Topic: GFS Model Upgrade Impacts on ESPC Products

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Date/Time Issued: June 12, 2019 1410 UTC

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Product(s) or Data Impacted: M-BAll ESPC satellite data products using GFS Version 15.1 data

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Date/Time of Initial Impact: M-BJune 12, 2019 1530 UTC

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Date/Time of Expected End: N/A

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Topic: GFS Model Upgrade Impacts on ESPC Products

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Date/Time Issued: June 12, 2019 XXXX UTC

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Product(s) or Data Impacted: M-BAll ESPC satellite data products using GFS Version 15.1 data

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Date/Time of Initial Impact: M-BJune 12, 2019 1530 UTC

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Date/Time of Expected End: N/A

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Length of Outage: M-BM-BN/A

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Details/Specifics of Change:

Effective on or about Wednesday, June 12, 2019, beginning with the 1200 Coordinated Universal Time (UTC) run, the National Centers for Environmental Prediction (NCEP) will upgrade the Global Forecast System (GFS) from version 14 to 15.1.M-B A persistent cold bias remains in Version 15.1 of the GFS data which may impact satellite data products that use GFS as input.

Science teams have confirmed that the impacts to the NUCAPS products (both CrIS and IASI) are statistically insignificant.M-B In-depth analysis of other products such as VIIRS Cloud Mask is underway. Users are encouraged to exercise due diligence when using any satellite data products that use GFS data.M-B Users will be notified if the analysis yields any concern with regard to the product quality.

The following products may be impacted:

Algorithm | Products | Comments
ACSPO SST/Geo-SST | ACSPO Sea Surface Temperature; L2, L3 products in NetCDF, GHRSST, BUFR formats | Applies to geo-SST all satellites domestic and foreign. Applies to AVHRR SST from Metop. Blended SST also uses GFS for diurnal correction.
Ocean Color | Ocean Color |
NUCAPS (CrIS and IASI) | NUCAPS soundings | Impacts to the NUCAPS products (both CrIS and IASI) are statistically insignificant
GCOM | GCOM Ocean, Precipitation products |
MiRS (SFR uses GFS) | Snow Fall Rate products for SNPP and Legacy |
Tropical Cyclone Intensity (TCI) | Tropical Cyclone Intensity | SNPP
Clouds (VIIRS and CLAVR-x) | VIIRS and AVHRR cloud mask, cloud top and base heights, cloud phase, cloud DCOMP/NCOMP |
VIIRS Aerosol | VIIRS Aerosols, AOD and ADP |
VIIRS Volcanic Ash | VIIRS Volcanic Ash |
VIIRS Ice and Snow | VIIRS snow cover, ice surface temperature, ice age, ice concentration | Not use GFS directly, but down stream products of cloud mask
VIIRS LST/LSA | VIIRS land surface temperature and land surface albedo for SNPP |
VIIRS Polar Winds | VIIRS Polar winds |
VIIRS Surface Reflectance | VIIRS surface reflectance |
VIIRS Vegetation Index | VIIRS Vegetation Index | down stream products of cloud mask
VIIRS Vegetation Health | VIIRS Vegetation Health Products | down stream products of cloud mask
VIIRS Green Vegetation Fraction | VIIRS Green Vegetation Fraction | down stream products of surface reflectance
TCFP | Tropical Cyclone Formation Probability | GOES
AMSUTC | Microwave Sounder-based Tropical Cyclone |
ABBA | Wildfire Automated Biomass Burning Algorithm | GFS in mcidas
ATOVS Proc, AMSUB | Soundings |
MSPPS | AMSUB Precipitation Products |
ASCAT | Scatterometer surface winds |
GSIP | GOES Surface Insulation Products |
Model AIRS | GFS in McIDAS formats |
SFOV | Single Field of View Soundings |
SAR Coastal Winds | SAR Coastal Winds |
GHE/model airs | Global Hydro Estimator Precipitation Products | using model airs as input
SMOPS | Soil Moisture products |

Contact Information: M-BFor information on this notice, please contact ESPC Operations at ESPCOperations@noaa.gov or 301-817-3880

Web Site(s) for applicable information:

Service Change Notice 19-40 for the Upgrade NCEP Global Forecast Systems (GFS) to V15.1: M-B https://www.weather.gov/media/notification/scn19-40gfs_v15_1.pdf

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This message was sent to ESPC.Notification@noaa.gov.M-B You have been sent this and other notifications because you have opted in to receive it.M-B If you wish to unsubscribe please contact the ESPC Help Desk at ESPCOperations@noaa.gov or (301) 817-3880.M-B Please note: it may take up to two business days to process your unsubscribe request.

--
Josh Jankot
User Services Coordinator - Physical Scientist
NOAA/NESDIS/OSPO/ Satellite Products and Services Division
NOAA Center for Weather & Climate Prediction, E/SP05
5830 University Research Court, Rm 3640, College Park, MD 20740
Tel: 301-683-3242, Fax: 301-683-3297

    http://www.ospo.noaa.gov   http://twitter.com/NOAASatellites