Fig. 2.2 - The PIRCS 1/2-degree latitude-longitude grid. Every second grid point of the inner domain is marked with a +; every second grid point of the outer domain (forcing frame) is marked with a o. Orientation of the inner domain: Central point (LAT=26, LON= 51) (37.5 N, 100.0 W) Lower left corner (LAT= 1, LON= 1) (25.0 N, 125.0 W) Upper right corner (LAT=51, LON=101) (50.0 N, 75.0 W)