SA036-0008
Extracting thermosphere/ionosphere parameters from simultaneous GOLD and Ground-Based All-sky Imagers Observations

Wednesday, 16 December 2020
Poster
Carlos R. Martinis1, Robert Edward Daniell Jr2, Jessica Norrell1, Richard Eastes3, Deepak Kumar Karan4, Cristiano M. Wrasse5, Cosme Alexandre Oliveira Barros Figueiredo5, Diego Barros5 and Hisao Takahashi5, (1)Boston University, Center for Space Physics, Boston, MA, United States, (2)Ionospheric Physics, Stoughton, MA, United States, (3)University of Colorado, Laboratory for Atmospheric and Space Physics, Boulder, CO, United States, (4)University of Colorado at Boulder, Laboratory for Atmospheric and Space Physics, Boulder, United States, (5)National Institute for Space Research (INPE), São José dos Campos, Brazil
Abstract:
The Global-scale Observations of the Limb and Disk (GOLD) mission, launched in 2018, aims to investigate the low latitude ionosphere from a geostationary orbit at 47.5o W. It uses two identical spectrometers measuring the wavelength range from 134.0 to 163.0 nm. Nighttime measurements at 135.6 nm are used to investigate the equatorial ionization anomaly (EIA) and plasma bubbles. The southern crest of the EIA is also sampled in western South America by El Leoncito all-sky imager and a digital ionosonde. The ASI measures airglow emissions in 630.0 nm and 777.4 nm. A background filter is used to process the data and provide calibrated values expressed in Rayleighs. When combined with the GOLD measurements, information about thermosphere/ionosphere parameters can be extracted. The ionosonde data are used to validate the results. In addition, the characteristics and zonal velocity of plasma bubbles, observed simultaneously by GOLD and by El Leoncito (70o W) and Cariri (36o W) all-sky imagers, are investigated.
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