© Crown copyright Met Office Boundary conditions The three dimensional grid of a GCM has no lateral (North- South, East-West) boundaries. The upper bo
{"Image DocumentName": "Boundary conditions", "Image ImageDescription": "The three dimensional grid of a GCM has no lateral (North- South, East-West) boundaries. The upper boundary is the end of the atmosphere where it contacts outer space. The lower boundary is either the surface of the land or the bottom of the ocean. As such the GCM (and RCM) require information about the topography of the Earth\u2019s surface, called surface boundary conditions. As RCMs model a limited area, they have an additional requirement of having input data provided for them at their outside edges, i.e. their lateral boundaries. \u00a9 Crown copyright Met Office. \u00a9 Crown copyright Met Office. 35.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}