Table 5 Verification of the sedimentation volume and distribution in the trunk stream in the TGR area from 2008 to 2017 (based on the cross-section).

From: Prediction research on sedimentation balance of Three Gorges Reservoir under new conditions of water and sediment

Segment

River length (km)

Measured (100 million m3)

Calculated

Absolute error (100 million m3)

Relative error (%)

Tongluoxi-Fuling

111.4

 − 0.249

 − 0.264

 − 0.015

6.2

Fuling-Zhongxian

113.9

2.063

2.242

0.179

8.7

Zhongxian-Yunyang

66.7

4.123

4.292

0.169

4.1

Yunyang-Fengjie

67.8

0.642

0.704

0.062

9.7

Fengjie-Wushan

35.5

0.264

0.252

 − 0.012

 − 4.5

Wushan-Miaohe

106.3

0.985

0.895

 − 0.091

 − 9.2

Miaohe-Daba

15.1

0.659

0.966

0.307

46.5

Tongluoxia-Daba

597.9

8.492

9.282

0.790

9.3

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