Parameter

Mode of change and Parameter code

Parameter value range

Parameter sensitivity to AET

Rank

Minimum value

Maximum value

t-stat

p-value

1

Moist bulk density of the soil layer

r_bd

−0.50

0.50

10.2777

1.0 × 10−11

1

2

Soil depth

r_z

−1.0

1.0

−9.4917

2.0 × 10−9

2

3

Soil evaporation compensation factor

v_ESCO

0.10

1.0

−3.34417

0.00281

3

4

Available water capacity of soil layer

r_awc

−0.30

0.30

−3.00806

0.00627

4

5

Moisture condition II―SCS curve number

r_CN2

−0.50

0.50

2.26821

0.033018

5

6

Saturated hydraulic conductivity

r_k

−0.50

0.50

1.515195

0.143346

6

7

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

v_revap_min

100

500

0.46445

0.646692

7

8

Groundwater “revap” coefficient

v_revap_co

0.05

1.0

−0.44607

0.659717

8

9

Threshold depth of water in the shallow aquifer required for return flow to occur

Flow_min

500

5,000

−0.20111

0.84238

9

10

Surface runoff lag coefficient

v_surlag

0.050

0.30

−0.01378

0.98913

10