Bathymetric Mapping
Definition
Bathymetric Mapping is the process of mapping underwater topography using sonar, LiDAR, or satellite data. It captures depth contours, seabed structures, and underwater features of oceans, lakes, and rivers.
Application
Applied in marine navigation, habitat assessment, resource exploration, and tsunami modeling. Bathymetry helps manage coastal zones and design underwater infrastructure.
FAQ
What is bathymetric mapping in GIS?
It’s the process of creating maps that represent underwater terrain using depth data collected from sonar and remote sensing tools.
Why is bathymetric mapping important?
It supports safe navigation, environmental monitoring, marine habitat research, and undersea cable planning.
What technologies are used in bathymetric surveys?
Multibeam sonar, LiDAR bathymetry, echo sounding, and satellite altimetry are commonly used.
How is bathymetric data visualized in GIS?
Using raster or TIN models with gradient shading and contour lines to illustrate depth variations.