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Thanks to many, especially …. VERTIGO investigators at sea And … crew and captain of R/V Revelle

Optical Assessment of Particles and Sedimentation Processes of the Twilight Zone Jim Bishop (LBNL) S E. Wilson (VIMS) and T.J. Wood (LBNL). Imaging Flux Recorder. MULVFS. Thanks to many, especially …. VERTIGO investigators at sea And … crew and captain of R/V Revelle. POC/PIC

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Thanks to many, especially …. VERTIGO investigators at sea And … crew and captain of R/V Revelle

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  1. Optical Assessment of Particles and Sedimentation Processes of theTwilight ZoneJim Bishop (LBNL)S E. Wilson (VIMS)and T.J. Wood (LBNL) Imaging Flux Recorder MULVFS Thanks to many, especially …. VERTIGO investigators at sea And … crew and captain of R/V Revelle POC/PIC & Scattering Sensors on CTD Funding: DOE/Biological and Environmental Research Program And NSF (OCE) for ship time access

  2. Target: Biological pump and export of C to depth PIC Goal: Understand Twilight Zone Processes How: Pioneer autonomous high frequency obs Support DOE Office of Science, Office of Biological and Environmental Research J Bishop LBNL

  3. 0 0 1 1 2 2 3 3 4 4 Pressure (dBars) Transmissometer POC (uM) ALOHA K2 0 1 D2 D1 Support DOE Office of Science, Office of Biological and Environmental Research J Bishop LBNL

  4. Support DOE Office of Science, Office of Biological and Environmental Research J Bishop LBNL

  5. Support DOE Office of Science, Office of Biological and Environmental Research J Bishop LBNL

  6. QUANTITATIVE DIGITAL PHOTOGRAPHY OF > 51 mm particles from MULVFS Gives at sea assessment of biological pump Support DOE Office of Science, Office of Biological and Environmental Research J Bishop LBNL

  7. K2 ALOHA 10 X DIFFERENCE IN >51 mM MATERIAL Support DOE Office of Science, Office of Biological and Environmental Research J Bishop LBNL

  8. Optical Sediment Trap Support DOE Office of Science, Office of Biological and Environmental Research J Bishop LBNL

  9. Optical Carbon Flux Recorder - twined instrumentsthird generation prototype GPS,tracking Main buoy/Strobe/RF floation Nylon Rope Elastomer Damping System Camera, 3 lighting modes Separates POC and PIC Flux Carbon Flux Recorder Depth Recorder Support DOE Office of Science, Office of Biological and Environmental Research J Bishop LBNL

  10. 1146 UTC 2246 L Support DOE Office of Science, Office of Biological and Environmental Research J Bishop LBNL

  11. 1422 UTC 0122 L Support DOE Office of Science, Office of Biological and Environmental Research J Bishop LBNL

  12. 1658 UTC 0358 L Support DOE Office of Science, Office of Biological and Environmental Research J Bishop LBNL

  13. 1933 UTC 0633 L Support DOE Office of Science, Office of Biological and Environmental Research J Bishop LBNL

  14. 2208 UTC 0908 L Support DOE Office of Science, Office of Biological and Environmental Research J Bishop LBNL

  15. 0044 UTC 1144 L Support DOE Office of Science, Office of Biological and Environmental Research J Bishop LBNL

  16. 0319 UTC 1419 L Support DOE Office of Science, Office of Biological and Environmental Research J Bishop LBNL

  17. 0555 UTC 1655 L Support DOE Office of Science, Office of Biological and Environmental Research J Bishop LBNL

  18. QUANTITATIVE ANALYSIS Swimmer in trap Clean Image cycle number 60 cycles / 24 hours

  19. 18 00 06 12 18 night day Dark Field OST Aug 5-6 2006 K2 Support DOE Office of Science, Office of Biological and Environmental Research J Bishop LBNL

  20. 1658 UTC 0358 L EGGS Support DOE Office of Science, Office of Biological and Environmental Research J Bishop LBNL

  21. K2 18 00 06 12 18 night day Support DOE Office of Science, Office of Biological and Environmental Research J Bishop LBNL

  22. “Swimmers” 2 3 4 5 1:37 6:30 11:45 16:50 18:30 Inst 1 Inst 3 Support DOE Office of Science, Office of Biological and Environmental Research J Bishop LBNL

  23. K2 18 00 06 12 18 night day MOST SWIMMERS FEW LARGE AGGS. Support DOE Office of Science, Office of Biological and Environmental Research J Bishop LBNL

  24. Summary: (1) SURFACE POC concentration differences (ALOHA- K2) not strongly indicative of Export Strength (cf. Lam HBLE talk) TWILIGHT POC LEVELS DO. SPIKES IN XMISS PROFILES => ZOOPLANKTON (2) MULVFS SAMPLES PERMIT REAL TIME QUANTITATIVE ASSESSMENT OF LARGE PARTICLE ABUNDANCE (cf. 10X Contrast between K2 and ALOHA) MORE COMING SOON… CHEMISTY - SIZE ANALYSIS Support DOE Office of Science, Office of Biological and Environmental Research J Bishop LBNL

  25. Summary: (3) OPTICAL TRAP: NEW!!! 24 minute flux !!! high frequency detail of particle sedimention. Food Web (egg rain event, diurnal swimmers, etc.) And … Support DOE Office of Science, Office of Biological and Environmental Research J Bishop LBNL

  26. Summary: (3) OPTICAL TRAP: NEW!!! 24 minute flux !!! high frequency detail of particle sedimention. Food Web (egg rain event, diurnal swimmers, etc.) ONE MORE STEP forCarbon FLUX Explorer Development - HOUR RESOLUTION OF SEDIMENTATION FOR MONTHS IN REAL TIME June 21 2005 Support DOE Office of Science, Office of Biological and Environmental Research J Bishop LBNL

  27. Preliminary ICP-MS results MULVFS - Aloha vs K2 1-53 um

  28. P ALOHA K2

  29. Ca

  30. Sr 500

  31. Sr 5000

  32. Ba

  33. Mn

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