1. MSEAS Summary of Work
Processed atmospheric forcing flux analyses and forecasts from NCEP NAM 32km model
Created a web page for the project with the data we have collected and processed so far:
Shows profiles collected, SST snapshots, buoy SST time-series, Jenifer Clark's Gulf Stream charts, etc.
Main research page:
Set up some possible ocean scenario simulations using our MIT-MSEAS modeling system
One initialized based on HYCOM simulation fields for that end of June 2009 week
Corrected HYCOM fields using the limited data we have
Added tidal forcing (so as to generate internal tides)
Ran 1km-resolution ocean simulations for the period around June 30, 2009, for different initial conditions and parameters (tides, atmospheric forcing, etc.)
Provides possible scenarios
Analyzed the results this week and submitted more simulations
Compared MIT-MSEAS initialization with HYCOM fields
Compared simulations with buoy SST data, image-derived SST data, and T & S profile data

2. MIT-MSEAS 1 km domain over bathymetry
Present MSEAS Modelling Set-Up
Bathymetry: NOAA Coastal Relief, Smith and Sandwell
Horizontal resolution: 1 km Vertical Discretization: 100 optimized vertical levels
Tidal Forcing: high resolution TPXO8-Atlas from OSU
Reprocessed for higher res. bathy./coastline & quadratic bot. drag
Atmos. Forcing: 32 km NCEP NAM (4 forecasts/day)
1/12o HYCOM Initial Conditions (corrected)
Vel. optimized for high-res. coasts/bathy. [Haley et al, 2015]
Possible future upgrades:
Nesting/Tiling sub domains
ESSE for ensemble forecasting
Dynamically-Orthogonal PEs for surface ducts
GMM-DO filter and smoother for ocean-physics- acoustics inversion & tomography
Bayesian mutual information fields
MIT-MSEAS 1 km domain over bathymetry

3. Derived Wind Stress Forcing (from NCEP NAM)
June 23
June 24
June 25
June 26
June 27
June 28
June 29
June 30
July 1
July 2
1-day average wind stress (dyne/cm2) for June 23-July 2, 2009
Wind stress values computed from wind velocity analyses fields (NCEP NAM analyses: 32 km spatial resolution)
1-h time resolution; variability at time scales less than 1 h not provided
1 N/m2 = 10 dyne/cm2

4. Derived Wind Stress Forcing (from NCEP NAM): Notable June-July 2009 “Wind Events”
dyne/cm2
32 km data resolution
Strong
wind event on
June 23 00:00Z
Date
Time (Z)
Strength
June 23
00-24
Strong
June 26 12Z – June 27 6Z
Minor
June 29 18
June 30
July 1
06-18
July 3
00-06
July 4 00Z – July 5 12Z
Moderate
Minor wind event on June 30 18:00Z
Moderate
wind event on July 4 18:00Z
Data collection took place on June 30.
1 N/m2 = 10 dyne/cm2

5. June/July 2009 Synoptic data for model input or validation
Data Type
Variables
Duration
ARGO
T & S
2009/06/19 12:21Z – 2009/07/19 13:09Z
GTSPP
2009/06/01 00:00Z –
2009/07/31 23:45Z
NMFS
2009/06/01 01:05Z – 2009/07/28 00:51Z
WOD CTD
WOD XBT T
2009/06/04 13:26Z – 2009/07/23 22:13Z
OASIS XBT
2009/06/30
NDBC Buoys
SST
2009/06/01 – 2009/07/31
Satellite-based SST
2009/06/29 10:30Z – 2009/06/30 21:26Z
Data used as inputs for ICs, param., DA
Lots of work into MIT-MSEAS data processing
Locations of data (by type)
between June 1 and July 31, 2009

6. June 22 – July 7, 2009 Synoptic data for model input or validation
Data Type
Variables
Duration
GTSPP
T & S
2009/06/22 00:00Z –
2009/07/07 00:00Z
WOD XBT T
2009/06/22 00:01 – 2009/07/06 14:35Z
OASIS XBT
2009/06/30
NDBC Buoys
SST
2009/06/22 – 2009/07/07
Satellite-based SST
2009/06/29 10:30Z – 2009/06/30 21:26Z
Data used as inputs for ICs, param., DA
Lots of work into MIT-MSEAS data processing
Locations of data (by type)
between June 22 and July 7, 2009

7. 30m Scaled Vorticity from MIT-MSEAS

8. Effect of our MSEAS data correction on HYCOM
Sound speed along OASIS XBT section
Data
30m Sound Speed
Uncorrected Data
Corrected Data
Data corrections to HYCOM introduce colder deep water on shelf near XBT region and also sharper gradients, both near front and vertically.  Sound speed gradients similarly enhanced.

9. Effects of tides on sound speed from MIT-MSEAS
Sound speed along
OASIS XBT section
30m sound speed

10. Scenarios
Tides/internal tides. Needed for significant changes in C near XBTs
Initialization time (generate high-res features, underway)
starting June 26 or 28 qualitatively similar by June 30
Bottom Friction. (decreasing permits slightly more movement of foot of front)
Shelfbreak front. (varying location, steepness. Underway)
Effects of Hudson Canyon (underway)
Effects of Atmospheric forcing (underway)