SYNTHETIC STRUCTURE FOR ASYMMETRIC EDDIES IN THE OCEAN

• US 20100017176A1
• Filed: 07/21/2009
• Published: 01/21/2010
• Est. Priority Date: 07/21/2008
• Status: Abandoned Application

• Current Assignee: University Of Massachusetts
• Original Assignee: University Of Massachusetts
• Inventors: Gangopadhyay, Avijit
• Application Number:
  US12/506,280
• Publication Number:
  US 20100017176A1
• Time in Patent Office: Days
• US Class Current: 703/5
• CPC Class Codes: G06F 2111/10 Numerical modelling
• CPC Class Codes: G06F 30/20 Design optimisation, verification or simulation optimisation, verification or simulation of circuit designs G06F30/30

Abstract

A system and method is provided for an asymmetric formulation whereby multiple water masses mix together and generate an ‘eddy-like’ feature. Given the core and the shore profiles, embodiments produce a three-dimensional eddy representation for a particular ocean region based on three (core, inshore and offshore) specified profiles. The formulation employs parameter-based feature models and is generalized to ocean regions having asymmetric eddy water masses. Embodiments apply to regions in the global coastal ocean, providing nowcasting and forecasting in any oceanic region where eddies are part of the overall circulation. Examples of such eddies are off of Cape São Tomé (CST) and Cape Frio (CF) along the southeastern coast of Brazil.

Claims

1. A system for representing asymmetric eddy properties, said system comprising:

an input component that receives hydrographic property profiles comprising inshore, core, and offshore data;

a processing component that generates asymmetric eddy properties comprising temperature and salinity from said hydrographic property profiles; and

a display component that generates output of said asymmetric eddy properties.

2. The system of claim 1, wherein said hydrographic property profiles represent at least one region.

3. The system of claim 1, wherein said processing component comprises an eddy feature model (EFM).

4. The system of claim 1, wherein said processing component comprises a generalized tracer formulation.

5. The system of claim 1, wherein said processing component comprises asymmetry parameter gamma (γ

).

6. The system of claim 5, wherein said asymmetry parameter gamma comprises seasonal variations.

7. The system of claim 5, wherein said asymmetry parameter gamma comprises regional variations.

8. The system of claim 4, wherein said generalized tracer formulation comprises a relationship T(ρ

,z,θ

)=T_k(z,θ

)[1−

exp(−

r/R)]+T_c(z) exp(−

r/R)

9. The system of claim 1, wherein said processing component comprises an internal Rossby deformation radius.

10. The system of claim 2, wherein said at least one region comprises southeastern Brazil (SEBRA).

11. The system of claim 2, wherein said at least one region comprises at least one of Cabo Frio Eddy (CFE), Cabo Sã

o Tomé

Eddy (CSTE), and Vitó

ria Eddy (VE).

12. The system of claim 2, wherein said at least one region comprises at least one of Gulf of Maine, Gulf of Alaska, Gulf of Mexico, Caribbean Sea, and Norwegian Sea.

13. The system of claim 1, wherein said generated output comprises a nowcast of said asymmetric eddy properties.

14. The system of claim 1, wherein said hydrographic property profiles comprise Ecosystem Dynamics of the Continental Shelf Region of the western South Atlantic (DEPROAS) data.

15. A method for representing asymmetric eddy properties, said method comprising the steps of:

providing asymmetry parameter gamma (γ

);

providing edge profile information;

selecting a feature model (FM);

loading an eddy profile;

selecting a grid;

selecting profile dimension type;

implementing asymmetric eddy equation for said asymmetry parameter gamma (γ

), said edge profile information, said feature model, said eddy profile, said grid, and said profile dimension type;

plotting eddy properties; and

generating output from said eddy properties.

16. The method of claim 15, comprising edge profile information given by T_k(z,θ

)=T_i(z)+[(T_o(z)−

T_i(z))/2]exp(θ

/γ

)(1+cos θ

).

17. The method of claim 15, wherein said step of selecting a feature model (FM) comprises a Brazil current feature model (BCFM).

18. The method of claim 15, wherein said step of selecting a feature model (FM) comprises a mean profile.

19. The method of claim 15, wherein said generating output step comprises at least one of storing results for future retrieval, displaying results, and printing results.

20. A method for representing asymmetric eddy properties, said method comprising the steps of:

providing asymmetry parameter gamma (γ

);

providing edge profile information comprising relationship T_k(z,θ

)=T_i(z)+[(T_o(z)−

T_i(z))/2]exp(θ

/γ

)(1+cos θ

);

selecting a Brazil current feature model (BCFM);

loading an eddy profile;

selecting a grid file;

selecting profile dimension type;

implementing asymmetric eddy equation for said asymmetry parameter gamma (γ

), said edge profile information, said Brazil current feature model, said eddy profile, said grid file, and said profile dimension type, wherein said implementing comprises a generalized tracer formulation T(ρ

,z,θ

)=T_k(z,θ

)[1−

exp (−

r/R)]+T_c(z)exp(−

r/R);

plotting eddy properties comprising temperature and salinity from said equation implementation; and

generating output comprising at least one of storing results for future retrieval, displaying results, and printing results.