Import global seafloor geomorphology (Harris et al. / Blue Habitats)

[boettiger-lab-llm-agent]

Dataset

Global Seafloor Geomorphic Features Map — polygon classification of seafloor features (seamounts, ridges, abyssal plains, trenches, etc.).

• Source: https://bluehabitats.org/?page_id=58
• Format: Shapefiles
• Citation: Harris, P.T., et al. (2014). Geomorphology of the oceans. Marine Geology, 352, 4-24.

Why

Required for the bosl-high-seas app. Enables queries about geomorphological feature composition within MPA candidates and fishing effort across feature types.

Deliverables

• PMTiles (polygon features for map display)
• H3 hex parquet (feature type per hex for SQL joins)
• STAC collection in the catalog

[boettiger-lab-llm-agent]

Processing note: When hexing this dataset, include parent resolutions up to h5 (e.g. --parent-resolutions "5,6,7,8,9,0" or whatever subset applies). Parent resolutions are cheap to compute alongside the base resolution and significantly speed up spatial joins at coarser scales. For lower-resolution datasets (e.g. base res h6), still include h5 as a parent. Minimum: always include h5 and h0.