What type of bathymetry is used to measure water depth in shallow waters?

LIDAR Bathymetry is a prominent method for measuring water depth in shallow waters. This technique utilizes laser pulses to penetrate the water surface, allowing it to effectively measure depths between approximately 0.5 meters to 30 meters, depending on water clarity and other factors. The laser system can distinguish between the water surface and the submerged bottom, offering high-resolution data that is particularly advantageous for mapping coastal areas, shallow bays, and riverine environments.

Although photo bathymetry can also estimate depth, it primarily relies on photographic images and requires specific conditions to be effective. LIDAR is generally more reliable and commonly used in these shallow water applications because it is less reliant on visual conditions and can produce data quickly over large areas.

Other methods, such as multibeam and single beam bathymetry, are typically employed in deeper waters or are more suited for broader applications rather than specific shallow water measurements.