pytroll / pytroll/pyresample

Add conservative resampler

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Python
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Description

The conservative resampler is

The value of a destination cell is calculated as the weighted sum of the values of the source cells that it overlaps.

according to ESMPy.

It's also supported in xesmf.

If we can add it to pyresample, it would be nice.

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

The issue names no files, tests, or entry points. Start by locating pyresample's existing resampler implementations, then compare their interfaces with the conservative definitions in ESMPy and xesmf. Done means pyresample supports a conservative resampler that calculates destination values from weighted overlapping source cells.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
data
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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