jgfs_ice_product_master ecf (v17) Analysis

jgfs_ice_product_master.ecf (GFS v17)

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

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Summary

jgfs_ice_product_master.ecf is the NCO production ecFlow task template that generates CICE6 sea-ice GRIB2 products from forecast output per forecast hour. It is a _master template deployed per hour. It calls the shared JGLOBAL_OCEANICE_PRODUCTS J-Job with COMPONENT=ice.

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1. Resources & Configuration

Field	Value
PBS resources	1 node, 1 cpu, 96 GB, 45-min wall, shared
Modules	load_modules.sh run
J-Job	JGLOBAL_OCEANICE_PRODUCTS (shared ocean/ice)
Template	_master (per forecast hour)
Key exports	COMPONENT=ice, WGF, FHR, FORECAST_HOUR
Rocoto	oceanice_products.sh

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2. v17-specific notes

• Shared J-Job: JGLOBAL_OCEANICE_PRODUCTS handles both ocean and ice — differentiated by COMPONENT.
• Per-hour template: deployed as jgfs_ice_product_f000, jgfs_ice_product_f003, etc.
• 96 GB memory: high for ice regridding/interpolation.
• Single cpu: serial processing per forecast hour.
• 45-min walltime: allows for large ice field processing.

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Sources

• On-disk v17: ecf/scripts/gfs/product/ice/jgfs_ice_product_master.ecf.