Auflistung Geophysik, Extraterrestische Forschung nach Titel
Anzeige der Dokumente 1072-1091 von 1223
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The Kalmag model as a candidate for IGRF-13
(Earth, Planets and Space, 2020-10-29)We present a new model of the geomagnetic field spanning the last 20 years and called Kalmag. Deriving from the assimilation of CHAMP and Swarm vector field measurements, it separates the different contributions to the ... -
The late Quaternary environmental and climatic history of North-East Greenland, inferred from coastal lakes
(Univ. Köln, 2009)Eleven lakes and ponds and three lacustrine sediment sequences from coastal East and North-East Greenland were studied for recent hydrological and phytoplankton characteristics and for palaeolimnology, respectively. The ... -
The Levantine Basin - a seismic investigation of the crustal structure and the evolution of the Messinian evaporites
(Univ. Hamburg, 2006)The Levantine Basin - a seismic investigation of the crustal structure and the evolution of the Messinian evaporites ABSTRACT This work presents an analysis of the crustal structure of the Levantine Basin, based on refraction ... -
The Linkage of Serial Cyclone Clustering in Western Europe and Weather Regimes in the North Atlantic‐European Region in Boreal Winter
(Geophysical Research Letters, 2023-01-10)Extra‐tropical cyclones are an important source of weather variability in the mid‐latitudes. Multiple occurrences in a short period of time at a particular location are denominated serial cyclone clustering (SCC), and ... -
The Lithospheric Structure of the Saharan Metacraton From 3-D Integrated Geophysical-Petrological Modeling
(Journal of Geophysical Research: Solid Earth, 2020)We modeled crustal and lithospheric thickness variation as well as the variations in temperature, composition, S wave seismic velocity, and density of the lithosphere beneath the Saharan Metacraton (SMC) applying an ... -
The LRS double prism assembly to be flown on the James Webb Space Telescope and host galaxies of active galactic nuclei in the near infrared
(Univ. Köln, 2008)The work presented in my thesis covers two aspects of modern astronomy: Observations and instrumentation. Part I of this thesis addresses the design, the development and the qualification of the Low Resolution Spectroscopy ... -
The LUCIFER control software - operational and observational characteristics and NIR spectroscopy of galaxy centers
(Univ. Bochum, 2009)Die Dissertation behandelt die Konzepte sowie die Implementierung der operativen Aspekte der Kontrollsoftware des LUCIFER Instruments. Diese ist in vier Schichten aufgeteilt. Die Schnittstelle zwischen Software und Hardware ... -
The Mag.num core field model as a parent for IGRF-13, and the recent evolution of the South Atlantic Anomaly
(Earth, Planets and Space, 2021-02-11)We present the GFZ candidate field models for the 13th Generation International Geomagnetic Reference Field (IGRF-13). These candidates were derived from the Mag.num.IGRF13 geomagnetic core field model, which is constrained ... -
The metagalactic UV background at z < 3
(Univ. Hamburg, 2005)The high ionization state of the intergalactic medium (IGM) is maintained by the metagalactic UV background radiation. This ionizing radiation field is supposed to be the integrated radiation of quasars and young star-forming ... -
The Mie representation for Mercury’s magnetic field
(Earth, Planets and Space, 2021-03-08)The parameterization of the magnetospheric field contribution, generated by currents flowing in the magnetosphere is of major importance for the analysis of Mercury’s internal magnetic field. Using a combination of the ... -
The Mie representation for Mercury’s magnetospheric currents
(Earth, Planets and Space, 2021-11-09)Poloidal–toroidal magnetic field decomposition is a useful application of the Mie representation and the decomposition method enables us to determine the current density observationally and unambiguously in the local region ... -
The Mini Induced Magnetospheres at Mars
(Geophysical Research Letters, 2023-02-08)We report on observations made by the Mars Atmosphere and Volatile EvolutioN spacecraft at Mars, in the region of the ion plume. We observe that in some cases, when the number density of oxygen ions is comparable to the ... -
The narrow line region of active galaxies
(Univ. Bochum, 2005)This thesis presents an imaging and spectroscopic study of the narrow-line region (NLR) in active galactic nuclei (AGNs). We find a correlation between size and luminosity of the NLR with different slopes for type-1 and ... -
The near infrared activity of Sagittarius A*
(Univ. Köln, 2008)The meaning of my thesis was to obtain new insights about the supermassive Black Hole in the center of our Milky Way and its accretion flow. The non-thermal radio, X-ray, and near-infrared source Sagittarius A* (Sgr A*) ... -
The Norwegian-Greenland Sea, the Laschamps, and the Mono Lake Excursions Recorded in a Black Sea Sedimentary Sequence Spanning From 68.9 to 14.5 ka
(Journal of Geophysical Research: Solid Earth, 2020)A full-vector paleomagnetic record, comprising directional data and relative paleointensity (rPI), was derived from 16 sediment cores recovered from the southeastern Black Sea. The obtained data were used to create a stack ... -
The observed recent surface air temperature development across Svalbard and concurring footprints in local sea ice cover
(International Journal of Climatology, 2020)The Svalbard archipelago in the Arctic North Atlantic is experiencing rapid changes in the surface climate and sea ice distribution, with impacts for the coupled climate system and the local society. This study utilizes ... -
The OGS-Eclipse code for simulation of coupled multiphase flow and geomechanical processes in the subsurface
(Computational Geosciences, 2020-05-12)This paper presents a numerical simulation tool for the analysis of coupled processes related to subsurface operations. The tool combines the open-source scientific code OpenGeoSys with the reservoir simulator Eclipse ... -
The Onset of a Substorm and the Mating Instability
(Journal of Geophysical Research: Space Physics, 2021-10-19)The paper underlines the view that the appearance of beading and its nonlinear growth in the onset arc occurs independently from the onset of reconnection in the tail at about 20 RE. Both events follow from an extreme ... -
The Paleoseismic Database of Germany and Adjacent Regions PalSeisDB v1.0
(Historical Earthquakes, Paleoseismology, Neotectonics and Seismic Hazard: New Insights and Suggested Procedures, 2020)Central Europe is an intraplate domain which is characterized by low to moderate seismicity with records of larger seismic events occurring in historical and recent times. These records of seismicity are restricted to just ... -
The Phanerozoic thermo-tectonic evolution of northern Mozambique constrained by 40Ar/39Ar, fission track and (U-Th)/He analyses
(Univ. Bremen, 2007)Thermochronology, Fission track, (U-Th)/He, 40Ar/39Ar,Mozambique, Gondwana, supercontinent dispersal. - Results of thermochronometric investigations comprising 40Ar/39Ar hornblende and biotite, titanite and apatite fission ...