The Azimuth Project
Argo (Rev #5, changes)

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Defined by Wikipedia as:

Argo is an observation system for the Earth’s oceans that provides real-time data for use in climate, weather, oceanographic and fisheries research. Argo consists of a large collection of small, drifting oceanic robotic probes deployed worldwide. The probes float as deep as 2 km.

Below is a picture showing the location of the probes in Argo:

general one box model

Once every 10 days, the probes surface, measuring conductivity and temperature profiles to the surface. From these, salinity and density can be calculated. The data are transmitted to scientists on shore via satellite. The data collected are freely available to everyone, without restrictions. The initial project goal was to deploy 3,000 probes, completed in November 2007.


I made some plots with the Argo Global Marine Atlas which I collected here.

Temperature Salinity anomalies

This means deviations from the normal temperature for the time interval considered.

salinity anomalies 2008

These data were collected and made freely available by the International Argo Program and the national programs that contribute to it. (, The Argo Program is part of the Global Ocean Observing System.


category: oceans