U.S. Department of the Interior U.S. Geological Survey The development and application history of the USGS sediment trap Jingping Xu Coastal and Marine.

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Presentation transcript:

U.S. Department of the Interior U.S. Geological Survey The development and application history of the USGS sediment trap Jingping Xu Coastal and Marine Geology U.S. Geological Survey Menlo Park,CA 徐景平

Sed. traps in ocean research Honjo-type Traps · Deep, open-ocean · Biological research hahana.soest.hawaii.edu

Sed. traps in ocean research Honjo-type Traps · Deep, open-ocean · Biological research

Sed. traps in ocean research Technicaps · Sediment trap · Popular in Europe

Sed. traps in ocean research James Liu

USGS Sediment trap · Patented by Roger Andersen · Technology transferred to USGS in 2007 · USGS improved the intervalometer design · Worked well in high sedimentation rate environments (shelves, canyons, etc.) United States Patent

USGS Sediment trap

Sediment trap data Top 60 MAB Bottom 30 MAB

Sediment trap data

USGS Sediment trap

Thank You [will answer questions at the end of Marinna’s talk] 謝謝