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Showing 851 to 900 of 5157 works

Hidden Stories: Topic Modeling in Hydrology Literature

Hydrologic research generates large volumes of peer-reviewed literature across a number of evolving sub-topics. It’s becoming increasingly difficult for scientists and practitione…

River sediment geochemistry as a conservative mixture of source regions: Observations and predictions from the Cairngor…

The elemental composition of sediments in rivers is the product of physical and chemical erosion of rocks, which is then transported across drainage networks. A corollary is that …

Sensitivity of evapotranspiration deficit index to its parameters and temporal scales

Sound estimates of drought characteristics are very important for planning intervention measures in drought-prone areas. Among many drought indices used in estimation of drought c…

The off-fault deformation on the North Anatolian Fault Zone and assessment of slip rate from carbonate veins

In the easternmost segment of the North Anatolian Fault (NAF) zone there are discrepancies in earthquake characteristics arising from differences between geodetically determined a…

Evaporative Resistance is of Equal Importance as Surface Albedo in High Latitude Surface Temperatures Due to Cloud Feed…

Arctic vegetation is known to influence Arctic surface temperatures through albedo. However, it is less clear how plant evaporative resistance and albedo independently influence s…

Cave airflow patterns control calcite dissolution rates within a cave stream: Blowing Springs Cave, Arkansas, USA

Erosion rates within streams vary dramatically over time, as differences in discharge and sediment load enhance or inhibit erosion processes. Within cave streams, and other bedroc…

Upper mantle mush zones beneath low melt flux ocean island volcanoes: insights from Isla Floreana, Galápagos

The physicochemical characteristics of sub-volcanic magma storage regions have important implications for magma system dynamics and pre-eruptive behaviour. The architecture of mag…

Quantification and interpretation of the climate variability record

This paper is currently in review for Global and Planetary Change. \\ The spectral view of variability is a compelling and adaptable tool for understanding variability of the clim…

Same but different: A framework to design and compare riverbank plastic monitoring strategies

Plastic pollution in rivers negatively impacts human livelihood and aquatic ecosystems. Monitoring data are crucial for a better understanding of sources, sinks and transport mech…

Deep ductile shear localization facilitates near-orthogonal strike-slip faulting in a thin brittle lithosphere

Some active fault systems comprise near-orthogonal conjugate strike-slip faults, as highlighted by the 2019 Ridgecrest and the 2012 Indian Ocean earthquake sequences. In conventio…

Fault-controlled base-of-scarp deposits

The term base-of-scarp is proposed for those submarine deposits controlled by a fault and physically disconnected from their more proximal counterpart located on the footwall, alt…

The influence of spreading rate and permeability on melt focusing beneath mid-ocean ridges

At mid-ocean ridges, oceanic crust is emplaced in a narrow neovolcanic region on the seafloor, whereas basaltic melt that forms this oceanic crust is generated in a wide region be…

On the thermo-poro-mechanics of chemically active faults

Shear zones in outcrops and core drillings on active faults commonly reveal two scales of localization, with centimeter to tens of meters thick deformation zones embedding much na…

Using Bayesian Hierarchical Modelling to capture cyanobacteria dynamics in Northern European lakes

Cyanobacteria blooms in lakes and reservoirs currently threaten water security and affect the ecosystem services provided by these freshwater ecosystems, such as drinking water an…

Holocene tephrochronology of Kerguelen Archipelago, Subantarctic Indian Ocean

Up to now, no geochemical or geochronological data has been published about Holocene volcanic activity on the Kerguelen Archipelago. Here we present the first continuous Holocene …

Jarosite formation in deep Antarctic ice provides a window into acidic, water-limited weathering on Mars

Many interpretations have been proposed to explain the presence of jarosite within Martian surficial sediments, including the possibility that it precipitated within paleo-ice dep…

A toolbox to quickly prepare flood inundation models for LISFLOOD-FP simulations

Hydrodynamic floodplain inundation models have been popular for many years and used extensively in engineering applications. Continental scale flood studies are now achievable usi…

Recent water mass changes reveal mechanisms of ocean warming

Over 90% of the build up of additional heat in the earth system over recent decades is contained in the ocean. Since 2006 new observational programs have revealed heterogeneous pa…

The perpetual fragility of creeping hillslopes

Soil-mantled hillslopes owe their smooth, convex shape to creep; the slow and persistent, gravity-driven motion of grains on slopes below the angle of repose. Existing models pres…

Human Health Benefits of the Minamata Convention on Mercury

The Minamata Convention is a legally-binding international treaty aimed at reducing the anthropogenic release of mercury, a potent neurotoxin. However, its human health benefit ha…

Probabilistic soil moisture dynamics of water- and energy-limited ecosystems

This paper presents an extension of the stochastic ecohydrological model for soil moisture dynamics at a point of Rodriguez-Iturbe et al. (1999) and Laio et al. (2001). In the ori…

Influence of Minibasin Obstruction on Canopy Dynamics in the northern Gulf of Mexico

In salt-detached gravity-gliding/spreading systems the detachment geometry is a key control on the downslope mobility of the supra-salt sequence. Here we used regional 3D seismic…

Time-Series Prediction Approaches to Forecasting Deformation in Sentinel-1 InSAR Data

Time series of displacement are now routinely available from satellite InSAR and are used for flagging anomalous ground motion, but not yet for forecasting. Here we test the capab…

Increasing economic drought impacts in Europe with anthropogenic warming

While climate change will alter the distribution in time and space of water, quantifications of drought risk in view of global warming remain little explored. Here, we show that i…

A machine learning approach for ozone forecasting and its application for Kennewick, WA

Chemical transport models (CTM) are widely used for air quality modeling, but these models miss forecasting some air pollution events, and require a lot of computational power. In…

What is the hydrologically effective size of a catchment?

