This visualization shows the locations of the ARGO buoy array over time. When the buoys above water, the lines are brighter; when the buoys are under water, the lines are fainter. The ARGO buoys measure ocean salinity, column temperature, and current velocities. This version of the visualization uses a faster camera move than version #1 (animation 3204).
GCMD keywords can be found on the Internet with the following citation:
Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 18.104.22.168.0