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U.S. Geological Survey Open-File Report 2009-1101

The Partition Intervalometer: A Programmable Underwater Timer for Marking Accumulated Sediment Profiles Collected in Anderson Sediment Traps: Development, Operation, Testing Procedures, and Field Results

Return to: Title Page » Introduction » Development » Function and Operation » Testing Procedures and Results » Results of Field Tests » Summary » Acknowledments » References » List of Figures » Appendix 1: Programming the Intervalometer » Appendix 2: Synopsis of Field Notes

Figure 15.  Distribution of discs deposited by the Intervalometer into the collection tubes of the two sediment traps (at 30 mab and 60 mab) recovered from the Mugu Canyon subsurface mooring site. The intervals of the tubes are measured in centimeters; Disc = sequentially numbered discs deposited at ten-day intervals from the Intervalometer; Day = the number of days of sediment accumulated in the tube at the time each disc was deposited. Disc #1 is missing from the 60-mab tube. s/s = stainless steel washers. [Download the full size image in PDF format, 17 KB.]
Figure 15. Distribution of discs deposited by the Intervalometer into the collection tubes of the two sediment traps (at 30 mab and 60 mab) recovered from the Mugu Canyon subsurface mooring site. The intervals of the tubes are measured in centimeters; Disc = sequentially numbered discs deposited at ten-day intervals from the Intervalometer; Day = the number of days of sediment accumulated in the tube at the time each disc was deposited. Disc #1 is missing from the 60-mab tube. s/s = stainless steel washers.

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