POD-DEIM Based Model Order Reduction for the Spherical Shallow Water Equations with Turkel-Zwas Finite Difference Discretization

Table 1

Average relative errors for each of the model variables. The POD bases dimension is 28 capturing more than 99.9% of the system energy. 60 DEIM points are chosen.

	POD solutions	DEIM solutions
Error𝑢	2.6050𝑒−003	4.2692𝑒−003
Error𝑣	3.3648𝑒−003	4.8253𝑒−003
Errorℎ	4.8412𝑒−005	8.2988𝑒−005