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View article: Impacts of Storm Electric Fields and Traveling Atmospheric Disturbances Over the Americas During 23–24 April 2023 Geomagnetic Storm: Experimental Analysis
Impacts of Storm Electric Fields and Traveling Atmospheric Disturbances Over the Americas During 23–24 April 2023 Geomagnetic Storm: Experimental Analysis Open
The paper presents the effects of the storm‐time prompt penetration electric fields (PPEF) and traveling atmospheric disturbances (TADs) on the total electron content (TEC), foF2 and hmF2 in the American sector (north and south) during the…
View article: Non‐Migrating Structures in the Northern Midlatitude Thermosphere During December Solstice Using ICON/MIGHTI and FPI Observations
Non‐Migrating Structures in the Northern Midlatitude Thermosphere During December Solstice Using ICON/MIGHTI and FPI Observations Open
Midlatitude thermospheric wind observations from the Michelson Interferometer for Global High‐resolution Thermospheric Imaging on board the Ionospheric Connections Explorer (ICON/MIGHTI) and from the ground‐based Boulder, Urbana, Millstone…
View article: Advancing our understanding of ionospheric structure and variability via TEC measurements from buoys
Advancing our understanding of ionospheric structure and variability via TEC measurements from buoys Open
Whitepaper #297 in the Decadal Survey for Solar and Space Physics (Heliophysics) 2024-2033. Main topics: space weather applications; basic research. Additional topics: space weather research/operations/research loop; space weather research…
View article: Using Far-Infrared Emissions to Understand the Thermosphere
Using Far-Infrared Emissions to Understand the Thermosphere Open
Whitepaper #017 in the Decadal Survey for Solar and Space Physics (Heliophysics) 2024-2033. Main topics: basic research; space weather applications. Additional topics: planetary ionospheres / upper atmospheres; user-need-driven basic space…
View article: On the exploration of mesospheric and thermospheric dynamics through a large ground-based instrument network
On the exploration of mesospheric and thermospheric dynamics through a large ground-based instrument network Open
Whitepaper #014 in the Decadal Survey for Solar and Space Physics (Heliophysics) 2024-2033. Main topics: basic research; infrastructure/workforce/other programmatic. Additional topics: ground-based missions/projects; other programmatic; us…
View article: Evaluating the Impact of Commercial Radio Occultation Measurements of the Ionosphere with Data Assimilation and Observing System Simulation Experiments
Evaluating the Impact of Commercial Radio Occultation Measurements of the Ionosphere with Data Assimilation and Observing System Simulation Experiments Open
Global Navigation Satellite System (GNSS) Radio Occultation (RO) is a remote sensing technique that uses GNSS signals of opportunity to estimate parameters of the Earth's atmosphere.For example, a multi-frequency GNSS receiver placed on a …
View article: The Midlatitude Thermospheric Dynamics From an Interhemispheric Perspective
The Midlatitude Thermospheric Dynamics From an Interhemispheric Perspective Open
Using Fabry‐Perot interferometers at five midlatitude stations (Boulder, Palmer, Millstone Hill, Mount John, and Kelan) in both hemispheres, we examine the interhemispheric and seasonal variations of midlatitude thermospheric dynamics. We …
View article: The Ionospheric Impact of an ICME‐Driven Sheath Region Over Indian and American Sectors in the Absence of a Typical Geomagnetic Storm
The Ionospheric Impact of an ICME‐Driven Sheath Region Over Indian and American Sectors in the Absence of a Typical Geomagnetic Storm Open
On 13 April 2013, the ACE spacecraft detected arrival of an interplanetary shock at 2250 UT, which is followed by the passage of the sheath region of an interplanetary coronal mass ejection (ICME) for a prolonged (18‐hr) period. The polari…
View article: Atmospheric scattering effects on ground‐based measurements of thermospheric vertical wind, horizontal wind, and temperature
Atmospheric scattering effects on ground‐based measurements of thermospheric vertical wind, horizontal wind, and temperature Open
Ground‐based Fabry‐Perot interferometers routinely observe large vertical winds in the thermosphere, sometimes reaching over 100 m/s. These observations, which use the Doppler shift of the 630.0 nm airglow emission to estimate the wind, ha…
View article: Issue Information
Issue Information Open
No abstract is available for this article.
View article: LiCHI – Liquid Crystal Hyperspectral Imager for simultaneous multispectral imaging in aeronomy
LiCHI – Liquid Crystal Hyperspectral Imager for simultaneous multispectral imaging in aeronomy Open
A four channel hyperspectral imager using Liquid Crystal Fabry-Perot (LCFP) etalons has been built and tested. This imager is capable of making measurements simultaneously in four wavelength ranges in the visible spectrum. The instrument w…
View article: Thermospheric poleward wind surge at midlatitudes during great storm intervals
Thermospheric poleward wind surge at midlatitudes during great storm intervals Open
We report a significant poleward surge in thermospheric winds at subauroral and midlatitudes following the 17–18 March 2015 great geomagnetic storm. This premidnight surge is preceded by strong westward winds. These disturbances were obser…
View article: An update to the Horizontal Wind Model (HWM): The quiet time thermosphere
An update to the Horizontal Wind Model (HWM): The quiet time thermosphere Open
The Horizontal Wind Model (HWM) has been updated in the thermosphere with new observations and formulation changes. These new data are ground‐based 630 nm Fabry‐Perot Interferometer (FPI) measurements in the equatorial and polar regions, a…