Nautical charts are essential tools for marine navigation; many countries require vessels, especially commercial ships, to carry them.

For marine navigation, the earliest examples were found around 1460.

NOS scientists perform many activities to support safe and efficient marine navigation.

It is an active aid to marine and aeronautical navigation.

This was the first of a series of chronometers that enabled accurate marine navigation.

At low tide, much of the arms' silty bottoms are exposed, making marine navigation difficult.

In marine navigation a "dead" reckoning plot generally does not take into account the effect of currents or wind.

But as marine navigation improved and the number of shipwrecks decreased, the trail fell victim to neglect.

These banks can be hazard for marine navigation because they are constantly changing due to tidal currents.

He wrote several textbooks for sailors and first in Polish history textbook of marine navigation.