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Ocean gyre – Any large system of circulating ocean surface currents; Physical oceanography – Study of physical conditions and processes within the ocean; Subsurface ocean current – Oceanic currents that flow beneath surface currents; Thermohaline circulation – Part of large-scale ocean circulation
Ocean general circulation models (OGCMs) are a particular kind of general circulation model to describe physical and thermodynamical processes in oceans. The oceanic general circulation is defined as the horizontal space scale and time scale larger than mesoscale (of order 100 km and 6 months).
Integrated ocean modeling systems often use data from buoys and weather stations for atmospheric forcing and boundary conditions. Two examples of integrated ocean modeling systems are: COAWST: Coupled Ocean Atmosphere Wave Sediment Transport Modeling System [6] (uses ROMS as its ocean circulation component). [7]
AMOC in relation to the global thermohaline circulation . The Atlantic meridional overturning circulation (AMOC) is the main current system in the Atlantic Ocean [1]: 2238 and is also part of the global thermohaline circulation, which connects the world's oceans with a single "conveyor belt" of continuous water exchange. [18]
Thermohaline circulation (THC) is a part of the large-scale ocean circulation that is driven by global density gradients created by surface heat and freshwater fluxes. [ 1 ] [ 2 ] The adjective thermohaline derives from thermo- referring to temperature and -haline referring to salt content , factors which together determine the density of sea ...
Ocean circulation re-distributes the heat and water-resources, therefore determines the regional climate. For example, the western branches of the subtropical gyres flow from the lower latitudes towards higher latitudes, bringing relatively warm and moist air to the adjacent land, contributing to a mild and wet climate (e.g., East China, Japan).
Instead ocean deep water is formed in polar regions where cold salty waters sink in fairly restricted areas. This is the beginning of the thermohaline circulation. Oceanic currents are largely driven by the surface wind stress; hence the large-scale atmospheric circulation is important to understanding the ocean circulation. The Hadley ...
However, ocean currents also flow thousands of meters below the surface. These deep-ocean currents are driven by differences in the water's density, which is controlled by temperature (thermo) and salinity (haline). This process is known as thermohaline circulation. In the Earth's polar regions ocean water gets very cold, forming sea ice.