In this diagram, the horizontal line represents the Earth's surface, and the vertical arrows represent the direction of motion of an object. The Coriolis force is a deflection force that acts on moving objects on the Earth's surface due to the rotation of the Earth.
When an object moves in a straight line (represented by the horizontal arrows), it appears to be deflected to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. This deflection is caused by the rotation of the Earth underneath the moving object.
The Coriolis force is responsible for the rotation of large-scale weather systems, such as cyclones and anticyclones, and it also affects the movement of objects like projectiles and ocean currents.
Please note that this diagram is a simplified representation of the Coriolis force and does not capture all the complexities associated with it.