Monsoon drift
A monsoon drift is the effect of the monsoon winds on the surface currents of a sea or ocean .
Every wind that moves across a water surface exerts pressure on the water, which influences its movement in the form of a corkscrew current and sets the upper layers of water in motion. Due to the deflection by the Coriolis force , however, the resulting water flow does not move in the direction of the wind itself, but is deflected by around 90 ° . As a result, winds such as the trade winds , but also the monsoon winds, influence the surface currents and contribute to the formation of the characteristic ocean currents . However, not only the surface currents are affected by this, but also the deeper mixing properties of the oceans, which is an important factor for all marine life in this area of influence due to increased nutrient input and thus also indirectly influences the fish industries of the respective countries. This aspect is most evident in the Indian Ocean, where a distinction is made between a southwest monsoon drift (flow direction west-east) during the summer monsoon and a northeast monsoon drift (flow direction east-west) during the winter monsoon.