Showing entries tagged [compression]

Adding Compression to NetCDF-3 (Classic)

This document proposes adding compression to the netcdf-3 (aka classic) file format. The proposal has numerous limitations because of the nature of the existing netcdf-3 format.

The algorithm and data format proposed here requires re-writing an existing netcdf-3 file to move it to the new format. In effect, the re-written file becomes archival (read-only).

[Read More]

Part 5: Converting GRIB to NetCDF-4

Trying compression algorithms other than deflate on GRIB data.[Read More]

GRIB bitmaps are not such a good idea

Can you store data better than with just 1 bit? Way better.[Read More]

Compression by Bit-Shaving

How to limit precision on floating point numbers by setting lower bits of the mantissa to 0.[Read More]

Compression by Scaling and Offfset

How to limit precision on floating point numbers with scale/offset and packed integers.[Read More]
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