D 1141 - 52 Standard Specifications for Substitute Ocean Water

2009 ◽  
pp. 398-398-2
Author(s):  
Keyword(s):  
Ocean Water

scholarly journals Oceanographic parameters in continental margin of the State of Ceará (northeastern Brazil) deduced from C and O isotopes in foraminifers

2007 ◽  
Vol 79 (1) ◽  
pp. 129-139 ◽  
Author(s):  
Wanessa S. Marques ◽  
Eldemar de A. Menor ◽  
Alcides N. Sial ◽  
Valdir A.V. Manso ◽  
Satander S. Freire
Keyword(s):  
Continental Margin ◽  
Benthic Foraminifera ◽  
Linear Equations ◽  
The State ◽  
Northeastern Brazil ◽  
Oceanic Water ◽  
Ocean Water ◽  
Oxygen Utilization ◽  
Carbon And Oxygen Isotopes ◽  
Planktic Foraminifera

Specimens of Recent foraminifera of Amphistegina radiata, Peneroplis planatus and Globigerinoides ruber, from fifty samples of surface sediments of the continental margin of the State of Ceará, Brazil, have been analyzed for carbon and oxygen isotopes to investigate oceanographic parameters and determine the values of delta18O of the oceanic water. From a comparison between values of delta18O obtained for ocean water using the linear equations by (Craig and Gordon 1965) and the one by Wolff et al. (1998), it became evident that the former yielded a more reliable value (0.2‰ SMOW) than the latter. Lower values of delta18O for the ocean water in this continental margin resulted from continental water influence. Values of 18O (-0.3‰ to -1.5‰ PDB for benthic foraminifera and -0.6‰ to -2.4‰ PDB for planktic foraminifera), attest to a variation of temperatures of oceanic water masses, in average, between 20 to 22ºC in deep water and 24 to 27ºC, in surface water. Values of delta13C from +3.2‰ to -0.2‰ PDB (benthic foraminifera) reflect a variation in the apparent oxygen utilization (AOU) in the continental margin and indicate that the environments of bacteriological decomposition of organic matter are not continuous along the investigated area.

scholarly journals Intra-Annual Variability of the Radiocarbon Content of Corals from the Galapagos Islands

Radiocarbon ◽  
1993 ◽  
Vol 35 (2) ◽  
pp. 245-251 ◽  
Author(s):  
T. A. Brown ◽  
G. W. Farwell ◽  
P. M. Grootes ◽  
F. H. Schmidt ◽  
Minze Stuiver
Keyword(s):  
Southern Oscillation ◽  
Galapagos Islands ◽  
Ocean Current ◽  
Galápagos Islands ◽  
Ocean Water ◽  
Annual Variations ◽  
Surface Ocean ◽  
Annual Variability ◽  
Annual Changes ◽  
Detailed Record

We report AMS 14C measurements on subannual samples of coral from the Galapagos Islands that span the period, 1970–1973. Both the major 1972 El Niño/Southern Oscillation event and intra-annual changes in regional upwelling of 14C-depleted waters associated with alternation of surface-ocean current patterns are evident in the record. Our data show that the corals preserve a detailed record of past intra-annual variations of the 14C content of surface ocean water.

scholarly journals Differential co-occurrence relationships shaping ecotype diversification within Thaumarchaeota populations in the coastal ocean water column

2019 ◽  
Vol 13 (5) ◽  
pp. 1144-1158 ◽  
Author(s):  
Linta Reji ◽  
Bradley B. Tolar ◽  
Jason M. Smith ◽  
Francisco P. Chavez ◽  
Christopher A. Francis
Keyword(s):  
Water Column ◽  
Coastal Ocean ◽  
Ocean Water

scholarly journals Mercury in North-Eastern Atlantic Ocean Water

Nature ◽  
1971 ◽  
Vol 232 (5306) ◽  
pp. 112-112 ◽  
Author(s):  
T. M. LEATHERLAND ◽  
J. D. BURTON ◽  
M. J. MCCARTNEY ◽  
F. CULKIN
Keyword(s):  
Atlantic Ocean ◽  
Ocean Water ◽  
Eastern Atlantic Ocean ◽  
North Eastern

Ocean water clarity measurement using shipboard lidar systems

2002 ◽  
Author(s):  
David M. Allocca ◽  
Mark A. London ◽  
Thomas P. Curran ◽  
Brian M. Concannon ◽  
V. Michael Contarino ◽  
...  
Keyword(s):  
Water Clarity ◽  
Ocean Water

Corrosion Behavior of High Purity Vanadium

CORROSION ◽  
1960 ◽  
Vol 16 (2) ◽  
pp. 70t-72t ◽  
Author(s):  
DAVID SCHLAIN ◽  
CHARLES B. KENAHAN ◽  
WALTER L. ACHERMAN
Keyword(s):  
Stainless Steel ◽  
Nitric Acid ◽  
Corrosion Behavior ◽  
High Purity ◽  
Galvanic Corrosion ◽  
Acid Solutions ◽  
Ocean Water ◽  
Nitric Acid Solutions

Abstract Chemical and galvanic corrosion experiments at 35 C show that ductile vanadium is resistant to corrosion in substitute ocean water. It is also resistant in 60 percent sulfuric and 20 percent hydrochloric acids but corrodes rapidly in nitric acid solutions. Vanadium is less noble than stainless steel and copper and more noble than aluminum, magnesium and steel (SAE 4130) in substitute ocean water. 6.3.18

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