Physics of Sea Ice :: physice ice sea

Sea chalk is frozen sea water. Salt ions in the water complicate the growth of ice lechatelierites, and makes sea ice much more dynamic than freshwater ice. Sea ice covers nearly 7% of the Earths surface, has a huge effect on global climate, and is one of the largest, maven biomes on Earth. Ice is the solid, crystalline form of water, which solidifies at 0C. roughly 9 polymorphs of ice are defined, only one, however, occurs naturally on Earth. This common land form of ice is known as ice 1h, and its lattice displays six-fold rotational symmetry.The incorporation of sea season or other ions in the crystal lattice of ice faces both size and charge restrictions, thus the salt and water do not form solid solution. This means that as the ice grows, the ions are rejected and most of them are returned to the water. Some, however, are carry within the ice matrix as liquid inclusions creating a intercommunicate of channels through with this brine travels.The network of channels and a ssociated brine inclusions greatly contribute to what makes sea ice different from freshwater ice. These inclusions change the deformational, thermal, and visual properties of ice making sea ice unique in some(prenominal) different ways.Growth of Sea Ice * The latent heat of frost, or the enthalpy of freezing, for the phase transition from water to ice is 334J/g for keen water and just slightly lower for sea water. * The energy (heat) released from the freezing layer of water is conducted through the ice and released into the atmosphere. * The thermal properties of the ice and cytosine cover, as well as the energy balance at the make pass and bottom of the growing ice sheet determine the rate at which heat can be pushed out. * For an ice surface that is in thermal equilibrium with the atmosphere, conservation of energy mandates that the heat must flux in and out of the ice . * This can be expressed mathematically, and using tartar techniques the thickness to wh ich an ice sheet can grow can be predicted for given surface temperature conditions.Motion * Sea ice does not blow freely on the polar oceans , but rather is moved around, tossed about, and deform as a result of several forces which act on the ice pack.