Dixon Glacier Model Workbench

v0.1
Scenario
Projections Explorer

Dixon runoff to 2100

Scrub the scenario (top bar), warming transmission, thickness track, and climate model to see the ensemble runoff and when peak water lands. Uncertainty is the paired-posterior 5–95% band across draws — never a bare median.

Thickness track
Warming transmission
Climate model (GCM)
Runoff to 2100 · SSP2-4.5
This study — 5–95%Rounce 2023 — IQR (q25–q75)
Peak-water year · SSP2-4.5
Independent check · Rounce et al. 2023
Glacier geometry to 2100 · SSP2-4.5
Uncertainty decomposition · what moves peak water

Emissions scenario dominates peak-water timing — a 43-year span of median peak years from SSP1-2.6 to SSP5-8.5. Warming transmission moves it ~9 years; the thickness track barely a couple. The dual-track thickness disagreement — the single biggest structural uncertainty in the model, carried as two parallel ice-volume tracks the whole way through — turns out not to matter for when peak water lands. The bed governs post-peak longevity, not the peak year — a robustness win.

A global finding across all 56 runs — it doesn't change with the selectors above.