TEMPERATE ZONE

Either of the two zones between the frigid and torrid zones, called the north temperate zone and the south temperate zone.

Related Terms

GULF STREAM SYSTEM

A system of ocean currents comprised of the Florida Current, the Gulf Stream, and the North Atlantic Current.

gulf_stream_system system ocean gulf north

An ocean current flowing northwestward along the northeast coast of South America. The Guiana Current is an extension of the Atlantic South Equatorial Current, which crosses the equator and approaches the coast of South America. Eventually, it is joined by part of the Atlantic North Equatorial Current and becomes, successively, the CARIBBEAN ISLANDS, and the FLORIDA CURRENT. Also called NORTH BRAZIL CURRENT.

guiana_current current coast ocean atlantic_north_equatorial_current equator equatorial north ocean_current

GRID MAGNETIC ANGLE

Angular difference in direction between grid north and magnetic north. It is measured east or west from grid north. Grid magnetic angle is sometimes called GRID VARIATION or GRIVATION.

grid_magnetic_angle difference variation angle angular direction grid grid_north magnetic north west

GRID TRACK

The direction of the track relative to grid north

grid_track relative direction grid grid_north north track

GUINEA CURRENT

A North Atlantic Ocean current flowing eastward along the south coast of northwest Africa into the Gulf of Guinea. The Guinea Current is the continuation of the Atlantic Equatorial Countercurrent augmented by the eastern branch of the Canary Current.

guinea_current current coast ocean branch countercurrent equatorial equatorial_countercurrent gulf north ocean_current

GRID NORTH

1. An arbitrary reference direction used with grid navigation. The direction of the 180th geographical meridian from the north pole is used almost universally as grid north. 2. The northerly or zero direction indicated by the grid datum of directional reference.

grid_north datum north_pole direction grid meridian north pole reference

HORSE LATITUDES

The regions of calms and variable winds coinciding with the subtropical high pressure belts on the poleward sides of the trade winds. The expression is generally applied only to the northern of these two regions in the North Atlantic Ocean, or to the portion of it near Bermuda.

horse_latitudes pressure high high_pressure north variable

IRMINGER CURRENT

A North Atlantic Ocean current, one of the terminal branches of the Gulf Stream System (part of the northern branch of the North Atlantic Current); it flows toward the west off the south- west coast of Iceland. A small portion of the water of the Irminger Current bends around the west coast of Iceland but the greater amount turns south and becomes more or less mixed with the water of the East Greenland Current.

irminger_current water current system terminal coast ocean branch gulf gulf_stream_system north stream west

LATITUDE

The distance north or south of the equator measured and expressed in degrees.

latitude distance equator north

TRUE NORTH

The direction of the geographical north pole.

true_north north_pole direction north