The distribution of dissolved silica in the deep western North Atlantic Ocean

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Date
1978-11
Authors
Needell, Gerald J.
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Date Created
Location
Western North Atlantic Ocean
DOI
10.1575/1912/1719
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Keywords
Silica
Chemical oceanography
Composition of seawater
Atlantis II (Ship : 1963-) Cruise AII100
Knorr (Ship : 1970-) Cruise KN48
Chain (Ship : 1958-) Cruise CH20
Abstract
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.
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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
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Citation
Needell, G. J. (1978). The distribution of dissolved silica in the deep western North Atlantic Ocean [Doctoral thesis, Massachusetts Institute of Technology and Woods Hole Oceanographic Institution]. Woods Hole Open Access Server. https://doi.org/10.1575/1912/1719
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