RunCandles / TERRAIN LAB

FIELD NOTES / 05

Speed × net grade

Each dot is one distance window. Follow an observation back to the terrain.

Window observations

ENDPOINT NET GRADE (%)Click a dot to inspect ↗

Elevation along the route

Linked distance window

A measurement, not an explanation.

Net grade = smoothed net elevation change ÷ horizontal distance. Climb and descent are also shown independently, so a hill within a window remains visible even when its net change is small. GPS and elevation noise limit precision. Window speed includes all elapsed time, including pauses. Uphill > +1%, downhill < −1%; both boundaries count as flat. These observations do not imply cause or effort.