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Showing 34451 to 34500 of 59105 works
Is Net Zero by 2050 Possible?
Achieving Net Zero 2050 does not assure complying with a global warming temperature ceiling. The U.S. might achieve NZ(2050); the world almost certainly will not. For the U.S. to…
Large model parameter and structural uncertainties in global projections of urban heat waves
Urban heat waves (UHWs) are strongly associated with socioeconomic impacts. Reliable projections of these extremes are pressingly needed for local actions in the context of extrem…
Brandenburgische Geowissenschaftliche Beiträge
[...] Der vorliegende Doppelband der Brandenburgischen Geowissenschaftlichen Beiträge umfasst ein breites Spektrum aktueller Forschungen zur Geologie und Landeskunde Brandenburgs.…
The sustainability of beach nourishments: A review of nourishment and environmental monitoring practice
Beach nourishments are a widely used method to mitigate erosion along flood-prone sandy shorelines. In contrast to hard coastal protection structures, nourishments are considered …
Ancient siderites reveal hot and humid super-greenhouse climate
Earth’s climate is warming as the rise in atmospheric CO2 (pCO2) contributes to increased radiative forcing. State-of-the-art models calculate a wide range in Earth’s climate sens…
Sediment redox dynamics in an oligotrophic deep-water lake in Tierra del Fuego: insights from Fe isotopes
Fe speciation and Fe isotopes have been widely used to reconstruct past basin dynamics and water redox conditions. However, sedimentation and early diagenesis of such proxies even…
A systematic approach and software for the analysis of point patterns on river networks
Many geomorphic phenomena such as bank failures, landslide dams, riffle-pool sequences and knickpoints can be modelled as spatial point processes. However, as the locations of the…
COVID-19 Pandemic – Possible implications and effects of monsoons in the Indian sub-continent.
The world is facing an unprecedented time owing to the ongoing COVID 19 pandemic. The research community is racing to find a solution to contain the outbreak, leading to the propo…
Heat does not physically flow in the ways assumed by greenhouse-warming theory
Heat is currently defined as an amount of thermal energy flowing each second per unit area. Temperature is assumed to result from the net amount of heat flowing—the sum of all rad…
Strain migration during multiphase extension, Stord Basin, northern North Sea rift
In multirifted regions, rift-related strain varies along and across the basin during and between each extensional event, and the location of maximum extension often differs betwee…
Der maximale Vorstoß des weichselzeitlichen Inlandeises am Nordrand des Lausitzer Grenzwalls und des Flämings
[...] In diesem wissenschaftlichen Fachartikel untersucht der Autor die südliche Ausdehnung des weichselzeitlichen Inlandeises im zentralen und südlichen Brandenburg. Die Rekonstr…
Antarctic elevation drives hemispheric asymmetry in polar lapse-rate climatology and feedback
The lapse-rate feedback is the dominant driver of stronger warming in the Arctic than the Antarctic in simulations with increased CO2. While Antarctic surface elevation has been i…
Carbon fractions in the world’s dead wood
Alarming increases in tree mortality due to environmental change suggest that contributions of dead wood to global carbon (C) cycles are rapidly increasing 1-3, with dead wood C f…
Architecture and controls of thick, intensely bioturbated, storm-influenced shallow-marine successions: an example from…
Thick (>100 m-thick), highly bioturbated storm-influenced shallow-marine deposits are not frequent in the stratigraphic record, but they tend to be unusually common in aggradat…
Mechanical Response of Shallow Crust to Groundwater Storage Variations: Inferences from Deformation and Seismic Observa…
Changes in continental water storage generate vertical surface deformation, induce crustal stress perturbations and modulate seismicity rates. However, the degree to which regiona…
A novel rules-based shoreface translation model for predicting future coastal change: ShoreTrans
Predicting change to global shorelines presents an increasing challenge as sea-level rise (SLR) accelerates. Many shoreline prediction models use variations of the ‘Bruun-rule’, f…
The New Era of Regional Coastal Bathymetry from Space: A Showcase for West Africa using Sentinel-2 Imagery
