On the pole side of the trade wind belt，there is an area of high pressure with weak pressure gradients and light，variable winds. This area is called the（）.

The currents are（）mosoonal origin．

The direction of the southeast trade winds is a result of the（）.

Low pressure disturbances，which travel along the intertropical convergence zone，are called（）.

Radiation fog（）.

In the Northern Hemisphere，your vessel is believed to be in the direct path of a hurricane，and plenty of sea room is available. The best course of action is to bring the wind on the（）.

The apparent wind can be zero when the true wind is from（）.

In a tropical cyclone，in the Northern Hemisphere，a vessel hove to with the wind shifting counterclockwise is（）.

Cold water flowing southward through the western part of the Bering Strait between Alaska and Siberia is joined by water circulating counterclockwise in the Bering Sea to form the（）.

In the Northern Hemisphere the major ocean currents tend to flow（）.