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A comparison between the IOCCG Simulated Data Set and NOMAD V2 from an OWT perspective

A comparison between the IOCCG Simulated Data Set and NOMAD V2 from an OWT perspective. Timothy S. Moore University of New Hampshire GIOP meeting Sept. 25, 2010 Anchorage Alaska. Distribution of OWTs in Data sets vs. Ocean Obsverations. (numbers are in percent).

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A comparison between the IOCCG Simulated Data Set and NOMAD V2 from an OWT perspective

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  1. A comparison between the IOCCG Simulated Data Set and NOMAD V2 from an OWT perspective Timothy S. Moore University of New Hampshire GIOP meeting Sept. 25, 2010 Anchorage Alaska

  2. Distribution of OWTs in Data sets vs. Ocean Obsverations (numbers are in percent) * - AOP without matching IOPSs

  3. OWT 1 OWT 5 N=45 N=41 OWT 2 OWT 6 N=43 N=180 OWT 3 OWT 7 N=45 N=91 OWT 4 OWT 8 N=6 N=19

  4. OWT 1 OWT 5 ag411 OWT 2 OWT 6 OWT 7 OWT 3 OWT 8 OWT 4

  5. bbp slope

  6. aph

  7. aph 443

  8. Comparison to NOMAD data

  9. OWT 1 ag s IOCCG NOMAD

  10. OWT 1 log ag443 log aph443 ag443/at443 bbp slope IOCCG NOMAD

  11. 3.5 -0.5 0 0.5 1 1.5 2 2.5 3 OWT 2 log ag443 log aph443 bbp slope ag443/at443 IOCCG NOMAD -2.5 -2 -1.5 -1 -0.5 0 0.5 -2.5 -2 -1.5 -1 -0.5 0

  12. OWT 3 bbp slope log ag443 log aph443 ag443/at443 IOCCG

  13. OWT 4 bbp slope log ag443 log aph443 ag443/at443 IOCCG

  14. OWT 5 bbp slope log ag443 log aph443 ag443/at443 IOCCG

  15. OWT 6 log ag443 log aph443 bbp slope ag443/at443 IOCCG

  16. OWT 7 log ag443 log aph443 bbp slope ag443/at443 IOCCG

  17. OWT 8 log ag443 log aph443 bbp slope ag443/at443 IOCCG

  18. All

  19. Summary • There are some inconsistencies in the OWT-based distributions of IOPs between NOMAD and the IOCCG simulated data set. • Both data sets are skewed towards coastal/case 2 waters. • Both data sets have some questions regarding the spectral slope of CDOM. • If a new simulated data set is being considered, the generation of IOPs and IOP pairs could be further constrained by the variance and co-variance as seen in NOMAD within different OWTs. • In addition, the representation of data points could be guided by the global distribution of naturally occurring OWTs.

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