Large-scale coastal bathymetry is an essential data product for use in coastal research and governance. Traditional methods of measuring bathymetry, using sonar deployed from ship…
Schleichsand (Oligozän) bei Niederwalluf (Rheingau, Hessen)
[…] Am rechten Ufer des Wallufbaches bei Niederwalluf wurde eine vorwiegend sandige Schichtenfolge freigelegt, die dem Schleichsand beziehungsweise Cyrenenmergel des Mainzer Becke…
Eruptive dynamics in Plinian silicic eruptions
Plinian eruptions are characterized by high magma discharge rates and pyroclastic material containing extraordinary large numbers of bubbles. Upon ascent to the surface magma deco…
Atmospheric thermal convection and strong chaotic fluctuations of global temperature on Earth and on Mars
It is shown that the atmospheric thermal (buoyancy driven) convection plays the main role in generation of the strong chaotic fluctuations of the global temperature through the Ko…
Laboratory experiments and grain based discrete element numerical simulations investigating the thermo-mechanical behav…
Thermo-mechanical loading can occur in numerous engineering geological environments, from both natural and anthropogenic sources. Different minerals and micro-defects in rock caus…
Normal fault kinematics and the role of lateral tip retreat: An example from offshore NW Australia
Understanding how normal faults grow is key to determining the tectono-stratigraphic evolution of rifts, and the distribution and size of potentially hazardous earthquakes. Accord…
Breakup Without Borders: How Continents Speed Up and Slow Down During Rifting
Relative plate motions during continental rifting result from the interplay of local with far-field forces. Here, we study the dynamics of rifting and breakup using large-scale nu…
Evaluating single and multi-date Landsat classifications of land-cover in a seasonally dry tropical forest
Accurate information on the land cover is crucial for efficient monitoring and development of environmental studies in the Brazilian Caatinga forest. It is the largest tropical se…
Where does subduction initiate and cease? A global scale perspective
The thermo-mechanical evolution of the Earths mantle is largely controlled by the dynamics of subduction zones, which connect the surface tectonic plates with the interior. Howeve…
Observation-based Simulations of Humidity and Temperature Using Quantile Regression
The human impacts of changes in heat events depend on changes in the joint behavior of temperature and humidity. Little is currently known about these complex joint changes, eithe…
A framework to quantify the human footprint in Africa using supply and demand of net primary production
The human-environment connection in the mostly rural drylands of Africa forms a complex, interlinked system that provides ecosystem services. This system is susceptible to climati…
GEO-BERLIN ´98 - Nachlese
[...] Der Beitrag erläutert die Bedeutung der Kohlenwasserstoff-Exploration in Brandenburg, die seit den 1960er-Jahren bis in die 1990er-Jahre und darüber hinaus betrieben wurde. …
Description of the continuous nature of organic matter in models of soil carbon dynamics
The understanding of soil organic matter (SOM) dynamics has considerably advanced in recent years. It was previously assumed that most SOM consisted of recalcitrant compounds, whe…
Advective sorting of silt by currents: a laboratory study
Accumulations of fine sediments along continental shelf and deep-sea bathymetric contours, known as contourite drifts, form a sedimentary record that is dependent on oceanographic…
A newly reconciled data set for identifying sea level rise and variability in Dublin Bay
We provide an updated sea level dataset for Dublin for the period 1938 to 2016 at yearly resolution. Using a newly collated sea level record for Dublin Port, as well as two nearby…
Oceanic high-frequency global seismic wave propagation with realistic bathymetry
We present a new approach to simulate high-frequency seismic wave propagation in and under the oceans. Based upon AxiSEM3D (Leng et al. 2019), this method sup- ports a fluid ocean…
Kilometer-scale sound speed structure that affects GNSS-A observation: Case study off the Kii channel
The Global Navigation Satellite System-Acoustic ranging combination technique (GNSS-A) is a recently developed technology to precisely detect seafloor crustal deformation. This me…
Brittle Deformation of Carbonated Peridotite – Insights from Listvenites of the Samail Ophiolite (Oman Drilling Project…
