Transient decreases of Earth's far-ultraviolet dayglow

Details Transient decreases of Earth's far-ultraviolet dayglow Transient decreases of Earth's far-ultraviolet dayglow

Oct 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997georl..24.2423f&link_type=abstract

Geophysical Research Letters, Volume 24, Issue 19, p. 2423-2426

Physics

20

Atmospheric Composition And Structure: Airglow And Aurora, Atmospheric Composition And Structure: Middle Atmosphere-Composition And Chemistry, Planetology: Comets And Small Bodies: Physics And Chemistry Of Materials, Planetology: Comets And Small Bodies: Surfaces And Interiors

Scientific paper

Ten years ago transient decreases in Earth's far-ultraviolet dayglow were reported for global images acquired with the high-altitude, polar-orbiting spacecraft Dynamics Explorer 1. These decreases were observed primarily in the atomic oxygen emissions at 130.4 nm. The diameters of these dark spots, or ``atmospheric holes'', were in the range of 50 to 100 km. Recently a sophisticated camera for imaging Earth's far-ultraviolet dayglow, with far greater spatial and temporal resolutions than its predecessor, was launched with the Polar spacecraft. The images from this spacecraft provide irrefutable evidence that these atmospheric holes are a geophysical phenomenon.

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