Current meters are designed to measure the speed and direction of water currents in oceans, lakes, and rivers.

Conductivity-Temperature-Depth (CTD) sensors are commonly used to measure temperature, conductivity (salinity), and depth simultaneously.

Tide gauges are instruments used to measure sea level variations over time, providing valuable data for tidal predictions and coastal studies.

Salinometers are instruments specifically designed to measure the salinity of seawater, providing information about the concentration of dissolved salts.

Echosounders use sound waves to measure the depth of water, providing valuable information for navigation and underwater surveys.

Wave rider buoys are instruments designed to measure wave height, period, and direction, providing data for wave forecasting and coastal studies.

Conductivity-temperature-depth (CTD) sensors are instruments that simultaneously measure water temperature, conductivity (salinity), and depth, providing valuable data for oceanographic studies.

Current meters are instruments specifically designed to measure the speed and direction of ocean currents, providing data for studies of ocean circulation and transport processes.

Tide gauges are instruments used to measure sea level variations over time, providing data for tidal predictions, coastal studies, and sea level rise monitoring.

Salinometers are instruments specifically designed to measure the salinity of seawater, providing data for studies of ocean circulation, water properties, and marine ecosystems.

Echosounders use sound waves to measure the depth of water, providing data for navigation, underwater surveys, and studies of海底地形.

Wave rider buoys are instruments designed to measure wave height, period, and direction, providing data for wave forecasting, coastal studies, and studies of wave-current interactions.

Conductivity-temperature-depth (CTD) sensors are instruments that simultaneously measure water temperature, conductivity (salinity), and depth, providing valuable data for studies of ocean circulation, water properties, and marine ecosystems.

Current meters are instruments specifically designed to measure the speed and direction of ocean currents, providing data for studies of ocean circulation, transport processes, and marine ecosystems.

Tide gauges are instruments used to measure sea level variations over time, providing data for tidal predictions, coastal studies, and sea level rise monitoring.