Hole BT1B of the Oman Drilling Project provides a continuous sampling from listvenite into the metamorphic sole that preserves the deformation, hydration and carbonation processes…
Effect of Lateral Outflow on Three-Dimensional Flow Structure in a River Delta
Spatial and temporal patterns in three-dimensional flow structure are linked to channel processes and morphology in many environments. However, there is not yet an understanding o…
Hotspots and mantle plumes revisited: Towards reconciling the mantle heat transfer discrepancy
Mantle convection is the principal mechanism by which heat is transferred from the deep Earth to the surface. Cold subducting slabs sink into the mantle and steadily warm, whilst …
Nachruf: Dr. Volker Manhenke verstorben (29.05.1939–23.04.2019)
[...] Kurz vor Vollendung seines 80. Lebensjahres verstarb der Dipl.-Geologe Dr. Volker Manhenke. Als langjähriger Fachabteilungsleiter im Landesamt für Geowissenschaften und Rohs…
Including Earth-structure uncertainties in nonlinear moment-tensor estimations
Earthquake-source parameters can be estimated from seismic waveforms. Since these data indirectly observe the deformation process, parameters of a physical model that quantifies t…
Brandenburgische Geowissenschaftliche Beiträge
[…] Die Ausgabe vereint eine Reihe fachwissenschaftlicher Artikel, die sich mit geologischen, geochemischen und rohstoffbezogenen Fragestellungen des Landes Brandenburg und intern…
Optimal processing for seismic noise correlations
A wide spectrum of processing schemes is commonly applied during the calculation of seismic noise correlations. This is intended to suppress large-amplitude transient and monochro…
Displacement accumulation during paleoearthquakes for active normal faults on the eastern Mediterranean island of Crete
Active normal faults on the eastern Mediterranean island of Crete form prominent limestone scarps together with basin and range topography. These faults mainly strike E-ESE and N-…
Fate of intertidal microphytobenthos nitrogen under enhanced nutrient availability: Evidence for reduced nitrogen reten…
Sediment microbial communities are an important sink for both organic and inorganic nitrogen (N), with microphytobenthos (MPB) biomass having the largest contribution to short-ter…
Shining light on priming in euphotic sediments: Nutrient enrichment stimulates export of stored organic matter
Estuarine sediments are important sites for the interception, processing and retention of organic matter, prior to its export to the coastal oceans. Stimulated microbial co-metabo…
Predictive modelling of envelope flood extents using geomorphic and climatic-hydrologic catchment characteristics
A topographic index (flood descriptor) that combines the scaling of bankfull depth with morphology was shown to describe the tendency of an area to be flooded. However, this appro…
Integrating field work, large sample hydrology and modeling to inform (inter)national governance of karst water resourc…
Substantial changes of climate and land use are projected in many karst regions in the world for the next decades. Despite these projections, only few studies have been performed …
Untersuchung eines Tannen-Astes aus den eemzeitlichen Ablagerungen von Jänschwalde
[...] Der Beitrag befasst sich mit der detaillierten Untersuchung eines Holzfundes aus den eemzeitlichen Schichten der Fundstelle Jänschwalde im Braunkohlentagebau bei Cottbus. Es…
UNSEEN trends: Detecting decadal changes in 100-year precipitation extremes
Sample sizes of observed climate extremes are typically too small to reliably constrain non-stationary behaviour. To facilitate detection of non-stationarities in 100-year precipi…
Preservation of Organic Carbon in Dolomitized Cambrian Stromatolites and Implications for Microbial Biosignatures in Di…
Stromatolites have been a major focus in the search for ancient microbial life, however, the organic carbon biosignatures of dolomitized stromatolites have not yet been fully char…
Stress Recovery for the Particle-in-cell Finite Element Method
The interelement stress in the Finite Element Method is not continuous in nature, and stress projections from quadrature points to mesh nodes often causes oscillations. The widely…
Überblick zur regionalgeologischen Situation im Land Brandenburg einschließlich Berlin
[...] Der Beitrag liefert eine zusammenfassende Darstellung der geologischen Entwicklung und des Schichtenbaus im Land Brandenburg sowie im Stadtgebiet von Berlin. Die Autoren bes…
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