Towards global daily gridded super-collated SST product from low earth orbiting satellites (L3S-LEO-Daily) at NOAA

Currently, NOAA provides two gridded super collated sea surface temperature (SST) products from low Earth orbit (LEO) satellites (L3S-LEO) using ACSPO system, one from PM (afternoon) and the other from AM (mid-morning) platforms. PM/AM products are split into day/night files, sampling the diurnal cycle at four points (approximately at 1:30am/pm and 1:30am/pm). To meet users' needs for larger coverage, we are developing a combined SST product which collates all four SSTs into one daily product. We present the ACSPO L3S-daily collation algorithm, where L3S-LEO SSTs are debiased to night-time viewing conditions and combined using an iterative weighting algorithm.