mélységmér

Mélysegmer is a Hungarian term that translates to "depth sounding" or "depth measurement." It refers to the process of determining the depth of a body of water. This can be accomplished through various methods, ranging from simple manual techniques to sophisticated electronic instruments. Historically, sounding lines, essentially weighted ropes or wires marked with depth intervals, were used. A sounding line would be lowered to the bottom, and the length of line deployed indicated the depth.

In modern hydrography, echo sounders, also known as sonar, are the primary tools for depth measurement. These devices emit sound pulses downwards and measure the time it takes for the echo to return after reflecting off the seabed. Knowing the speed of sound in water, the depth can be calculated accurately. Other methods include the use of GPS-enabled depth sounders, which combine positioning data with depth readings, and remotely operated vehicles (ROVs) equipped with sonar for detailed underwater surveys. Mélysegmer is crucial for navigation, charting, marine engineering, and scientific research, providing essential information about the underwater topography and conditions.