Thermosphere Temperature Differences April 2023 (IMAGE)

NASA/Goddard Space Flight Center

Thermosphere Temperature Differences April 2023

Caption

Before, during, and after the severe geomagnetic storm in April 2023, NASA’s GOLD (Global-scale Observations of Limb and Disk) spacecraft measured the temperature in Earth’s middle thermosphere across a wide area, something other spacecraft cannot do. This map shows the difference in temperature between April 17 (DOY 107) and April 25 (DOY 115), with red indicating warmer temperatures and blue showing cooler. It reveals that the middle thermosphere was cooler on April 25, the day after the geomagnetic storm ended, than it was on April 17, before the storm began.

Credit

Xuguang Cai (University of Colorado, Boulder)

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