The Many Factors Affecting Underwater Visibility and its Effects on SCUBA Divers

Underwater visibility refers to the clarity of water and how far objects can be seen underwater. Several factors can influence underwater visibility, including tides, suspended particles, poor water quality, low light levels, strong currents, weather conditions such as upwelling or downwelling, and more. In this article, we will discuss each of these factors and their impact on SCUBA divers. Tides: Tides can cause underwater visibility to vary due to the movement of water and the associated stirring up of particles and sediment. When water is moving, it can cause particles and sediment to become suspended in the water column, reducing visibility. Suspended particles: Suspended particles of sand, mud, clay, or other bottom sediments can also affect underwater visibility. These particles behave much like fog on land, causing distant shapes to become colourless and poorly defined shadows. Poor water quality: Poor water quality can also reduce visibility underwater. This can be caused by p...