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Table 5 Per tidal phase the D50 (distance at which the detection probability was 50%), median noise, median water depth, median tilt angle and median water speed are given

From: Turning the tide: understanding estuarine detection range variability via structural equation models

Phase (hours)

D50 (m)

Noise (mV)

Water depth (m)

Tilt angle (\(^\circ\))

Water velocity (m/s)

HW (1)

171

326.80

3.60

19.00

– 0.65

Ebb (1)

229

224.35

3.28

18.00

0.11

Ebb (2)

200

223.40

2.72

21.00

0.62

Ebb (3)

123

370.00

2.30

23.00

0.72

Ebb (4)

100

443.20

1.81

23.00

0.72

Ebb (5)

89

468.95

1.35

24.00

0.71

Ebb (6)

83

482.25

0.92

25.00

0.70

Ebb (7)

71

472.15

0.52

29.00

0.68

LW (1)

88

418.40

0.46

28.00

0.64

Flood (1)

189

193.45

0.88

21.25

0.04

Flood (2)

203

192.90

1.51

20.00

– 0.38

Flood (3)

157

283.45

2.46

23.00

– 0.66

Flood (4)

88

474.00

3.32

23.00

– 0.88

HW (1)

171

326.80

3.60

19.00

– 0.65

  1. The tidal cycle was subdivided in hourly tidal phases. No distinction was made between neap tide, spring tide or intermediate tide. The detection probability was estimated using the developed logistic submodel of the pSEM under median conditions of noise, water depth and tilt angle for all the considered tidal phases. For each tidal phase the distance at which the detection probability was 50% was given