How to compress the L2 output in SeaDAS

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zhigang
Posts: 67
Joined: Tue Nov 10, 2020 8:03 pm America/New_York

How to compress the L2 output in SeaDAS

by zhigang » Tue Jan 15, 2019 9:29 am America/New_York

Dear all,

I generated some L2 products of Landsat 8 OLI with SeaDAS 7.5.1, the working flow is ok, just one thing needs to be solved. One L2 output is ~800M for Landsat 8 OLI, it is so large. If I have lots of data to be processed in the near future, they will need large spaces of the disk. Therefore, I would like to inquire whether there is a method to compress them in the process of l2gen. I know that I can read and re-write the file with int32 type with HDF5 format, but this may change the structure of L2 product, to cause the failure in the next process in seadas.

Could someone give me suggestions?

Best Regards,
Zhigang

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b.detracey
Posts: 37
Joined: Tue Sep 29, 2015 11:10 am America/New_York

How to compress the L2 output in SeaDAS

by b.detracey » Wed Jan 23, 2019 10:31 am America/New_York

The L2 products are already compressed. NetCDF-4 added compression support and SeaDAS uses it. https://www.unidata.ucar.edu/blogs/developer/entry/netcdf_compression

zhigang
Posts: 67
Joined: Tue Nov 10, 2020 8:03 pm America/New_York

How to compress the L2 output in SeaDAS

by zhigang » Sat Jan 26, 2019 10:24 am America/New_York

Thanks Brendan. I have enlarged my disks to storage them.

Regards,
Zhigang

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