Preprints

Filtering by Subject: Environmental Sciences

Advecting Superspecies: Efficiently Modeling Transport of Organic Aerosol with a Mass-Conserving Dimensionality Reduction Method

Patrick Obin Sturm, Astrid Manders, Ruud Janssen, et al.

Published: 2022-06-26
Subjects: Atmospheric Sciences, Climate, Earth Sciences, Engineering, Environmental Chemistry, Environmental Engineering, Environmental Sciences, Other Oceanography and Atmospheric Sciences and Meteorology, Physical Sciences and Mathematics

The chemical transport model LOTOS-EUROS uses a volatility basis set (VBS) approach to represent the formation of secondary organic aerosol (SOA) in the atmosphere. Inclusion of the VBS approximately doubles the dimensionality of LOTOS-EUROS and slows computation of the advection operator by a factor of two. This complexity limits SOA representation in operational forecasts. We develop a [...]

Bioenergy with or without carbon dioxide removal: influence of functional unit choice and parameter variability

Lisa Zakrisson, Elias Sebastian Azzi, Cecilia Sundberg

Published: 2022-06-21
Subjects: Environmental Indicators and Impact Assessment, Environmental Sciences, Physical Sciences and Mathematics

PURPOSE. Bioenergy with carbon dioxide removal (CDR) is increasingly presented as an efficient way to mitigate climate change. This study set out to determine under which circumstances and methodological choices CDR bioenergy systems are preferable over a reference bioenergy system from a climate change mitigation perspective. In addition, the CDR systems investigated were compared to each [...]

High resolution assessment of coal mining methane emissions by satellite in Shanxi, China

Shushi Peng, Clément Giron, Gang Liu, et al.

Published: 2022-06-17
Subjects: Earth Sciences, Environmental Sciences

Accurate assessment of coal mine methane (CMM) emissions is a prerequisite for defining baselines and assessing the effectiveness of mitigation measures. Such an endeavor is jeopardized however by large uncertainties in current CMM estimates. Here, we assimilated images of methane column atmospheric mixing ratios observed by the TROPOMI space borne instrument in a high-resolution regional [...]

The historical impact of anthropogenic air-borne sulphur on the Pleistocene rock art of Sulawesi

Michael Gagan, Halmar Halide, Raden Permana, et al.

Published: 2022-05-31
Subjects: Earth Sciences, Environmental Indicators and Impact Assessment, Environmental Sciences, Geochemistry, Natural Resources and Conservation

The Maros-Pangkep karst in southwest Sulawesi, Indonesia, contains some of the world’s oldest rock art. However, the Pleistocene images survive only as weathered patches of pigment on exfoliated limestone surfaces. Salt efflorescence underneath the case-hardened limestone substrate causes spall-flaking, and it has been proposed that the loss of artwork has accelerated over recent decades. Here, [...]

Paleoclimate controls on lithium enrichment in Great Basin Pliocene-Pleistocene lacustrine clays

Catherine A Gagnon, Kristina Butler, Elizabeth Gaviria, et al.

Published: 2022-05-29
Subjects: Climate, Earth Sciences, Environmental Sciences, Geochemistry, Geology, Natural Resources and Conservation, Other Environmental Sciences, Sedimentology

Terminal lakes are important archives of continental hydroclimate and in some cases contain important economic resources. Here we present an ~3.6 Myr lacustrine carbonate carbon and oxygen stable isotope record from a Great Basin continental drill core. We pair these measurements with bulk lithium concentrations to reveal a relationship between past climate and lithium enrichment in authigenic [...]

Retrieving Chl-a and total suspended solids in in-land waters using EnMAP simulated data

Mohammadmehdi Saberioon, Vahid Khosravi, Jakub Brom, et al.

Published: 2022-05-27
Subjects: Earth Sciences, Environmental Monitoring, Environmental Sciences

The Environmental Mapping and analysis program (EnMAP) is a new Earth observation satellite which will use imaging spectroscopy to obtain a diagnostic characterisation of the Earth's surface and record changes. Since we hypothesis that imaging spectroscopy can significantly improve the accuracy of predicting and assessing water quality traits of small in-land waters, our study investigates the [...]

Centering Equity in the Nation's Weather, Water and Climate Services

Aradhna Tripati, Marshall Shepherd, Vernon Morris, et al.

Published: 2022-05-19
Subjects: Environmental Sciences, Environmental Studies, Physical Sciences and Mathematics, Social and Behavioral Sciences

Water, weather, and climate affect everyone. However, their impacts on various communities can be very different based on who has access to essential services and environmental knowledge. At the same time, structural discrimination, including racism and other forms of privileging and exclusion, affects people's lives and health, with ripples across all sectors of society. In the United States, [...]

A Generalized Natural Hazard Risk Modelling Framework for Infrastructure Failure Cascades

Evelyn Mühlhofer, Elco E. Koks, Chahan M. Kropf, et al.

