Table 4 Roughness parameters of four types of algal cells.

From: Morphological and physicochemical diversity of snow algae from Alaska

Type 1 (µm)

Type 2 (µm)

Type 3 (µm)

Type 4 (µm)

Ra = 0.76  ± 0.076

Ra = 3.23  ± 0.076

Ra = 1.08  ± 0.076

Ra = 5.01  ± 0.076

Rq = 1.65  ± 0.076

Rq = 4.44  ± 0.076

Rq = 2.06  ± 0.076

Rq = 6.38  ± 0.076

Rt = 14.64  ± 0.076

Rt = 27.00  ± 0.076

Rt = 18.52  ± 0.076

Rt = 31.60  ± 0.076

  1. Ra the arithmetic mean of the elevation profile, Rq the mean square elevation profile, Rt the maximum height of profile.