Results 201 to 210 of about 186,008 (265)

Mathematical Models of Flexible Spacecraft Dynamics : A Survey of Order Reduction Approaches

, 1985
P.T.L.M. van Woerkom
openalex   +1 more source

Exploring Mercury's Tidal Stresses Through Time: Effects of Orbital Eccentricity, Rotational Dynamics, and Their Implications for Tectonics

Journal of Geophysical Research: Planets, Volume 130, Issue 6, June 2025.
Abstract Mercury's tectonics are assumed to have originated mainly from the planet's cooling and contraction processes, but tidal stresses are hypothesized to have influenced the orientations of scarp features and faults, potentially imparting a preferred orientation during their formation.
Liliane M. L. Burkhard, Nicolas Thomas
wiley   +1 more source

Thermal Impacts of Atmospheric Gravity Waves in the Martian Thermosphere

Journal of Geophysical Research: Planets, Volume 130, Issue 6, June 2025.
Abstract Observations of the Martian thermosphere have revealed small‐scale, large amplitude fluctuations believed to be associated with atmospheric gravity waves (GWs). Previous analysis of the MAVEN Neutral Gas and Ion Mass Spectrometer (NGIMS) data has described the overall behavior of these waves and their consistency with GW theory. One of the key
Scott L. England, Aishwarya Kumar, Guiping Liu, Mehdi Benna   +3 more
wiley   +1 more source

Electron Structures in Titan's Induced Magnetosphere and Low‐Frequency Wave Activity

Journal of Geophysical Research: Planets, Volume 130, Issue 6, June 2025.
Abstract The interaction of Titan's ionosphere with Saturn's magnetosphere leads to a mix of perturbed electromagnetic fields and accelerated and thermalized plasma in the induced magnetosphere. The complexity of this region has been noted in previous studies.
Konstantin Kim, Niklas J. T. Edberg, Ronan Modolo, Michiko Morooka, R. J. Wilson, Andrew J. Coates, Anne Wellbrock, Jan‐Erik Wahlund, Erik Vigren, Ali Sulaiman, Cesar Bertucci, Ravindra Desai, Leonardo Regoli   +12 more
wiley   +1 more source

Ionospheric Analysis With Martian Mutual Radio Occultation

Journal of Geophysical Research: Planets, Volume 130, Issue 6, June 2025.
Abstract This study presents a comprehensive analysis of the Martian ionosphere using Mutual Radio Occultation (RO) observations between Mars Express and Trace Gas Orbiter, featuring 71 full vertical profiles out of a total of 124 measurements. Among these, 35 measurements were taken from regions with Solar Zenith Angles lower than 40°.
Jacob Parrott, Håkan Svedhem, Beatriz Sánchez‐Cano, Olivier Witasse, Colin Wilson, Ingo Müller‐Wodarg   +5 more
wiley   +1 more source

Satellite Internal Charging for a Reasonable Worst‐Case

Space Weather, Volume 23, Issue 6, June 2025.
Abstract Increases in the flux of high energy electrons in the Earth's radiation belts cause satellite charging which can lead to an electrostatic discharge, anomalies and disruption to service. For geostationary orbit (GEO) there are guidelines on how much shielding to protect electronic components, but not for lower orbits.
R. B. Horne, P. Y. Lam, N. P. Meredith, S. A. Glauert, P. Kirsch   +4 more
wiley   +1 more source

Empirical Reconstruction of Pre‐1995 Extreme Storms Using ML‐Derived Solar Wind Inputs

Space Weather, Volume 23, Issue 6, June 2025.
Abstract The storm‐time geomagnetic field and electric currents are reconstructed for extreme storms before 1995: the July 1982 superstorm and the March 1989 Hydro‐Québec grid collapse event. The reconstructions are based on an improved magnetic field data mining method utilizing recently published machine learning‐derived solar wind data.
G. K. Stephens, M. I. Sitnov, N. A. Tsyganenko, R. S. Weigel   +3 more
wiley   +1 more source

Evaluation of ECOSTRESS Collection 2 Evapotranspiration Products: Strengths and Uncertainties for Evapotranspiration Modeling

Water Resources Research, Volume 61, Issue 6, June 2025.
Abstract The ECOsystem Spaceborne Thermal Radiometer Experiment on Space Station (ECOSTRESS) collects thermal observations from the International Space Station to support evapotranspiration (ET) research at fine spatial resolutions (70 m × 70 m). Initial ET from ECOSTRESS Collection 1 was used in scientific research and applications, though subsequent ...
Zoe Amie Pierrat, Adam J. Purdy, Gregory Halverson, Joshua B. Fisher, Kanishka Mallick, Madeleine Pascolini‐Campbell, Youngryel Ryu, Martha C. Anderson, Claire Villanueva‐Weeks, Margaret C. Johnson, Brenna Hatch, Evan Davis, Yun Yang, Kerry Cawse‐Nicholson   +13 more
wiley   +1 more source

Multitaper Magnitude‐Squared Coherence for Time Series With Missing Data: Understanding Oscillatory Processes Traced by Multiple Observables

Earth and Space Science, Volume 12, Issue 6, June 2025.
Abstract To explore the hypothesis of a common source of variability in two time series, observers may estimate the magnitude‐squared coherence (MSC), which is a frequency‐domain view of the cross correlation. For time series that do not have uniform observing cadence, MSC can be estimated using Welch's overlapping segment averaging.
Sarah E. Dodson‐Robinson, Charlotte Haley   +1 more
wiley   +1 more source

Multi‐Point Satellites Observed Dawnside Subauroral Polarization Streams (SAPS) Developed on a Short Timescale Under Weak‐Storm and Non‐Storm Substorm Conditions

Journal of Geophysical Research: Space Physics, Volume 130, Issue 6, June 2025.
Abstract We study the development of the magnetosphere‐ionosphere (M‐I) conjugate dawnside Subauroral Polarization Streams (SAPS) by investigating the newly‐formed dawnside SAPS observed soon after dawnside substorm onset. Our topside‐ionosphere results show that (a) the eastward dawnside SAPS flow was weaker than the eastward auroral return flow and ...
Ildiko Horvath, Brian C. Lovell
wiley   +1 more source