{
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  "modifications": "bilinear resampling; gridSpacingMeters records sampling, not source accuracy; display scaling recorded in city metadata",
  "center": [
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  "sourceSizeKm": 32,
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  "datumSubtractedMeters": 25,
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  "osmAttribution": "© OpenStreetMap contributors, ODbL",
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  "terrain": "Independent 62.5m sampled DEM, Gaussian 0.85, 3.2x relief. Sampling is not source accuracy; not lidar.",
  "urban": "Mapped residential land cover, no generated city grid.",
  "landmarks": "Chaoran Tower at mapped building location; stylized multistory pavilion, not measured roof/structure reconstruction. Display height based on 51.7m, enlarged 4x.",
  "sources": [
    "https://www.jinan.gov.cn/col126669/art/2025/art_126669_5030534.html",
    "https://jnly.jinan.gov.cn/col38754/art/2023/art_38754_3349388.html",
    "https://jnly.jinan.gov.cn/col117783/art/2025/art_117783_4779721.html",
    "https://www.jinan.gov.cn/col112948/art/2024/art_112948_1901.html"
  ]
}