Showing entries tagged [compression]

Part 4: Converting GRIB to NetCDF-4

Some details on using deflate for compressing GRIB-2 data, with a comparision to JPEG-2000 wavelet compression.[Read More]

Part 3: Converting GRIB to NetCDF-4

Trying out deflate compression on GRIB-1 data. [Read More]

Part 2: Converting GRIB to NetCDF-4

May I have the envelope, please?[Read More]

Converting GRIB to NetCDF-4

Rewriting GRIB files into NetCDF/CF, part 1.

[Read More]

NetCDF Compression

The steady state of disks is full. --Ken Thompson

Introduction

From our support questions, it appears that the major feature of netCDF-4 attracting users to upgrade their libraries from netCDF-3 is compression. The netCDF-4 libraries inherit the capability for data compression from the HDF5 storage layer underneath the netCDF-4 interface. Linking a program that uses netCDF to a netCDF-4 library allows the program to read compressed data without changing a single line of the program source code. Writing netCDF compressed data only requires a few extra statements. And the nccopy utility program supports converting classic netCDF format data to or from compressed data without any programming.

[Read More]
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