 One of the surprises of the impacts was the small amount of water revealed compared to prior predictions . Before the impact , models of Jupiter 's atmosphere had indicated that the break @-@ up of the largest fragments would occur at atmospheric pressures of anywhere from 30 kilopascals to a few tens of megapascals ( from 0 @.@ 3 to a few hundred bar ) , with some predictions that the comet would penetrate a layer of water and create a bluish shroud over that region of Jupiter . 
