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Osmosis-Based Water Sampler

The Osmosis-Based Water Sampler provides long-term sampling of diffuse and/or pore fluids at the seabed by drawing those fluids into small-bore, capillary tubing. The instrument currently deployed at Southern Hydrate Ridge samples pore fluids associated with methane seeps, while the instrument at the ASHES vent field on Axial Seamount is collocated with the 3-D Temperature Array (TMPSF) and samples diffuse fluids associated with hydrothermal flow. After instrument recovery, laboratory analyses provide major/trace element chemistry of these fluid samples.

The laboratory processed analytical data and metadata from the fluid samples can be found in the OOI Core Instrument Analytical Results data repository. Numerical and other processed analytical results are generally provided in spreadsheet form. Associated metadata files including analytical protocols, sampling and recovery notes, and sample log files are presented in .pdf format. As-deployed images of instruments are provided in .jpg format, with image metadata summarized in spreadsheet-based catalogs.

Data Products

This instrument measures the following data products. Select a data product's name to learn more.

Data Product Code DPS
Physical Fluid Sample – Diffuse fluid chemistry PHSSAMP DPS

Instrument Models & Deployed Locations

The OOI includes the following instrument makes and models for this instrument type. Follow the links below to find out where in the OOI this instrument has been deployed. You'll also find quick links for each instrument to Data portal, where you can plot and access data.

Series Make Model
OSMOIA TLR, Inc. OsmoSampler
A new osmotic fluid sampler being installed in a diffuse flow site hosting a 3D temperature array in the ASHES Hydrothermal Field on the summit of Axial Seamount. Onshore analyses of the entrapped fluids provide insights on the evolution of fluid chemistry in time, in response to changing environmental conditions e.g. earthquakes, temperature, microbial utilization of gases and different elements. Credit: UW/NSF-OOI/WHOI; V16.

A new osmotic fluid sampler being installed in a diffuse flow site hosting a 3D temperature array in the ASHES Hydrothermal Field on the summit of Axial Seamount. Onshore analyses of the entrapped fluids provide insights on the evolution of fluid chemistry in time, in response to changing environmental conditions e.g. earthquakes, temperature, microbial utilization of gases and different elements. Credit: UW/NSF-OOI/WHOI; V16. Creative Commons License

Primary Science Discipline
Chemical

Research Themes

None

Access Data
OSMOI on the Data Portal
An Osmotic fluid sampler is installed in a small diffuse flow site hosting abundant tubeworms, limpets, and palm worms in the ASHES hydrothermal fluid. When recovered next year, the fluids this sampler host will provide information on how vent fluid chemistry changes over time. Credit: NSF-OOI/UW/ISS; Dive R1835; V15.

An Osmotic fluid sampler is installed in a small diffuse flow site hosting abundant tubeworms, limpets, and palm worms in the ASHES hydrothermal fluid. When recovered next year, the fluids this sampler host will provide information on how vent fluid chemistry changes over time. Credit: NSF-OOI/UW/ISS; Dive R1835; V15. Creative Commons License