1 / 11

ROMS vs HF Radar vs Drifters in Lagrangian Frame?

ROMS vs HF Radar vs Drifters in Lagrangian Frame?. Meeting with Charles 10/21/08. What Carter & Satoshi think. Dong et al (in review) ROMS against observations including HF radar vs drifters In Eulerian Frame Agree within 10’s % of difference

lauren
Download Presentation

ROMS vs HF Radar vs Drifters in Lagrangian Frame?

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. ROMS vs HF Radar vs Driftersin Lagrangian Frame? • Meeting with Charles • 10/21/08

  2. What Carter & Satoshi think • Dong et al (in review) • ROMS against observations including HF radar vs drifters • In Eulerian Frame • Agree within 10’s % of difference • Can nearshore site connectivity be accurately predicted? • Lagrangian validations may be useful • (to convince people who do not believe in models)

  3. How to measure “accuracy” • In terms of mean or realizations? • Mean is more predictable • “True dispersal” = larval dispersal, pollutant spread, etc • Nearshore site connectivity • We need some metrics that work for all methods • Statistical measures? • e.g., residence time, PDFs, connectivity? • Gaps in coverage among them

  4. HF Radar Coverage • Ohlmann et al (2006) show its accuracy against drifters • Issues: limited coverage & “gaps” Year = 2007 Year = 2001

  5. Surface Drifter Coverage • Probably most accurately describe water parcel dispersals • Issues: spatio-temporal resolutions, not after 1999 Not many in the South of SCB

  6. ROMS Coverage • Best spatial & temporal resolution (1996 - 2003) • 2004 - 2008 depends on support for Charles (1995, 1994, …?) [ C ]

  7. Given gaps among observations & ROMS, • What do we do? • We don’t know yet • Let’s start with what we can do...

  8. Preliminary Results: Drifters vs ROMS

  9. Comparison with Lagrangian PDFs

  10. Q: What (how) should we do? • Q: How do we collaborate? • Up to Carter, Libe, Charles & Jim HF radar & drifters Carter& Libe ROMS Charles, Eileen & Jim Applications Dave & Satoshi Need more arrows here

  11. That’s it • Thanks...

More Related