GODAE Final Symposium Ocean Briefings Real-time Ocean Brief North West Atlantic Contributors: Naval Research Laboratory Mercator-Ocean Fisheries and Oceans Canada
GODAE Final Symposium Ocean Briefings Real-time Ocean Brief North West Atlantic Contributors: Naval Research Laboratory Mercator-Ocean Fisheries and Oceans.
Jan 05, 2016
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
GODAE Final Symposium
Ocean Briefings
Real-time Ocean BriefNorth West Atlantic
Contributors:Naval Research Laboratory
Mercator-OceanFisheries and Oceans Canada
GODAE Final Symposium
Ocean Briefings
Mercator: • 1/12˚ Atlantic and Mediterranean (PSY2V3)• Runs once per week, creates a 2-week forecast
HYCOM: • 1/12˚ global, pre-operational• Runs daily: 5-day hindcast and 5-day forecast*
C-NOOFS: • 1/4˚ Northwest Atlantic, quasi-operational• Runs daily, creates a 5-day forecast
*Currently HYCOM’s slot has been reduced and the system does not have enough time to run up to the nowcast
GODAE Final Symposium
Ocean Briefings
‘Events’ of interest
Gulf of Mexico: deep Loop Current penetration with the potential for an eddy shedding event (Mercator)
Gulf Stream: HYCOM’s performance of this western boundary current
Labrador Sea: southward advection of cold water at shallow depths and extreme temperature gradient (C-NOOFS)
GODAE Final Symposium
Ocean Briefings
1/12˚ HYCOM SSH with drifting buoys overlaid
Animation from 10 October – 8 November 2008; only temperature assimilated from drifting buoys
GODAE Final Symposium
Ocean Briefings
Gulf of Mexico: Imminent eddy shedding event?1/12˚ Mercator SSH analyses
15 Oct 2008 - analysis 22 Oct 2008 - analysis
29 Oct 2008 - analysis 5 Nov 2008 - analysis
GODAE Final Symposium
Ocean Briefings
Gulf of Mexico: Imminent eddy shedding event?1/12˚ Mercator SSH analyses
5 Nov 2008 - analysis
1 week forecast valid 4 Nov 2008
2 week forecast valid 4 Nov 2008
GODAE Final Symposium
Ocean Briefings
5 Nov 2008 - analysis
Gulf of Mexico: Imminent eddy shedding event?1/12˚ Mercator SSH analyses
1 week forecast valid 12 Nov 2008
2 week forecast valid 19 Nov 2008
Observations assimilated into HYCOM via NCODA9 October – 8 November 2008
GODAE Final Symposium
Ocean Briefings
Gulf StreamHYCOM SST with independent IR frontal analysis overlaid
Frontal analysis < 4 days old = white, analysis ≥ 4 days old = black
GODAE Final Symposium
Ocean Briefings
Gulf StreamHYCOM SST with independent IR frontal analysis overlaid
20 Oct 2008 26 Oct 2008
28 Oct 2008 30 Oct 2008
GODAE Final Symposium
Ocean Briefings
Labrador SeaC-NOOFS temperature and currents at 00 m
30 October 2008
GODAE Final Symposium
Ocean Briefings
30 October 2008Very sharp subsurface temperature gradient
Labrador SeaC-NOOFS temperature and currents at 50 m
GODAE Final Symposium
Ocean Briefings
Labrador SeaAvailable profiles
• Identified a cluster of XBTs taken in the vicinityof the sharp subsurface temperature gradient
• Can we use these to verify this phenomenon?
GODAE Final Symposium
Ocean Briefings
Labrador SeaXBTs (red) compared to GDEM3 climatology (green)
51.88˚ W, 43.47˚N 52.65˚ W, 44.05˚N
0 15105 20˚C0 15105 20˚C
0
80
40
60
20
0
80
40
60
20
GODAE Final Symposium
Ocean Briefings
Acknowledgements
Related Documents
