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Real-time Systems. Currently running four separate configurations: SCB - (upgraded April 2010: started our own WRF run, increased length of forecast to 72 hours, ensemble forecasts) MB - restarted 3-level configuration Oct. 1, 2010 CA - started Aug. 15, 2010 PWS

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slide1

Real-time Systems

Currently running four separate configurations:

SCB

- (upgraded April 2010: started our own WRF run,

increased length of forecast to 72 hours, ensemble forecasts)

MB

- restarted 3-level configuration Oct. 1, 2010

CA

- started Aug. 15, 2010

PWS

- restarted Feb. 8, 2010

slide2

2011 Papers

Farrara, J. D., Y. Chao, Z. Li, X. Wang, X. Jin, H. Zhang, P. Li, Q. Vu, P. Q. Olsson, G. C. Schoch, M. Halverson, M. A. Moline, J. C. McWilliams, F. A. Colas, 2011: A data-assimilative ocean forecasting system for the Prince William Sound and an evaluation of its performance during Sound Predictions 2009. Con. Shelf Research, submitted.

Ma, H-Y., M. Köhler, J.-L. F. Li, J. D. Farrara, C. R. Mechoso, R.M. Forbes and D. E. Waliser, 2011: Evaluation of an ice cloud parameterization based on a dynamical-microphysical lifetime concept using CloudSat observations and the ERA-Interim reanalysis. JGR, submitted.

Wang, X., Y. Chao, H. Zhang, J. D. Farrara, Z. Li, K. Park, F. Colas, J. C. McWilliams, C. Paternostro, C. K. Shum, Y. Yi, C. Schoch, P. Q. Olsson, 2011: Modeling tides in Prince William Sound, Alaska and their influence on the circulation. Con. Shelf Res., submitted.

Li, Z., Y. Chao, J. D. Farrara and J. C. McWilliams, 2011: Impacts of distinct observations during the 2009 Prince William Sound Field Experiment: A data assimilation study. Con. Shelf Res., submitted.

Li, Z., Y. Chao, J. C. McWilliams, K. Ide and J. D. Farrara, 2011: A multi-scale, three dimensional variational data assimilation scheme and its application to coastal oceans. Quart. J. Roy. Meteor. Soc., submitted.

Carvalho, L. M. V., C. Jones, T. Dickey, C. J. Zappa, Y. Chao and J. D. Farrara, 2011: Mesoscale Meteorological Conditions during the Radiance in a Dynamic Ocean (RaDyO) Santa Barbara Field Experiment. JGR, submitted.

slide3

Real-time Systems

Future configurations:

SPURS

- Jan 2012 ?

GOMEX ?

- ??

slide4

Real-time Systems

Issues:

- Storing output (especially long-term storage)

- Managing data flows (incoming/outgoing)

- Should we continue running the MB configuration?

slide5

MB

CA

slide9

“Altimeter-derived

variability of surface

velocities in the

California Current

System”,

T. Strub, T. Chereskin,

P. Niiler, C. James,

M. Levine,

JGR, 1997, 12,727-

12,748

slide11

Hourly – includes tides

Nov 2010

Daily mean – tides filtered

Nov 2010

Hourly – includes tides

slide12

Hourly – includes Tides

Oct 2010

Hourly – includes Tides

Dec 2010

slide14

Strub, P. T., T. K. Chereskin, P. P. Niiler, M. D. Levine, and C. James, 1997:

Altimeter-derived variability of surface velocities in the California Current System: Part 1,

Evaluation of TOPEX altimeter velocity resolution. J. Geophys. Res., 102, 12727-12748.

Besides evaluating altimeter performance, the study reveals several

properties of the circulation in the California Current System:

(1) velocity components are not isotropic but are polarized, strongly so at some locations,

(2) there are instances of strong and persistent small-scale spatial variability in the velocity*, and

(3) the energetic region of the California Current is isolated and surrounded by a region of lower energy

starting 500-700 km offshore.

*Quote: “Persistent small-scale variability occurs in the offshore region of the CCS, with opposing velocities of +,- 20 cm/s found within distances of 15-30 km.”