Results 51 to 60 of about 77,336 (163)
Solar wind maintenance of the nighttime Venus ionosphere [PDF]
, 1972 An attempt is made to establish an ionization source capable of maintaining the nighttime Venus ionosphere. The corpuscular ionization and heating caused by the penetration of solar wind plasma into the nightside ionosphere was suggested as a possible ...
Hartle, R. E.
core
Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.Abstract We present the first coordinated study of nighttime mesosphere‐ionosphere coupling over the continental United States (CONUS) from January through November 2024 using NASA Atmospheric Waves Experiment (AWE) airglow measurements near 87 km and GNSS Total Electron Content observations near 300 km.
Sreelekshmi Radhakrishnan Girijakumary +1 more
wiley +1 more source
Rocket radio measurement of electron density in the nighttime ionosphere [PDF]
, 1979 One experimental technique based on the Faraday rotation effect of radio waves is presented for measuring electron density in the nighttime ionosphere at midlatitudes.
Smith, L. G., Gilchrist, B. E.
core
On the coupling of layer instabilities in the nighttime midlatitude ionosphere [PDF]
Journal of Geophysical Research: Space Physics, 2006 There are two plasma‐structuring mechanisms that are known to operate at night in the midlatitude ionosphere, the Perkins instability (Perkins, 1973) in the F region, and the more recently discovered sporadic‐E layer (EsL) instability (Cosgrove and Tsunoda, 2002) in the E region.
openaire +1 more source
A Method for Imaging Energetic Particle Precipitation With Subionospheric VLF Signals
Earth and Space Science, 2023 Energetic particle precipitation (EPP) is a key loss mechanism for radiation belt particles. Quantification of the precipitation loss rate feeds into the electron lifetimes used by radiation belt models and is needed to improve understanding of radiation
Forrest Gasdia, Robert A. Marshall
doaj +1 more source
Enhancement of the Nighttime Ocean Cool Skin Effect by Natural Surfactants
Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.Abstract The ocean interface brightness temperature is sensitive to the biologic activity reflected by the chlorophyll‐a concentration (Chla) in the upper layers of the oceans. This is shown using sea surface skin temperatures Tskin retrieved from spectra recorded by the Infrared Atmospheric Sounder Interferometer and collocated measurements of bulk ...
Hugo Bellenger +2 more
wiley +1 more source
Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.Abstract Metastable helium (He∗ ${\text{He}}^{\ast }$) in the thermosphere emits at 1,083 nm and provides a powerful diagnostic of thermospheric composition, solar radiation, and transport. Its detection remains challenging because of its extremely low density and high‐altitude.
Zhenwei Liu +12 more
wiley +1 more source
Quasi‐Homologous Solar Flares and Impacts on Thermospheric Density and Satellite Orbital Drag
Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.Abstract Quasi‐Homologous Flaring (QHF) activity from active regions on the Sun releases intense electromagnetic radiation in recurrent bursts over extended periods. In this letter, we present the effects of recurrent impulsive extreme ultraviolet (EUV) heating on thermospheric neutral density and the resulting atmospheric drag on satellites based on ...
S. Tulasi Ram +8 more
wiley +1 more source
Day to Day Longitudinal Variability of the Nighttime Low Latitude Terrestrial Ionosphere [PDF]
, 2007 The Earth’s ionosphere is the region of upper atmosphere that is a partially ionized gas. It extends from the mesosphere and through the thermosphere to altitudes ~1000 km where it ultimately merges with the magnetosphere.
McDonald, Sarah
core +1 more source
Tidal Variability in the Lower Thermosphere: Relative Importance of ENSO, QBO, PJO, MJO, and Lyα
Journal of Geophysical Research: Atmospheres, Volume 131, Issue 20, 28 October 2026.Abstract Atmospheric tides in the lower thermosphere play an important role in regulating upper‐atmospheric conditions relevant to space weather. However, their spatial and temporal variability remains poorly understood, apart from seasonal variations. Previous studies have shown that tides can be influenced by meteorological and solar conditions. This
Yosuke Yamazaki +4 more
wiley +1 more source