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Nga Thien Chung updated SDAP-481: --------------------------------- Status: WontFix (was: In Progress) > Enable internal compression for netcdf match up outputs > ------------------------------------------------------- > > Key: SDAP-481 > URL: https://issues.apache.org/jira/browse/SDAP-481 > Project: Apache Science Data Analytics Platform > Issue Type: New Feature > Components: nexus-analysis > Reporter: Stepheny Perez > Assignee: Riley Kuttruff > Priority: Minor > > From Vardis: > {quote}Here is a prior SPURS Saildrone example of the application of netCDF > internal compression .. > It uses the nccopy command with -d 5 parameter (deflate=compress at level 5) > applied to an existing netcdf file. > _$ nccopy -4 -d 5 > saildrone-gen_6-arctic_misst_2021-sd1058-20210706T000000-20211020T235959-5_minutes-v1.1638218824631.nc > new.nc_ > This reduced the file size from 43mb originally to 6.3mb. > I am sure there is a way of actually writing the compressed netCDF natively > from the outset with -d. > [https://www.unidata.ucar.edu/blogs/developer/en/entry/netcdf_compression] > (some info) > [http://climate-cms.wikis.unsw.edu.au/NetCDF_Compression_Tools] (python > package and general info on nc compression). > [https://docs.xarray.dev/en/latest/generated/xarray.Dataset.to_netcdf.html] > (xarray write netCDF - compression syntax/parameters mentioned) > {quote} -- This message was sent by Atlassian Jira (v8.20.10#820010)