Sastrugi sea ice than on multiyear ice. First-year ice is smoother than multiyear ice, which allows the wind to pass uniformly over the surface without topographic obstructions. Except during the melt season, snow is dry and light in climates cold enough for sea ice, allowing the snow to be easily blown and create sastrugi parallel to the wind direction. The locations of sastrugi are fixed by March in the northern hemisphere and may be linked to the formation of melt ponds. Melt ponds are more likely to form in the depressions between zastrugi on first-year ice. Sastrugi Sastrugi, or zastrugi, are
Surface wave detection by animals line and numbering in the 10s to 100s. Each bundle of hair cells is covered in a gelatinous capulla which the capillary waves actually make contact with and in doing so cause afferent neurons to fire. Neuromasts are similar in structure to canal organs in the lateral line canal system: they are housed in sacs of connective tissue between the skull and skin, and are connected to the water and water surface via canals and canal pores. Recent work has also revealed small ridges of tissue around each neuromast which direct water flow around it. The neuroanatomy beyond the receptor