MEASURED — DECISION_USEFUL_CHANGE_DETECTED
Twin Bridges RDF (IN)
Volume change between 2011 and 2017, measured from two independent real LiDAR epochs, calibrated against a stable-terrain control ring.
| Field | Value |
|---|---|
| Epochs | 2011 → 2017 |
| Volume change | 6,757.2 ± 30.1 m³ |
| Coverage | 97.6% |
| Stable-control sigma | 0.1753 m |
| Classification | DECISION_USEFUL_CHANGE_DETECTED |
Machine-readable measurement (full evidence, same numbers as this page):
lmop-567.json
Method: measure_physical_change() — same unmodified function used across every site in this program, real LiDAR/3DEP epochs via the public hobuinc/usgs-lidar EPT index, calibrated against a stable-terrain control ring. Synthetic 200x200m buffer on the LMOP-declared coordinate — never the legal parcel boundary. Full method: /products/physical-change/.