A Benthic chamber with electric stirrer mixing
MetadataShow full item record
Benthic chambers incorporating electric stirrer mixing have been designed and tested and have proven reliable during seven 18-31 day, 4300m ocean deployments. The chambers are 21 cm diameter by 31 cm long acrylic tubes sealed with pvc lids. A stepper motor and pressure tolerant electronics contained within the lids are magnetically coupled to stirring paddles to provide mixing within the chambers. The stirrers exhibit stable mixing rates and uniform speeds between chambers, require less than 1/3 watt of power, and are maintenance free. Laboratory calibration of stirring and mixing characteristics demonstrate that areal averaged equivalent seawater-sediment boundary layer thickness can be set to agree with in situ measured values.
Suggested CitationTechnical Report: Dickinson, Wayne, Sayles, Frederick L., "A Benthic chamber with electric stirrer mixing", 1992-02, DOI:10.1575/1912/796, https://hdl.handle.net/1912/796
Showing items related by title, author, creator and subject.
Deployment of the northern fish cage and mooring, University of New Hampshire — Open Ocean Aquaculture Program summer 2000 Irish, James D.; Paul, Walter; Ostrom, William M.; Chambers, Michael; Fredriksson, David W.; Stommel, Matt (Woods Hole Oceanographic Institution, 2000-09)The University of New Hampshire - Open Ocean Aquaculture (UNH-OOA) program has worked for the past few years on developing the technology to deploy and maintain fish cages in open, exposed northern waters. In June 1999, ...
White, Daniel; Hinzman, Larry; Alessa, Lilian; Cassano, John; Chambers, Molly; Falkner, Kelly; Francis, Jennifer; Gutowski, William J.; Holland, Marika M.; Holmes, Robert M.; Huntington, Henry; Kane, Douglas; Kliskey, Andrew; Lee, Craig M.; McClelland, James W.; Peterson, Bruce J.; Rupp, T. Scott; Straneo, Fiamma; Steele, Michael; Woodgate, Rebecca; Yang, Daqing; Yoshikawa, Kenji; Zhang, Tingjun (American Geophysical Union, 2007-11-20)Dramatic changes have been observed in the Arctic over the last century. Many of these involve the storage and cycling of fresh water. On land, precipitation and river discharge, lake abundance and size, glacier area and ...
Gledhill, Dwight K.; White, Meredith M.; Salisbury, Joseph E.; Thomas, Helmuth; Mlsna, Ivy; Liebman, Matthew; Mook, Bill; Grear, Jason S.; Candelmo, Allison C.; Chambers, R. Christopher; Gobler, Christopher J.; Hunt, Christopher W.; King, Andrew L.; Price, Nichole N.; Signorini, Sergio R.; Stancioff, Esperanza; Stymiest, Cassie; Wahle, Richard A.; Waller, Jesica D.; Rebuck, Nathan D.; Wang, Zhaohui Aleck; Capson, Todd L.; Morrison, J. Ruairidh; Cooley, Sarah R.; Doney, Scott C. (The Oceanography Society, 2015-06)New England coastal and adjacent Nova Scotia shelf waters have a reduced buffering capacity because of significant freshwater input, making the region’s waters potentially more vulnerable to coastal acidification. Nutrient ...