Acronym Meanings:
(IPCC is=United Nations Intergovernmental Panel on Climate Change. The IPCC was established in 1988 by the World Meteorological Organization (WMO) and the United Nations Environment Programme (UNEP) to assess scientific, technical and socio-economic information concerning climate change, its potential effects and options for adaptation and mitigation.)
(GCM=general circulation model. It is a type of climate model. It employs a mathematical model of the general circulation of a planetary atmosphere or ocean. These equations are the basis for computer programs used to simulate the Earth's atmosphere or oceans. Atmospheric and oceanic GCMs (AGCM and OGCM) are key components along with sea ice and land-surface components.
GCMs and global climate models are used for weather forecasting, understanding the climate and forecasting climate change.)
(ACC= The Antarctic Circumpolar Current is the most important current in the Southern Ocean, and the only current that flows completely around the globe. The ACC, as it encircles the Antarctic continent, flows eastward through the southern portions of the Atlantic, Indian, and Pacific Oceans.)