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Showing 31151 to 31200 of 59105 works
A permafrost glacial hypothesis – Permafrost carbon might help explaining the Pleistocene ice ages
Während der letzten ~100 ka Glazial-Interglazial-Zyklen war die Konzentration des Treibhausgases CO2 in der Atmosphäre eng mit der globalen Temperatur gekoppelt. Die Gründe fuür d…
Potenziale zur Realisierung des Natur- und Klimaschutzes in niedersächsischen Mooren
Abstract: In addition to the widespread use of peatlands for agricultural purposes, which is also common in other German states, the raised bogs in Lower Saxony are still also use…
Nomadismus, ein Entwicklungsproblem?
Die Frage "Nomadismus — ein Entwicklungsproblem?" kann inhaltlich in zwei Richtungen interpretiert werden. Zum einen hinsichtlich der Probleme, die sich mit dem Nomadismus innerha…
Rechnergestützte Bilddatenanalyse im Umweltmonitoring
Die Arbeit untersucht, inwieweit die rechnergestützte Analyse digitaler Luft- und Satellitenbilddaten bestehende Verfahren im Umweltmonitoring optimieren kann. Zunächst wird der S…
Predictability of Antarctic Sea Ice Edge on Subseasonal Time Scales
Coupled subseasonal forecast systems with dynamical sea ice have the potential of providing important predictive information in polar regions. Here, we evaluate the ability of ope…
SAD: Verifying the scale, anisotropy and direction of precipitation forecasts
One important attribute of meteorological forecasts is their representation of spatial structures. While several existing verification methods explicitly measure a structure error…
The Arctic Ocean in CMIP6 Models: Biases and Projected Changes in Temperature and Salinity
We examine the historical evolution and projected changes in the hydrography of the deep basin of the Arctic Ocean in 23 climate models participating in the Coupled Model Intercom…
Otolithen aus dem Unter-Pliozän von Süd-Sizilien und aus der Toscana
Aus altersmäßig nur geringfügig unterschiedlichen Ablagerungen des Unter-Pliozän von Süd-Sizilien, von Fundstellen in der Umgebung der Städte Agrigent, Porto Empedocle und Sciacca…
[Neue Nr. 5316] Ballersbach / Geologische Karte
Geologische Karte 1: 25 000 mit Erläuterungen. Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierun…
[Neue Nr. 4968] Kattern [Breslau Süd, Wrocław-Krzyki, Święta Katarzyna] / Geologische Karte
Geologische Karte 1: 25 000 mit Erläuterungen. Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierun…
A new approach to classification of 40 years of Antarctic sea ice concentration data
In this paper, we present a characterization of Antarctic sea ice based on the classification of annual sea ice concentration (SIC) data from 1979 to 2018. A clustering algorithm …
Transgression und Umlagerung im Gebiet des Helgoland-Riffs
Im Gebiet des Helgoland-Riffs (pleistozänes Reliktmaterial) wurden Längs- und Querprofile mit Sedimentechograph und Side-Scan gefahren. Die Profile wurden abgegriffen, abgebohrt u…
Relative Dispersion of Surface Drifters in the North Sea: The Effect of Tides on Mesoscale Diffusivity
We examine the relative dispersion and the contribution of tides on the relative diffusivities of surface drifters in the North Sea. The drifters are released in two clusters, yie…
[Neue Nr. 4034] Egeln / Geologische Karte
Geologische Karte 1: 25 000. Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum, SUB Göt…
Bayesian Calibration and Validation of a Large‐Scale and Time‐Demanding Sediment Transport Model
This study suggests a stochastic Bayesian approach for calibrating and validating morphodynamic sediment transport models and for quantifying parametric uncertainties in order to …
Erstellung einer aktualisierten Moorkarte für das Land Brandenburg
Abstract: Current information on the potential distribution and condition of peatland soils are of great importance. This applies notably for actions with respect to climate and…
Sensitivity study of the planetary boundary layer and microphysical schemes to the initialization of convection over th…
