Ionosphere

SAPS in the 2013 March 17 Storm Event: Initial Results from 1 the Coupled Magnetosphere-Ionosphere-Thermosphere Model

Figure of LTR simulation results of the ionospheric states
Thursday, October 31, 2019

Subauroral polarization stream (SAPS) are latitudinally narrow flow channels of large westward plasma drifts in the subauroral ionosphere.

Challenges to Understanding the Earth's Ionosphere and Thermosphere

Schematic of plasma and density structures in the IT system
Thursday, October 3, 2019

In this paper we discuss, in a limited way, some of the challenges to advancing our understanding and description of the coupled plasma and neutral gas that make up the ionosphere and thermosphere (I-T).

THE PERSISTENT IONOSPHERIC RESPONSES OVER JAPAN AFTER THE IMPACT OF THE 2011 TOHOKU EARTHQUAKE

Graphic of two-dimensional filtered Global Navigation Satellite System (GNSS) total electron content (TEC) maps
Wednesday, September 11, 2019

Earthquake and tsunami are known to be the source of atmospheric gravity waves that can generate plasma ripples in the space. On March 11, 2011, a magnitude 9.0 earthquake occurred near the east coast of Honshu, Japan, unleashing a savage tsunami to strike offshore of Japan.

Dong Lin

Dr. Dong Lin is a Postdoctoral Fellow in the High Altitude Observatory of the National Center for Atmospheric Research specializing in magnetosphere-ionosphere coupling and space plasma instabilities.

Modulations of Ionospheric Solar & Lunar Migrating Tides during the 2009 Stratospheric Sudden Warming by using Global Ionosphere Specification

Image of graph depicting total electron content (TEC)
Wednesday, May 29, 2019

Large‐scale meteorological disturbances like sudden stratospheric warmings (SSWs) are often of interest for the investigation of a variety of mechanisms and processes that link different regions of the Earth's atmosphere across a wide range of altitudes and latitudes.

Kevin Pham

Dr. Kevin Pham is a Postdoctoral Fellow in the High Altitude Observatory of the National Center for Atmospheric Research specializing in the magnetosphere and radiation belt precipitation.

Jing Liu

Jing Liu is a project scientist in the High Altitude Observatory at NCAR.

Long-lasting response of the global thermosphere and ionosphere to the 21 August 2017 solar eclipse

Long-lasting response of the global thermosphere and ionosphere
Sunday, August 5, 2018

Explains Wenbin Wang and others, previous studies have been devoted to examining the ionosphere and thermosphere response during the solar eclipse, but the post-eclipse response of the global ionosphere and thermosphere has not previously been well quantified.

Global responses of the coupled thermosphere and ionosphere system to the August 2017 great American solar eclipse

Global maps
Wednesday, August 1, 2018

It is commonly believed that solar eclipses have a great impact on the ionosphere-thermosphere (I-T) system within the eclipse shadow, but little attention has been paid to the global responses to them.

Tarique Siddiqui

Tarique Siddiqui is a postdoctoral researcher at the High Altitude Observatory, National Center for Atmospheric Research.

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