Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Improve SEVIRI metadata documentation #2915

Merged
merged 3 commits into from
Sep 30, 2024
Merged

Improve SEVIRI metadata documentation #2915

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
d8bae60
Improve SEVIRI metadata documentation
sfinkens Sep 30, 2024
3d15b3f
Fall back to conda
sfinkens Sep 30, 2024
6a4f2af
Pin mamba version
sfinkens Sep 30, 2024
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion .github/workflows/ci.yaml
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -41,7 +41,7 @@ jobs:
miniforge-version: latest
python-version: ${{ matrix.python-version }}
activate-environment: test-environment
mamba-version: "*"
mamba-version: "1.5.10"
channels: conda-forge

- name: Set cache environment variables
Expand Down
22 changes: 17 additions & 5 deletions satpy/readers/seviri_base.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -153,9 +153,21 @@
scn['IR_108']['y'] = mi
scn['IR_108'].sel(time=np.datetime64('2019-03-01T12:06:13.052000000'))

* Raw metadata from the file header can be included by setting the reader
argument ``include_raw_metadata=True`` (HRIT and Native format only). Note
that this comes with a performance penalty of up to 10% if raw metadata from
* HRIT and Native readers can add raw metadata from the file header, such
as calibration coefficients, to dataset attributes. Use the reader keyword
argument ``include_raw_metadata``. Here's an example for extracting
calibration coefficients from Native files.

.. code-block:: python

scene = satpy.Scene(filenames,
reader='seviri_l1b_native',
reader_kwargs={'include_raw_metadata': True})
scene.load(["IR_108"])
mda = scene["IR_108"].attrs["raw_metadata"]
coefs = mda["15_DATA_HEADER"]["RadiometricProcessing"]["Level15ImageCalibration"]

Note that this comes with a performance penalty of up to 10% if raw metadata from
multiple segments or scans need to be combined. By default, arrays with more
than 100 elements are excluded to limit the performance penalty. This
threshold can be adjusted using the ``mda_max_array_size`` reader keyword
Expand All @@ -164,8 +176,8 @@
.. code-block:: python

scene = satpy.Scene(filenames,
reader='seviri_l1b_hrit/native',
reader_kwargs={'include_raw_metadata': True,
reader='seviri_l1b_native',
reader_kwargs={'include_raw_metadata': True,
'mda_max_array_size': 1000})

References:
Expand Down
Loading