Correction #2: The date/time in the subject of the notification has been updated to be the current date/time.

Topic: GOES-16 and GOES-18 software build (PR.11.05.00) implementation

Date/Time Issued: March 23, 2023 1717 UTC

Product(s) or Data Impacted: GOES-16 ABI L2+ Cloud Height, Cloud Optical Microphysical Properties, Ice Age and Thickness, and Fractional Snow Cover products

Date/Time of Initial Impact:

GOES-16 - March 23, 2023 1800 UTC

GOES-18 - March 27, 2023 1800 UTC

Date/Time of Expected End: N/A

Length of Outage: N/A

Details/Specifics of Change:

On March 23, 2023 at 1800 UTC, the PR.11.05.00 software update will be put into operation on the GOES-R Ground System for GOES-16. Barring the declaration of a Critical Weather Day, on March 27, 2023 the PR.11.05.00 update will go live for GOES-18. This build will replace the following ABI L2 Baseline algorithms with the Enterprise version.

Cloud Top Height (includes Height, Pressure, and Temperature)
Cloud Optical and Microphysical Properties (COMP)
Ice Age and Thickness

Product content changes

The primary product variables will not be changed, although the underlying science updates will result in improved data quality in some cases. However, the Enterprise versions of Cloud Height and Ice Age and Thickness will introduce some minor changes to the Data Quality Flags (DQFs) associated with these products. A full summary of the changes to each product’s DQFs is provided in the tables below:

Enterprise Cloud Height, Pressure, Temperature
New DQF	Old DQF
good_quality_qf	good_quality_qf
marginal_quality_qf	invalid_due_to_not_geolocated_qf
retrieval_attempted_qf	invalid_due_to_LZA_threshold_exceeded_qf
opaque_retrieval_qf	invalid_due_to_bad_or_missing_brightness_temp_data_qf
	invalid_due_to_clear_or_probably_clear_sky_qf
	invalid_due_to_unknown_cloud_type_qf
	invalid_due_to_nonconvergent_retrieval_qf

Enterprise Ice Age and Thickness
New DQF	Old DQF
normal	normal
nonretrievable	uncertain
uncertain	nonretrievable
bad_data	bad_data

New high-resolution products

The update to the Enterprise algorithms will include the addition of new 2 km versions of Cloud Height and Cloud Pressure for all image sectors (Full Disk, CONUS, Meso), as well as a new 2 km version of the Full Disk Cloud Optical Depth (COD) product. The current lower-resolution versions will continue to be produced alongside these new higher-resolution products. The new 2 km data files will contain “2KM” in the filename and will be available through PDA via new subscriptions based on the short names below:

ABI-L2-ACHA2KMF (Cloud Top Height Full Disk)
ABI-L2-ACHA2KMC (Cloud Top Height CONUS)
ABI-L2-ACHA2KMM (Cloud Top Height Meso)
ABI-L2-ACHP2KMF (Cloud Top Pressure Full Disk)
ABI-L2-ACHP2KMC (Cloud Top Pressure CONUS)
ABI-L2-ACHP2KMM (Cloud Top Pressure Meso)
ABI-L2-COD2KMF (Cloud Optical Depth Full Disk)

Non-Enterprise changes

PR.11.05.00 will also bring with it a change to the cadence of the Fractional Snow Cover product from the current 10-minute production frequency to a once-an-hour product.

Contact Information for Further Information: Please email Steve Superczynski at stephen.superczynski@noaa.gov; or ESPC Operations at ESPCOperations@noaa.gov or 301-817-3880 24x7

Web Site(s) for applicable information:

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