Numerical Modeling Study of the Gulf of Mexico Basin: Skill Assessment.
1997
Lipphardt, B. L | Jr
This report contains the results of an assessment of a three dimensional primitive equation model simulation of the Gulf of Mexico for the year 1993, using surface drifter observations collected as part of the SCULP program. The assessment focuses mainly on the surface circulation of the Louisiana Texas shelf. The model is fully thermodynamic, and it assimilates both TOPEX and ERS-l altimetric data. The drifter observations were used to assess the model's ability to accurately describe the surface circulation on the Louisiana-Texas shelf. Twenty-six model drifter trajectories were used to make side by side comparisons between the model and observations on this shelf. The statistical properties of these 26 modeled and observed drifters were also compared. This assessment shows that the model produces many mesoscale flow structures similar to those seen in the observations. Nevertheless, the model generally does not well describe specific observed shelf circulation events. Errors in the wind field used to force the model are suspected to be an important cause of these discrepancies. Apparently, these wind forcing errors masked any underlying problems in the model's ability to describe the dynamics on the shelf.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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