of grounded ice. Melting at the surface and base of ice shelves can lead to destabilisation by promoting thinning and fracturing. Basal melting often results in channelised features that manifest as surface topography due to buoyancy. The assumption of hydrostatic flotation [...]
How particle shape affects granular segregation in industrial and geophysical flows
Published: 2023-04-28
Subjects: Engineering, Physical Sciences and Mathematics
Industrial and environmental granular flows commonly exhibit a phenomenon known as ``granular segregation," in which grains separate according to physical characteristics (size, shape, density), interfering with industrial applications (cement mixing, medicine and food production) and fundamentally altering the behavior of geophysical flows (landslides, debris flows, pyroclastic flows, [...]
Assessing multi-hazard susceptibility to cryospheric hazards: lesson learnt from an Alaskan example
Published: 2023-04-28
Subjects: Applied Statistics, Geomorphology, Glaciology, Statistical Models
Classifying a given landscape on the basis of its susceptibility to surface processes is a standard procedure in low to mid-latitudes. Conversely, these procedures have hardly been explored in periglacial regions, primarily because of the limited presence of human settlements and, therefore, the little need for risk assessment. However, global warming is radically changing this situation and [...]
APWP-online.org: a global reference database and open-source tools for calculating apparent polar wander paths and relative paleomagnetic displacements
Published: 2023-04-28
Subjects: Physical Sciences and Mathematics
Paleomagnetism provides a quantitative tool for estimating paleogeographic displacements of rock units relative to the Earth’s spin axis and is widely used to determine relative tectonic displacements (vertical-axis rotations and paleolatitudinal motions). These relative displacements are commonly determined by comparing a study-mean paleomagnetic pole with a reference pole provided by an [...]
Rupture phase in near-fault records of the 2023 Turkey Mw 7.8 earthquake
Published: 2023-04-28
Subjects: Physical Sciences and Mathematics
Understanding and deciphering wiggles especially coherent phases from seismograms have been a long endeavor to understand the earth structure and earthquake source. However, coherent phases directly associated with earthquake rupture propagation have not been available due to the lack of continuous near-fault observations. Here we report the rupture phase as large velocity pulses during the 2023 [...]