Lake Jersey Refinement Example Introduction

Lake Jersey Nesting Refinement Example

The Lake Jersey idealized example is used in ROMS to test the nesting algorithms for the Refinement Grids Super-Class. Various configurations of refined grids are possible including refinement ratio, telescoping grids, and nesting layers. Currently, there are four refined grids inside the coarse grid. The following table summarize the grid information:

Lake Jersey Grid Information
Grid	Mesh Size	Refinement Factor	Parent Imin	Parent Imax	Parent Jmin	Parent Jmax	Δx Δy	Grid NetCDF File
a	100x 80x8	-	-	-	-	-	500.0 m	lake_jersey_grd_a.nc
b	66x99x8	1:3 from a	9	31	12	45	166.6 m	lake_jersey_grd_b.nc
c	120x130x8	1:5 from a	34	58	19	45	100.0 m	lake_jersey_grd_c.nc|
d	114x60x8	1:3 from a	50	88	50	70	166.6 m	lake_jersey_grd_d.nc
e	132x60x8	1:3 from d	36	80	20	40	55.5 m	lake_jersey_grd_e.nc

Obtaining Test Cases

The test cases can be obtained using Subversion with the following command:

   svn checkout https://www.myroms.org/svn/src/test 

In this example we use files from the lake_jersey test case.

Nested Grid Locations

The labeled grids correspond to the example titles above. For Example, Lake Jersey ABDE is a multiple grid nesting setup using grids a, b, d, and e.

Lake Jersey Grid Information
Grid	Mesh Size	Refinement Factor	Parent Imin	Parent Imax	Parent Jmin	Parent Jmax	Δx Δy
a	100x 80x8	-	-	-	-	-	500.0 m
b	66x99x8	1:3 from a	9	31	12	45	166.6 m
c	120x130x8	1:5 from a	34	58	19	45	100.0 m
d	114x60x8	1:3 from a	50	88	50	70	166.6 m
e	132x60x8	1:3 from d	36	80	20	40	55.5 m

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