In this study, we present a five-member Weather Research and Forecasting (WRF) physics ensemble over the Arabian Peninsula on the convection-permitting (CP) scale and investigate …
[Neue Nr. 5229] Tambach / Geologische Karte
Geologische Karte 1: 25 000 mit Erläuterungen. Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierun…
Testing the Suitability of Zerovalent Iron Materials for Reactive Walls
Zerovalent iron (ZVI) has been proposed as reactive material in permeable in situ walls for contaminated groundwater. An economically feasible ZVI-based reactive wall requires che…
Interannual Changes in Tidal Conversion Modulate M2 Amplitudes in the Gulf of Maine
<title xmlns:mml="http://www.w3.org/1998/Math/MathML">Abstract</title><p xmlns:mml="http://www.w3.org/1998/Math/MathML" xml:lang="en">The Gulf of Maine's lunar semidiurnal (M<sub>…
Phase Stability of Al‐Bearing Dense Hydrous Magnesium Silicates at Topmost Lower Mantle Conditions: Implication for Wat…
In this study, we investigated the phase stability of Al‐free and Al‐bearing superhydrous phase B (shy‐B) up to 55 GPa and 2500 K. In comparison with Al‐free shy‐B, the incorporat…
Vegetation Trajectories and Shortwave Radiative Forcing Following Boreal Forest Disturbance in Eastern Siberia
Major boreal forest disturbance and associated carbon emissions have been reported in the coldest region of the Northern Hemisphere. Related biophysical feedbacks to climate remai…
Resource and Grade Control Model Updating for Underground Mining Production Settings
A key requirement for the mining industry is the characterization of the spatial distribution of geometallurgical properties of the ore and waste in a mineral deposit. Due to geol…
Zwei cromerzeitliche Artefakt-Fundplätze in der Jüngeren Hauptterrasse am Niederrhein
In zwei aus den Flußterrassen des Rheines fördernden Sand- und Kiesgruben fanden sich Stein-Artefakte, in der Mehrzahl abgerollt: sie sind überwiegend aus Varianten von Quarzit un…
Sulfide Dissolution and Awaruite Formation in Continental Serpentinization Environments and Its Implications to Support…
Serpentinization environments are key locations that support microbial communities by the abiogenic formation of reduced species associated with peridotite alteration. Here we stu…
Compaction control on diagenesis and reservoir quality development in red bed sandstones: a case study of Permian Rotli…
Authigenic minerals formed during diagenesis in conjunction with compaction by burial have long been known to lead to porosity-loss of sandstones, and a subsequent deterioration i…
Present‐Day Upper‐Mantle Architecture of the Alps: Insights From Data‐Driven Dynamic Modeling
The dynamics of the Alps and surrounding regions is still not completely understood, partly because of a non‐unique interpretation of its upper‐mantle architecture. In particular,…
Biometrische Untersuchungen zur Evolution von Theridomys und Blainvillimys (Rodentia, Theridomorpha) des europäischen A…
1800 Backenzähne von Theridomys und Blainvillimys von sechs Lokalitäten der Unteren Süßwassermolasse und aus 21 Spaltenfüllungen der Fränkisch-Schwäbischen Alb sind untersucht w…
Geowissenschaftliche Mitteilungen - GMIT 82
Die Ausgabe der Geowissenschaftlichen Mitteilungen vom Dezember 2020 enthält die Themenblöcke: GEOfokus: (Brennpunkte der Antarktisforschung ), GEOaktiv (Wirtschaft, Beruf, Forsch…
A new unfolding method for the MAGIC telescope
The presented thesis describes an unfolding method whose principle is to determine the probability that a certain set of events has a certain range of energy. Unfolding methods ar…
Towards quantifying changes in forest cover in the Araucaria forest-grassland mosaic in southern Brazil
Quantitative estimates of past vegetation cover are needed both regionally so human-landscape interactions can be better understood, and globally to evaluate the effects of changi…
What Can We Learn From X-Ray Fluorescence Core Scanning Data? A Paleomonsoon Case Study
X-ray fluorescence (XRF) core scanning of marine and lake sediments has been extensively used to study changes in past environmental and climatic processes over a range of timesca…
