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| |- | | |- |
| |width = 210px|Berm height (mm) | | |width = 210px|Berm height (mm) |
− | |Sometimes referred to as the bowl depth | + | |Ponding depth, maximum (e.g. 300 mm), sometimes referred to as 'bowl depth' |
| |- | | |- |
| |Surface roughness (Manning’s n) | | |Surface roughness (Manning’s n) |
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| |Depth of filter media | | |Depth of filter media |
| |- | | |- |
− | |Porosity (fraction) | + | |Porosity of filter media |
− | |Suggest range 0.3 – 0.35 unless otherwise tested | + | |Suggest [[Bioretention media storage|0.35]] unless otherwise tested |
| |- | | |- |
| |Field capacity (fraction) | | |Field capacity (fraction) |
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| |Suggested value 0.03 <ref name = SWMM/> | | |Suggested value 0.03 <ref name = SWMM/> |
| |- | | |- |
− | |Conductivity (mm/hr) | + | |Hydraulic conductivity (mm/hr) |
| |Suggested range 25 – 250 mm/hr | | |Suggested range 25 – 250 mm/hr |
| |- | | |- |
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| |Depth of storage aggregates layer | | |Depth of storage aggregates layer |
| |- | | |- |
− | |Void ratio | + | |Porosity of storage reservoir aggregate |
| |Suggest value 0.4 unless otherwise tested | | |Suggest value 0.4 unless otherwise tested |
| |- | | |- |
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| |Maybe up to 0.5 to account for some anticipated maturation. | | |Maybe up to 0.5 to account for some anticipated maturation. |
| |- | | |- |
− | |Design drawdown time (hrs) | + | |Design [[drainage time]] (hrs) |
− | |Also known as '[[drainage time]]' | + | |Maximum permissible time to fully drain the storage reservoir. |
| |- | | |- |
| !colspan = "2" align = center"|'''Drain (underdrain)''' | | !colspan = "2" align = center"|'''Drain (underdrain)''' |
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| |} | | |} |
| | | |
− | [[category: modelling]] | + | [[category: modeling]] |