Discovering hydrothermalism from afar: in situ methane instrumentation and change-point detection for decision-making

dc.contributor.author Michel, Anna P. M.
dc.contributor.author Wankel, Scott D.
dc.contributor.author Preston, Victoria Lynn
dc.contributor.author Flaspohler, Genevieve Elaine
dc.contributor.author Kapit, Jason
dc.contributor.author Pardis, William A.
dc.contributor.author Youngs, Sarah
dc.contributor.author Martocello, Donald E.
dc.contributor.author Girguis, Peter R.
dc.contributor.author Roy, Nicholas
dc.coverage.spatial Guaymas Basin, Gulf of California
dc.date.accessioned 2022-10-10T15:00:27Z
dc.date.available 2022-10-10T15:00:27Z
dc.date.issued 2022-10-06
dc.description.abstract Seafloor hydrothermalism plays a critical role in fundamental interactions between geochemical and biological processes in the deep ocean. A significant number of hydrothermal vents are hypothesized to exist, but many of these remain undiscovered due in part to the difficulty of detecting hydrothermalism using standard sensors on rosettes towed in the water column or robotic platforms performing surveys. Here, we use in situ methane sensors to complement standard sensing technology for hydrothermalism discovery and compare sensing equipment on a towed rosette and autonomous underwater vehicle (AUV) during a 17 km long transect in the Northern Guaymas Basin. This transect spatially intersected with a known hydrothermally active venting site. These data show that methane signaled possible hydrothermal activity 1.5-3 km laterally (100-150m vertically) from a known vent. Methane as a signal for hydrothermalism performed similarly to standard turbidity sensors (plume detection 2.2-3.3 km from reference source), and more sensitively and clearly than temperature, salinity, and oxygen instruments which readily respond to physical mixing in background seawater. We additionally introduce change-point detection algorithms---streaming cross-correlation and regime identification---as a means of real-time hydrothermalism discovery and discuss related data monitoring technologies that could be used in planning, executing, and monitoring explorative surveys for hydrothermalism. en_US
dc.description.sponsorship NSF OCE OTIC: #1842053 Woods Hole Oceanographic Institution: Innovative Technology Award NOAA Ocean Exploration: #NA18OAR0110354 Schmidt Marine Technology Partners: #G-21-62431 NASA: #NNX17AB31G NSF OCE: #0838107 Gordon and Betty Moore Foundation: #9208 NDSEG: Graduate Fellowship MIT Martin Family Society of Fellows: Graduate Fellowship Microsoft: Graduate Research Fellowship DOE/National Nuclear Security Administration: #DE-NA000392 MIT EAPS: Houghton Fund en_US
dc.identifier.citation Michel, A., Wankel, S., Preston, V., Flaspohler, G. E., Kapit, J., Pardis, W. A., Youngs, S., Martocello, D. E., Girguis, P., & Roy, Nicholas, R. N. (2022). Discovering hydrothermalism from afar: in situ methane instrumentation and change-point detection for decision-making [Data set]. Woods Hole Oceanographic Institution. https://doi.org/10.26025/1912/29403
dc.identifier.doi 10.26025/1912/29403
dc.identifier.uri https://hdl.handle.net/1912/29403
dc.publisher Woods Hole Oceanographic Institution en_US
dc.relation.ispartof https://doi.org/10.3389/feart.2022.984355
dc.relation.ispartof https://hdl.handle.net/1912/66079
dc.subject Methane en_US
dc.subject In situ instrumentation en_US
dc.subject Hydrothermalism en_US
dc.subject Deep sea exploration en_US
dc.subject Eater mass classification en_US
dc.subject Science-informed models en_US
dc.subject AUV SENTRY en_US
dc.subject Decision-making infrastructure en_US
dc.title Discovering hydrothermalism from afar: in situ methane instrumentation and change-point detection for decision-making en_US
dc.type Dataset en_US
dspace.entity.type Publication
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