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Data Access within the GHRSST-PP

Data products within the GHRSST-PP are formatted as netCDF files according to the CF convention. Example data read software is provided to read GHRSST-PP data files which can be downloaded from the Data Tools page. Two types of satellite SST products are generated: L4 SST analysis products and L2P SST integrated observation products. L2P data are ideal as input to data assimilation systems and SST analysis systems as they preserve the original SST values but provide additional uncertainty estimates and a suite of ancillary data to aid interpretation of the SST observations themselves. Data are generated at both Regional Data Assembly Centres (RDAC) sites and at a single Global Data Analysis Centre ( GDAC) located at the NASA PO.DAAC. In the coming months, all GHRSST-PP data will be served by the JPL GDAC with a mirror GDAC located in Europe as part of the European Commission MERSEA project.

This page describes where to find and access GHRSST-PP data data products.

Finding the data you want - the GHRSST-PP MMR

The GHRSST-PP has developed a Master Metadata Repository (MMR) system that catalogues all data files that have been ingested by the GHRSST-PP GDAC system. The MMR is a data discovery tool implemented as a searchable web based interface designed to allow users simple and easy lookups to the GHRSST-PP data sets. The GHRSST-PP prototype MMR system is now live and all data records can bve searched on-line using a simple user interface.

GHRSST-PP data servers

The GHRSST-PP RDAC teams have implemented ftp access to most data sets. The following servers are available although some require registration.

GHRSST-PP L2P integrated SST observation products

  1. JAXA :  Japanese GHRSST-PP server provided by the Earth Observation Resource Centre (EORC). For password access please contact
  2. ESA :    European GHRSST-PP RDAC area ftp server provided by IFREMER ftp
  3. NASA : GHRSST-PP Global data server provided by JPL.  ftp site is here and Occeanids monitoring site is here.  For password access please contact
  4. MISST: GHRSST-PP Global data server provided by Remote Sensng Systems anonymous ftp access is at Documentation can be found at

GHRSST-PP L4 SST analysis products

  1. Global, 5km: Operational SST and Sea Ice Analysis (OSTIA) provided by The Met Office NCOF
  2. Global, 25km: Microwave only OI SST analysis maps MWOISST provided by RSS
  3. Global, 10km: FNMOC High Resolution SST/Sea Ice Analysis for GHRSST provided by US-GODAE
  4. Global, 25km: MGDSST Operational based on AVHRR and JAXA-AMSR-E observations provided by JMA. Documentation is [here]
  5. Regional and Global: SST analysis provided by the Australian Beaureu of Meteorology ( BoM )
  6. Regional, 2km: New Generation SST (NGSST) data sets covering the Japanese area provided by University of Tohoku/JAXA
  7. Regional, 2km:   2km Mediterranean analysis based on all available GHRSST-PP L2P satellite observations provided by Medspiration
  8. Regional: various analyses developed for NEAR-GOOS

High Resolution Diagnostic Data Sets (HR-DDS)

  1. National Oceanography Centre, Southampton ( NOCS) HR-DDS server providing live analysis tools plus data access via OPeNDAP and http

Sea Ice Data

  1. EUMETSAT OSI SAF High Latitude Center daily pre-operational north & south hemisphere gridded sea ice data product

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Craig Donlon | Last updated on 1st November 2005