Auflistung nach Titel
Anzeige der Dokumente 251-270 von 6897
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Aluminum Components in Bridgmanite Coexisting With Corundum and the CF‐Phase With Temperature
; ; ; ; (Journal of Geophysical Research: Solid Earth, 2023-01-22)
Abstract Phase relations in the MgSiO3–MgAl2O4–Al2O3 system are investigated at 27 GPa and 2000–2600 K using a multi‐anvil apparatus. The AlAlO3 content ... -
Always ready? Primary production of Arctic phytoplankton at the end of the polar night
(Limnology and Oceanography Letters, 2021-11-11)
The end of the polar night with the concurrent onset of photosynthetic biomass production ultimately leads to the spring bloom, which represents the most important event of primary production for the Arctic marine ecosystem. ... -
An ambitious new mission seeks the origin of the moons of Mars
(Proceedings of the National Academy of Sciences, 2023)Two mysterious moons whirl around Mars. Despite the many missions to the planet, not a single one has focused on its satellites — or, rather, not a single successful one. Three previous Martian moon explorers, launched by ... -
Amplification of the Atlantic Multidecadal Oscillation associated with the onset of the industrial-era warming
(Scientific Reports, 2017) -
Amplified Arctic Surface Warming and Sea Ice Loss Due to Phytoplankton and Colored Dissolved Material
; Losa, Svetlana N.; ; ; (Geophysical Research Letters, 2020-11-02)
Optically active water constituents attenuate solar radiation and hence affect the vertical distribution of energy in the upper ocean. To understand their implications, we operate an ocean biogeochemical model coupled to ... -
An Adaptive Hybrid Vertical Equilibrium/Full‐Dimensional Model for Compositional Multiphase Flow
; ; ; ; (Water Resources Research, 2022-01-21)
Efficient compositional models are required to simulate underground gas storage in porous formations where, for example, gas quality (such as purity) and loss of gas due to dissolution are of interest. We first extend the ... -
An adaptive shallow water model on the sphere
(Univ. Bremen, 2009)
This thesis describes the adaptive shallow water model PLASMA-FEMmE. It solves on the sphere the shallow water equations, the prototype for partial differential equations in atmospheric modeling, using a semi-implicit ... -
An analysis of the evolution of reactive species in Fe0/H2O systems.
(Journal of hazardous materials, 2009-09-15)
Aqueous contaminant removal in the presence of metallic iron (e.g. in Fe(0)/H(2)O systems) is characterized by the large diversity of removing agents. This paper analyses the synergistic effect of adsorption, co-precipitation ... -
An Analytical Framework for Determining the Ecological Risks of Wastewater Discharges in River Networks Under Climate Change
; ; ; ; (Earth's Future, 2022-10-03)
Over the last decades, treatment of domestic wastewater promoted by environmental regulations have reduced human health risks and improved water quality. However, ecological risks caused by effluents of wastewater treatment ... -
An ancient process in a modern mollusc: early development of the shell in Lymnaea stagnalis
(BMC Developmental Biology, 2013)Background The morphological variety displayed by the molluscan shell underlies much of the evolutionary success of this phylum. However, the broad diversity of shell forms, sizes, ornamentations and functions contrasts ... -
An andesitic sill complex in the Southern Permian Basin: volcanogenetic model and stratigraphic implications
; ; ; ; ; ; ; ; (International Journal of Earth Sciences, 2020-07-28)
Subvolcanic intrusions are highly variable in shape and structure, and occur in nearly all parts of the upper crust, as a result of extensive volcanic activity. Processes of subvolcanics interacting with the host rock are ... -
An Antarctic molluscan biomineralisation tool-kit
(Scientific Reports, 2016)The Antarctic clam Laternula elliptica lives almost permanently below 0 °C and therefore is a valuable and tractable model to study the mechanisms of biomineralisation in cold water. The present study employed a ... -
An application of WKBJ theory for triad interactions of internal gravity waves in varying background flows
; Akylas, T. R.; (Quarterly Journal of the Royal Meteorological Society, 2021-01-22)
Motivated by the question of whether and how wave–wave interactions should be implemented into atmospheric gravity‐wave parametrizations, the modulation of triadic gravity‐wave interactions by a slowly varying and vertically ... -
An Asthenospheric Upwelling Beneath Central Mongolia — Implications for Intraplate Surface Uplift and Volcanism
; ; ; ; ; ; ; (Acta Geologica Sinica ‐ English Edition, 2021-11-27)
Intraplate processes, such as continental surface uplift and intraplate volcanism, are enigmatic and the underlying mechanisms responsible are not fully understood. Central Mongolia is an ideal natural laboratory for ... -
An automated testing device for continuous measurement of the hysteretic water retention curve of granular media
(Acta Geotechnica, 2020-02-11)
The water retention curve (WRC), representing an important key for the modelling of hydro-mechanical behaviour of unsaturated soils, is still not fully understood, because it originates from microscopic hydraulic and ... -
An early Eocene fossil from the British London Clay elucidates the evolutionary history of the enigmatic Archaeotrogonidae (Aves, Strisores)
(Papers in Palaeontology, 2021-07-18)
Archaeotrogons have long been known from late Eocene and Oligocene localities in France, where limb bones are abundantly represented. The phylogenetic affinities of these birds, however, have remained elusive. Although ... -
An earthquake catalogue for central, northern and northwestern Europe based on MW magnitudes
(Scientific Technical Report / Geoforschungszentrum Potsdam; 2003, 02) -
An Empirical Model of the Equatorial Electron Pitch Angle Distributions in Earth's Outer Radiation Belt
; ; ; ; ; ; ; (Space Weather, 2022-09-20)
In this study, we present an empirical model of the equatorial electron pitch angle distributions (PADs) in the outer radiation belt based on the full data set collected by the Magnetic Electron Ion Spectrometer (MagEIS) ... -
An endless summer: 2018 heat episodes in Europe in the context of secular temperature variability and change
; ; (International Journal of Climatology, 2020)
The year 2018 was affected by very long-lasting, stable summer conditions in vast parts of Europe, in many regions already starting in April and lasting until October. We investigate the thermal characteristics of this ... -
An Energy Conserving Vlasov Solver That Tolerates Coarse Velocity Space Resolutions: Simulation of MMS Reconnection Events
; ; (Journal of Geophysical Research: Space Physics, 2022-02-11)
Vlasov solvers that operate on a phase‐space grid are highly accurate but also numerically demanding. Coarse velocity space resolutions, which are largely unproblematic in particle‐in‐cell (PIC) simulations, can lead to ...
