openradar / openradar/PyDDA

Support for complex terrain

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Merged PRs (30d)
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Description

Milos Rompar has been using PyDDA to retrieve winds from a radar/lidar network where the domain includes a 1400 m hill where the radar is. Since we assume flat terrain in our retrieval, there would definitely be some inaccuracy in the winds since we do not consider the terrain.

I think adding a complex terrain constraint would be as simple as constraining the gradient of the cost function to be zero at and below the ground. I'm looking for people to work with on implementing such terrain maps so that we can test out such a feature.

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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.
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Research direction

No files, tests, or entry points are named in the issue. Start by locating the wind-retrieval cost function and determine how terrain maps could be represented; the work is complete when complex-terrain constraints are implemented and tested for the radar/lidar network case.

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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