Auflistung Geophysik, Extraterrestische Forschung nach Titel
Anzeige der Dokumente 1185-1204 von 1211
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Water temperature control on CO2 flux and evaporation over a subtropical seagrass meadow revealed by atmospheric eddy covariance
(Limnology and Oceanography, 2020-10-08)Subtropical seagrass meadows play a major role in the coastal carbon cycle, but the nature of air–water CO2 exchanges over these ecosystems is still poorly understood. The complex physical forcing of air–water exchange in ... -
Water vapor in the tropical upper troposphere - on the influence of deep convection
(Univ. Köln, 2002)Wasserdampf ist eines der wichtigsten atmosphärischen Spurengase. Sein Einfluss auf das Klima, die Chemie und den Energiehaushalt ist bedeutend. Von besonderem Interesse ist dabei die Wasserdampfverteilung in der oberen ... -
Wavefield methods to analyze passive ocean bottom seismic data - application to the Tyrrhenian sea
(Univ. Hamburg, 2006)In this study different full waveform techniques was developed for the investigation of seismic ocean bottom single station data. These techniques were applied to data obtained in a pilot ocean bottom experiment in the ... -
Waveguide heterodyne mixers at THz-frequencies - superconducting hot electron bolometers on 2-m63m [2-mym] Si3N4 membranes for GREAT and CONDOR
(Univ. Köln, 2007)Design and performance of waveguide mixers at 1.4 THz and 1.9 THz based on NbTiN phonon-cooled hot electron bolometers (HEB) fabricated on a 2 æm thick Si_3N_4 membrane. The membrane is bonded to a silicon frame in the ... -
Wavelet transform‐based seismic facies classification and modelling: application to a geothermal target horizon in the NE German Basin
(Geophysical Prospecting, 2019-09-10)At the geothermal test site near Groß Schönebeck (NE German Basin), a new 3D seismic reflection survey was conducted to study geothermal target layers at around 4 km depth and 150°C. We present a workflow for seismic facies ... -
Weather regimes and analogues downscaling of seasonal precipitation for the 21st century: A case study over Israel
(International Journal of Climatology, 2019)Abstract Global climate models provide only partial information on local-scale phenomenon, such as precipitation, primarily due to their coarse resolution. In this study, statistical downscaling algorithms, based on both ... -
WeatherBench: A Benchmark Data Set for Data-Driven Weather Forecasting
(Journal of Advances in Modeling Earth Systems, 2020)Data-driven approaches, most prominently deep learning, have become powerful tools for prediction in many domains. A natural question to ask is whether data-driven methods could also be used to predict global weather ... -
Wechselwirkung des Mars mit dem Sonnenwind - Hybrid-Simulationen mit besonderem Bezug zur Wasserbilanz
(Univ. Zugl.: Braunschweig, 2009)Seit den 60er Jahren des letzten Jahrhunderts ist Mars immer wieder das Ziel von Raumfahrtmissionen gewesen, um unter anderem nach Wasser auf unserem Nachbarplaneten zu suchen. Nachdem die bisher analysierten Oberflächenmerkmale ... -
What over 100 drillings tell us: a new method for determining the Koenigsberger ratio of soils from magnetic mapping and susceptibility logging
(Archaeological Prospection, 2020)We investigate the relative fractions of remanent and induced magnetization of the fillings of neolithic long pits in order to develop remanent magnetization as an additional parameter for the archaeological interpretation ... -
When Do Subpollen Particles Become Relevant for Ice Nucleation Processes in Clouds?
(Journal of Geophysical Research: Atmospheres, 2022-12-14)When exposed to sufficiently humid environments, pollen grains burst and release large quantities of small subpollen particles (SPPs) which carry ice nucleating macromolecules. In this study, for the first time we develop ... -
When Does the Lorenz 1963 Model Exhibit the Signal‐To‐Noise Paradox?
(Geophysical Research Letters, 2021-02-19)Seasonal prediction systems based on Earth System Models exhibit a lower proportion of predictable signal to unpredictable noise than the actual world. This puzzling phenomena has been widely referred to as the signal‐to‐noise ... -
When There Is No Offset: A Demonstration of Seismic Diffraction Imaging and Depth-Velocity Model Building in the Southern Aegean Sea
(Journal of Geophysical Research: Solid Earth, 2020)A vast majority of marine geological research is based on academic seismic data collected with single-channel systems or short-offset multichannel seismic cables, which often lack reflection moveout for conventional velocity ... -
Whole Atmosphere Model Simulations of Ultrafast Kelvin Wave Effects in the Ionosphere and Thermosphere
(Journal of Geophysical Research: Space Physics, 2020)The response of the upper atmosphere to equatorial Kelvin waves with a period of ∼3 days, also known as ultrafast Kelvin waves (UFKWs). The whole atmosphere model Ground-to-topside model of Atmosphere and Ionosphere for ... -
Will dairy cattle production in West Africa be challenged by heat stress in the future?
(Climatic Change, 2020-05-15)This study focuses on heat stress conditions for dairy cattle production in West Africa under current and future climatic conditions. After testing the accuracy of the dynamically downscaled climate datasets for simulating ... -
Wind Power Input to Ocean Near‐Inertial Waves Diagnosed From a 5‐km Global Coupled Atmosphere‐Ocean General Circulation Model
(Journal of Geophysical Research: Oceans, 2023-02-14)Using the 5 km coupled general circulation model ICON, the surface internal wave energy source, crucial for the oceanic circulation, is quantified as the wind‐induced wave energy flux that radiates from the mixed layer ... -
Wind turbine induced seismic signals: the large-scale SMARTIE1 experiment and a concept to define protection radii for recording stations
(Near Surface Geophysics, 2020)Wind turbines produce mechanical energy that can propagate to the ground and disturb sensitive measurements such as seismic recordings. The aim of the large-scale experiment Seismic Monitoring And Research of wind Turbine ... -
WRF‐based dynamical downscaling of ERA5 reanalysis data for High Mountain Asia: Towards a new version of the High Asia Refined analysis
(International Journal of Climatology, 2020-06-18)The High Asia Refined analysis (HAR) is a regional atmospheric data set generated by dynamical downscaling of the Final operational global analysis (FNL) using the Weather Research and Forecasting (WRF) model. It has been ... -
X-ray and optical properties of X-ray luminous active galactic nuclei
(Univ. Potsdam, 2008)Giacconi et al. (1962) discovered a diffuse cosmic X-ray background with rocket experiments when they searched for lunar X-ray emission. Later satellite missions found a spectral peak in the cosmic X-ray background at ~30 ... -
X-ray studies of ultraluminous infrared galaxies observed with XMM-Newton
(Univ. Hamburg, 2006) -
Year‐round sub‐seasonal forecast skill for Atlantic–European weather regimes
(Quarterly Journal of the Royal Meteorological Society, 2021-10-25)Weather regime forecasts are a prominent use case of sub‐seasonal prediction in the midlatitudes. A systematic evaluation and understanding of year‐round sub‐seasonal regime forecast performance is still missing, however. ...