What type of surveying specifically focuses on hydrological features?

Hydrographic surveying specifically focuses on the study and mapping of bodies of water and their features. This includes the measurement and description of features such as coastlines, riverbeds, and underwater topography, as well as assessing water depths and currents. Hydrographic surveyors gather crucial data that supports navigation, engineering projects, environmental studies, and resource management involving water.

The other types of surveying mentioned do not concentrate on hydrological features to the same extent. Construction surveying mainly deals with the layout and staking of structures, land surveying focuses on establishing land boundaries and property lines, while geomatics surveying encompasses a broader range of spatial data collection and analysis methods but does not specifically zero in on hydrological characteristics.