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Global Argo Data Repository

 

The Argo Ocean Profiling Network is a global ocean observing system developed to address the lack of data coverage in parts of the world ocean, and the need for regular capture intervals to enable both short and long-term climate predictions. 

NCEI operates and manages the Global Argo Data Repository (GADR), which provides long term archive services to store, and preserve data. Additionally, NCEI implements reanalysis updates and corrections provided by the U.S. Global Ocean Data Assimilation Experiment (GODAE) and French Institute for Research and Exploration of the Sea (IFREMER) Global Data Assembly Centers (GDACs), which provide access to real-time and near real-time data and perform initial quality control measures. 

Data Repositories and Assembly Centers

Quality controlled Argo data from both the Global Argo Data Repository (GADR) and Global Data Assembly Centers (GDACs), available in Mono-Profile and Multi-Profile NetCDF formats.

Global Argo Data Repository (GADR)

HTTPFTPTHREDDS

Global Data Assembly Centers (GDAC)

HTTPFTPTHREDDS

 

Basins Data

Individual profiles organized by ocean and subdivided into years and months. Each month has an inventory table that includes path and the file names, monthly station observations, sampling date (year, month, and day), and location (latitude and longitude, negative numbers are for southern latitudes and western longitudes).

Atlantic

DataIndex

Indian

Data Index

Pacific 

DataIndex

 

Floats Data

Profiles, metadata, and technical information files grouped by the Argo float identification numbers. Consult the Grey Floats table for a list of floats with documented or potential technical issues.

Floats ListGrey Floats

Multi-Profile Floats

[prefix]_[float_ID_number]_[data_type].[ext]

Legend
prefix
always nodc, to indicate NODC format
float_ID_number
a seven-digit number beginning with A9xxxx. A is the World Meteorological Organization deployment region, 9 is a float indicator, and xxxx is a number allocated serially.
data_type
three or four-character string indicating the file's data type.

dat
Vertical distribution of measured parameters such as temperature, salinity, and conductivity of profiling floats
inv
Inventory tables for each float on the disk
sta
Status of each float as of CD production
prof
Vertical distribution of measured parameters in the so called "one-file per float" or "multi-profile" formats
ext
filename extension, indicating the kind of data stored in the file. e.g., nc = netCDF

Mono-Profile Floats

[prefix]_[data_mode][float_ID_number]_[cycle_number].[ext]

Legend
prefix
always nodc
data_mode
data mode of the float, R for real-time and D for delayed-mode
float_ID_number
a seven-digit number, A9xxxxx as described above
cycle_number
a three-digit number indicating the cycle number of the float
ext
always nc to indicate netCDF format