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Minnesota Stormwater Manual

Difference between revisions of "Hover box definitions"

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*<span title="Manner in which the depth of rainfall varies in space and time"> '''rainfall distribution'''</span>
 
*<span title="Manner in which the depth of rainfall varies in space and time"> '''rainfall distribution'''</span>
 
*<span title="The Rational Method is a simple hydrologic calculation of peak flow based on drainage area, rainfall intensity, and a non-dimensional runoff coefficient. The peak flow is calculated as the rainfall intensity in inches per hour multiplied by the runoff coefficient and the drainage area in acres. The peak flow, Q, is calculated in cubic feet per second (cfs) as Q = CiA where C is the runoff coefficient, i is the rainfall intensity, and A is the drainage area. A conversion factor of 1.008 is necessary to convert acre-inches per hour to cfs, but this is typically not used. This method is best used only for simple approximations of peak flow from small watersheds."> [https://stormwater.pca.state.mn.us/index.php?title=The_Simple_Method_for_estimating_phosphorus_export '''Rational Method''']</span>
 
*<span title="The Rational Method is a simple hydrologic calculation of peak flow based on drainage area, rainfall intensity, and a non-dimensional runoff coefficient. The peak flow is calculated as the rainfall intensity in inches per hour multiplied by the runoff coefficient and the drainage area in acres. The peak flow, Q, is calculated in cubic feet per second (cfs) as Q = CiA where C is the runoff coefficient, i is the rainfall intensity, and A is the drainage area. A conversion factor of 1.008 is necessary to convert acre-inches per hour to cfs, but this is typically not used. This method is best used only for simple approximations of peak flow from small watersheds."> [https://stormwater.pca.state.mn.us/index.php?title=The_Simple_Method_for_estimating_phosphorus_export '''Rational Method''']</span>
 +
*<span title="The recurrence interval (sometimes called the return period) is based on the probability that the given event will be equaled or exceeded for a specific time period (e.g. one year)."> [https://stormwater.pca.state.mn.us/index.php?title=Rainfall_frequency_maps recurrence interval]</span>
 
*<span title="A stream, river, lake, ocean, or other surface or groundwaters into which treated or untreated wastewater is discharged"> '''receiving water'''</span>
 
*<span title="A stream, river, lake, ocean, or other surface or groundwaters into which treated or untreated wastewater is discharged"> '''receiving water'''</span>
 
*<span title="Use of more than one BMP to provide additional treatment or protection"> '''redundant'''</span>
 
*<span title="Use of more than one BMP to provide additional treatment or protection"> '''redundant'''</span>

Revision as of 16:23, 18 April 2022

Hover boxes allow the user to hover over bolded text and see a definition for that text. If the bolded text is blue, there is a link to more information.

We have only begun to use them since June, 2019. When we modify older pages, we will incorporate hover boxes into updates.

This page lists standard definitions used in hover boxes throughout this manual. Hover your mouse over any bolded term and a definition will be displayed. This list will continue to expand as new terms are encountered. You'll note that some terms have not yet been defined (not bolded).

A

  • aggregate
  • aggregation
  • alum
  • aliphatic
  • anthropogenic
  • antidegradation
  • aquatic habitat
  • armoring
  • aromatic
  • arterial roads
  • anoxic
  • as-built
  • aspect
  • available water capacity

B

  • baffle
  • bank stabilization
  • baseflow
  • baseline year
  • base saturation
  • basin
  • bathymetric survey
  • berm
  • best management practice
  • biochar
  • bioavailable
  • biodegradation
  • biofiltration
  • bioinfiltration
  • biological oxygen demand
  • biomass
  • bioreactor
  • bioretention practice
  • Bioswale
  • biotic impairment
  • bmp lifespan
  • <span title="Water level fluctuations due to topography, soils, and runoff inputs during and after precipitation events." bounce
  • brownfield
  • Brushing
  • buffer zones
  • build-up
  • bulk density
  • bypass flow

C

  • carbon sequestration
  • catch basin
  • catchment
  • categorical wasteload allocation
  • cation exchange capacity
  • cellulose
  • chain of custody
  • channelized flow
  • chemical oxygen demand
  • check dam
  • chelating agent
  • cistern
  • clay
  • claypan
  • Clean Water Act
  • climate adaptation
  • coagulation
  • coarse sediment
  • coarse texture
  • cofferdam
  • coir
  • collector roadway
  • combined sewer
  • commercial land use
  • compacted soil
  • compost
  • compost maturity
  • concentrated flow
  • concentrated stormwater runoff
  • connected impervious
  • continuous model
  • contributing drainage area
  • credit (stormwater credit)
  • conventional roof
  • curb-cut
  • curb bump-out
  • curve number method

D

  • dead storage
  • deicing
  • denitrification
  • depression storage
  • design flow
  • design flow
  • detention times
  • detritus
  • dewatering
  • dewatering device
  • directly connected impervious
  • dissolved oxygen
  • dissolved phosphorus
  • disconnected roof runoff
  • Disturbed soils
  • ditch checks
  • drainage Area
  • Drinking Water Source Management Area (DWSMA),
  • drip irrigation
  • “drop waterfalls”
  • dry storage
  • dry swale
  • dry weather flow

E

F

G

  • Geographic Information System (GIS)
  • geometric mean
  • geotextile
  • Global Positioning System (GPS)
  • grade
  • grade control structures
  • gray infrastructure
  • Green infrastructure
  • green stormwater infrastructure
  • green roof
  • green space
  • geotextile
  • gross solids
  • grubbing

H

  • hardness
  • harvest and reuse
  • heat island
  • herbaceous perennial
  • herbivory
  • High-density polyethylene
  • highly urban and ultra-urban environments
  • hopper
  • hydraulic conductivity (k)
  • hydraulic grade line
  • hydraulic gradient (i),
  • hydraulic head
  • hydraulic model
  • hydrocarbon
  • hydrodynamic separator
  • hydrogeology
  • hydrologic soil group
  • hydrometer
  • hydroseed

I

J

K

L

  • large lot residential
  • leaching
  • level spreader
  • lidar
  • lignin
  • live storage
  • loam
  • longitudinal slope
  • low permeability soils

M

  • macropore
  • manhole
  • manufactured treatment device
  • media
  • mesic
  • mesocarp
  • microclimate
  • model
  • moderate to steep slopes
  • mounding
  • MS4 (Municipal Separate Storm Sewer System)
  • mulching

N

O

P

  • P8
  • particle size distribution
  • particulate phosphorus
  • particulate matter (air)
  • particulate matter (water)
  • ped
  • pathogen
  • perennial
  • perennial stream
  • performance goal
  • perimeter control
  • permanent cover
  • permanent pool
  • permanent stormwater management
  • permeable pavement
  • permeable reactive barrier
  • Phase 1
  • Phase 2
  • physically-based model
  • pilings
  • plug flow
  • plugs
  • point of discharge
  • pollution prevention
  • polycyclic aromatic hydrocarbons
  • polymer
  • porosity (f)
  • Portland cement concrete
  • Prairie du Chien formation
  • Prescribed burning
  • pre-settlement
  • pretreatment
  • pre-wetting
  • primary treatment practice
  • proprietary structures
  • public ditch
  • public water

Q

  • QA/QC
  • Quality Assurance Project Plan

R

Sa-Sn

So-Sz

T

U

  • highly urban and ultra-urban environments
  • underdrain
  • under-draining
  • undersized BMP

V

W

X

Y

Z

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