Karakum Desert, TurkmenistanDrought-resistant plants growing in the Repetek Preserve in the southeastern Karakum Desert, Turkmenistan.(more) 3 of 3 deciduous treesDeciduous forest in fall coloration, Wasatch Mountains, Utah.(more) The atmosphere is influenced by and linked to other features of Earth...
so the development of large Rossby waves is less frequent than in the Northern Hemisphere. As a result the Antarctic polar vortex is more resistant than the Arctic polar vortex to incursions made by outside air masses, and it tends to break up only during the onset of spring. Cold-air ou...