Tracking Large-Scale Changes in the Indian Ocean

Written by on February 10, 2014 in Technology

Robotic floats equipped with “revolutionary new sensors” will be launched in the Indian Ocean later this year in an effort to fill in some of the gaps in our knowledge of Indian Ocean ecosystems.

Deployment of an Argo Float.

Deployment of an Argo Float. Photo credit: CSIRO.

The Indian Ocean contains fisheries and mineral resources that are important to both India and Australia, which is why the two nations are working together to launch the new ‘Bio Argo’ floats.

These will improve upon Argo floats — a network of 3600 free-floating sensors — that are already being used to collect real-time data on ocean temperature and salinity. The ‘Bio Argo’ floats, which will float about two kilometers below the surface, will also contain sensors for dissolved oxygen, nitrate, chlorophyll, dissolved organic matter, and particle scattering. The data will be used to measure large-scale changes in the chemistry and biology of the Indian Ocean’s ecosystems.

“By studying the Indian Ocean in this detail, we can investigate the origin and impact of marine heatwaves like the one that devastated the coral reefs and fisheries off north Western Australian in 2011 – and improve our prediction of them in the future,” CSIRO’s Dr. Hardman-Mountford said in a news release.

The following infographic from CSIRO shows how data is collected by the ‘Bio Argo’ floats:

CSIRO Infographic

CSIRO Infographic

Copyright © 2014 by Marine Science Today, a publication of Marine Science Today LLC.

About the Author

About the Author: Emily Tripp is the Publisher and Editor of She holds marine science and biology degrees from the University of Miami's Rosenstiel School of Marine and Atmospheric Science and a Master of Advanced Studies degree in Marine Biodiversity and Conservation from Scripps Institution of Oceanography. When she's not writing about marine science, she's probably running around outside or playing with her dog. .


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