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- Examples of orthogonal and curvi-linear netCDF files of model results a la Delft3D:
http://coast-enviro.er.usgs.gov/thredds/catalog.html
The mapping methods for structured grids are:
- direct mapping: the dimensions can be of a coordinate type which can be identified only by the standard_name attribute. The dimensions must be of one the following two types:
- (latitude, longitude)
- (projection_x_coordinate, projection_y_coordinate): please add full (latitude, longitude) arrays too.
- indirect mapping:
- SHOULD be present if there is no direct mapping (i.e. dimensions are not of coordinate type)
- can be present when there is already a direct mapping. This happen for instance when the variable is defined on an :
- orthogonal locally projected (x,y) grid on which is it directly mapped, and the associated (latitude, longitude) grids are is added to meet the CF standard and also for convenience of the user so he does not need to map them himself with the coordinate system meta-information.
- orthogonal (latitude, longitude) grid on which is it directly mapped, and the associated locally projected (x,y) is added for convenience of the user so he does not need to map them himself with the coordinate system meta-information.
