Examples from the Web for hydrographic
Hydrographic surveys and drawing beach charts were a snap in comparison.
In this work the British hydrographic office may justly claim the credit of having contributed the chief share.
“Hydrographic Notices, Pacific Ocean,” 1856 to 1873 (p. 106).The Solomon Islands and Their Natives|H. B. (Henry Brougham) Guppy
In searching for sunken vessels two boats are used, of the same general type as the "hydrographic submarine."The Submarine in War and Peace|Simon Lake