4.2. ABI L2 NetCDF Reader

The ABI Level 2 Reader operates on NOAA Level 2 (L2) NetCDF files from the GOES-16,-17,-18 and -19 Advanced Baseline Imager (ABI) instrument. The ABI L2 NetCDF reader works off of the input filenames to determine if a file is supported by Geo2Grid. Files usually have the following naming scheme:

OR_ABI-L2-{PROD}{DOMAIN}-M3_G{SAT}_s20182531700311_e20182531711090_c20182531711149.nc

and:

CG_ABI-L2-{PROD}{DOMAIN}-M6_G{SAT}_s20223271830316_e20223271839394_c20223271842100.nc

These are the mission compliant file naming conventions used by the NOAA Comprehensive Large Array-data Stewardship System (CLASS) archive and the CSPP Geo AIT Framework Level 2 software. The ABI L2 NetCDF reader supports most L2 products, but Geo2Grid is tested with a limited subset of these. See the table below for more information. The ABI L2 NetCDF reader can be provided to the main geo2grid.sh script using the -r option and the reader name abi_l2_nc.

Product Name	Description
AOD	Aerosol Optical Depth
LST	Land Surface Temperature
HT	Cloud Top Height
PRES	Cloud Top Pressure
TEMP	Cloud Top Temperature
Phase	Cloud Top Phase
Fog_Depth	Fog Depth
IFR_Fog_Prob	Instrument Flight Rules Probability
LIFR_Fog_Prob	Low Instrument Flight Rules Probability
MVFR_Fog_Prob	Marginal Visible Flight Rules Probability

More information on the flight rules products can be found at:

https://www.experimentalaircraft.info/wx/colors-metar-taf.php

4.2.1. Command Line Usage

usage: geo2grid.sh -r abi_l2_nc -w <writer> [-h] [--filter-sst | --no-filter-sst]

4.2.1.1. ABI L2 Reader

--filter-sst, --no-filter-sst

Enable or disable quality flag filtering of the SST product (default on)

Default: ['good_quality_qf']

Examples:

geo2grid.sh -r abi_l2_nc -h

geo2grid.sh -r abi_l2_nc -w geotiff --list-products -f abi/full_disk/CG_ABI-L2-*-M6_G19*.nc

geo2grid.sh -r abi_l2_nc -w geotiff -p TEMP -f CG_ABI-L2-ACHTF-M6_G19_s20261181500205_e20261181509525_c20261181512030.nc

geo2grid.sh -r abi_l2_nc -w geotiff  -p MVFR_Fog_Prob LIFR_Fog_Prob IFR_Fog_Prob -f ABI-L2-GFLSM-M6_v3r1_g19_s202604281500278_e202604281500347_c202604281501310.nc

geo2grid.sh -r abi_l2_nc -w geotiff -f /data/conus/CG_ABI-L2-*C-M6_G19_s20261181501170_*.nc

geo2grid.sh -r abi_l2_nc -w geotiff -p AOD LST -f /abi/meso1/CG_ABI-L2-AODM1-M6_G18_s2024114182*.nc CG_ABI-L2-LSTM1-M6_G18_s2024114182*.nc

geo2grid.sh -r abi_l2_nc -w geotiff -p PRES Phase -f CG_ABI-L2-ACTPC-M6_G19_s20261181501*.nc CG_ABI-L2-CTPC-M6_G19_s20261181501*.nc