Sheet key
Western Archive
40 stations and 60 ties along one coast. Drag a mark to pin it. Drag open water to pan. Scroll or pinch to change scale.
Degree centrality
centralization 0.108
A station’s figure is its ties divided by every other station. Mean degree 3.0. Larger marks rank higher. Centralization is 0 when ties are spread evenly and 1 when one mark holds the sheet.
- HarbourRoadstead
- LightFixed mark
- StationTide gauge
- BankShoal
- WreckFoul ground
- CurrentSet and drift
Reheat lets go of pins. Freeze locks the sheet. Press / to search. Esc clears it.