A polar ice cap or polar ice sheet is a high-latitude region of a planet or moon Seasonal variations of the ice caps will take place due to varied Every spring brings violent eruptions to the south polar ice cap of Mars, according to researchers interpreting new observations by NASA's Mars Odyssey orbiter.Ice caps are not constrained by topographical features (i.e., they will lie over Sensitivity of Vatnajkull ice cap hydrology and dynamics to climate warming Ice Cap Melter and Veiwer! Shows drastic melting of Arctic polar sea ice caps form 1979 to 2003. inveractively melt polar ice caps over a twenty five year period. Polar Ice Caps. Polar ice spreads and retreats with the changing of the seasons, carving out Spying Changes in Mars' South Polar Cap 13 July 2005