Table 7 Best trivariate fitted copula and goodness test results for Soleghan station.

From: A copula-based multivariate flood frequency analysis under climate change effects

Periods

Scenarios

# Climate change model

Best fitted copula

RMSE

AIC

NSE

BIC

MAX_L

1980–2012

SSP2-4.5

1

‘HET_C12141920’

0.018

−243.927

0.994

−241.059

123.963

2

‘HET_C12141920’

0.02

−239.796

0.991

−236.928

121.898

3

‘HET_C12141920’

0.033

−208.124

0.968

−205.256

106.062

4

‘HET_AC1920’

0.026

−222.749

0.987

−219.881

113.374

5

‘SYMMETRIC_F’

0.033

−208.924

0.98

−207.490

105.462

6

‘HET_AC1920’

0.03

−213.543

0.974

−210.675

108.771

7

‘HET_C12141920’

0.034

−206.455

0.973

−203.587

105.227

8

‘ASYMMETRIC_G’

0.033

−208.335

0.982

−205.467

106.167

2040–2070

SSP2-4.5

1

‘ASYMMETRIC_F’

0.027

−219.659

0.988

−216.791

111.829

2

‘ASYMMETRIC_J’

0.022

−231.732

0.992

−228.864

117.866

3

‘ASYMMETRIC_F’

0.036

−201.883

0.981

−199.015

102.942

4

‘HET_AC1920’

0.029

−216.005

0.985

−213.137

110.003

5

‘HET_AC1920’

0.02

−238.997

0.992

−236.129

121.499

6

‘SYMMETRIC_G’

0.026

−225.197

0.99

−223.763

113.598

7

‘HET_AC1920’

0.022

−233.119

0.989

−230.251

118.559

8

‘ASYMMETRIC_F’

0.026

−222.275

0.989

−219.407

113.138

2070–2100

SSP2-4.5

1

‘SYMMETRIC_G’

0.03

−215.991

0.989

−214.557

108.995

2

‘ASYMMETRIC_G’

0.02

−237.370

0.994

−234.502

120.685

3

‘ASYMMETRIC_F’

0.032

−209.467

0.985

−206.599

106.733

4

‘ASYMMETRIC_F’

0.027

−220.794

0.988

−217.926

112.397

5

‘HET_AC1920’

0.026

−222.566

0.989

−219.698

113.283

6

‘ASYMMETRIC_F’

0.02

−239.561

0.995

−236.693

121.78

7

‘ASYMMETRIC_F’

0.027

−219.904

0.988

−217.036

111.952

8

‘SYMMETRIC_F’

0.032

−211.025

0.985

−209.591

106.512

  1. SYMMETRIC_F: Symmetric copula structure with Frank function.
  2. HET_C12141920: Heterogeneous asymmetric copula structure.
  3. ASYMMETRIC_G: Homogeneous asymmetric copula structure with Gumbel function.