Glossary beginning with S

terms for which definitions are available

sediment

particles, especially inorganic soil particles, that settle upon stream surfaces

sheet flow

a flow process associated with broad, shallow water movement on sloping ground surfaces that is not channelized or concentrated

Silt

inorganic sediment particles between 3.9 and 62.5 μm in diameter; 'siltation' is the process of being covered by or embedded in silt

sinuosity

a measure of the degree to which a stream, viewed from above, deviates from a linear path, expressed as the ratio of stream length between two points divided by the valley length, or point-to-point distance between the same two points

species

the level of biological taxonomic classification at which living things are separated from one another by the ability to reproduce yielding fertile offspring

SSO

Sanitary Sewer Overflow

substrate

a surface upon which living things grow; commonly, the bottom of a stream or river

SWMM

Storm Water Management Model