There are 4072 Preprints listed.

Generation of evolving plate boundaries and toroidal flow from visco-plastic damage-rheology mantle convection and continents

Thorsten W. Becker, Lukas Fuchs

Published: 2023-08-17
Subjects: Geology, Geophysics and Seismology, Tectonics and Structure

Earth's style of planetary heat transport is characterized by plate tectonics which requires rock strength to be reduced plastically in order to break an otherwise stagnant lithospheric lid, and for rocks to have a memory of past deformation to account for strain localization and the hysteresis implied by geological sutures. Here, we explore $\sim$10$^7$ Rayleigh number, [...]

Beyond microbial carbon use efficiency

Ke-Qing Xiao, Chao Liang, Zimeng Wang, et al.

Published: 2023-08-16
Subjects: Biogeochemistry, Earth Sciences, Environmental Microbiology and Microbial Ecology Life Sciences, Life Sciences, Physical Sciences and Mathematics, Soil Science

Microbial carbon use efficiency (CUE) is defined as the proportion of microbial biomass growth C versus substrate C uptake, and thus provides a useful measure of microbially driven accumulation and loss of soil organic carbon (SOC) 1. In a recent study published in Nature 2, the authors use a data-driven machine learning approach to conclude that CUE promotes global SOC storage based on a [...]

imc-precip-iso: Open monthly stable isotope data of precipitation over the Indonesian Maritime Continent

Rusmawan Suwarman, Sandy Hardian Susanto Herho, Halda Aditya Belgaman, et al.

Published: 2023-08-12
Subjects: Climate, Earth Sciences, Environmental Sciences, Fresh Water Studies, Hydrology, Physical Sciences and Mathematics, Water Resource Management

Stable isotopes, $\delta^2$H, $\delta^{18}$O, and d-excess, are valuable tools as natural tracers of diffusion processes and phase changes in the global hydroclimatological cycle. The Indonesian Maritime Continent (IMC) is an archipelago area surrounded by very warm waters which induce convective activities as the primary heat source driving global atmospheric circulation. Given the central role [...]

Marine Cloud Brightening: an airborne concept

Christian Claudel, Andrew John Lockley, Fabian Hoffmann, et al.

Published: 2023-08-12
Subjects: Engineering

Marine cloud brightening (MCB) is a proposed solar radiation modification (SRM) geoengineering technique to enhance marine boundary layer (MBL) cloud albedo. Extant proposals consider 10,000-100,000 autonomous ships spraying seawater, generating and dispersing sea salt nanoparticles. Alternatively, this paper proposes industrially manufacturing NaCl nanoparticles using ethanol anti-solvent brine [...]

M-band discrete wavelet transform–based deep learning algorithm for identifying thermokarst lakes in the QinghaiTibetan Plateau

Andrew Li, Jiahe Liu, Olivia Liu, et al.

Published: 2023-08-12
Subjects: Environmental Sciences

Thermokarst lakes serve as key signs of permafrost thaw, and as point sources of CH4 in the present and near future. However, detailed information on the distribution of thermokarst lakes remains sparse across the entire permafrost region on the Qinghai–Tibet Plateau (QTP). In this research, we developed a new discrete wavelet transform (DWT)–based dual-input deep learning (DL) model using a [...]

Report on Landsat 8 and Sentinel-2B observations of the Nord Stream 2 pipeline methane leak

Matthieu Dogniaux, Joannes D. Maasakkers, Daniel J. Varon, et al.

Published: 2023-08-11
Subjects: Atmospheric Sciences

In late September 2022, explosions of the Nord Stream pipelines caused what could be the largest anthropogenic methane leak ever recorded. We report on Landsat 8 (L8) and Sentinel-2B (S-2B) observations of the sea foam patch produced by the Nord Stream 2 (NS2) leak located close to Bornholm Island, acquired on September 29 and 30, respectively. Usually, reflected sunlight over sea is insufficient [...]

Improving Weather Prediction Technologies: Establishing a Relationship between Air Pollution and Weather Phenomena

Raghav Sriram

Published: 2023-08-11
Subjects: Chemistry, Oceanography and Atmospheric Sciences and Meteorology

The primary focus of this research is to establish a link between air quality, weather patterns, and climate dynamics. Employing a correlative methodology, the study aims to investigate the association between air pollution levels and the occurrence frequency of acid rain events. To accomplish this, extensive quantitative meteorological data gathered from weather stations situated in the [...]

Measuring the climate security nexus: the Integrated Climate Security Framework

Grazia Pacillo, Theresa Liebig, Bia Carneiro, et al.

