hydrography
Mapping aquatic depths
Hydrography is the science of measuring and describing bodies of water—their depths, currents, tides, and shorelines.
The field produces nautical charts and maps essential for safe navigation: The ship's captain consulted the latest hydrographic survey before entering the harbor.
Hydrographers map everything from ocean floors to river channels.
Subaqueous topographical measurement
- oceanographyScientific study of seas
- limnologyStudy of inland waters
- geodesyEarth measurement science
- hydrodynamicsScience of liquid motion
sedimentology · sonar · remote sensing · water sampling · salinity · thermocline · water column
Distance below surface
- soundingDepth measurement technique
- water levelHeight of liquid surface
- dischargeRelease of substance outward
- flow rateVolume through per time
benchmark · transect · profiling · buoy · tide table · high water · low water · fathom
Large flowing watercourse
- channelPassage for transmission
- estuaryTidal mixing zone
- straitConstricted marine passage
- harborSafe anchorage for ships
bay · inlet · delta · fjord · sound · narrows · gulf · lagoon
Data shown visually
- nautical chartMap for marine navigation
- atlasBound collection of charts
- projectionSomething that extends outward
- coordinatesLocation-specifying number pairs
longitude · latitude · contour · scale · datum · surveying · geospatial · GIS
bathymetry
Subaqueous topographical measurement
- oceanographyScientific study of seas
- limnologyStudy of inland waters
- geodesyEarth measurement science
hydrodynamics · sedimentology · sonar · remote sensing · water sampling · salinity · thermocline · water column
depth
Distance below surface
- soundingDepth measurement technique
- water levelHeight of liquid surface
- dischargeRelease of substance outward
flow rate · benchmark · transect · profiling · buoy · tide table · high water · low water · fathom
river
Large flowing watercourse
harbor · bay · inlet · delta · fjord · sound · narrows · gulf · lagoon · confluence
chart
Data shown visually
- nautical chartMap for marine navigation
- atlasBound collection of charts
- projectionSomething that extends outward
coordinates · longitude · latitude · contour · scale · datum · surveying · geospatial · GIS · sounding
hydrographytopography
Physical feature mapping
meteorology · climatology · geomorphology · atmospheric science · pedology
- hydrographic surveyMeasuring and mapping underwater features
hydrographic, hydrograph, hydrographer, hydrographers, hydrographically