Page
179
of
254
Version 6.3
Rev
r012
Date
05-11-2022
Graph 5: Seawater Absorption (Salinity 35ppt)
Graph 6: Freshwater Absorption
0
20
40
60
80
100
120
140
160
5°
10°
15°
20°
25°
Ab
so
rp
tio
n d
B/
km
Frequency and Temperature Influence on Seawater
Absorption
400kHz
200kHz
Degrees Celsuis
Mean values for water
depths from 50 metres to
300 metres (400 metres
for 200 kHz)
0
10
20
30
40
50
60
70
5°
10°
15°
20°
25°
Ab
so
rp
tio
n d
B/
km
Frequency and Temperature Influence on Freshwater
Absorption
400 kHz
200 kHz
Degrees Celsius
Mean values for
water depths
from 50 metres
to 300
metres
Summary of Contents for 2026
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Page 158: ...Figure 174 Smooth log information copied from a real time survey log...
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Page 237: ...Page 237 of 254 Version 6 3 Rev r012 Date 05 11 2022 Figure 215 Sonic 2026 Projector...
Page 247: ...Page 247 of 254 Version 6 3 Rev r012 Date 05 11 2022 Figure 225 SIM Stack Outline...
Page 249: ...Page 249 of 254 Version 6 3 Rev r012 Date 05 11 2022 Figure 227 Locking Ring type Deck Lead...
Page 251: ...Page 251 of 254 Version 6 3 Rev r012 Date 05 11 2022 Figure 229 I2NS Type 82 IMU offsets...
Page 253: ...Page 253 of 254 Version 6 3 Rev r012 Date 05 11 2022 Figure 231 I2NS SIM Dimensions...