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Sentry Science Use Cases

Census of Marine Life

Graduate Student Andrew Thurber and Prof. Lisa Levin (both at Scripps Institution of Oceanography) each led expeditions using NDSF vehicles in 2010, one using the AUV ABE (predecessor to Sentry) and the other using the HOV Alvin to investigate benthic communities along the active ocean margins of Chile and Costa Rica. As well as the discovery of new chemosynthetic habitats (including novel “hybrid” systems and more conventional hydrothermal vents and cold seeps), both expeditions resulted in the discovery of “new” species previously unknown to science.

Ocean Observatory Initiative

Profs. John Delaney and Deborah Kelley (both University of Washington), Dr. Robert Collier (Oregon State University) and colleagues have used the AUV Sentry and ROV Jason to conduct essential seafloor surveys, making high-resolution multibeam bathymetric maps and obtaining extensive photographic coverage of the seafloor offshore from the Pacific Northwest to plan for cable installation and placement of nodes and junction boxes in support of the Regional Cabled Network and Coastal components of OOI.

NOAA Ocean Exploration

NOAA’s Ocean Exploration program has made extensive use of the ROV Jason to locate numerous sites of hydrothermal activity and even active volcanic eruption along the Marianas Arc (Drs. R. Embley & W. Chadwick, NOAA-PMEL). Dr. Tim Shank (WHOI) has used the HOV Alvin and AUV ABE (predecessor to Sentry) to locate new vents on the Galapagos Rift and in the Southern Atlantic Ocean. Most recently, NOAA’s OER program has supported an ongoing project led by Profs. Chuck Fisher (Pennsylvania State University) and Erik Cordes (Temple University) using the Jason ROV to investigate deep water coral and cold seep sites in the northern Gulf of Mexico, both close to and distant from the site of the Deep Water Horizon.