Ship ops teleconference notes – June/05/2017

Call minutes – Inner Shelf DRI ship ops (June/05/2017)

Attendees: Amy Waterhouse, Jen MacKinnon, Jack Barth, André Palóczy, Chris Chickadel, Melissa Moulton.

Info from UW aircraft group (Chris and Melissa):

  • Interested in surfzone-inner shelf exchange, fronts and surface signature of IWs and bores.

  • Can fly up to 8 h/day, refuel after 4 h and return to survey. ~1 h of transit.

  • Will be flying during 11-19/Sep and 5-14/Oct.

  • Instruments: IR and visible cameras, also surface currents. Resolution of ~6 m after processed.

  • The only real-time data available is from the visible-band camera.

  • Along-shore surveys up to 20 km, about ¼ South of Pt. Sal and ¾ North of it, up to SL Obispo.

  • Cross-shore surveys. Can cover the nearshore while Ken and Luc cover the offshore.

  • Melissa: Could do short ~45 min flights, or longer ones. Synopticity/coverage trade-off.

  • Interested in combining the subsurface ship data with the synoptic aircraft data. Will be able to 1) Sample interesting features found by the ship group and 2) Inform the ship group of interesting features.

Discussion on model sampling analyses:

  • Jen: Add white noise to simulate instrumental error.

  • Jen: Look how sampled model output changes as f(noise level, # of ships, sampling pattern).

  • Jack: Look at how aliasing changes with different sampling patterns with 2+ ships. Examples:

    • 2 ships sampling parallel lines (along- or cross-shelf) in opposite directions?

    • 2 ships sampling a bow tie pattern in between two isobaths.

    • 2 ships sampling parallel lines (along- or cross-shelf) in the same direction?

    • 3 ships sampling parallel isobaths in the same direction (e.g., Oceanus at ~100 m, Sproul at ~30 m and Kalipi at ~10 m)?

  • Jack: Calculate eddy cross-track transports (e.g., u’T’). Use as a metric.

General remarks:

  • Chris: Live radio communication: APL has one radio, Ken and Luc might have another one.

  • Chris: May be able to have live position information from an online product by NASA.

  • Jack: Daily evening meetings during experiment.

  • Jen: Headland eddies module will benefit greatly from aircrafts + ships + drifters synergies.


  • André:

    • Sample the 3 test boxes (North/South of Pt. Sal and off Pt. Sal) and write meso-/submesoscale module summary.

    • Ask Manu about hi-freq (5-15 min) model output. Also discuss with Ata.