GUVI

Global UltraViolet Imager

GUVI Biblio



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Found 3 entries in the Bibliography.


Showing entries from 1 through 3


2021

Quantifying the Impact of Dynamic Storm-Time Exospheric Density on Plasmaspheric Refilling

As soon as the outer plasmasphere gets eroded during geomagnetic storms, the greatly depleted plasmasphere is replenished by cold, dense plasma from the ionosphere. A strong correlation has been revealed between plasmaspheric refilling rates and ambient densities in the topside ionosphere and exosphere, particularly that of atomic hydrogen (H). Although measurements of H airglow emission at plasmaspheric altitudes exhibit storm-time response, temporally static distributions have typically been assumed in the H density in pla ...

Waldrop, Lara; Cucho-Padin, Gonzalo; site, this; Maruyama, Naomi; site, this;

Published by: Earth and Space Science Open Archive ESSOAr      Published on: jan

YEAR: 2021     DOI: 10.1002/essoar.10505771.1

Atmospheric Sciences; Atmospheric Sciences / Magnetospheric Particles

Understanding the role of exospheric density in the ring current recovery rate

Atomic Hydrogen (H) is the most abundant constituent of the terrestrial exosphere. Its charge exchange interaction with ring current ions (H+ and O+) serves to dissipate magnetospheric energy during geomagnetic storms, resulting in the generation of energetic neutral atoms (ENAs). Determination of ring current ion distributions through modeling depends critically on the specification of the exospheric H density distribution. Furthermore, theoretical studies have demonstrated that ring current recovery rate after the storm on ...

Cucho-Padin, Gonzalo; site, this; Ferradas, Cristian; Waldrop, Lara; Fok, Mei-Ching; site, this;

Published by: Earth and Space Science Open Archive ESSOAr      Published on: jan

YEAR: 2021     DOI: 10.1002/essoar.10505770.1

Atmospheric Sciences; Atmospheric Sciences / Magnetospheric Particles

Ultraviolet Observations and a Theory of STEVE

A search for ultraviolet (UV) emissions in satellite data during known STEVE (Strong Thermal Emission Velocity Enhancement) events found that simultaneous subauroral UV arcs (SUA) were usually, but not always present in the Southern Hemisphere despite coverage of the conjugate STEVE location. From 2005 to 2020 a systematic search for SUA found over 100 cases with a mean Magnetic Local Time (MLT) of 316°, standard deviation 13° and hemispheric asymmetry. Frequently coincident continuum UV and visible emissions, upwelling pl ...

Bennett, Charles; site, this;

Published by: Earth and Space Science Open Archive ESSOAr      Published on: apr

YEAR: 2021     DOI: 10.1002/essoar.10504577.6

Atmospheric Sciences; Atmospheric Sciences / Airglow; Atmospheric Sciences / Aurora; Atmospheric Sciences / Ionosphere; Atmospheric Sciences / Magnetospheric Particles; Atmospheric Sciences / Precipitation Physics; Atmospheric Sciences / Solar Wind



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