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NeMO
Date:
July 7, 2000
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Report: ROPOS finished dive 546 and the Imagenex sonar survey at the southern end of the 1998 eruption in the morning. Between dives we deployed a mooring that will allow us to recover the 1999 NeMO Net camera that we put near Nascent vent last summer. In a few days ROPOS will connect the mooring to the camera so that when we release the mooring it will bring the camera back to the surface. After that we will deploy an upgraded NeMO Net system. NeMO Net is a prototype communication system that we are developing for sending data from the seafloor back to shore (more on NeMO Net in a few days). By evening, ROPOS returned to the 1998 lava flow site for dive 547, making its first dive with the vent fluid sampler that was transferred from the Atlantis a few days ago. ROPOS will be sampling at several hydrothermal vent sites on the new flow to see how their chemistry and microbial populations have changed since last year. Has the hydrothermal system cooled down since last year? We will see.
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