EXAMPLE SIDE SCAN SONAR IMAGES

STARFISH EXAMPLE SIDE SCAN SONAR IMAGES

Have a look at some examples of side scan sonar images captured by StarFish below. If you would like to see more images captured by StarFish, visit the StarFish Gallery.

Lake Bed

Scan showing boat moorings at the bottom (concrete blocks in craters of silt). The dark area on the left channel is the shoreline. A boat with wake is visible on the right.

At the top of the right channel, it can be seen that the bottom has a rockier texture, and appears brighter than the silt in the rest of the image.

Cable Car Ferry

Lake bed beneath a cable-hauled car ferry. The two cables are visible above the bottom, crossing beneath the sonar.

The movement of the cables has exposed the bedrock of the lake, causing a brighter reflection. The grooves are visible on the centre profile on the lakebed, and the shore and slip-way are visible in the top left.

Marina

Shallow water with moored boats. The bright white targets of the hulls are visible, above 'craters' in the silt, caused by the movement of the mooring cables.

Note the large acoustic shadow on the left channel, caused by a raised area of the seabed being almost level with the sonar in the shallow water.

Coral Reef

Horizontal image orientation showing a scan over coral reefs. At the extreme right of this image, ripples in the sand are visible, while each coral outcrop has clearly visible shadows.

Note how close the sonar came to a small outcrop at the centre of the image!