The distribution of dissolved silica in the deep western North Atlantic Ocean
Needell, Gerald J.
MetadataShow full item record
LocationWestern North Atlantic Ocean
KeywordSilica; Chemical oceanography; Composition of seawater; Atlantis II (Ship : 1963-) Cruise AII100; Knorr (Ship : 1970-) Cruise KN48; Chain (Ship : 1958-) Cruise CH20
The distribution of dissolved silica in the deep western North Atlantic Ocean is presented. The potential temperature-dissolved silica relationship is compared with the potential temperature salinity relationship in the North Atlantic Deep Water. Geographical variations in the potential temperature- dissolved silica relationship are discussed with particular emphasis on the low silica signal of the Western Boundary Undercurrent (WBUC). The WBUC is shown to have a significant influence on the potential temperature-dissolved silica relationship from the tail of the Grand Banks of Newfoundland to Cape Hatteras. It is suggested that a region of enhanced mixing is present west of 65°W that is responsible for the observed changes in the dissolved silica distribution.
Submitted in partial fulfillment of the requirements for the degree of Master of Science at the Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution November, 1978
Suggested CitationThesis: Needell, Gerald J., "The distribution of dissolved silica in the deep western North Atlantic Ocean", 1978-11, DOI:10.1575/1912/1719, https://hdl.handle.net/1912/1719
Showing items related by title, author, creator and subject.
The ecology of colonial radiolarians : their colony morphology, trophic interactions and associations, behavior, distribution, and the photosynthesis of their symbionts Swanberg, Neil Ralph (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1979-08)Colonial radiolarians (Spumellaria) are among the most common and abundant large zooplankton, but they have been little studied by modern biologists. Colonies were found on 98% of epipelagic diving stations in the period ...
A determination of air-sea gas exchange and upper ocean biological production from five noble gases and tritiugenic helium-3 Stanley, Rachel H. R. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2007-09)The five noble gases (helium, neon, argon, krypton, and xenon) are biologically and chemically inert, making them ideal oceanographic tracers. Additionally, the noble gases have a wide range of solubilities and molecular ...
Elkins, Lynne J. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2009-02)To explore the ability of melting mafic lithologies to produce alkaline ocean-island basalts (OIB), an experimental study was carried out measuring clinopyroxene (Cpx)- melt and garnet (Gt)-melt partition coefficients ...