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LID SWM Planning and Design Guide β

Notation

Revision as of 00:29, 29 September 2017 by Jenny Hill (talk | contribs)
d
Depth e.g. of an infiltration practice (units of length, usually m)
f
Eh?
L
Length, e.g. of a reach, channel or swale (usually in m)
m
run of side slopes in channel cross sections (length, but usually expressed as a ratio in relation to rise. e.g. where side side slopes = 1:3.5, m = 3.5)
q
infiltration rate in (length per time, usually mm/hr) (before or after application of safety factor?)
Qp
Peak flow in units of volume per time (e.g. m3/s)
Ra
Existing rise of swale gradient (length, usually m)
Rb
Rise of compensation gradient for an enhanced swale (length, usually m)
RVCT
Runoff volume control target (as outlined in MOECC recommendations, mm)
S
Slope
SCF
Safety correction factor (dimensionless)
y
Depth of water (length, usually m or sometimes mm)