Advances in the NetCDF Data Model, Format, and Software - Unidata

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Nested types • Compound types may include other variable-length types or compound types as members • Variable-length types may include other compound types or variable-length types as members • Result is a potentially infinite number of user-defined data types • Handling this in software can be new or intimidating to software developers
Guidance for developers • Add support for netCDF enhanced data model features incrementally – new primitive types: unsigned numeric types and strings – nested Groups (simple recursion) – enumeration types (easy, no nesting) – opaque types (easy, no nesting) – compound types with only primitive members – compound types with fixed-size array members – variable-length arrays of primitives – compound types with members of user-defined type – variable-length arrays of user-defined types • Look at nccopy for examples that read or write netCDF-4 data with all these features
Page 1 and 2: Advances in the NetCDF Data Model,
Page 3 and 4: NetCDF: more than a format • Data
Page 5 and 6: The netCDF “classic” data model
Page 7 and 8: NetCDF classic format Strengths Lim
Page 9 and 10: NetCDF enhanced data model Strength
Page 11 and 12: Recent advances Standards Refactori
Page 13 and 14: NetCDF-Java/Common Data Model archi
Page 15 and 16: Performance improvements • Refact
Page 17 and 18: Experience developing nccopy utilit
Page 19 and 20: Last year: game of “chicken”; w
Page 21 and 22: Concluding Remarks • Data provide
Page 23 and 24: Extra Slides
Page 25 and 26: Groups • Like directories in a fi
Page 27: Compound types Uses include: • Re

Advances in the NetCDF Data Model, Format, and Software - Unidata

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