Results 51 to 60 of about 194,727 (195)

Spectroscopy and photochemistry of planetary atmospheres and ionospheres: Mars, Venus, Titan, Triton and Pluto

open access: yes, 2019
The chemical composition of any planetary atmosphere is of fundamental importance in determining its photochemistry and dynamics in addition to its thermal balance, climate, origin and evolution.
Krasnopolsky, Vladimir A
core   +1 more source

Summary of the Second International Planetary Dunes Workshop: Planetary Analogs — Integrating Models, Remote Sensing, and Field Data, Alamosa, Colorado, USA, May 18–21, 2010 [PDF]

open access: yes, 2010
The Second International Planetary Dunes Workshop took place in Alamosa, Colorado, USA from May 18–21, 2010. The workshop brought together researchers from diverse backgrounds to foster discussion and collaboration regarding terrestrial and extra ...
Tirsch, D.   +31 more
core   +1 more source

H2 Chemistry and Protonation in the Dayside Venusian Upper Atmosphere

open access: yesThe Astronomical Journal
Although H _2 is present in low concentrations, it critically controls the structure and composition of planetary upper atmospheres through protonation under solar extreme-ultraviolet and soft X-ray irradiation. Recent studies highlight the importance of
Shiqi Wu   +3 more
doaj   +1 more source

Aseismic Slip Along the Evaporite‐Rich Strike‐Slip Katouna‐Stamna Fault in Greece

open access: yesGeophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Aseismic slip has been observed on many active faults globally, but its controlling mechanisms remain unclear. This study focuses on the NW‐striking, left‐lateral Katouna‐Stamna Fault in Western Greece. We use InSAR surface deformation measurements to confirm the presence of aseismic slip and compare this behavior with structural evidence from
Joel Szrek   +5 more
wiley   +1 more source

Advanced analytical facilities : report of the Planetary Materials and Geochemistry Working Group [PDF]

open access: yes, 1988
The role of advanced analytical facilities; upgrading/replacement of the existing facilities; the relationship of advanced facilities to the present program; and possible facilities are examined.
Planetary Materials and Geochemistry Working Group.
core  

Near‐Field Acoustic and Gravity Wave Modes in the Ionosphere Triggered by Ground Motion and Tsunami During the 2024 Mw7.4 Hualien Earthquake

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 18, 28 September 2026.
Abstract The interaction between the atmosphere and other components of the Earth system, such as the solid Earth and the oceans, remains an open and active area of research. In particular, the dynamic response of the ionosphere to forcing from below, such as earthquakes and tsunamis, is not yet fully understood.
Oluwasegun M. Adebayo   +6 more
wiley   +1 more source

Sporadic E-like Topside Layer Driven by Wind Shear in the Martian Ionosphere

open access: yesThe Astrophysical Journal
Ionospheric plasma density disturbances significantly affect radio wave propagation, impacting communication and planetary exploration. At Earth, sporadic E layers (Es) are commonly observed. They are characterized by thin, high-density plasma structures
Rong Tian   +10 more
doaj   +1 more source

Preface to the Special Issue on "Connection of Solar and Heliospheric Activities with Near-Earth Space Weather: Sun-Earth Connection"

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2013
This special issue of the Terrestrial, Atmospheric and Oceanic Sciences (TAO) presents a small collection of the materials presented at the 2011 International Space Plasma Symposium (ISPS), held at National Cheng-Kung University (NCKU) in Tainan, Taiwan,
Chin-Chun Wu Sunny W. Y. Tam
doaj   +1 more source

Substorm Effects on Chorus Emissions Modulated by ULF Waves

open access: yesGeophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract Although cross‐scale wave‐particle interactions play a critical role in energy transfer in the magnetosphere, the influence of geomagnetic activity on the physical mechanisms involved remains unclear. In this study, we investigate this question by analyzing Van Allen Probes‐A observations of an event occurring on 25 July 2016.
Xing‐Yu Li   +11 more
wiley   +1 more source

New Electron Population Trapped at Low Latitudes Near Jupiter

open access: yesGeophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract We report observations of a low energy (<2 keV), trapped electron population near Jupiter's magnetic equator made by the Jovian Auroral Distributions Experiment (JADE) on Juno. Electron intensity peaks around the location of the minimum magnetic field magnitude along the field line that is connected to Juno.
F. Allegrini   +8 more
wiley   +1 more source

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