![]() ![]() ![]() “Depending on the nature of the perturbation (or perturbations), the gravity waves generated might have different wavelengths.” Huang suggested the clouds could also be shaped by gravity waves, but on a much larger scale. “Disturbances, which can occur when air encounters small ridges and valleys, will produce wave textures in the clouds that look like ripples on a pond.” “According to temperature profile data, the atmosphere on the morning of July 5 was very stable and well-stratified, with a sharp temperature inversion at the top of the atmospheric boundary layer,” explained NASA. Yi Huang, an atmospheric scientist at the University of Melbourne, noted that gravity wave cloud fields are quite common in a stable atmosphere. “However, meteorological observations from that time offer clues into what may have been going on.” “Several experts in cloud dynamics who looked at the image found the patterns to be both odd and fascinating, and they could not say with certainty what caused the complex formations based on the image alone,” said NASA. The stunning clouds stretched for more than 600 miles over Western Australia and the Northern Territory. ![]() Today’s Image of the Day from NASA Earth Observatory features a fascinating display of clouds that appeared over Australia on July 5, 2023. ![]()
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