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The National Institute of Meteorological Sciences ARGO (NIMS-ARGO) program is an international cooperation program for global ocean observation performed by the World Meteorological Organization/Intergovernmental Oceanographic Commission of UNESCO (WMO/IOC). The objectives of this project is to do near-real time monitoring the upper ocean from monthly to decadal scale variation, and to describe the ocean climate change quantitatively.
The Argo floats carry out profiling of the water temperature, salinity, Chlorophyll, and Nitrogen for the physical and biogeochemical study of ocean. This program started from early 2000 and 16 countries and several institutes and university in the world are participating in deploying more 800 floats every year.
As an international global ocean observation program, it is also connected with Global Climate Observing System/Global Ocean Observing System (GCOS/GOOS), Climate Variability and Predictability program (CLIVAR), and Global Ocean Data Assimilation Experiment (GODAE).
ARGO float is designed to go down to specified depth and drift for determined time along geostrophic current.
Then it observes the temperature and salinity of the layers as it rises up to the surface layer by internal dynamics, and transmits the recorded data to ARGOS satellite.
The observed data will be sent to ARGOS center and processed by quality control. Then the final data will be distributed to the ARGO participating country via GTS, FTP and e-mail.