jenkfgdas_ecen_master.ecf (GFS v17) — Deep-Dive Analysis

Path: ecf/scripts/enkfgdas/analysis/recenter/jenkfgdas_atmos_ens_recenter_master.ecf | Date: 2026-06-11 Note: Renamed from ecen_master to atmos_ens_recenter_master in v17.

Summary

EnKF recentering (ECEN) — recenters ensemble member analysis increments around the high-resolution deterministic analysis. Per-group _master template. Calls a recentering J-Job.

Resources: (varies by platform resource config)

Modules: gsi | J-Job: EnKF recenter J-Job

Purpose

Recenters the ensemble mean analysis to match the deterministic (higher-resolution) GSI analysis, maintaining ensemble spread while improving the mean state. Critical for hybrid-EnVar DA performance.