Preprints

Filtering by Subject: Environmental Sciences

Data Science for Geoscience: Recent Progress and Future Trends from the Perspective of a Data Life Cycle

Xiaogang Ma

Published: 2021-05-04
Subjects: Artificial Intelligence and Robotics, Databases and Information Systems, Earth Sciences, Environmental Sciences, Numerical Analysis and Scientific Computing, Theory and Algorithms

Data science receives increasing attention in a variety of geoscience disciplines and applications. Many successful data-driven geoscience discoveries have been reported recently, and the number of geoinformatics and data science sessions have begun to increase in many geoscience conferences. Across academia, industry, and governmental sectors, there is a strong interest to know more about the [...]

Knowledge graph construction and application in geosciences: A review

Xiaogang Ma

Published: 2021-04-30
Subjects: Artificial Intelligence and Robotics, Computer Engineering, Computer Sciences, Databases and Information Systems, Earth Sciences, Environmental Sciences

Knowledge graph (KG) is a topic of great interests to geoscientists as it can be deployed throughout the data life cycle in data-intensive geoscience studies. Nevertheless, comparing with the large amounts of publications on machine learning applications in geosciences, summaries and reviews of geoscience KGs are still limited. The aim of this paper is to present a comprehensive review of KG [...]

Utilizing Random Forest Machine Learning Models to Determine Water Table Flood Levels through Volunteered Geospatial Information

Raghav Sriram

Published: 2021-04-27
Subjects: Applied Mathematics, Computer Sciences, Earth Sciences, Environmental Sciences, Physical Sciences and Mathematics

Many people use smartphone cameras to record their living environments through captured images, and share aspects of their daily lives on social networks, such as Facebook, Instagram, and Twitter. These platforms provide volunteered geographic information (VGI), which enables the public to know where and when events occur. At the same time, image-based VGI can also indicate environmental changes [...]

LPDynR: a new tool to calculate the Land Productivity Dynamics indicator

Xavier Rotllan-Puig, Eva Ivits, Michael Cherlet

Published: 2021-04-23
Subjects: Environmental Sciences, Natural Resources and Conservation, Natural Resources Management and Policy

As part of the UN Sustainable Development Goal 15 (Life on Land), the indicator 15.3.1 is adopted to measure the Land Degradation Neutrality. Land Degradation Neutrality is addressed as stable —or increasing— state in the amount and quality of land resources required to support ecosystem functions and services and enhance food security during a certain period of time. It is a binary indicator [...]

Release timing and duration control the fate of photolytic compounds in stream-hyporheic systems

Jase Hixson, Adam Scott Ward, Christina Remucal, Megan McConville

Published: 2021-04-22
Subjects: Earth Sciences, Environmental Sciences, Hydrology, Water Resource Management

Predicting environmental fate requires an understanding of the underlying, spatiotemporally variable interaction of transport and transformation processes. Photolytic compounds, for example, interact with both time-variable photolysis and the perennially dark hyporheic zone, generating potentially unexpected dynamics that arise from time-variable reactivity. This interaction has been found to [...]

A Hydrologist’s Guide to Open Science

Caitlyn A Hall, Sheila M. Saia, Andrea Popp, Nilay Dogulu, Stan Schymanski, Niels Drost, Tim van Emmerik, Rolf Hut

Published: 2021-04-22
Subjects: Climate, Earth Sciences, Environmental Sciences, Hydrology, Water Resource Management

Hydrologic research that is open, accessible, reusable, and reproducible will have the largest impact on the scientific community and broader society. While more and more members of the hydrology community and key hydrology organizations are embracing open science practices, technical (e.g., limited coding experience), resource (e.g., open access fees), and social (e.g., fear of being scooped) [...]

Particulate PhozzyLogic Index for policy makers—an index for a more accurate and transparent identification of critical source areas

Gerold Hepp, Eva Strenge, Matthias Zessner

Published: 2021-04-20
Subjects: Environmental Sciences, Physical Sciences and Mathematics, Water Resource Management

This study presents an algorithm for the allocation of particulate phosphorus (PP) loads entering surface waters to their sources of origin, which is a basic requirement for the identification of critical PP source areas and in turn a cost-effective implementation of mitigation measures. Furthermore, it conducts a sensitivity analysis determining the impacts of storm drains, discharge frequencies [...]

Past fires and post-fire impacts reconstructed from a southwest Australian stalagmite

Liza McDonough, Pauline C Treble, Andy Baker, Andrea Borsato, Silvia Frisia, Gurinder Nagra, Katie Coleborn, Michael Gagan, Sirine C Fakra, David PATERSON

Published: 2021-04-14
Subjects: Earth Sciences, Environmental Sciences

Our current understanding of climate and its relationship to fires is generally confined to the recent past where instrumental records and satellite imagery are available. Speleothem records of past environmental change provide a unique opportunity to explore fire frequency and intensity in the past, and the antecedent climatic conditions leading to fire events. Here, we compare fire sensitive [...]

