dem_curvature — DEM `surface` op

• Data kinds: depth → image2d

• Call: import demops; demops.dem_curvature(dem, cell_size, kind='profile') (or opsdem.get("dem_curvature"))

Usage

> This operator's description has not been translated yet. The original text follows as it is.

曲率 [1/m]。`kind は "profile"(断面) / "planform"(平面) / "total"`。

Zevenbergen & Thorne (1987) の 2 次曲面当てはめ。断面曲率は流下方向の

凹凸(加速・減速)、平面曲率は等高線の曲がり(集中・発散)を表す。

Detailed usage guide

• dem_terrain_analysis family guide

References (sample data, literature)

• Sample-data catalog (download URLs / licences) — 2-D uses skimage.data (BSD/public domain) plus synthetic images; 3-D lists download URLs for real data sources (Stanford, PDS, …).

• Operator provenance and references — the sources of the research/methods this op family came from.

• The canonical algorithm (author, year) and its uses are named in the family usage guide above.

Runnable examples (verified samples that actually call this op)

• poc_dem_terrain — py -3.11 examples/poc_dem_terrain.py

Ops the type connects to (they accept `image2d` as input)

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Same category (`surface`)

dem_slope · dem_aspect · dem_roughness · dem_tpi

*Provenance: demops.py — DEM operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

dem_curvature — DEM surface op