Hydrographic [adjective]

A hydrographic survey of the State was authorized by the Legislature as early as 1867.

To establish this fact will be to solve the last problem of the hydrographic system of Africa.

The water was about three hundred feet deep here, the Hydrographic Office charts showed.

Our hydrographic engineers contribute also to the common achievement a glorious contingent.

No country in the world can boast of such an efficient Hydrographic Department as our own.

Not the least of the drawbacks under which the enterprise labored was extremely defective information—especially hydrographic.

Islands by the hundred, hitherto never placed on any map, challenged one's hydrographic skill.

In searching for sunken vessels two boats are used, of the same general type as the "hydrographic submarine."

For registering the height of the tide at every instant, hydrographic services generally adopt quite a simple marigraph.

The Hydrographic Office publishes blank Mercator charts for all latitudes in which they can be used for plotting your position.