Securing the USBL
![Securing the USBL](http://io.ocean.washington.edu/files/20110816_103046_med.jpg)
Vincent Auger of the ROPOS crew secures the USBL (ultra-short baseline) pole. USBL is one of the compenents of the ROPOS navigation system that is used to determine precisely where on the seafloor the vehicle is. (photo by Mitch Elend)
![Creative Commons License](http://i.creativecommons.org/l/by-nc-nd/3.0/us/88x31.png)
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