Users of geo-SST products,

This notice is to inform you and your group that certain legacy geo-SST products will be discontinued or severely impacted with the transition of GOES-13 to GOES-16 on or about November 20, 2017.

The legacy GOES-13 SST products, (gridded, in binary format) were not planned for continuation for GOES-16.

NESDIS STAR has two products that are planned for GOES-16 and we are planning to provide these products via the Product Distribution and Access (PDA) platform in OSPO and via an ftp server in STAR. These products will initially only be supported no an 8X5 basis so users need to be aware of that limitation.

The two products that will be offered initially are the Advanced Clear-Sky Processor for Oceans (ACSPO) level 2P full-disk GHRSST GDS 2.0 netcdf4 product. We will initially offer this at one per hour frequency as these data sets are very large (~260MB each for a total of 6.3GB/day). The second product will be an ACSPOgridded GHRSST GDS 2.0 L3U product (netcdf4) at 0.02 degree grid spacing (roughly 2km). This data set will be much smaller (roughly 0.5GB/day for 24 hourly files) and more network friendly. Users are urged to please provide us feedback as to your GOES-16 SST data needs, if you need data more frequently than one data set per hour, or if you have ideas or needs for other types of SST products from GOES-16 (such as the 3-hourly or the daily products). The L3U data should be available toward the end of September.

The NOAA STAR CoastWatch ftp server now has a 2-week rotating buffer (reported once per hour) of the GHRSST L2P GOES-16 SST (as well as the Himawari-8 SSTL2P) data for your exploration. ftp://ftp.star.nesdis.noaa.gov/pub/socd4/coastwatch/sst/nrt/

The /abi directory has the GOES-16 data and the /ahi directory has the Himawari-8 data

Future work (ACSPO v2.51/2.60) will be creating "collated" counterparts to L2P/L3U (L2C/L3C, respectively), which will be organized exactly the same way as the current L2P/L3U, but created using "temporal consistency analyses", and having better coverage (due to using intermediate 10/15min data to draw an upper-envelope to the diurnal cycle) and better performance (due to reduced residual cloud and suppressed noise)

We apologize for any inconvenience or disruptions that this discontinuation may cause but we are looking forward to a new era of high quality GOES-SST products in a more standard format which are monitored closely for quality and consistency. Monitoring/validation of these data will be done in the NOAA SQUAM and ARMS systems. Contact Sasha Ignatov Alex.Ignatov@noaa.gov with questions regarding validation.