Attributes { NC_GLOBAL { String title "const_2d_asm_Nx : MERRA DAS 2d constants"; String Conventions "COARDS", "GrADS"; String dataType "Grid"; String history "Wed Aug 09 14:34:00 GMT 2023 : imported by GrADS Data Server 2.2"; } lon { String grads_dim "x"; String grads_mapping "linear"; String grads_size "540"; String units "degrees_east"; String long_name "longitude"; Float64 minimum -180.00000000000; Float64 maximum 179.33333332974; Float32 resolution 0.6666667; } lat { String grads_dim "y"; String grads_mapping "linear"; String grads_size "361"; String units "degrees_north"; String long_name "latitude"; Float64 minimum -90.00000000000; Float64 maximum 90.00000000000; Float32 resolution 0.5; } time { String grads_dim "t"; String grads_mapping "linear"; String grads_size "1"; String grads_min "00z01jan1979"; String grads_step "1mn"; String units "days since 1970-1-1 00:00:0.0"; String long_name "time"; String minimum "00z01jan1979"; String maximum "00z01jan1979"; } phis { Float32 _FillValue 9.9999999E14; Float32 missing_value 9.9999999E14; String long_name "surface geopotential "; } sgh { Float32 _FillValue 9.9999999E14; Float32 missing_value 9.9999999E14; String long_name "standard deviation of topography for gravity wave drag "; } frlake { Float32 _FillValue 9.9999999E14; Float32 missing_value 9.9999999E14; String long_name "fraction of lake type in grid box "; } frland { Float32 _FillValue 9.9999999E14; Float32 missing_value 9.9999999E14; String long_name "fraction of land type in grid box "; } frlandice { Float32 _FillValue 9.9999999E14; Float32 missing_value 9.9999999E14; String long_name "fraction of land ice type in grid box "; } frocean { Float32 _FillValue 9.9999999E14; Float32 missing_value 9.9999999E14; String long_name "fraction of ocean in grid box "; } }