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Geomagnetic activity

Sreelakshmi Jayaraman

Submitted by whawkins on May 17, 2022 - 3:18pm

Sreelakshmi Jayaraman is a Ph.D. student at the Indian Institute of Geomagnetism, India, under the supervision of Dr. Geeta Vichare. She has been a visiting scholar at the High Altitude Observatory of the National Center for Atmospheric Research since 2020 in collaboration with Dr. Astrid Maute.

Investigation of a neutral ‘tongue’ observed by GOLD during the geomagnetic storm on May 11,2019

Latitude-longitude distribution of percentage difference
Tuesday, May 4, 2021

The National Aeronautics and Space Administration Global-scale observations of the Limb and Disk (GOLD) mission observed a unique structure of thermospheric column density ratio of O to N2 (∑O/N2) during a geomagnetic storm on day of year (DOY) 130 (May 10) to DOY 132 in 2019.

The 2‐D Evolution of Thermospheric ∑O/N2 Response to Weak Geomagnetic Activity During Solar‐Minimum Observed by GOLD

Graphic image 2D evolution of thermospheric ∑O/N2 response
Wednesday, September 16, 2020

We conduct observational and modeling studies of thermospheric composition responses to weak geomagnetic activity (non-geomagnetic storms). We found that the thermospheric O and N 2 column density ratio (∑O/N 2 ) in part of the Northern Hemisphere measured by

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The National Center for Atmospheric Research is sponsored by the National Science Foundation. Any opinions, findings and conclusions or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.