Auflistung Geophysik, Extraterrestische Forschung nach Titel
Anzeige der Dokumente 745-764 von 1211
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On the determination of the atmospheric outer scale length of turbulence using GPS phase difference observations: the Seewinkel network
(Earth, Planets and Space, 2020-12-04)Microwave electromagnetic signals from the Global Navigation Satellite System (GNSS) are affected by their travel through the atmosphere: the troposphere, a non-dispersive medium, has an especial impact on the measurements. ... -
On the Dynamical Importance of Gravity Wave Sources Distributed Over Different Heights in the Atmosphere
(Journal of Geophysical Research: Space Physics, 2023-03-15)Gravity waves (GWs) are generated at all altitudes in the atmosphere, but sources above the lower stratosphere are rarely considered by parameterizations employed in general circulation models. This study assesses the ... -
On the evaluation of climate change impact models
(Wiley Interdisciplinary Reviews: Climate Change, 2022-03-03)In‐depth understanding of the potential implications of climate change is required to guide decision‐ and policy‐makers when developing adaptation strategies and designing infrastructure suitable for future conditions. ... -
On the exploration of a marine aquifer offshore Israel by long-offset transient electromagnetics
(Geophysical Prospecting, 2019)The existence of aquifers extending from land beneath the sea floor up to a distance of several kilometres has been observed and examined all over the world. The coastal aquifer of Israel is a heavily used groundwater ... -
On the influence of local inhomogeneities on cosmological observables - from galaxies to the microwave background
(Univ. Bielefeld, 2007)Despite the good consistency of the cosmological standard model with the bulk of present observations, a number of unanticipated features have recently been detected within large-angle data of the Cosmic Microwave Background. ... -
On the Limitations and Implications of Modeling Heat Transport in Porous Aquifers by Assuming Local Thermal Equilibrium
(Water Resources Research, 2020)Heat transport in natural porous media, such as aquifers or streambeds, is generally modeled assuming local thermal equilibrium (LTE) between the fluid and solid phases. Yet, the mathematical and hydrogeological conditions ... -
On the possibility of getting traceable time and frequency measurements via GNSS receivers
(GPS Solutions, 2020-09-02)The realization of Coordinated Universal Time, one of the tasks of the International Bureau of Weights and Measures, relies on a network of international time links which currently is organized in a star-like scheme that ... -
On the relevance of adhesion - applications to Saturn's rings
(Univ. Potsdam, 2006)Seit ihrer Entdeckung im Jahre 1610 durch Galileo Galilei faszinieren die Ringe des Saturn sowohl Laien als auch Experten. Planetare Ringe finden sich in der Äquatorialebene aller vier Riesenplaneten unseres Sonnensystems ... -
On the representation of atmospheric circulation modes in regional climate models over Western Europe
(International Journal of Climatology, 2022-07-27)Atmospheric circulation is a key driver of climate variability, and the representation of atmospheric circulation modes in regional climate models (RCMs) can enhance the credibility of regional climate projections. This ... -
On the Resolution of Triangular Meshes
(Journal of Advances in Modeling Earth Systems, 2022-10-08)It is generally agreed that the resolution of a regular quadrilateral mesh is the side length of quadrilateral cells. There is less agreement on the resolution of triangular meshes, exacerbated by the fact that the numbers ... -
On the Ridging of the South Atlantic Anticyclone Over South Africa: The Impact of Rossby Wave Breaking and of Climate Change
(Geophysical Research Letters, 2022-10-19)Ridging South Atlantic Anticyclones contribute an important amount of precipitation over South Africa. Here, we use a global coupled climate model and the ERA5 reanalysis to separate for the first time ridging highs (RHs) ... -
On the Temperature Dependence of the Cloud Ice Particle Effective Radius—A Satellite Perspective
(Geophysical Research Letters, 2023-03-21)Cloud ice particle effective radius in atmospheric models is usually parametrized. A widely‐used parametrization comprises a strong dependence on the temperature. Utilizing available satellite‐based estimates of both cloud ... -
On the treatment of the geodetic boundary value problem by means of regular gravity space formulations - proof of concept based on numerical closed loop simulations
(Univ. Stuttgart, 2009)The aim of this thesis is to present an alternative for the solution of a fundamental problem of geodesy. This problem, the so-called classical geodetic boundary value problem, comprises the determination of the figure of ... -
On Timescales and Reversibility of the Ocean's Response to Enhanced Greenland Ice Sheet Melting in Comprehensive Climate Models
(Geophysical Research Letters, 2022-03-01)Warming of the North Atlantic region in climate history often was associated with massive melting of the Greenland Ice Sheet. To identify the meltwater's impacts and isolate these from internal variability and other global ... -
On-the-Fly Calculation of Absorbed and Equivalent Atmospheric Radiation Dose in A Water Phantom with the Atmospheric Radiation Interaction Simulator (AtRIS)
(Journal of Geophysical Research: Space Physics, 2019)Computation of the ionization and radiation dose in arbitrary (exo-) planetary atmospheres due to energetic particles is recently becoming more important due to several reasons that are either correlated with the detection ... -
One Hundred Thousand Years of Geomagnetic Field Evolution
(Reviews of Geophysics, 2019)Paleomagnetic records from sediments, archeological artifacts, and lava flows provide the foundation for studying geomagnetic field changes over 0–100 ka. Late Quaternary time-varying spherical harmonic models for 0–100 ka ... -
One Step at a Time: How Model Time Step Significantly Affects Convection-Permitting Simulations
(Journal of Advances in Modeling Earth Systems, 2019)We show that there is a strong sensitivity of cloud microphysics to model time step in idealized convection-permitting simulations using the COnsortium for Small-scale MOdeling model. Specifically, we found a 53% reduction ... -
On‐site non‐destructive determination of the remanent magnetization of archaeological finds using field magnetometers
(Archaeological Prospection, 2021-09-30)The determination of the natural remanent magnetization (NRM) of archaeological features can be used for magnetic modelling, joining of shards, archaeomagnetic dating or the investigation of the firing–cooling–collapsing ... -
Operator-splitting methods for wave-equations
(Humboldt-Univ., Berlin2007)The motivation to our studies came from simulation of earth-quakes, that are modeled with elastic wave equations. In our paper we focus on the study of the stiff problems for the wave-equations. Due to this contribution ... -
Opportunistic Constant Target Matching—A New Method for Satellite Intercalibration
(Earth and Space Science, 2020)Opportunistic constant target matching is a new method for satellite intercalibration. It solves a long-standing issue with the traditional simultaneous nadir overpass (SNO) method, namely, that it typically provides only ...