Shallow Water Tidal Ripple Patterns 8-10

Natural patterns in rippled water

Shallow Water Tidal Ripple Patterns 8-10 Photographs of natural patterns created by reflected sunlight on the crests of minor ripples in clear shallow seawater lapping with the incoming tide around the island of Burry Holms at the tip of the Gower Peninsula in South Wales. Here shown in negative format to highlight the intricacies of the natural designs.

Natural patterns in rippled water

Natural patterns in rippled water

Shallow Water Tidal Ripple Patterns 4-7

Natural patterns in rippled water

Shallow Water Tidal Ripple Patterns 4-7 Photographs of natural patterns created by reflected sunlight on the crests of minor ripples in clear shallow seawater lapping with the incoming tide around the island of Burry Holms at the tip of the Gower Peninsula in South Wales. Here shown in negative format to highlight the intricacies of the natural designs.

Natural patterns in rippled water

Natural patterns in rippled water

Natural patterns in rippled water

Shallow Water Tidal Ripple Patterns 1-3

Natural patterns in rippled water

Shallow Water Tidal Ripple Patterns 1-3 Photographs of natural patterns created by reflected sunlight on the crests of minor ripples in clear shallow seawater lapping with the incoming tide around the island of Burry Holms at the tip of the Gower Peninsula in South Wales. Here shown in negative format to highlight the intricacies of the natural designs.

Natural patterns in rippled water

Natural patterns in rippled water

Rochefort Slacks Water Ripples

The wind was blowing really hard across the navy blue water surface of slacks trapped behind the shingle banks at Rochefort Point. Rochefort Point is a short walk from the Louisbourg Fortress in Cape Breton, Nova Scotia. The ripples were tight packed and narrow, travelling at speed. The water was actually a brackish brown but reflected the clear blue of the sky resulting mostly in dark blue hues. From some angles and in certain lights the sun shone through the ripples revealing the reddish colour of the water. The low standing crests of the waves were so distinct that it seemed as if the water was viscous.

Ebb Traces in the Sand at Whiteford

Ripples patterns in wet sand at the beach

Ripple patterns in wet sand on the seashoreThe shape of natural abstract sand sculptures, like these ripples on the seashore, result from complex interactions of water and substrate which are the subject of much research in the field of fluid mechanics. They are described as “small-scale three-dimensional bedforms due to interactions of an erodible bed with a sea wave that obliquely approaches the coast, being partially reflected at the beach” (Roos & Blondeaux 2001). Different combinations of three main perturbation agencies create different ripple designs.

REFERENCE

Roos, P.C. and Blondeaux, P. (2001) Sand ripples under sea waves. Part 4. Tile ripple formation, J. Fluid Mech.  vol. 447, pp. 227-246.

Ripples patterns in wet sand at the beach

Ripples patterns in wet sand at the beach

Ripples patterns in wet sand at the beach

Ripples patterns in wet sand at the beach

Ripples patterns in wet sand at the beach

Wave-induced sand ripples with drainage patterns

Natural sand ripple patterns with dendritic drainage channels

I thought this was an interesting phenomenon. Wave-induced sand ripples, that were merging into a tide pool at the base of the cliffs at Rhossili on the Gower Peninsula, had curvilinear and compressed dendritic drainage channels in the narrow valleys between the ridges.