La Nina, tell me.

Answer the first one first, the north and south equator? Warm current is controlled by trade winds all the year round. The northern hemisphere is a northeast trade wind, so the water flows westward all the year round to form a north equatorial warm current, which is controlled by the southeast trade wind in the southern hemisphere. These two warm currents buffer back when they meet the mainland, forming an equatorial countercurrent.

The second problem is the wind belt, which is influenced by the westerly belt all the year round. The northern hemisphere turns to the right to form a southwest wind, and due to the high temperature of seawater at low latitudes, a warm current is formed. West wind drift belongs to the southern hemisphere, because there are few continental barriers in the westerly belt of the southern hemisphere, and ocean currents will not be disconnected, which will lead to circulation.

Knowledge points: (If you plan to take a geography exam in the future, it is recommended to write down the ocean current map) 1, the function, causes and classification of ocean current (according to the nature of cold current and warm current, according to the causes of compensation current and wind current) 2, the impact on coastal climate 3, the four major fishing grounds in the world (Peru fishing ground, Beihai fishing ground, Hokkaido fishing ground and Newfoundland fishing ground) 4, the Indian Ocean current and west wind drift's special case 5, El Ni? o and La Ni? a.

Give you a summary of the ocean current map (except the Indian Ocean) 1. In the northern hemisphere, a clockwise circulation is formed around the subtropical high (counterclockwise in the southern hemisphere). The east coast of the mainland is a warm current, and the west coast of the mainland is a cold current centered on the subtropical low. 2. In the northern hemisphere, a cold current is formed counterclockwise (clockwise in the southern hemisphere) on the east coast of the mainland and a warm current (west wind drift cold current in the southern hemisphere) on the west coast of the Indian Ocean. 3.