Met Office logo
OSTIA: Operational Sea Surface Temperature and Sea Ice Analysis Image showing sea surface temperature
Contact us
 
 
 
GHRSST (external link)
 
Copernicus Marine Service (external link)
 
 
 
Validation of GMPE analyses using Argo

This page was created as part of the E-AIMS (external link) project (Euro-Argo Improvements for the GMES Marine Service) and is updated once a month.

Overview

Near-surface temperature observations from Argo profiling floats have been used to validate various global SST analyses and their daily ensemble median, known as the GMPE (GHRSST Multi-Product Ensemble) median product. Argo observations between 3-5 m depth have been used, and the analyses have been regridded to the Argo locations to create the matchups. Plots for OSTIA and the GMPE median are shown for various ocean regions for a rolling 18-month window. These pages are updated on the first of the month for the previous-but-one month using Argo data from the Met Office Hadley Centre EN4 database.

The GMPE ensemble median product is freely available through CMEMS (external link).

Global comparisons to Argo for GMPE analyses

Note: Days when analyses are missing from GMPE are included in the stats, leading to spikes for some analyses when only a small number of files are available for the month.

Latest Argo Comparisons (mean diff)
Latest Argo Comparisons (std)
Global number Argo matchups

OSTIA comparisons to Argo

All plots are Argo - Analysis
Error bars are 95% confidence intervals

Latest global OSTIA Argo comparison Latest Arctic OSTIA Argo comparison
Latest North Atlantic OSTIA Argo comparison Latest South Atlantic OSTIA Argo comparison
Latest North Pacific OSTIA Argo comparison Latest South Pacific OSTIA Argo comparison
Latest Tropical Atlantic OSTIA Argo comparison Latest Tropical Pacific OSTIA Argo comparison
Latest Indian Ocean OSTIA Argo comparison Latest Southern Ocean OSTIA Argo comparison

GMPE median comparisons to Argo

All plots are Argo - Analysis
Error bars are 95% confidence intervals

Latest global GMPE_median Argo comparison Latest Arctic GMPE_median Argo comparison
Latest North Atlantic GMPE_median Argo comparison Latest South Atlantic GMPE_median Argo comparison
Latest North Pacific GMPE_median Argo comparison Latest South Pacific GMPE_median Argo comparison
Latest Tropical Atlantic GMPE_median Argo comparison Latest Tropical Pacific GMPE_median Argo comparison
Latest Indian Ocean GMPE_median Argo comparison Latest Southern Ocean GMPE_median Argo comparison
 
  Web site designed and maintained by the Met Office. © Crown copyright 2007-, Met Office.
back to top