GRASP SST charts - Permanent Commission of the South Pacific
Original (non-English) name
Acronym
GRASP SST charts - CPPS
Citation
Abstract
The sea surface temperature (SST) data were provided by the United Kingdom Meteorological Service ( UKMO ), and correspond to the Sea Surface Temperature and Sea Ice Analysis System (OSTIA), which is part of the data set of the GHRSST project -PP ( GODAE High Resolution Sea Surface Temperature Pilot Project ).
The OSTIA system uses data from a combination of infrared and microwave satellites, as well as in-situ data to enable effective bias correction. The estimated RMS error is 0.6K at high resolution, in near-real time (Stark et al., 2007).
The Oceanographic and Antarctic Institute of the Ecuadorian Navy post-processes these daily (L4) data, at 4km resolution, and provides as a contribution to the GRASP Alliance Committee 7-day averaged SST and SST anomaly charts in the Southeast Pacific domain, For anomaly fields climatology was used with UKMO daily data 2007-2019.
The anomaly chart shows the difference between the current sea temperature and the expected value for the date based on historical records (Levitus climatology). Values above the average are known as a positive anomaly, and those below the average are known as a negative anomaly.