Atlas is an ECMWF library for parallel data-structures supporting
 unstructured grids and function spaces, with the aim to investigate
 alternative more scalable dynamical core options for Earth System models,
 and to support modern interpolation and product generation software.
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 Atlas is predominantly C++ code, with main features available to Fortran codes
 through a F2003 interface.
 ECMWF is the European Centre for Medium-Range Weather Forecasts.