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Pilot study 2: Assessment of sediment traps

Pilot study 2: Assessment of sediment traps. HPA 223. Bearing: March 2008. Sediment trap Wedel. Sediment trap Wedel. Trap built 5.5.08-23.06.08. Volume in %. Width ~300 m. Grain-size of bottom material in µm. Length ~ 2 km. Depth ~ 2m.

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Pilot study 2: Assessment of sediment traps

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  1. Pilot study 2: Assessment of sediment traps

  2. HPA 223 Bearing: March 2008 Sediment trap Wedel

  3. Sediment trap Wedel Trap built 5.5.08-23.06.08 Volume in % Width~300 m Grain-size of bottom material in µm Length ~ 2 km Depth ~ 2m New sedimentation rate~ 10000 to 12000 m³ per day

  4. Near bottom measuring device within the sediment trap Calibration of the long-term turbidity measurements Long-term measurement with Aanderaa measuring devices Cross-section: water sample Aanderaa turbiditydevice bottom Aanderaa RCM 9 or Aanderaa seagurad Monitoring programme • Echo sounding • Water (temperature, salinity,oxygen, current, pollution) • Suspended sediment and bed load(concentration, grain size, pollution) • Fish (survey of fish eggs and larvae)

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