hydrographic
Charting ocean depths
Hydrographic relates to the measurement and description of bodies of water—their depth, currents, tides, and shorelines.
Hydrographic surveys map the seafloor for navigation charts.
The hydrographic data revealed a previously unknown underwater ridge.
The field supports safe shipping, coastal engineering, and marine science.
Subaqueous topographical measurement
- soundingsMeasured water depths
- chart datumTidal elevation reference point
- nautical chartMap for marine navigation
- contoursBoundary lines of shapes
depth sounding · echosounder · fathom · lead line · datum · projection
Massive saltwater body
- seaSaltwater body, not ocean
- riverLarge flowing watercourse
- lakeEnclosed body of freshwater
- estuaryTidal mixing zone
bay · gulf · channel · fjord · lagoon · delta · harbor · strait
Periodic sea-level changes
- currentsDirectional flows of movement
- salinityDissolved mineral concentration
- thermoclineRapid temperature-change layer
- water temperatureWarmth of a liquid
tidal range · tidal stream · density · circulation · upwelling · stratification · halocline
Observation path for surveys
- data collectionSystematic accumulation of facts
- triangulationLocation via three points
- positioningArranging in specific locations
- GPSSatellite-based location technology
bathymetry
Subaqueous topographical measurement
- soundingsMeasured water depths
- chart datumTidal elevation reference point
- nautical chartMap for marine navigation
contours · depth sounding · echosounder · fathom · lead line · datum · projection
ocean
Massive saltwater body
estuary · bay · gulf · channel · fjord · lagoon · delta · harbor · strait · inlet
tides
Periodic sea-level changes
- currentsDirectional flows of movement
- salinityDissolved mineral concentration
- thermoclineRapid temperature-change layer
water temperature · tidal range · tidal stream · density · circulation · upwelling · stratification · halocline
transect
Observation path for surveys
- data collectionSystematic accumulation of facts
- triangulationLocation via three points
- positioningArranging in specific locations
GPS · baseline · theodolite · benchmark
- surveyingsurveyor, theodolite, land surveys, survey markers, triangulation
- oceanographyoceanography, oceanographer, sonar, marine science, ocean circulation
hydrographictopographic
Concerning surface feature arrangement
terrestrial · land survey · geodetic · cadastral · geomorphological
hydrographicterrestrial
Relating to land
land-based · atmospheric · aerial · meteorological · subterranean
- hydrographic surveyMeasuring and mapping underwater features