Published: 2022-05-19
Subjects: Civil and Environmental Engineering, Environmental Sciences, Risk Analysis

Critical infrastructures are more exposed than ever to natural hazards in a chaning climate. To understand and manage risk, failure cascades across large, real-world infrastructure networks, caused by real-world hazards, and their impact on people, must be captured. Bridging established methods in both infrastructure and risk modelling communities, we develop an open-source modelling framework [...]

Defining renewable groundwater use to improve groundwater management

Mark Olaf Cuthbert, Tom Gleeson, Grant Ferguson, et al.

Published: 2022-05-19
Subjects: Civil and Environmental Engineering, Earth Sciences, Engineering, Environmental Sciences, Physical Sciences and Mathematics

Groundwater systems are commonly but variously defined as renewable or non-renewable based on natural fluxes of recharge or on estimates of aquifer storage and groundwater residence time. However, the principle of capture challenges simple definitions: groundwater pumping can alter the rates of groundwater recharge and/or discharge over a characteristic groundwater response time related to the [...]

Sorption vs Adsorption: the words they are a-changin', not the phenomena

Olivier Pourret, Jean-Claude Bollinger, Andrew Hursthouse, et al.

Published: 2022-05-17
Subjects: Chemistry, Earth Sciences, Environmental Sciences

In this discussion, we highlight that the terms sorption and adsorption are often confused and misused in many articles. Even if one thought their formal definition is well known, this does not appear to be the case. We recommend encouragement to adopt the word adsorption only when fully supported by appropriate data and using the sorption terminology when it is more speculative, typically in [...]

Quantifying excess heavy metal concentrations in drainage basins using conservative mixing modelling

Jonas Alexander Eschenfelder, Alex G. Lipp, Gareth G Roberts

Published: 2022-05-13
Subjects: Earth Sciences, Environmental Sciences, Geochemistry, Geomorphology, Physical Sciences and Mathematics, Sustainability, Water Resource Management

High concentrations of heavy metals and other pollutants in river sediments can have detrimental effects on the health of ecosystems and humans. As such, determining the composition of river sediments throughout drainage basins is an essential aspect of environmental monitoring. Well characterised natural baseline concentrations are important information with which observations can be compared [...]

Global dynamics of the offshore wind energy sector monitored with Sentinel-1: Turbine count, installed capacity and site specifications

Thorsten Hoeser, Claudia Kuenzer

Published: 2022-04-26
Subjects: Applied Statistics, Earth Sciences, Environmental Sciences, Natural Resource Economics, Natural Resources Management and Policy, Oil, Gas, and Energy, Other Earth Sciences, Statistics and Probability

With the promotion of renewable energy production and a planned phaseout of fossil fuels until 2040, the offshore wind energy sector has started to expand and will continue to increase its capacity in the upcoming decades. This study presents how the installed capacity can be derived from radar imagery provided by the Sentinel-1 mission for all offshore wind turbines on the entire Earth. By [...]

Democratizing Deep Learning Applications in Earth and Climate Sciences on the Web: EarthAIHub

Muhammed Sit, Ibrahim Demir

Published: 2022-04-20
Subjects: Computer Sciences, Earth Sciences, Engineering, Environmental Sciences

Most deep learning application studies have limited accessibility and reproducibility for researchers and students in many domains, especially in earth and climate sciences. In order to provide a step towards improving accessibility to deep learning models in such disciplines, this study presents a community-driven framework and repository, EarthAIHub, that is powered by TensorFlow.js, where deep [...]

A machine learning approach to water quality forecasts and sensor network expansion: Case study in the Wabash River Basin, USA

Tyler Balson, Adam Scott Ward

Published: 2022-04-06
Subjects: Civil and Environmental Engineering, Engineering, Environmental Sciences, Other Civil and Environmental Engineering, Physical Sciences and Mathematics, Water Resource Management

Midwestern cities require forecasts of surface nitrate loads to bring additional treatment processes online or activate alternative water supplies. Concurrently, networks of nitrate monitoring stations are being deployed in river basins, co-locating water quality observations with established stream gauges. However, tools to evaluate the future value of expanded networks to improve water quality [...]

Data from the drain: a sensor framework that captures multiple drivers of chronic floods

Adam Gold, Katherine Anarde, Lauren Grimley, et al.

Published: 2022-04-02
Subjects: Earth Sciences, Environmental Monitoring, Environmental Sciences, Hydrology, Oceanography, Oceanography and Atmospheric Sciences and Meteorology, Physical Sciences and Mathematics

Tide gauge records are commonly used as proxies to detect coastal floods and project future flood frequencies. While these proxies clearly show that sea-level rise will increase the frequency of coastal flooding, tide gauges do not account for land-based sources of coastal flooding and therefore likely underestimate the current and future frequency of coastal flooding. Here we present a new [...]

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