Sierra Wave
Sierra Wave bụ ụdị ikuku nké ifufe na-ebuli ugwu Sierra Nevada nke California. A maara dị ka ebili mmiri lee, Sierra Waves na-apụta ka ifufe kụrụ Sierra Nevada ma na-amanye ya ịrị elu, na-eme ka anwụrụ mmiri na-agbakọta ka ọ na-ajụ oyi ma na-emepụta ígwé ojii lenticular n'akụkụ leeward nke ugwu ahụ. Ígwé ojii ndị a nwèrè ike ịnọ otu ébè ruo ọtụtụ awa. Ọdịdị nke Sierra Wave dabere na ọtụtụ ihe, gụnyere ọsọ na ntụziaka nke ifufe, usoro ifufe nke leeward, na ikuku mmiri. Ébé ọ bụ na Sierra Waves na-adabere n'ọtụtụ mgbanwe, ọdịdị ha bụ ihe a na-apụghị ịkọwapụta. A chọpụtara ma mụọ ya na mbụ n'ihe dị ka afọ 1950, ndị na-anya ụgbọelu na-eji ha eme ihe iji nweta elu ma gbasaa ụgbọ elu ha.