Plastic pollution research in Indonesia: state of science and future research directions to reduce impacts

Paul Vriend, H. Hidayat, Judith van Leeuwen, M.R. Cordova, N.P. Purba, A.J. Löhr, I. Faizal, N. Ningsih, K. Agustina, S. Husrin, D. Suryono, I. Hantoro, B. Widianarko, P. Lestari, Bart Vermeulen, Tim van Emmerik

Published: 2021-04-09
Subjects: Environmental Sciences

Several studies have suggested Indonesia to be among the top plastic polluting countries globally. Data on the presence and amounts of plastic pollution are required to help design effective plastic reduction and mitigation strategies. Research quantifying plastic pollution in Indonesia has picked up in recent years. However, a lack of central coordination in this research has led to research [...]

Near-real-time and state-level monitoring of U.S. CO2 emissions

Chaopeng Hong, Philippe Ciais, Zhu Liu, Olivier Boucher, Wenli Zhao, Pierre Gentine, Yilong Wang, Zhu Deng, Steven J. Davis

Published: 2021-04-07
Subjects: Earth Sciences, Environmental Sciences, Physical Sciences and Mathematics

As the ambition and urgency of climate mitigation efforts across the U.S. increase, annual estimates of national CO2 emissions provide only vague and outdated information about changes and progress. Using near-real-time activity data compiled from numerous sources, here we present and analyze daily, state-level estimates of fossil fuel CO2 emissions from January 2019 through December 2020. Our [...]

A quantitative history of the U.S. Clean Water Act’s jurisdiction

Riley Walsh, Adam Scott Ward

Published: 2021-04-02
Subjects: Earth Sciences, Environmental Sciences, Hydrology, Physical Sciences and Mathematics, Water Resource Management

The Clean Water Act (CWA) is the primary federal mechanism by which the physical, chemical, and biological integrity of streams, lakes, and wetlands are protected in the U.S. The CWA has evolved considerably since its initial passage in 1948, including explicit expansions and contractions of jurisdictional scope through a series of legislative actions, court decisions, and agency rules. Here, we [...]

Towards a morphology diagram for terrestrial carbonates: evaluating the impact of carbonate supersaturation and alginic acid in calcite precipitate morphology

Ramon Mercedes-Martín, Mike Rogerson, Tim Prior, Alexander Brasier, John Reijmer, Ian Billing, Anna Matthews, Tracy Love, Scott Lepley, Martyn Pedley

Published: 2021-03-30
Subjects: Earth Sciences, Environmental Sciences, Physical Sciences and Mathematics

Ancient and recent terrestrial carbonate-precipitating systems are characterised by a heterogeneous array of deposits volumetrically dominated by calcite. In these environments, calcite precipitates display an extraordinary morphological diversity, from single crystal rhombohedral prisms, to blocky crystalline encrustations, or spherulitic to dendritic aggregates. Despite many decades of thorough [...]

A data assimilation framework to constrain the driving processes of anthropogenically induced subsidence

Thibault Candela, Alin Chitu, Elisabeth Peters, Maarten Pluymaekers, Dries Hegen, Kay Koster, Peter Fokker

Published: 2021-03-25
Subjects: Earth Sciences, Environmental Sciences, Oil, Gas, and Energy, Statistics and Probability

Surface movement can be induced by many human subsurface activities: natural gas production, geothermal heat extraction, ground water extraction, phreatic groundwater level lowering, storage of natural gas and CO2. In this manuscript, we focus on subsidence caused by gas production. While geological interpretations, seismic campaigns and flow modeling often provide a relatively rich pre-existing [...]

Can hydrocarbon extraction from the crust enhance or inhibit seismicity in tectonically active regions? A statistical study in Italy

Alexander Garcia, Licia Faenza, Andrea Morelli, Ilaria Antoncecchi

Published: 2021-03-17
Subjects: Earth Sciences, Environmental Sciences, Statistics and Probability

A number of oil- and gas-producing leases have been operating in Italy in the last decades, many of which are located in the surroundings of tectonically active regions. Identifying human-induced seismicity in areas with high levels of natural seismicity is a difficult task for which virtually any result can be a source of controversy. We implemented a large-scale analysis aiming at tracking [...]

Prototyping a collaborative data curation service for coastal science

Evan B Goldstein, Anna E Braswell, Caitlin M Mc Shane

Published: 2021-03-16
Subjects: Environmental Sciences, Geomorphology, Physical Sciences and Mathematics

The growing push for open data has resulted in an abundance of data for coastal researchers, which can lead to problems for individual researchers related to discoverability of relevant data. One solution is to explicitly develop services for coastal researchers to help curate data for discovery, hosting discussions around reuse, community building, and finding collaborators. To develop the idea [...]

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