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Importing from MODFLOW


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I have generated a flow model in PMWin and when importing the discretization file into X2t I get the following error: "non-uniform rows and columns not supported". My cell dimensions are 100x1x10. The top and bottom of the domain varies, but dZ remains constant.

 

Here is the .dis file. Any advice out there?

 

# Discretization file for MODFLOW-2000, generated by PMWIN

1 354 1 1 4 2

0

CONSTANT 100 DELR

CONSTANT 1 DELC

105 1(1G14.0) -1 5. TOP OF SYSTEM

13.96

13.97607

13.99214

14.00821

14.02429

14.04036

14.05643

14.0725

14.08857

14.10464

14.12071

14.13679

14.15286

14.16893

14.185

14.20107

14.21714

14.23321

14.24929

14.26536

14.28143

14.2975

14.31357

14.32964

14.34571

14.36179

14.37786

14.39393

14.41

14.49368

14.57737

14.66105

14.74474

14.82842

14.91211

14.99579

15.07947

15.16316

15.24684

15.33053

15.41421

15.49789

15.58158

15.66526

15.74895

15.83263

15.91632

16

16.08368

16.16737

16.25105

16.33474

16.41842

16.50211

16.58579

16.66947

16.75316

16.83684

16.92053

17.00421

17.08789

17.17158

17.25526

17.33895

17.42263

17.50632

17.59

17.58764

17.58528

17.58292

17.58057

17.57821

17.57585

17.57349

17.57113

17.56877

17.56642

17.56406

17.5617

17.55934

17.55698

17.55462

17.55226

17.54991

17.54755

17.54519

17.54283

17.54047

17.53811

17.53576

17.5334

17.53104

17.52868

17.52632

17.52396

17.5216

17.51925

17.51689

17.51453

17.51217

17.50981

17.50745

17.50509

17.50274

17.50038

17.49802

17.49566

17.4933

17.49094

17.48858

17.48623

17.48387

17.48151

17.47915

17.47679

17.47443

17.47208

17.46972

17.46736

17.465

17.46532

17.46564

17.46596

17.46628

17.4666

17.46692

17.46724

17.46756

17.46788

17.4682

17.46852

17.46885

17.46917

17.46949

17.46981

17.47013

17.47045

17.47077

17.47109

17.47141

17.47173

17.47205

17.47237

17.47269

17.47301

17.47333

17.47365

17.47397

17.47429

17.47462

17.47494

17.47526

17.47558

17.4759

17.47622

17.47654

17.47686

17.47718

17.4775

17.47782

17.47814

17.47846

17.47878

17.4791

17.47942

17.47974

17.48006

17.48038

17.48071

17.48103

17.48135

17.48167

17.48199

17.48231

17.48263

17.48295

17.48327

17.48359

17.48391

17.48423

17.48455

17.48487

17.48519

17.48551

17.48583

17.48615

17.48647

17.4868

17.48712

17.48744

17.48776

17.48808

17.4884

17.48872

17.48904

17.48936

17.48968

17.49

17.49032

17.49064

17.49096

17.49128

17.4916

17.49192

17.49224

17.49256

17.49288

17.49321

17.49353

17.49385

17.49417

17.49449

17.49481

17.49513

17.49545

17.49577

17.49609

17.49641

17.49673

17.49705

17.49737

17.49769

17.49801

17.49833

17.49865

17.49897

17.49929

17.49961

17.49994

17.50026

17.50058

17.5009

17.50122

17.50154

17.50186

17.50218

17.5025

17.50282

17.50314

17.50346

17.50378

17.5041

17.50442

17.50474

17.50506

17.50538

17.5057

17.50603

17.50635

17.50667

17.50699

17.50731

17.50763

17.50795

17.50827

17.50859

17.50891

17.50923

17.50955

17.50987

17.51019

17.51051

17.51083

17.51115

17.51147

17.5118

17.51212

17.51244

17.51276

17.51308

17.5134

17.51372

17.51404

17.51436

17.51468

17.515

17.51532

17.51564

17.51596

17.51628

17.5166

17.51692

17.51724

17.51756

17.51789

17.51821

17.51853

17.51885

17.51917

17.51949

17.51981

17.52013

17.52045

17.52077

17.52109

17.52141

17.52173

17.52205

17.52237

17.52269

17.52301

17.52333

17.52365

17.52397

17.5243

17.52462

17.52494

17.52526

17.52558

17.5259

17.52622

17.52654

17.52686

17.52718

17.5275

17.52782

17.52814

17.52846

17.52878

17.5291

17.52942

17.52974

17.53006

17.53038

17.5307

17.53102

17.53135

17.53167

17.53199

17.53231

17.53263

17.53295

17.53327

17.53359

17.53391

17.53423

17.53455

17.53487

17.53519

17.53551

17.53583

17.53615

17.53647

17.53679

17.53712

17.53744

17.53776

17.53808

17.5384

17.53872

17.53904

17.53936

17.53968

17.54

105 1(1G14.0) -1 5. BOTTOM OF OF LAYER 1

3.96

3.97607

3.99214

4.00821

4.02429

4.04036

4.05643

4.0725

4.08857

4.10464

4.12071

4.13679

4.15286

4.16893

4.185

4.20107

4.21714

4.23321

4.24929

4.26536

4.28143

4.2975

4.31357

4.32964

4.34571

4.36179

4.37786

4.39393

4.41

4.49368

4.57737

4.66105

4.74474