Structural investigation and strain analysis of a polyphase flower structure in the Lower Saxony Basin, Germany
The Lower Saxony Basin (LSB) is a part of the post-Variscan Central European Basin System. We used a 3-D reflection seismic dataset in the northern LSB, provided by RWE-DEA AG, Ha…
Das Alter des Sylter Kaolinsandes
Aus den Profilen des Kaolinsandes am Morsum-Kliff und am Roten Kliff auf Sylt wurden 2 Braunkohlenflöze von je 1 m Mächtigkeit pollenstratigraphisch und die Begleitschichten sedim…
The effect of water, temperature and strain rate on the dislocation creep microstructure, recystallized grain size and …
Since the work of Griggs & Blacic (1965) it is well known that the crystal plastic flow strength of ‘wet’ quartz samples is much lower than that of ‘dry’ samples deformed at the s…
A Comparison of Plasticity Regularization Approaches for Geodynamic Modeling
<title xmlns:mml="http://www.w3.org/1998/Math/MathML">Abstract</title><p xmlns:mml="http://www.w3.org/1998/Math/MathML" xml:lang="en">The emergence, geometry and activation of fau…
Neue Arbeitsmethoden der Quartär—Geologie
Es werden neue Methoden vorgeführt, die besonders für die Quartär-Geologie interessant sein können. Die Bestrahlungsanalyse als Weiterentwicklung der Analyse der Quarzkornfarbe wi…
The Energetic 2022 Seismic Unrest Related to Magma Intrusion at the North Mid‐Atlantic Ridge
<title xmlns:mml="http://www.w3.org/1998/Math/MathML">Abstract</title><p xmlns:mml="http://www.w3.org/1998/Math/MathML" xml:lang="en">A seismic swarm affected the 53.3°–54.3° Lati…
Impact of Eurasian Ice Sheet and North Atlantic Climate Dynamics on Black Sea Temperature Variability During the Penult…
Understanding hemisphere-wide millennial-scale temperature variability during past glacials in response to ice sheet dynamics and orbital forcing is one of the key targets for Qua…
Wirkung der Nutzung von Niedermoor-Grünland auf Vegetation und Ertrag
Abstract: The effects of different grassland management on vegetation pattern and yield potential were investigated in a long-term study on a low peat site typical for the count…
Updates in SASfit for fitting analytical expressions and numerical models to small‐angle scattering patterns
Small‐angle scattering is an increasingly common method for characterizing particle ensembles in a wide variety of sample types and for diverse areas of application. SASfit has be…
Zeitschrift für Geophysik, 25 / 5
Hollinderbäumer, J.: Über die Ortung mikroseismischer Stürme . . . 209 ; David, E..: Dynamische Kompressibilitätsmessungen für hohe Drücke . . . 239 ; Rao, S. H.: Gutdeutsch, …
Using a Paleosurface to Constrain Low-Temperature Thermochronological Data: Tectonic Evolution of the Cuevas Range, Cen…
Dispersion of low-temperature thermochronologic data from nine samples collected on a deformed paleosurface preserved on the Cuevas range (Central Andes) can be exploited to unrav…
Interspinifex Ni sulfide ore from Victor South-McLeay, Kambalda, Western Australia
Spinifex-textured olivine plates hosted in sulfides are usually named “interspinifex ore” in komatiite-hosted sulfide deposits. This ore type is rare but provides important geneti…
Sozio-ökonomische Bedingungen und Auswirkungen sowie Raumprobleme des amerikanischen Tourismus unter besonderer Berücks…
Seit der Mitte des 20. Jahrhunderts hat sich die Tourismusnachfrage in vielen Ländern der industrialisierten Welt zu einem Massenphänomen entwickelt. Aufgrund der erreichten Größe…
Arsenic release from a natural rock under near-natural oxidizing conditions
The solubilization of arsenic (As) from an ore material (native Arsenic [As, trig.] with Lollingite [FeAs2, rh.]) was characterized in leaching tests lasting for ≤ 99 days. The ex…
[Neue Nr. 2530] Gresse [Schwanheide] / Geologische Karte
Geologische Karte 1: 25 000. Nur ehem. preussisches Gebiet geologisch bearbeitet. Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durc…
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