Linking human activities and climate change with their consequences for water availability is a prerequisite for sustainable water management, which is traditionally performed at …

Detecting Ground Deformation in the Built Environment using Sparse Satellite InSAR data with a Convolutional Neural Net…

The large volumes of Sentinel-1 data produced over Europe are being used to develop pan-national ground motion services. However, simple analysis techniques like thresholding cann…

Multi-task learning based P/S wave separation and reverse time migration for VSP

P/S wave mode separation is an essential tool for single-mode analysis from multi-component seismic data. Wave separation methods in recorded data require expert knowledge to choo…

A Near-Real-Time Approach for Monitoring Forest Disturbance Using Landsat Time Series: Stochastic Continuous Change Det…

Forest disturbances greatly affect the ecological functioning of natural forests. Timely information regarding extent, timing and magnitude of forest disturbance events is crucial…

Predicting the yield stress of a 3D printed porous material from its internal structure

The design of any engineering structure requires the knowledge, and therefore determination, of the yield, i.e. limit of elasticity, for the building material. Whilst destructive …

Creating Geological Field Trips with the Google Earth Creation Tools

Streetcar2Subduction (https://www.agu.org/streetcar2subduction) was launched in December 2019 as a digital update and extension of the timeless 1984 classic field trip guide “Stre…

COVID-19-related drop in anthropogenic aerosol emissions in China and corresponding cloud and climate effects

The COVID-19 pandemic has led to massive disruptions of public life on a global scale. To halt the spread of the disease, China temporarily shut down parts of the manufacturing an…

Danger of groundwater contamination widely underestimated because of shortcuts for aquifer recharge

Groundwater pollution threatens human and ecosystem health in many areas around the globe. Shortcuts to the groundwater through concentrated recharge are known to transmit short-l…

Asian monsoon amplifies semi-direct effect of biomass burning aerosols on low cloud formation

Low clouds play a key role in the Earth-atmosphere energy balance and influence agricultural production and solar-power generation. Smoke aloft has been found to enhance marine st…

Permeability hysteresis from micro-channels opening during dissolution/reprecipitation cycle

Permeability is a critical parameter for geological resources characterisation. Its evolution with respect to porosity is particularly interesting and many research initiatives fo…

Three Common Statistical Missteps We Make in Reservoir Characterization

Reservoir characterization analysis resulting from incorrect applications of statistics can be found in the literature, particularly in applications where integration of various d…

Construction of fault geometry by finite-fault inversion of teleseismic data

Conventional seismic source inversion estimates the earthquake rupture process on an assumed fault plane that is determined a priori. It has been a difficult challenge to obtain t…

Addressing Model Data Archiving Needs for the Department of Energy’s Environmental Systems Science Community

Researchers in the Department of Energy’s ESS program use a variety of models to advance robust, scale-aware predictions of terrestrial and subsurface ecosystems. ESS projects typ…

Macroscopic flow disequilibrium over aeolian dune fields

Aeolian dune fields are self-organized patterns formed by wind-blown sand. Dunes are topographic roughness elements that impose drag on the atmospheric boundary layer (ABL), creat…

A note on leveraging synergy in multiple meteorological datasets with deep learning for rainfall-runoff modeling

A deep learning rainfall-runoff model can take multiple meteorological forcing products as inputs and learn to combine them in spatially and temporally dynamic ways. This is demon…

On doing large-scale hydrology with Lions: Realising the value of perceptual models and knowledge accumulation

Moving the study domain in hydrology to larger and larger regions leaves us with significant knowledge gaps because we are unable to observe the hydrology of many parts of the wor…

How waves are accelerating global coastal overtopping

The world’s coastal areas are home to about 10% of the human population and support unique and dynamic ecosystems, offering € trillions worth of environmental and societal benefit…

Geomagnetic field variability: geomagnetic dynamo and helical distributed chaos

It is shown that helicity dynamics dominates the thermal convection-driven geomagnetic field variability. The notion of the distributed chaos has been used for this purpose. The l…

Unmixing and mapping components of Northern Ireland’s geochemical composition using FastICA and random forests

There is an increasing trend for the collection of multi-sensory quantitative data to support the mapping of geology and environment. In the United Kingdom and Ireland this trend …

Benchmarking and Inter-Comparison of Sentinel-1 InSAR velocities and time series

Different InSAR algorithms and methods produce velocities and times series that are not identical, even using the same data for the same area. This inconsistency can cause confusi…

Aerosols bias daily weather prediction

Weather prediction is essential to human daily life. Current numerical weather prediction (NWP) models are still subject to substantial forecast bias and rarely consider the impac…

The timing of magmatism and subsequent alteration of basaltic rocks cored at the base of IODP Site U1513, Naturaliste P…

An 82.2 m thick sequence of basaltic rocks was recovered from a deep-sea core on the eastern flank of the Naturaliste Plateau, offshore southwestern Australia during International…

Lower air pollution during COVID-19 lock-down: improving models and methods estimating ozone impacts on crops (accepted…

We suggest that the unprecedented and unintended decrease of emissions of air pollutants during the COVID-19 lockdown in 2020 could lead to declining seasonal ozone concentrations…

EC-Earth Global Climate Simulations: Ireland’s Contributions to CMIP6

The global climate simulations described in this report constitute Ireland’s contribution to the Coupled Model Intercomparison Project (CMIP) (phase 6) (CMIP6) and will be include…

A Reduced Order Approach for Probabilistic Inversions of 3D Magnetotelluric Data I: General Formulation

Simulation-based probabilistic inversions of 3D magnetotelluric (MT) data are arguably the best option to deal with the non-linearity and non-uniqueness of the MT problem. However…

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