▁un stable ▁to ▁vertical ▁mot ions , ▁and ▁con ve ction ▁is ▁likely . ▁Situ ations ▁in ▁which ▁the ▁equivalent ▁potential ▁temperature ▁decre ases ▁with ▁height , ▁indicating ▁inst ability ▁in ▁s atur ated ▁air , ▁are ▁quite ▁common . ▁ ▁See ▁also ▁Meteor ology ▁Mo ist ▁static ▁energy ▁Pot ential ▁temperature ▁We ather ▁forec ast ing ▁ ▁Bibli ography ▁ ▁M ▁K ▁Y au ▁and ▁R . R . ▁Rog ers , ▁Short ▁Cour se ▁in ▁Cloud ▁Physics , ▁Third ▁Edition , ▁published ▁by ▁But ter worth - He in emann , ▁January ▁ 1 , ▁ 1 9 8 9 , ▁ 3 0 4 ▁pages . ▁ ▁References ▁▁ ▁Category : At mos pher ic ▁therm od ynam ics ▁Category : Equ ivalent ▁units <0x0A> </s> ▁" S ex ▁Drive " ▁is ▁a ▁ 1 9 9 3 ▁single ▁by ▁Grace ▁Jones . ▁ ▁Background ▁" S ex ▁Drive " ▁is ▁a ▁cover ▁version ▁of ▁the ▁She ep ▁on ▁Dru gs ▁ 1 9 9 2 ▁song ▁" Track ▁X ". ▁It ▁was ▁written ▁by ▁band ▁members ▁themselves ▁and ▁produced ▁for ▁Grace ▁by ▁Mark ▁P ist el ▁and ▁Philip ▁Ste ir . ▁It ▁was ▁released ▁on ▁ 2 3 ▁September ▁ 1 9 9 3 ▁by ▁Island ▁Records ▁with ▁a ▁cover ▁of ▁the ▁Cons olid ated ▁song ▁" Typ ical ▁Male " ▁as ▁the ▁B - side . ▁The ▁single ▁met ▁with ▁considerable ▁success , ▁to pping ▁the ▁US ▁dance ▁chart . ▁ ▁Both ▁songs ▁were ▁to ▁be ▁featured ▁on