Published: 2023-08-10
Subjects: International and Area Studies

International, regional, and national organizations and policymakers are increasingly acknowledging the implications of climate on peace and security, but robust research approaches that embrace the complexity of this nexus are lacking. In this paper, we present the Integrated Climate Security Framework (ICSF), a mixed-methods framework to understand the mechanisms of climate–conflict linkages at [...]

Can nature-based solutions support economic recovery? A review of reviews on the economic outcomes of NbS

Alexandre Chausson, Alison Smith, Brian O'Callaghan, et al.

Published: 2023-08-10
Subjects: Environmental Sciences

Nature-based solutions (NbS) involve working with nature to address societal challenges, with benefits for both people and biodiversity. However, their potential role in recovery from economic crises, such as those arising from conflicts or pandemics, remains underexplored. We conducted a systematic review of reviews on the economic impact of nature-based interventions. From 46 relevant reviews, [...]

Ecosystem restoration can lead to carbon recovery in semi-arid savanna grasslands in India

Manan Bhan, Chetan Misher, Abhijeet Kulkarni, et al.

Published: 2023-08-10
Subjects: Environmental Monitoring, Natural Resources and Conservation, Other Ecology and Evolutionary Biology

Semi-arid savanna grasslands (SG) in India deliver enormous benefits to people and nature but are currently undergoing large-scale degradation. Soil carbon stocks in degraded SGs vary in response to a host of anthropogenic driving factors including agricultural expansion and industrial development. Although there is increasing support for restoring grasslands by planting native grass species, its [...]

Gender relations and decision-making on climate change adaptation in rural East African households: A qualitative systematic review

Johanne Niemann, Miriam El-Mahdi, Helle Samuelsen, et al.

Published: 2023-08-09
Subjects: Environmental Studies

Background: Climatic changes are threatening rural livelihoods in East Africa. Evidence suggests that climate change adaptation in this context might reproduce inequitable intra-household gender relations and that adaptation may be more effective when women are involved in meaningful ways. Hence, a nuanced understanding of the gendered nature of intra-household adaptation decision-making is [...]

CEDAR-GPP: spatiotemporally upscaled estimates of gross primary productivity incorporating CO2 fertilization

Yanghui Kang, Max Gaber, Maoya Bassiouni, et al.

Published: 2023-08-09
Subjects: Earth Sciences, Physical Sciences and Mathematics

Gross primary productivity (GPP) is the largest carbon flux in the Earth system, playing a crucial role in removing atmospheric carbon dioxide and providing the sugars and starches needed for ecosystem metabolism. Despite the importance of GPP, however, existing estimates present significant uncertainties and discrepancies. A key issue is the underrepresentation of the CO2 fertilization effect, a [...]

Eocene (50-55 Ma) greenhouse climate recorded in nonmarine rocks of San Diego, CA, USA

Adrian Broz, Devin Pritchard-Peterson, Sarah Schneider, et al.

Published: 2023-08-08
Subjects: Chemistry, Climate, Earth Sciences, Geochemistry, Geology, Physical Sciences and Mathematics, Soil Science, Stratigraphy

Nonmarine rocks in sea cliffs of southern California store a detailed record of weathering under tropical conditions millions of years ago, where today the climate is much drier and cooler. This work examines early Eocene (~50-55 million-year-old) deeply weathered paleosols (ancient, buried soils) exposed in marine terraces of northern San Diego County, California, and uses their geochemistry and [...]

Exclusive seismoacoustic detection and characterisation of an unseen and unheard fireball in the North Atlantic

Stephen Paul Hicks, Sandro B Matos, Adriano Pimentel, et al.

Published: 2023-08-08
Subjects: Astrophysics and Astronomy, Earth Sciences, Physical Sciences and Mathematics

Small meteoroids that enter Earth’s atmosphere often go unnoticed; their detection and characterisation rely on human observations, introducing observational biases in space and time. Acoustic shockwaves from meteoroid ablation convert to infrasound and seismic energy, enabling fireball detection using seismoacoustic methods. We analysed an unreported fireball in 2022 near the Azores, recorded by [...]

An Overview of Seismic Activities in Ghana: A Systematic Review

Baah Asare-Bediako, Cyril Dziedzorm Boateng, Sylvester Kojo Danuor, et al.

Published: 2023-08-08
Subjects: Education, Physical Sciences and Mathematics

Seismic activities pose significant challenges to societies globally. Therefore, it is crucial to understand their occurrence, patterns, and impacts. By studying seismic activities, including earthquakes, researchers can investigate their occurrence, distribution, and characteristics which can provide effective management and risk reduction strategies. The southern part of Ghana is prone to [...]


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