Add generic level 1b and 2 ascat data readers

TUW-GEO / ascat

Read and visualize data from the Advanced Scatterometer (ASCAT) on-board the series of Metop satellites

https://ascat.readthedocs.io/

MIT License

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Add generic level 1b and 2 ascat data readers #31

Closed mazweg closed 5 years ago

mazweg commented 6 years ago

data reader classes for lvl1 and lvl2 to handle all formats from the EUMETSAT Data Center (bufr, native_eps, netcdf, hdf5).

Travis tests failing because of missing szf files (too big for github).

cpaulik commented 6 years ago

How big are the szf files?

mazweg commented 6 years ago

approx. 170MB - we will host a git repository with the test data on our own webserver soon

sebhahn commented 6 years ago

There are two problems w.r.t. to file size: (i) Github allows only files up to 100 MB and (ii) the bandwidth is only 1 GB per month, otherwise you have to pay. Our solution is now hosting the test data in a git repository on TUW GEO webserver. As soon as the new webserver is running we try to set this up correctly.

cpaulik commented 6 years ago

Gitlab.com might be an option for hosting the testdata. The limit there is 10GB with unlimited bandwith. Might be better for open source than a TUW GEO server that has to be maintained etc.

sebhahn commented 6 years ago

We will try if and how it works, because if gitlab.com is changing their limits at some point we have the same problem

sebhahn commented 5 years ago

@mazweg: Good work! :+1: here are some comments:

[x] Fix pep8 issues (e.g. line length only 80), add a pep8 check to your IDE
[x] Add copyright header to base.py
[x] Do not distinguish between Metop-A and Metop-B, maybe use a placeholder '?' that the same class can read Metop-A and Metop-B
[x] Check unused imports in level1.py and level2.py (timedelta, MultitemporalImageBase)
[x] Don't use such large ifs like in eps2generic, please create two functions for if and else clause
[x] Docstrings for last functions in eps_native.py and hdf5.py missing
[x] Add examples to the documention how to read a L1b and L2 file + simple plot of swath