4.82842

4.91211

4.99579

5.07947

5.16316

5.24684

5.33053

5.41421

5.49789

5.58158

5.66526

5.74895

5.83263

5.91632

6

6.08368

6.16737

6.25105

6.33474

6.41842

6.50211

6.58579

6.66947

6.75316

6.83684

6.92053

7.00421

7.08789

7.17158

7.25526

7.33895

7.42263

7.50632

7.59

7.58764

7.58528

7.58292

7.58057

7.57821

7.57585

7.57349

7.57113

7.56877

7.56642

7.56406

7.5617

7.55934

7.55698

7.55462

7.55226

7.54991

7.54755

7.54519

7.54283

7.54047

7.53811

7.53576

7.5334

7.53104

7.52868

7.52632

7.52396

7.5216

7.51925

7.51689

7.51453

7.51217

7.50981

7.50745

7.50509

7.50274

7.50038

7.49802

7.49566

7.4933

7.49094

7.48858

7.48623

7.48387

7.48151

7.47915

7.47679

7.47443

7.47208

7.46972

7.46736

7.465

7.46532

7.46564

7.46596

7.46628

7.4666

7.46692

7.46724

7.46756

7.46788

7.4682

7.46852

7.46885

7.46917

7.46949

7.46981

7.47013

7.47045

7.47077

7.47109

7.47141

7.47173

7.47205

7.47237

7.47269

7.47301

7.47333

7.47365

7.47397

7.47429

7.47462

7.47494

7.47526

7.47558

7.4759

7.47622

7.47654

7.47686

7.47718

7.4775

7.47782

7.47814

7.47846

7.47878

7.4791

7.47942

7.47974

7.48006

7.48038

7.48071

7.48103

7.48135

7.48167

7.48199

7.48231

7.48263

7.48295

7.48327

7.48359

7.48391

7.48423

7.48455

7.48487

7.48519

7.48551

7.48583

7.48615

7.48647

7.4868

7.48712

7.48744

7.48776

7.48808

7.4884

7.48872

7.48904

7.48936

7.48968

7.49

7.49032

7.49064

7.49096

7.49128

7.4916

7.49192

7.49224

7.49256

7.49288

7.49321

7.49353

7.49385

7.49417

7.49449

7.49481

7.49513

7.49545

7.49577

7.49609

7.49641

7.49673

7.49705

7.49737

7.49769

7.49801

7.49833

7.49865

7.49897

7.49929

7.49961

7.49994

7.50026

7.50058

7.5009

7.50122

7.50154

7.50186

7.50218

7.5025

7.50282

7.50314

7.50346

7.50378

7.5041

7.50442

7.50474

7.50506

7.50538

7.5057

7.50603

7.50635

7.50667

7.50699

7.50731

7.50763

7.50795

7.50827

7.50859

7.50891

7.50923

7.50955

7.50987

7.51019

7.51051

7.51083

7.51115

7.51147

7.5118

7.51212

7.51244

7.51276

7.51308

7.5134

7.51372

7.51404

7.51436

7.51468

7.515

7.51532

7.51564

7.51596

7.51628

7.5166

7.51692

7.51724

7.51756

7.51789

7.51821

7.51853

7.51885

7.51917

7.51949

7.51981

7.52013

7.52045

7.52077

7.52109

7.52141

7.52173

7.52205

7.52237

7.52269

7.52301

7.52333

7.52365

7.52397

7.5243

7.52462

7.52494

7.52526

7.52558

7.5259

7.52622

7.52654

7.52686

7.52718

7.5275

7.52782

7.52814

7.52846

7.52878

7.5291

7.52942

7.52974

7.53006

7.53038

7.5307

7.53102

7.53135

7.53167

7.53199

7.53231

7.53263

7.53295

7.53327

7.53359

7.53391

7.53423

7.53455

7.53487

7.53519

7.53551

7.53583

7.53615

7.53647

7.53679

7.53712

7.53744

7.53776

7.53808

7.5384

7.53872

7.53904

7.53936

7.53968

7.54

1 1 1 SS

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  • 2 weeks later...

Hi Matthew,

 

I moved your post to the main GWB page (it was in the archive for old posts, so I didn't see it right away). Could you please attach your budget file, and whatever X2t file you are using as well? I'll try to see if I can figure out what is wrong. One thing that immediately comes to mind (as being different from the GWB examples) is the lines which denote the top and bottom of the system (i.e. 105 1(1G14.0) -1 5. TOP OF SYSTEM). I'm not sure what those numbers and letters refer to, though I have not used the MODFLOW feature extensively.

 

Best,

Brian Farrell

Aqueous Solutions LLC

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Those numbers instruct MODFLOW how to read the array we are using. All of the MODFLOW examples provided with GWB have constant TOP and BOTM of system (as well as nodal block geometry). Our flow model has varying top and bottom (BOTM), which is reflected in the .dis file that I pasted into the original post.

 

We have edited our discretization file so that our model domain has a constant x,y,z (below). GWB is now happy to import the results from MODFLOW.

 

# Discretization file for MODFLOW-2000, generated by PMWIN

1 354 1 1 4 2

0

CONSTANT 100 DELR

CONSTANT 1 DELC

CONSTANT 17.54 TOP of system

CONSTANT 3.95 Layer BOTM layer 1

1 1 1 SS

 

It seems that GWB can't import a flow model from MODFLOW if the geometry of that domain varies. Is this true???

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