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Run3 load and preprocess spatial data

Skill cxcscmu/SkillLearnBench/skills/b3-teacher-feedback-gemini-3.1-flash-lite-preview/earthquake-plate-calculation/run3_load_and_preprocess_spatial_data

Load earthquake GeoJSON and plate boundary datasets, and ensure consistent projection for distance analysis.From its SKILL.md

Install
npx -y skills add cxcscmu/SkillLearnBench --skill run3_load_and_preprocess_spatial_data

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SKILL.md

0.9 KB, 177 tokens by cl100k_base, as published. Nobody here has run it

To accurately calculate distances, both the earthquake points and the tectonic plate boundaries must be reprojected into an equal-area projected coordinate system (e.g., EPSG:6933 for global equal-area) to ensure distance measurements are in meters.

  1. Load earthquakes_2024.json into a GeoDataFrame, setting the geometry from coordinates and EPSG:4326.
  2. Load PB2002_boundaries.json and PB2002_plates.json.
  3. Filter PB2002_boundaries to select only those segments that border the "Pacific" plate (checking the LeftPlate and RightPlate attributes).
  4. Project all GeoDataFrames to a consistent meters-based CRS.
  5. Use unary_union on the filtered boundary GeoSeries to create a single geometry object representing the entire Pacific plate boundary perimeter.

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Just SKILL.md. No reference files, no scripts.

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