Attributes { X { String standard_name "longitude"; Float32 pointwidth 0.25; Int32 gridtype 0; String units "degree_east"; } Y { String standard_name "latitude"; Float32 pointwidth 0.25; Int32 gridtype 0; String units "degree_north"; } WHMAX { String units "m"; String long_name "maximum significant wave height"; Float32 missing_value 9999.9902; } NC_GLOBAL { String Conventions "IRIDL"; } }