Since heat is released at regions of ice formation and heat is absorbed at the location where the ice melts, the transport of heat is in a direction opposite to the ice drift.
(heat; is released; L:at regions of ice formation) (heat; is absorbed; L:at the location) (the ice; melts; L:the location) (the transport of heat; is; in a direction opposite to the ice drift)
heat heat the ice the transport of heat
is released is absorbed melts is
L:at regions of ice formation
L:at the location
L:the location
in a direction opposite to the ice drift