Argo float data and metadata from Global Data Assembly Centre (Argo GDAC)

Oxygen Nutrients Particulate matter Dissolved Organic Carbon Sea State Sea Surface Salinity Sea Surface Temperature Ocean colour

Argo is a global array of 3,000 free-drifting profiling floats that measures the temperature and salinity of the upper 2000 m of the ocean. This allows, for the first time, continuous monitoring of the temperature, salinity, and velocity of the upper ocean, with all data being relayed and made publicly available within hours after collection.

The array provides 100,000 temperature/salinity profiles and velocity measurements per year distributed over the global oceans at an average of 3-degree spacing. Some floats provide additional bio-geo parameters such as oxygen or chlorophyll.

All data collected by Argo floats are publically available in near real-time via the Global Data Assembly Centers (GDACs) in Brest (France) and Monterey (California) after an automated quality control (QC), and in scientifically quality controlled form, delayed mode data, via the GDACs within six months of collection.

Data and resources

Coriolis Web Site

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Argo GDAC snapshots access

Argo GDAC snapshots access

HTML Open
Web app avec carte interactive Flotteurs Argo opérationnels

Ocean-OPS: Web app tous les flotteurs opérationnels

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Unnamed resource

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Argo Dashboard

HTML Open
FTP ARGO

FTP ARGO

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ERDDAP Download link

ERDDAP Download link

ERDDAP Open
GDAC

GDAC

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Additional information

Date (publication)	2000-09-12
Status	onGoing
Update frequency	asNeeded
Metadata language	en
License	A user of Argo data is expected to read and understand this manual and the documentation about the data contained in the "attributes" of the NetCDF data files, as these contain essential information about data quality and accuracy.
Source metadata	ISO 19115 XML
Last updated	2026-11-04
Created	2026-11-04
API	package_show