Earth surface currents 2005-2007. Computer visualisation showing ocean surface currents around the world during the period from June 2005 to December 2007. The temperature of the waters is colour-coded from blue (cold), through yellow, to red (hot). This visualisation was produced using model output from the joint MIT/JPL project: 'Estimating the Circulation and Climate of the Ocean, Phase II' (ECCO2). ECCO2 uses the MIT (Massachusetts Institute of Technology) general circulation model (MITgcm) to synthesise satellite and in-situ data of the global ocean and sea-ice at resolutions that begin to resolve ocean eddies and other narrow current systems, which transport heat and carbon in the oceans.