For the Safety Navigation In Japanese Coastal Waters page 5/120

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- 1 -PART 1 WEATHER AND SEA CONDITIONS IN SEA AREAS AROUND JAPANThe sea areas along the coast of Japan are subject to great changes in sea as well as weathercon....

- 1 -PART 1 WEATHER AND SEA CONDITIONS IN SEA AREAS AROUND JAPANThe sea areas along the coast of Japan are subject to great changes in sea as well as weatherconditions, and this constitutes a grave threat to navigation.All navigators are required to pay attention to the items described below, understand thegeographical features in these sea areas, and try to enhance the navigational safety.Chapter 1 Weather Conditions in sea Areas along the Coast of Japan1. FogOf all the types of fog that occur in the sea areas along the coast of Japan, the most stringentprecautions should be taken for front and sea fogs. These fogs occur quite extensively andoccasionally remain for half a day to a full one day (See Fig. 1-1 and Table 1-1).Fig. 1-1 Sea Areas along the Coast of Japan Where Fog Occurs Frequently