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Bathymetric map of the summit of Axial volcano, showing the caldera, the 1998 lava flow, and the locations of the components of the NeMO Net 2002 system. The NeMO Net surface buoy is anchored at the black dot and its mooring keeps it within the black watch-circle. The Bottom Pressure Recorder (BPR) and two Remote Access Samplers (RAS) are located on the seafloor at the blue dots. The blue circles show the maximum range of the directional (for the RAS) and omni-directional (for the BPR) acoustic modems. The new omni-directional modem clearly has much greater range and therefore gives the monitoring system much greater flexibility.

View close-up map of ASHES vent field:
map of ASHES vent field, click for full size

 

     
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