Preprints

There are 4741 Preprints listed.

Wind and rain compound with tides to cause frequent and unexpected coastal floods

Thomas Thelen, Katherine A Anarde, Joel Casey Dietrich, et al.

Published: 2024-06-12
Subjects: Civil and Environmental Engineering

With sea-level rise, flooding in coastal communities is now common during the highest high tides. Floods also occur at normal tidal levels when rainfall overcomes stormwater infrastructure that is partially submerged by tides. Data describing this type of compound flooding is scarce and, therefore, it is unclear how often these floods occur and whether there are other non-tidal factors that [...]

Implementing machine learning to establish a relationship between coal ash spread and lined vs. unlined sites using publicly available data

May Ming, Sutharsika Kumar Kalaiselvi

Published: 2024-06-12
Subjects: Physical Sciences and Mathematics

The fuel combustion process within coal power plants causes a significant amount of waste, called coal ash, often stored in slush basins. Due to low maintenance and lack of proper regulations, coal ash ponds have a high tendency to contaminate nearby groundwater sources. Without a simple way to ascertain whether the drinking water and soil near a private residential area is contaminated, citizens [...]

Implementation of the Peruvian Earthquake Early Warning System

Pablo Lara, Hernando Tavera, Quentin Bletery, et al.

Published: 2024-06-12
Subjects: Artificial Intelligence and Robotics, Geophysics and Seismology

We present the implementation and testing of the seismological components of the Peruvian Earthquake Early Warning System (Sistema de Alerta Sísmica Peruano, SASPe). SASPe is designed to send alert messages to areas located within a given distance from the epicenter of large (magnitude ≥ 6.0) subduction earthquakes, with a first alert based on data available 3 seconds after the arrival [...]

Exploring coastal climate adaptation through storylines: Insights from Cyclone Idai in Beira, Mozambique

Henrique Moreno Dumont Goulart, Karin van der Wiel, Bart van den Hurk, et al.

Published: 2024-06-11
Subjects: Atmospheric Sciences, Climate, Earth Sciences, Environmental Engineering, Environmental Sciences, Hydraulic Engineering, Hydrology, Meteorology, Natural Resources Management and Policy, Water Resource Management

Coastal settlements, facing increasing flood risk from Tropical Cyclones (TCs) under climate change, need local and detailed climate information for effective adaptation. Analysis of historical events and their impacts provides such information. This study uses storylines to evaluate adaptation strategies, focusing on Cyclone Idai’s impact on Beira, Mozambique, under different climate [...]

Calculation of Individual and Product Sustainability under IMACS

Vincent Dert

Published: 2024-06-10
Subjects: Physical Sciences and Mathematics

The methods described allow calculation of individual and product sustainabilities and of human conditions for all products, services and individual labor, in a globally standardized way. Product and service sustainabilities reflect natural resource use, environmental damage done and harmful or inhumane labor and living conditions that existed, to make, transport and sell the product or service. [...]

Providing Conservation as “Title-To-Conservation” Under IMACS

Vincent Dert

Published: 2024-06-10
Subjects: Physical Sciences and Mathematics

In order to prevent the devastating effects of global warming on biodiversity and in turn on humanity, CO2 emissions and other forms of environmental damage must be all but eliminated, while environmental protection and restoration must be applied on increasingly larger scales. The methods described here are used under the IMAC system and create both the vehicles and the incentives to provide [...]

Calculation Of Excess Impact Deduction for Products and Services under IMACS

Vincent Dert

Published: 2024-06-10
Subjects: Physical Sciences and Mathematics

The first universally standardized and first-principal-based system of methods was developed to calculate the environmental (E) and human condition (H) impacts embodied by products and services where EH-impacts originating from employee labor are added to other production process EH-impacts. While the addition of employee labor EH-impacts is essential to correctly calculate the EH-impacts of [...]

