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Table 4 DTPBJ terrestrial heat flow

From: Heat flow data and thermal structure in northeastern Japan

Site no.

Latitude (°E)

Longitude (°N)

Elv (m)

Depth (m)

Interval (m)

Thermal gradient (K km−1)

Thermal conductivity (Wm−1 K−1)

Heat flow (mW m−2)

438

41.4501

141.0870

160

1702

1200–1700

55

2.12

117

442

41.4207

141.0639

500

1492

750–1100

60

1.62

97

443

41.4026

140.8548

13

1000

400–600

39

(2.86)

112

444

41.3904

141.0895

35

1007

600–950

71

1.72

122

445

41.3540

141.1189

99

1503

1000–1500

70

2.37

165

446

41.2860

140.9742

91

1302

500–800

57

(2.36)

134

448

40.7402

141.1631

31

1001

500–1000

56

(1.56)

88

450

40.7052

140.8395

571

1000

800–1000

90

2.05

183

455

40.6666

140.6395

645

1501

1100–1500

113

1.75

197

458

40.6471

140.8181

733

1000

600–1000

129

2.59

334

461

40.6355

140.7070

250

503

300–500

102

1.89

193

462

40.5858

140.7157

100

1202

800–1200

83

1.86

154

470

40.5163

140.7084

356

1505

1000–1500

31

(1.62)

51

471

40.4527

141.3798

30

1123

600–1000

41

(1.62)

67

479

40.0002

140.8129

869

502

300–500

185

1.57

290

491

39.9808

140.8751

1,120

802

500–800

207

(2.76)

571

494

39.9789

140.7646

1,040

1701

1100–1700

94

(2.02)

190

498

39.9377

140.7057

490

1505

1000–1500

83

2.93

243

504

39.9186

140.9198

873

1002

800–1000

128

1.97

252

511

39.8847

140.9521

731

1004

700–900

164

1.39

228

514

39.8556

140.7604

551

2002

1700–2000

74

2.91

214

518

39.8245

140.9109

955

1503

1250–1490

193

(2.13)

410

520

39.8159

140.9718

707

1203

1000–1200

93

1.32

123

524

39.8047

140.7749

630

1501

1000–1500

72

3.66

263

532

39.7570

140.7654

710

1,501

1000–1500

75

2.69

202

534

39.7261

140.9379

462

1005

800–1000

135

1.03

139

536

39.5223

140.8271

410

1470

1100–1300

28

2.34

66

538

39.4438

141.0907

250

501

400–500

149

1.37

204

540

39.4195

139.8589

− 143

4800

3800–4600

25

(2.34)

58

541

39.4003

140.4835

30

850

600–850

49

(1.92)

94

543

39.3501

140.7210

250

1501

1000–1500

48

2.13

102

546

39.2945

140.7743

280

402

300–400

83

1.57

130

549

39.2687

140.6835

350

1004

800–1000

60

2.27

135

553

39.2195

139.8966

5

703

400–703

42

(1.45)

61

554

39.1862

140.5299

350

1002

800–1000

62

(2.08)

129

555

39.1437

140.1505

420

486

400–473.2

46

(2.14)

99

558

39.0368

140.6332

265

1004

750–1000

56

1.66

94

565

39.0085

140.5822

483

1803

1500–1800

103

(2.08)

213

586

38.9790

140.6588

640

1501

1000–1500

115

3.01

347

589

38.9740

140.7096

670

1202

1000–1200

134

1.49

199

591

38.9732

140.5191

330

1501

1000–1500

62

1.97

123

601

38.9448

140.5618

480

1032

800–1000

124

2.15

266

602

38.9446

141.0632

105

1100

800–1000

68

(1.83)

124

603

38.8287

140.6488

335

1500

1000–1450

94

1.51

142

616

38.7857

140.6946

307

1500

100–1500

132

2.77

366

623

38.6951

140.5721

325

1304

1000–1300

44

1.83

80

625

38.6356

140.1833

381

1502

1000–1500

81

1.50

122

626

38.6307

139.8494

70

1310

1150–1280

52

(2.83)

146

630

38.6154

139.5955

14

503

300–500

98

1.93

188

637

38.5974

140.1716

309

1802

1500–1800

82

2.16

176

640

38.5738

140.7218

180

1300

1000–1300

63

(1.67)

106

642

38.5654

140.5321

230

1703

1500–1700

46

2.24

102

643

38.5651

140.5621

470

1360

1000–1350

56

1.36

76

647

38.5418

141.1521

4

1000

100–1000

44

(1.83)

81

648

38.4860

139.5242

10

1300

100–1300

41

(1.83)

76

649

38.3775

141.1603

6

1700

1500–1700

34

(2.36)

80

650

38.1590

140.3566

545

801

500–800

73

2.25

164

652

38.0863

140.3105

295

501

300–500

36

3.32

120

653

38.0482

138.4596

10

1000

800–1000

36

1.83

66

654

38.0363

138.3524

72

1105

1015–1105

49

2.53

124

656

37.9965

138.4071

22

1300

1100–1300

30

1.77

53

657

37.8780

139.1734

3

4920

-

35

1.62

57

658

37.8757

138.9854

3

5007

-

32

1.62

51

662

37.8113

138.2691

30

1200

1000–1200

61

1.66

101

669

37.7861

140.2630

799

1303

1000–1500

62

(2.22)

137

672

37.7711

138.8754

4

6310

-

29

1.91

55

674

37.7621

138.9487

1

5015

-

32

1.62

52

675

37.7530

139.0165

2

4903

-

33

1.62

53

679

37.6683

140.2128

1000

1301

1000–1300

115

2.34

268

685

37.6291

140.2455

1100

1502

1000–1500

142

1.94

275

688

37.6086

139.4384

120

700

500–700

65

2.50

163

689

37.4750

139.7187

490

491

300–490

101

1.10

111

693

37.4530

139.6667

475

1005

600–1000

85

1.87

159

704

37.4189

139.6939

411

1800

1000–1800

93

2.58

239

705

37.3811

139.2076

575

800

600–800

29

(2.29)

65

706

37.3619

138.5729

2

853

600–800

34

(2.34)

78

707

37.3539

139.1823

560

1200

1000–1200

45

2.29

103

708

37.3350

139.3187

590

1300

1000–1300

53

(1.67)

89

709

37.3289

139.1034

450

1200

1000–1200

48

(2.15)

102

710

37.3003

140.1967

415

1200

800–1200

50

(1.83)

92

713

37.2302

138.3974

7

3781

–

37

(1.62)

60

716

37.2030

138.7440

297

4500

–

36

(1.62)

59

718

37.1031

138.9129

90

1200

1000–1200

23

(2.37)

55

720

37.0319

140.9944

5

1507

1000–1507

25

(2.14)

54

721

37.0225

138.6968

50

1500

900–1300

42

(1.83)

77

722

37.0197

139.6251

780

1002

750–1000

34

(2.13)

72

728

36.9714

140.8036

30

1151

900–1055

19

(2.18)

41

Mishima

37.5008

138.7819

5

6300

–

34

(1.62)

54

  1. Adapted from Terrestrial Heat Flow on Database on the Temperature Profiles of Boreholes in Japan (DTPBJ) (Sakagawa et al. 2004). The depths used to calculate the temperature gradients are listed. The numbers in round brackets indicate estimated values in the thermal conductivity values. The latitude and longitude values of DTPBJ were converted to WGS-84 Datum assuming the Japan Geodetic System (Tokyo Datum) in the original paper, considering the geodetic system and the timing of acquisition of the original data is not mentioned in this paper