Global-scale observations of the limb and disk (GOLD)

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

Comparison of GOLD nighttime measurements with total electron content: preliminary results

Graphic image depicting the comparison between the GOLD map and TEC2 map
Friday, August 28, 2020

The National Aeronautics and Space Administration (NASA) Global‐scale Observations of the Limb and Disk (GOLD) has been imaging the thermosphere and ionosphere since October 2018. It provides continuous measurements over a large area from its geostationary orbit.

Global-scale Measurements of the Limb and Disk (GOLD) Mission Implementation: Instrument Design and Early Flight Performance

Schematic of the sectional view of a GOLD spectroscopic imaging channel
Tuesday, May 12, 2020

The Global-scale Observations of the Limb and Disk (GOLD) is a NASA mission of opportunity designed to study how the Earth’s ionosphere-thermosphere system responds to geomagnetic storms, solar radiation and upward propagating tides on time scales as short as 30 minutes.

Thermospheric composition O/N2 response to an altered meridional mean circulation during Sudden Stratospheric Warmings observed by GOLD

Graphic image of GOLD O/N2 ratios
Wednesday, February 12, 2020

GOLD measurements provide the first observational proof of model predictions that the break up of the stratospheric polar vortex changes the composition of the thermosphere.

Subscribe to RSS - Global-scale observations of the limb and disk (GOLD)