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Army Corps briefs Juneau on glacier‑outburst modeling and short/medium/long‑term flood measures
Summary
USACE Alaska District engineers told the Juneau assembly that limited observational records and constrained bathymetry make GLOF peak discharge estimates uncertain; they outlined short‑term construction, medium‑term concepts and a draft technical study due to Corps HQ in early August.
Engineers from the U.S. Army Corps of Engineers told the Juneau Assembly that model estimates for glacier lake outburst floods (GLOFs) carry wide confidence intervals because of limited period‑of‑record flood data and incomplete bathymetric surveys.
Mike Records, the Corps’ Alaska District hydraulic engineer and technical lead, said annual exceedance probability (AEP) events for the Mendenhall system were derived from physics‑based modeling of the basin and limited observations. “There is a lot of uncertainty in the system,” he…
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