NOAA ACSPO v2.70 Himawari-8 AHI L3C SST

Description The ACSPO H08/AHI L3C product is a gridded version of the L2P product available at https://podaac.jpl.nasa.gov/dataset/AHI_H08-STAR-L2P-v2.70 . The L3C output files are 1hr granules in NetCDF4 format, compliant with the GHRSST Data Specification v2 (GDS2). There are 24 granules available per 24hr interval, with a total data volume of 0.2GB/day. Valid SSTs are found over clear-sky oceans, sea, lakes or rivers, with fill values reported elsewhere. All valid SSTs in L3C are recommended for users, although data over internal waters may not have enough in situ data to be adequately validated. Per GDS2 specifications, two additional Sensor-Specific Error Statistics layers (bias and standard deviation) are reported in each pixel with valid SST (Petrenko et al., 2016). The ACSPO AHI L3U product is monitored and validated against iQuam in situ data https://www.star.nesdis.noaa.gov/socd/sst/iquam in SQUAM https://www.star.nesdis.noaa.gov/socd/sst/squam . Quality of SST imagery and clear-sky mask are evaluated in the NOAA ARMS system https://www.star.nesdis.noaa.gov/socd/sst/arms .