Table 7 Fitted a, b and R2 values of correlation between ETo,s and ETo,i in seven sub-regions and whole Bangladesh.

From: The optimal alternative for quantifying reference evapotranspiration in climatic sub-regions of Bangladesh

Sub-region

Parameter

ET0,1

ET0,2

ET0,3

ET0,4

ET0,5

ET0,6

ET0,7

ET0,8

ET0,9

ET0,10

ET0,11

ET0,12

ET0,13

I

A

0.738

0.761

0.435

0.645

0.058

1.089

0.712

0.697

0.760

1.151

1.479

0.683

0.089

B

0.954

1.229

1.559

0.815

0.045

− 0.312

1.292

0.619

0.196

0.215

− 0.458

0.879

0.078

R2

0.901

0.919

0.911

0.978

0.917

0.989

0.988

0.986

0.984

0.986

0.984

0.988

0.921

II

A

0.781

0.794

0.787

0.688

0.055

1.076

0.694

0.702

0.754

1.038

1.393

0.641

0.078

B

0.934

1.310

1.222

0.782

0.040

− 0.259

1.335

0.608

0.225

0.155

− 0.188

1.003

0.045

R2

0.958

0.96

0.942

0.956

0.86

0.982

0.98

0.982

0.98

0.974

0.978

0.98

0.88

III

A

0.744

0.782

0.752

0.651

0.054

1.032

0.695

0.667

0.716

1.051

1.38

0.656

0.067

B

1.061

1.333

1.342

0.908

0.045

− 0.049

1.351

0.760

0.395

0.163

− 0.070

0.956

0.055

R2

0.956

0.96

0.961

0.955

0.848

0.988

0.976

0.987

0.974

0.974

0.974

0.974

0.854

IV

A

0.713

0.747

0.735

0.624

0.060

1.051

0.694

0.675

0.727

1.051

1.401

0.660

0.079

B

1.154

1.435

1.255

0.990

0.050

− 0.162

1.306

0.660

0.279

0.062

− 0.236

0.894

0.058

R2

0.943

0.951

0.964

0.941

0.856

0.984

0.978

0.978

0.978

0.976

0.976

0.978

0.861

V

A

0.782

0.805

0.741

0.687

0.071

1.000

0.631

0.591

0.644

0.953

1.302

0.582

0.085

B

1.006

1.315

1.233

0.856

0.097

0.099

1.564

1.012

0.628

0.457

0.179

1.179

0.099

R2

0.956

0.962

0.967

0.955

0.803

0.974

0.972

0.970

0.970

0.970

0.972

0.968

0.812

VI

A

0.619

0.643

0.687

0.543

0.083

0.817

0.520

0.493

0.538

0.813

1.084

0.488

0.098

B

1.504

1.819

1.612

1.295

0.115

0.566

1.868

1.233

0.866

0.833

0.751

1.424

0.122

R2

0.955

0.956

0.954

0.952

0.866

0.978

0.964

0.966

0.966

0.968

0.970

0.964

0.871

VII

A

0.744

0.799

0.778

0.649

0.052

0.995

0.67

0.626

0.663

1.023

1.363

0.646

0.056

B

1.091

1.306

1.124

0.943

0.033

0.097

1.455

0.882

0.493

0.107

0.009

0.994

0.043

R2

0.968

0.972

0.952

0.966

0.914

0.979

0.98

0.976

0.974

0.976

0.974

0.98

0.911

Whole BD

A

0.796

0.846

0.784

0.696

0.061

1.046

0.654

0.691

0.706

1.098

1.418

0.660

0.071

B

0.818

1.054

1.102

0.699

0.056

− 0.151

0.763

1.348

0.363

− 0.091

− 0.258

0.929

0.057

R2

0.743

0.766

0.787

0.736

0.615

0.856

0.803

0.849

0.811

0.843

0.851

0.825

0.601

Back to article page