Filter strips

Management (.Mgt)

FILTERW

Width of the edge of field filter strips (m)

30*

Operations (.Ops)

FILTER_RATIO

Ratio of field area to filter strip area (unitless)

40

Operations (.Ops)

FILTER_CON

Fraction of the HRU which drains to the most concentrated ten percent of the filters strip area

0.5

Operations (.Ops)

FILTER_CH

Fraction of the flow within the most concentrated ten percent of the filter strip which is fully channelized (dimensionless)

0

Grassed waterways

Operations (.Ops)

GWATN

Manning’s “n” value for overland flow

0.35

Operations (.Ops)

GWATL

Grass waterway length (km)

1000

Operations (.Ops)

GWATW

Average width of grassed waterway (m)

10*

Operations (.Ops)

GWATD

Depth of grassed waterway channel from top of bank to bottom (m)

1

Operations (.Ops)

GWATS

Average slope of grassed waterway channel

HRU slope × 0.75

Terraces and contour

Operations (.Ops)

TERR_CN

Curve number

62**

Operations (.Ops)

TERR_SL

Average slope length (m)

61***

Operations (.Ops)

CONT_CN

Initial SCS curve number II value

62**

Deep ripper subsoiler

Management (.Mgt)

CNOP

SCS runoff curve number for moisture conditions II

62**
