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Facilitating Access to Global Observing Systems Data and Information

Global Temperature and Salinity Profile Program (GTSPP)
Data Access

Data Availability: Global Temperature and Salinity Profile Program (GTSPP) data are freely available on-line by request or by subscription at time scales from hours after the observation to historical time scales. The first versions of the data are mostly low vertical resolution representations of the profiles. These data are replaced with higher resolution versions of the data that have had more stringent quality checking applied in days or weeks after the observation. Thus the quality of the data in the databases improves with time after the observation. Data inventory are available on-line in the form of monthly maps of observation points.

The Canadian Marine Environmental Data Service (MEDS) operates the real time database that provides data in operational time frames. The US National Oceanographic Data Center (NODC) operates the "continuously managed" data base where replacement of the low resolution data with higher resolution and better quality controlled data is done.

GTSPP Data Flow Diagram

GTSPP Program Overview

Updated March 28, 2011

Access the Databases

  • The NODC has developed a Web-based application called "GWI" (GTSPP Web Interface) that provides access and retrieval of GTSPP data subsets.
  • The real-time data are managed by MEDS, Canada. The data are received daily and are processed through quality assessment and duplicates resolution software three times each week and transferred to the continuously updated database (CMD) at NODC.
  • The Best Copy data are produced by NODC on a monthly basis. The NODC holds, in the beginning, the real-time data from MEDS received three times per week. Delayed mode data include the full resolution data from XBTs or CTDs from the ships, or fully processed and quality controlled data from the organizations that provided the real time low resolution data to the GTS. If a low resolution real time copy of the data are already in the CMD the better quality or higher resolution copy replaces the real time one as the best copy.