A self-powered pumping system for in situ extraction of particulate and dissolved materials from large volumes of seawater
Winget, Clifford L.
Burke, John C.
Schneider, David L.
Mann, Don R.
MetadataShow full item record
A pumping system has been developed for the in situ extraction of particles and of dissolved constituents from large volumes of seawater. The assembly consists of a battery-powered submersible pump, filters, and chemisorptive cartridges; it is entirely self-contained and has been used successfully on ship's hydrographic wire to depths as great as 5800 m. The pump is designed to operate at a maximum pressure drop of 66 cm of Hg; flow rates have varied from 1.3 to 5.1 liters/min. We have sampled volumes as large as 758 liters, and the measured battery drain suggests that volumes several times this could be pumped at any depth. The system is being used to study a variety of artificial radionuclides, but modifications of the filter or chemisorbent units would make it useful in many other geochemical applications.
Suggested CitationTechnical Report: Winget, Clifford L., Burke, John C., Schneider, David L., Mann, Don R., "A self-powered pumping system for in situ extraction of particulate and dissolved materials from large volumes of seawater", 1982-02, DOI:10.1575/1912/1941, https://hdl.handle.net/1912/1941
Showing items related by title, author, creator and subject.
Retreat of the Laurentide ice sheet tracked by the isotopic composition of Pb in western North Atlantic seawater during termination 1 Gutjahr, Marcus; Frank, Martin; Halliday, Alex N.; Keigwin, Lloyd D. (2009-07-16)During the Last Glacial Maximum much of North America was covered by the Laurentide ice sheet. Its melting during termination 1 led to systematic changes in proglacial lake formation, continental runoff, and possibly ...
Constraints on the vital effect in coccolithophore and dinoflagellate calcite by oxygen isotopic modification of seawater Hermoso, Michael; Horner, Tristan J.; Minoletti, Fabrice; Rickaby, Rosalind E. M. (2014-05)In this study, we show that there are independent controls of 18O/16O and 13C/12C fractionation in coccolithophore and dinoflagellate calcite due to the contrasting kinetics of each isotope system. We demonstrate that ...
Sutton, Adrienne J.; Wanninkhof, Rik; Sabine, Christopher L.; Feely, Richard A.; Cronin, Meghan F.; Weller, Robert A. (John Wiley & Sons, 2017-06-12)Variability and change in the ocean sink of anthropogenic carbon dioxide (CO2) have implications for future climate and ocean acidification. Measurements of surface seawater CO2 partial pressure (pCO2) and wind speed from ...