CDM Attribute Conventions

Also see:


_ChunkSize

A Variable Attribute indicating what chunking to use to store the data in a file. Used when writing netCDF-4 files. When an HDF5/ netCDF-4 is read, this attribute is added to the variable's metadata.

_Compress

A Variable Attribute indicating if compression should be used when writing the variable. Used when writing netCDF-4 files and for ncstream. Currently the only valid value of the attribute is "deflate", indicating to use the deflate compression algorithm.

_Unsigned

The existence of this Variable Attribute means that a Variable's data is unsigned. Only used only for byte, short, and int data types. The value of the attribute is ignored, but by convention, should be set to true.

 


This document is maintained by Unidata. Send comments to THREDDS support. Last updated: November 2012