jgfs_atmos_product_master.ecf (GFS v17)

Branch / tenant: dev/gfs.v17 (gw_v17) Path: ecf/scripts/gfs/product/atmos/product/jgfs_atmos_product_master.ecf Analysis date: 2026-06-11

---

Summary

jgfs_atmos_product_master.ecf is the NCO production ecFlow task template that generates standard atmospheric GRIB2 products from GFS forecast output — the primary product generation step that creates the operational 0.25/0.50/1.00-degree pressure-level and flux GRIB2 files distributed worldwide. Per-hour _master template. Calls the shared JGLOBAL_ATMOS_PRODUCTS J-Job.

---

1. Resources & Configuration

Field	Value
PBS resources	1 node, 24 mpiprocs/cpus, exclusive host, 1.5-hour wall
Modules	load_modules.sh run
J-Job	JGLOBAL_ATMOS_PRODUCTS
Template	_master (per forecast hour)
Key exports	WGF, FHR, FHR_LIST, FORECAST_HOUR, COMPONENT
Rocoto	atmos_products.sh

---

2. v17-specific notes

• Primary product generation: creates the 0p25/0p50/1p00 GRIB2 files that feed GEMPAK, AWIPS, NPOESS, and all downstream product chains.
• Per-hour template: one task per forecast hour, triggered after UPP master file availability.
• Exclusive host: full-node compute for wgrib2 regridding/subsetting.
• CRITICAL: upstream of all GEMPAK, AWIPS, and NPOESS product tasks.
• Shared J-Job: JGLOBAL_ATMOS_PRODUCTS used by both GFS and GDAS.

---

Sources

• On-disk v17: ecf/scripts/gfs/product/atmos/product/jgfs_atmos_product_master.ecf.