WONIAK'S CLASSIFICATION OF NATURAL WATERS

Sources:
Woniak B., Pelevin V. N., 1991, Optical classifications of the seas in relation to phytoplankton charakteristics, Oceanologia, 31, 25-55.
Kaczmarek S., Woniak B., 1995, The application of the optical classification of waters in the Baltic Sea investigation (Case 2 waters), Oceanologia 37 (2), 285-297.

The only parameter describing light attenuation coefficients Kd (total), and Kpl (by phytoplankton pigments) is chlorophyll a concentration Ca. The equations of classification are as follow:

,

where:

 
for Southern Baltic waters,

D K(l)=0
for case 1 waters.

The parameters are given in table below.

lambda - [nm]; a1, a2 - [m3*mg-1]; A1, A2, Kd,j, Kc,j - [m-1*(mg*m-3)-1]; Kw - [m-1]

lambda

a1

a2

C1

C2

Kd,j

Kc,j

Kw

350

0.303

3.82

0.270

0.0116

0.0823

0.0138

0.0581

360

0.292

3.91

0.222

0.0169

0.0805

0.0145

0.0490

370

0.291

2.55

0.183

0.0263

0.0771

0.0157

0.0351

380

0.352

2.08

0.166

0.0297

0.0747

0.0192

0.0310

390

0.417

1.98

0.150

0.0430

0.0723

0.0229

0.0250

400

0.441

1.94

0.141

0.0531

0.0675

0.0251

0.0209

410

0.495

1.83

0.137

0.0720

0.0643

0.0273

0.0197

420

0.531

1.80

0.131

0.0730

0.0626

0.0284

0.0187

430

0.580

1.70

0.119

0.0730

0.0610

0.0309

0.0177

440

0.619

1.70

0.111

0.0733

0.0609

0.0317

0.0176

450

0.550

1.68

0.107

0.0690

0.0569

0.0308

0.0181

460

0.487

1.60

0.0950

0.0685

0.0536

0.0285

0.0189

470

0.500

1.59

0.0970

0.0660

0.0479

0.0265

0.0198

480

0.500

1.47

0.0780

0.0645

0.0462

0.0242

0.0205

490

0.509

1.53

0.0774

0.0610

0.0427

0.0221

0.0230

500

0.610

1.63

0.0672

0.0570

0.0389

0.0197

0.0276

510

0.594

1.85

0.0598

0.0480

0.0363

0.0182

0.0371

520

0.590

2.03

0.0610

0.0390

0.0319

0.0169

0.0473

530

0.693

2.02

0.0573

0.0337

0.0288

0.0144

0.0513

540

0.606

1.93

0.0506

0.0289

0.0285

0.0118

0.0567

550

0.514

1.91

0.0432

0.0217

0.0274

0.0106

0.0640

560

0.465

1.61

0.0425

0.0143

0.0248

0.0100

0.0720

570

0.384

2.57

0.0288

0.0114

0.0240

0.00988

0.0810

580

0.399

3.49

0.0230

0.00820

0.0231

0.00987

0.107

590

0.365

3.60

0.0180

0.00619

0.0231

0.00970

0.143

600

0.333

3.90

0.0171

0.00478

0.0225

0.00944

0.212

610

0.304

3.95

0.0159

0.00337

0.0216

0.00918

0.236

620

0.316

4.03

0.0150

0.00173

0.0225

0.00936

0.264

630

0.421

4.10

0.0183

0.00135

0.0225

0.00944

0.295

640

0.420

5.08

0.0216

0.00058

0.0226

0.0105

0.325

650

0.346

5.40

0.0164

0.00045

0.0236

0.0133

0.343

660

0.348

5.4

0.0141

0

0.0260

0.0190

0.393

670

0.173

-1

0.00939

0

0.0267

0.0230

0.437

675

0.173

-1

0.00436

0

0.0270

0.0255

0.455

680

0.173

-1

0

0

0.0258

0.0246

0.478

690

-1

-1

0

0

0.0190

0.0180

0.535

700

-1

-1

0

0

0.0125

0.0115

0.626

710

-1

-1

0

0

0.0045

0.0040

1.000

720

-1

-1

0

0

0.0014

0.00092

1.360

730

-1

-1

0

0

0.00041

0.0002

1.810

740

-1

-1

0

0

0.000071

0.0000152

2.393

750

-1

-1

0

0

0.000013

0.000013

2.990