Parameter

Description

Calibration Range

Fitted value [Range]

p-Value

CN2

SCS Run off curve number

−0.5 - 0.5

0.155 [−0.199; 0.252]

0.001

OV-N

Manning’s’ “n” value for overland flow

0.01 - 28

21.23 [3.061; 29.915]

0.345

SLSUBBSN

Average slope basin

10 - 110

49.808 [12.677; 49.924]

0.362

ALPHA_BF

Base flow alpha factor

−0.2 - 0.1

0.679

ESCO

Soil evaporation compensation factor

0.01 - 1

0.898 [0.768; 0.991]

0.714

SOL_AWS

Available water content of the soil

−0.35 - 0.25

0.120 [−0.0169; 0.197]

0.016

SOL_BD

Moist bulky density

0.110 - 0.139

0.116 [0.112; 0.195]

0.426

GW_DELAY

Ground water Delay

0.0 - 100

34.938 [0.487; 49.823]

0.37

SURLAG

Surface Runoff lag time

0.05 - 30

20.219 [0.076; 23.878]

0.831

REVAPMN

Threshold depth of water in the shallow aquifer for “revap” or percolation to the deep aquifer to occur

0 - 500

173.709 [0.636; 499.845]

0.516

GW-REVAP

Groundwater revap coefficient

−0.02 - 0.2

0.190 [0.021; 0.199

0.522

SOL-K

Saturated Hydraulic conductivity

0.17 - 0.65

0.183 [0.18; 0.265]

0.05

USLE_K

Saturated hydraulic conductivity (mm/h)

−0.173 - 0.59

0.209 [0.08; 0.227]

0.366

USLE_P

USLE equation support factor

0.35 ? 0.76

0.456 [0.384; 0.6898]

0.021

ADJ_PKR

Peak Adjustment factor (sediment routing in sub-basin)

0.537 - 1.167

0.647[0.622;1.134]

0.364

CH_K2

Effective hydraulic conductivity in the main channel

−0.010 - 239.609

17.961 [16.98; 114.313]

0.012

CH_N2

Manning’s “n” value for the main channel

0.027 - 0.091

0.051 [0.026; 0.059]

0.286

SPCON

Linear parameter for max am sediment that can be re-entrained

0.005 - 0.011

0.007 [0.00115 - 0.0023]

0.483

SPEXP

Exponent parameter for sediment re-entrained

0.753 - 1.151

1.001 [0.825 - 1.09]

0.064

NPERCO

Nitrate percolation Coefficient

0.265 - 0.489

0.269 [0.265; 0.385]

0.022

PHOSKD

Phosphorus soil partitioning coefficient m³/Mg

102 - 200

178 [166; 183]

0.324

PPERCO

Phosphorous percolation Coefficient 10m³/Mg

10.237 - 14.368

11.67 [10.953; 14.335]

0.027