GOLD reveals unexpected changes in Earth’s nighttime ionosphere This October 15, 2018, GOLD image of daytime airglow clearly shows the equatorial ionization anomaly (EIA) as two arcs on either side of the magnetic equator, which extend across the nightside of the disk. The colors represent an increase in oxygen emissions from blue to red,... Read More August 13, 2019 Tom Mason Permalink News AGU, EIA, Equatorial Ionization Anomaly, Geophysical Research Letters, GOLD, GPS, GRL, NASA, NASA Goddard, SES-14 Comments are closed 6302 0 0