Planimetric map
thematic
That type of map is called a thematic.
Planimetric map
That type of map is called a thematic.
thematic
A current map, or ocean current map, would be used to depict the speed and direction of ocean currents. These maps illustrate the movement of surface ocean water across regions and are important for understanding ocean circulation patterns.
thematic
thematic
Speed in a given direction is velocity.
Velocity is a vector quantity, i.e. it consists of two measures, one is speed, the other is direction. If the speed remains constant then a change in direction would alter the velocity. (you didn't list any examples)
Changing an object's direction without affecting speed requires a force that acts perpendicular to the object's velocity, such as centripetal force or gravitational force. This force causes the object to change direction while continuing at a constant speed. Other forces acting parallel to the object's velocity can change its speed as well as its direction.
thematic