Calculation of Individual Sustainable Absorption for IMACS

Vincent Dert

Published: 2024-06-10
Subjects: Physical Sciences and Mathematics

This article describes the first universally standardized and first-principals-based method to calculate the amounts of environmental and human resources an individual can use sustainably. The sustainable available resource amount calculated for each resource type used, must be deducted from the individual’s resource consumption to calculate the net resource use of the individual’s labor output. [...]

Impact Measurement and Application of Conservation System (IMACS)

Vincent Dert

Published: 2024-06-10
Subjects: Physical Sciences and Mathematics

This article describes the first “first principals’ based” system of methods for the calculation of environmental (E) and human condition (H) impacts and sustainabilities for all products, services and individuals as a set of universally standardized methods, earlier published as a patent application (1). The overall system allows buyers to select more sustainable products and services, and [...]

Marketing Aspects for IMACS

Vincent Dert

Published: 2024-06-10
Subjects: Physical Sciences and Mathematics

A series of papers was pre-printed explaining the prior published patent application for a first-principals-based sustainability measurement system. In addition to measuring environmental and human condition impacts, the Impact Measurement And Conservation System (IMACS) automatically applies conservation to participating products sold by participating retailers and purchased by participating [...]

Majority of potable water microplastics are smaller than the 20 µm EU methodology limit for consumable water quality

Oskar Hagelskjær, Frederik Hagelskjær, Henar Margenat, et al.

Published: 2024-06-08
Subjects: Medicine and Health Sciences, Physical Sciences and Mathematics

Microplastic (MP) content in nutrition including potable water is unregulated, although MP concentrations in bottled water can diverge by several orders of magnitude. The EU Directive 2020/2184 on consumable water quality recently proposed methodological approaches to the detection of MPs in potable water in the size range of 20-5000 µm. However, small MPs in the 1-20 µm range are far more likely [...]

Theoretical infrared signature of OH defects in Fe3+, Cr3+ and Al3+-doped enstatite

Etienne Balan, Jannick Ingrin

Published: 2024-06-08
Subjects: Mineral Physics

The infrared spectroscopic properties of selected defects involving one proton and one nearby M3+ (M=Al, Cr, Fe) substitution in orthoenstatite are investigated by first- principles calculations. Based on the theoretical results, the absorption bands experimentally observed on synthetic samples with high crystalline quality and low doping levels can be assigned to specific defect configurations. [...]

Taxon-specific hydrogen isotope signals in cultures and mesocosms facilitate ecosystem and hydroclimate reconstruction

Nemiah Ladd, Daniel Nelson, Blake Matthews, et al.

Published: 2024-06-07
Subjects: Biogeochemistry

   Phytoplankton play a key role in biogeochemical cycles, impacting atmospheric and aquatic chemistry, food webs, and water quality. However, it remains challenging to reconstruct changes in algal community composition throughout the geologic past, as existing proxies are suitable only for a subset of taxa and/or influenced by degradation. Here, we investigate if compound-specific hydrogen [...]

Investigating the Dynamic History of a Promontory Ice Rise using Radar Data

M. Reza Ershadi, Reinhard Drews, Jean-Louis TISON, et al.

Published: 2024-06-07
Subjects: Geophysics and Seismology, Glaciology

Ice rises hold valuable records revealing the ice dynamics and climatic history of Antarctic coastal areas from the Last Glacial Maximum to today. This history is often reconstructed from isochrone radar stratigraphy and simulations focusing on Raymond arch evolution beneath the divides. However, this relies on complex ice-flow models where many parameters are unconstrained by observations. Our [...]

Multicomponent and multiphase CO2-brine system in microfluidic characterised in situ by Raman spectroscopy

Michał Zając, Stanisław Nagy, Szymon Kuczyński, et al.

Published: 2024-06-07
Subjects: Chemical Engineering, Complex Fluids, Mining Engineering, Petroleum Engineering

Deep-saline aquifers could be instrumental in the geological storage of carbon dioxide due to their relatively good reservoir properties, high volume, and prevalence. However, there are a few difficulties which should be overcome to obtain effective stores in such reservoirs. Most problems are related to formation damage caused by salt precipitation. Due to the complexity of such systems, it is [...]

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