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Showing 34501 to 34550 of 59105 works
An open, scalable, and flexible framework for automated aerial measurement of field experiments
Unoccupied areal vehicles (UAVs or drones) are increasingly used in field research. Drones capable of routinely and consistently capturing high quality imagery of experimental fie…
Simultaneous fall and flow during pyroclastic eruptions: a novel proximal hybrid facies.
The deposits of Plinian and sub-Plinian eruptions provide critical insights into past volcanic events and inform numerical models that aim to mitigate against future hazards. Howe…
60 YEARS OF AIRBORNE AFMAG METHOD EVOLUTION
Development and following commercial use of the airborne electromagnetic method based on natural fields in the audio-frequency band (AFMAG) started in late 50s of the last century…
A multi-control climate policy process for a trusted decision maker
Persistent greenhouse gas (GHG) emissions threaten global climate goals and have prompted consideration of climate controls supplementary to emissions mitigation. We present an id…
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…
Zur Regionalstellung der Rüdersdorfer Schaumkalkfazies im ostelbischen Unteren Muschelkalk Brandenburgs
[...] Die sogenannte Rüdersdorfer Fazies im Unteren Muschelkalk Ostbrandenburgs unterscheidet sich deutlich von der Thüringer Normalfazies durch mächtige Ooid- und Ruditkalke sowi…
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…
Zur faziellen und sedimentologischen Entwicklung des Buntsandsteins in der östlichen Frankenberger Bucht
[…] Die Frankenberger Bucht stellt eine beckenartige Struktur am Westrand der Hessischen Senke dar. Aufgrund ihrer randlichen Lage im Vergleich zum Beckenzentrum weist der Buntsan…
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…
Buchbesprechung
[…] Die Buchbesprechung bewertet die dritte, überarbeitete und ergänzte Auflage des „Lehrbuch der Allgemeinen Physischen Geographie“ als kompaktes, studiengeeignetes Grundlagenwer…
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…
50 Jahre Hessisches Landesamt für Bodenforschung: Standortbestimmung und Ausblick
[...] Der 50. Jahrestag der Wiedererrichtung eines geologischen Landesdienstes unter dem heutigen Namen „Hessisches Landesamt für Bodenforschung“ (HLfB) ist Anlaß genug, um innezu…
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…
Komplexe hydrogeochemisch-genetische Kartierung zur Einschätzung der Salzwassergefährdung pleistozäner und tertiärer Gr…
[...] Der Beitrag befasst sich mit der Untersuchung und Kartierung der Salzwassergefährdung in oberflächennahen Grundwasserleitern im Osten Brandenburgs, insbesondere im Bereich d…
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…
Brandenburgische Geowissenschaftliche Beiträge
[...] Dieser Band bietet eine umfassende Neubewertung der lithostratigraphischen Einheiten des Zechstein in Brandenburg und vergleicht diese mit angrenzenden Regionen. Ausgangspun…
Das Norddeutsche Becken als Teil des Zentraleuropäischen Beckensystems (CEBS): strukturelle Entwicklung und thermisches…
[…] Das Forschungsteam präsentiert den Einsatz von Fernerkundungs- und GIS-gestützten Methoden zur Überwachung geogener Gefahren in ehemaligen Bergbaugebieten Niederschlesiens. Ba…
Jubiläen
[...] Dieser kurze Abschnitt des Landesamtes für Geowissenschaften und Rohstoffe Brandenburg (LGRB) dokumentiert die 60. Geburtstage verdienter Mitarbeiterinnen und Mitarbeiter im…
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…
Die Formierung und Entwicklung des Chemismus natürlicher Grundwässer, ihre Widerspiegelung in hydrogeochemischen Genese…
[...] In diesem Fachbeitrag wird die methodische Weiterentwicklung und landesweite Anwendung des hydrogeochemischen Genesemodells für Brandenburg detailliert beschrieben. Basieren…
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…
Geologisches Jahrbuch Hessen
DFG, SUB Göttingen
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…
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