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Optimizing Fall Rate Experiments for Depth Correction in Ocean Studies

Explore the results of four fall rate experiments aiming to minimize depth-related temperature errors. Learn the algorithm for depth offset correction and post-correction analysis.

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Optimizing Fall Rate Experiments for Depth Correction in Ocean Studies

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  1. Results from Four Fall Rate Experiments Derrick Snowden, Molly Baringer and Gustavo Goni

  2. Cruise Locations rb98: 79 rvyf: 427 (6 systems) nf0705: 10 pne07: 18

  3. PNE07 XBT/CTD Profiles

  4. PNE07 XBT/CTD Profiles

  5. Determining Depth Offset Focus on the temperature gradient: derivative of temperature with respect to depth Minimize temperature error effect

  6. Depth Offset Prior to Correction

  7. Depth Correction Algorithm • Assemble the depth offsets (dZ) • Recalculate XBT depths Znew = Zxbt+dZ • Back calculate time (t) • Fit new fall rate equation to (t) z = at^2 + bt + c

  8. Depth Offset: Post-Correction

  9. Depth Offset Prior to Correction

  10. Depth Offset: Post-Correction

  11. Depth Offset Prior to Correction

  12. Depth Offset: Post-Correction

  13. Depth Offset Prior to Correction

  14. Depth Offset: Post-Correction

  15. Summary of Fall Rate Coefficients

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