Attributes { X { Float32 pointwidth 1.0; Float32 modulus 360.0; Int32 gridtype 1; String units "degree_east"; } Y { Float32 pointwidth 1.0; Int32 gridtype 0; String units "degree_north"; } Z { Int32 gridtype 0; String units "m"; } PO4 { Float32 missing_value NaN; String history "World Ocean Atlas CD-ROM, Levitus et al., 1994"; String long_name "Phosphate"; String units "micromolar"; } NC_GLOBAL { String Conventions "COARDS"; } }