Auflistung Geophysik, Extraterrestische Forschung nach Titel
Anzeige der Dokumente 125-144 von 1223
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Atmospheric circulation patterns that trigger heavy rainfall in West Africa
(International Journal of Climatology, 2022-04-07)Classification of atmospheric circulation patterns (CP) is a common tool for downscaling rainfall, but it is rarely used for West Africa. In this study, a two‐step classification procedure is proposed for this region, which ... -
Atmospheric Contributions to Global Ocean Tides for Satellite Gravimetry
(Journal of Advances in Modeling Earth Systems, 2022-11-10)To mitigate temporal aliasing effects in monthly mean global gravity fields from the GRACE and GRACE‐FO satellite tandem missions, both tidal and non‐tidal background models describing high‐frequency mass variability in ... -
Atmospheric parameter retrieval from UV-vis-NIR limb scattering measurements
(Univ. Bremen, 2001)The hyperspectral UV-vis-NIR spectrometer SCIAMACHY will be launched aboard the European satellite Envisat. Its limb measurements will provide vertically resolved profiles of trace gases and other atmospheric parameters. ... -
Attribution of Observed Recent Decrease in Low Clouds Over the Northeastern Pacific to Cloud‐Controlling Factors
(Geophysical Research Letters, 2022-01-28)Marine low clouds cool the Earth's climate, with their coverage (LCC) being controlled by their environment. Here, an observed significant decrease of LCC in the northeastern Pacific over the past two decades is linked ... -
Aufbau, Optimierung und Charakterisierung der THz-Optik für GREAT auf SOFIA
(Univ. Köln, 2007)Sternentstehung findet im dichten Teil der Molekülwolken des interstellaren Mediums statt. In diesen Gebieten werden die ablaufenden physikalischen und chemischen Prozesse maßgeblich von der Wechselwirkung zwischen der ... -
August Heinrich Christian Gelpke - ein Astronom am Collegium Carolinum zu Braunschweig
(Univ. Braunschweig, 2005)Anhand der Biographie des Gymnasial- und Hochschullehrers August Heinrich Christian Gelpke (1769-1842) werden folgende Aspekte untersucht: Seine Auseinandersetzung mit der rasanten Entwicklung in den Naturwissenschaften, ... -
Auroral Arcs: The Fracture Theory Revisited
(Journal of Geophysical Research: Space Physics, 2021-01-15)The fracture theory for auroral arcs, developed by the author since 1980, compares the decoupling of the magnetic field from the ionosphere by the auroral acceleration region (AAR) with the breaking of a solid rod. In the ... -
Auswirkung magnetohydrodynamischer Turbulenz und Welle-Teilchen-Wechselwirkung in relativistischen Ausflüssen
(Univ. Bochum, 2004)In der vorliegenden Arbeit werden die Auswirkungen elektromagnetischer, sowie elektrostatischer Turbulenz speziell im Hinblick auf die Anwendung auf Jets aktiver galaktische Kerne untersucht. Dazu werden analytische Lösungen ... -
Automated static and moveout corrections of high-resolution seismic data from the Baltic Sea
(Near Surface Geophysics, 2019)High-frequency multichannel seismic systems provide detailed images of the shallow marine subsurface. In order to exploit the redundancy inherent in such data optimally, traveltime corrections need to account for normal ... -
Automatische Bestimmung von Verknüpfungspunkten für HRSC-Bilder der Mars Express-Mission
(Univ. Hannover, 2008)Photogrammetrie, Mars Express, digitale Bildzuordnung -
Automatisierte universelle CCD-Astrometrie von Kleinplaneten
(Univ. Dresden, 2005)Für Zwecke der differentiellen astrometrischen Positionsbestimmung von Kleinplaneten werden heutzutage verbreitet CCD-Beobachtungen eingesetzt. Insbesondere im Rahmen von Follow-up-Beobachtungsprogrammen sind eine Vielzahl ... -
Bacterial Stern layer diffusion: experimental determination with spectral induced polarization and sensitivity to nitrite toxicity
(Near Surface Geophysics, 2019-08-07)Spectral induced polarization signatures have been used as proxies for microbial abundance in subsurface environments, by taking advantage of the charged properties of microbial cell membranes. The method's applicability, ... -
Baseline Vector Repeatability at the Sub‐Millimeter Level Enabled by Radio Interferometer Phase Delays of Intra‐Site Baselines
(Journal of Geophysical Research: Solid Earth, 2023-03-17)We report the results of position ties for short baselines at eight geodetic sites based on phase delays that are extracted from global geodetic very‐long‐baseline interferometry (VLBI) observations rather than dedicated ... -
Basin‐scale estimates of greenhouse gas emissions from the Mara River, Kenya: Importance of discharge, stream size, and land use/land cover
(Limnology and Oceanography, 2022-06-23)Greenhouse gas fluxes (CO2, CH4, and N2O) from African streams and rivers are under‐represented in global datasets, resulting in uncertainties in their contributions to regional and global budgets. We conducted year‐long ... -
Bathymetric Control on Borchgrevink and Roi Baudouin Ice Shelves in East Antarctica
(Journal of Geophysical Research: Earth Surface, 2021-10-07)The stability of ice shelves and drainage of ice sheets they buttress is largely determined by melting at their atmospheric and oceanic interfaces. Subglacial bathymetry can impact ice shelf stability because it influences ... -
Bathymetry Beneath Ice Shelves of Western Dronning Maud Land, East Antarctica, and Implications on Ice Shelf Stability
(Geophysical Research Letters, 2020-06-13)Antarctica's ice shelves play a key role in stabilizing the ice streams that feed them. Since basal melting largely depends on ice‐ocean interactions, it is vital to attain consistent bathymetry models to estimate water ... -
Beamforming of Rayleigh and Love Waves in the Course of Atlantic Cyclones
(Journal of Geophysical Research: Solid Earth, 2023-02-21)The main sources of the ambient seismic wavefield in the microseismic frequency band (peaking in the ∼0.04–0.5 Hz range) are earth's oceans, namely the wind‐driven surface gravity waves (SGW) that couple oscillations into ... -
Beating 1 Sievert: Optimal Radiation Shielding of Astronauts on a Mission to Mars
(Space Weather, 2021-09-03)Space radiation is one of the main concerns in planning long‐term human space missions. There are two main types of hazardous radiation: solar energetic particles (SEP) and galactic cosmic rays (GCR). The intensity and ... -
Behaviour of tiang tongkat foundation over Pontianak soft organic soil using 3D-finite element analysis
(TU Freiberg, 2008)Peat deposits are distributed mostly along the coast of West Kalimantan, Indonesia, particularly in and around the provincial capital of Pontianak. There are many problems with constructing over peat soil as the existence ... -
Benefits of non-tidal loading applied at distinct levels in VLBI analysis
(Journal of Geodesy, 2020-08-31)In the analysis of very long baseline interferometry (VLBI) observations, many geophysical models are used for correcting the theoretical signal delay. In addition to the conventional models described by Petit and Luzum ...