Index Catalog // ScholarsArchive@OSU

High-frequency measurements of total CO₂ : Method development and first oceanographic observations

Creator:: Bandstra, Leah M.
Abstract:: As concern grows about the long-term effects of increasing atmospheric CO₂ concentrations, it becomes increasingly important to understand the cycling of carbon on Earth, particularly in the dynamic marine reservoir. Gas exchange and relatively rapid ocean mixing times mean that the oceans play a significant role in determining the atmospheric...
Resource Type:: Masters Thesis
Full Text:: Reserved High-Frequency Measurements of Total CO,: Method Development and First Oceanographic

Design and calibration of a deep ocean nuclear moisture meter

Creator:: Hurley, James Leo
Abstract:: A prototype deep ocean nuclear moisture meter was developed based on the detection of epithermal neutrons backscattered from marine sediment molecules. Development consisted of choosing a source, a detector, containment materials, and associated counting equipment, followed by the construction and calibration of the probe. Thermal neutron response of the probe...
Resource Type:: Masters Thesis
Full Text:: thirty years in the development of instruments which can determine soil density and/or moisture without

Analysis of a two-point mooring for a spar buoy

Creator:: Dominguez, Richard Frank, Nath, John H., Neshyba, Steve, and Young, David A.
Abstract:: Recent activity in the exploration and development of the ocean's resources has created a need for scientific and technical knowledge in many areas. One example is the need for rapid and reliable techniques for ascertaining and for the predictions of sea state and the atmospheric conditions at particular ocean locations....
Resource Type:: Technical Report
Full Text:: ocean would allow for continuous measurement of physical oceanographic and meteorological data

High-frequency measurement of partial pressure and total concentration of carbon dioxide in seawater using microporous hydrophobic membrane contractors

Creator:: Hales, Burke, Chipman, David, and Takahashi, Taro
Abstract:: To investigate CO₂ chemistry in ocean water with greater time-space resolutions, we systems, which have state-of-the-art precision but an order of magnitude or better analysis, for carbon dioxide partial pressures (Pco₂) and total carbon dioxide Pco₂ system was based on equilibration of a CO₂-free carrier gas stream with seawater sample...
Resource Type:: Article
Full Text:: . Hales et al. High-frequency CO2 measurement 358 Fig. 1. Schematics of the (A) PCO2 and (B) TCO2

Impact of the Ocean’s Overturning Circulation on Atmospheric CO2

Creator:: Schmittner, Andreas, Brook, Edward J., and Ahn, Jinho
Abstract:: A coupled climate-carbon cycle model and ice core CO2 data from the last glacial period are used to explore the impact of changes in ocean circulation on atmospheric CO2 concentrations on millennial time scales. In the model, stronger wind driven circulation increases atmospheric CO2. Changes in the buoyancy driven deep...
Resource Type:: Part of Book
Full Text:: models are sensitive to high latitude processes and predict an increase of CO2 if vertical mixing in the

Results of an intercalibration at sea of hydrographic and chemical observations and standards aboard the USSR ship PROFESSOR VIESE and the US research vessel THOMAS G. THOMPSON during FDRAKE 76

Creator:: Gordon, Louis Irwin, 1928-, Anderson, George Cameron, 1926-, and Nowlin, Worth D.
Abstract:: On 15 February 1976 the USSR Research Ship PROFESSOR VIESE and the US R/V T.G. THOMPSON rendezvoused in the southern Drake Passage. The ships simultaneously occupied hydrographic stations as close together as feasible. Calibration standards for salinity, dissolved oxygen, and dissolved reactive phosphate and silicate were then exchanged by the...
Resource Type:: Technical Report
Full Text:: Sea of Hydrographic and Chemical Observations Aboard the USSR Ship PROFESSOR VIESE and the US Research

Physical oceanographic observations from the Resolute 1995 Ice Camp, Barrow Strait, April/May 1995

Creator:: Crawford, Greg and Padman, Laurie
Abstract:: A multidisciplinary oceanographic research program was carried out by US and Canadian investigators in the spring of 1995 in the Canadian Arctic, near Lowther Island in Barrow Strait. The program, referred to here as Resolute 95 (or Res95), had a variety of objectives, including detailed examination of the mechanisms responsible...
Resource Type:: Technical Report
Full Text:: described and observations are summarized. . 2 TABLE OF CONTENTS 1. OVERVIEW 4 2. MOORING MEASUREMENTS

Method report for total organic carbon measurements GEOSECS

Creator:: Gordon, Louis Irwin, 1928-, Barstow, L., Lilley, M., Seifert, E. A., and Park, P. K.
Abstract:: The analytical method employed for the Total Organic Carbon (TOC) project in the Geochemical Ocean Sections Study (GEOSECS) is described in detail. The method generally follows that of Menzel and Vaccaro as modified by several subsequent workers including the GEOSECS group at Oregon State University which carried out the TOC...
Resource Type:: Technical Report
Full Text:: . Total organic carbon in seawater - comparison of measurements using persulfate oxidation and high

High-frequency measurement of seawater chemistry: Flow-injection analysis of macronutrients

Creator:: Hales, Burke, van Geen, Alexander, and Takahashi, Taro
Abstract:: We adapted a commercially available flow‐injection autoanalyzer (Lachat Quik‐Chem 8000) to measure seawater nitrate concentrations at a rate of nearly 0.1 Hz and phosphate and silicate concentrations at a rate half that. Several minor improvements, including reduced sample‐loop size, high sample flushing rate, modified carrier chemistry, and use of peak...
Resource Type:: Article
Full Text:: measurement of nutrient concentration distributions at similarly High-frequency measurement of seawater

The analysis and recommended design of a high-resolution digital data acquisition system for the in situ measurement of various physical and chemical parameters of sea water

Creator:: Albin, Arthur Grayson
Abstract:: The lack of availability of a single, complete paper on the analysis of a digital data acquisition system for in situ oceanographic measurements brought about the present work. In order to compile an accurate technical paper on such a complex system, it was necessary to design, construct, and calibrate a...
Resource Type:: Dissertation
Full Text:: analysis of such a system. Oceanographic in situ measurements are made in a remote and hostile

ScholarsArchive@OSU

High-frequency measurements of total CO₂ : Method development and first oceanographic observations

Design and calibration of a deep ocean nuclear moisture meter

Analysis of a two-point mooring for a spar buoy

High-frequency measurement of partial pressure and total concentration of carbon dioxide in seawater using microporous hydrophobic membrane contractors

Impact of the Ocean’s Overturning Circulation on Atmospheric CO2

Results of an intercalibration at sea of hydrographic and chemical observations and standards aboard the USSR ship PROFESSOR VIESE and the US research vessel THOMAS G. THOMPSON during FDRAKE 76

Physical oceanographic observations from the Resolute 1995 Ice Camp, Barrow Strait, April/May 1995

Method report for total organic carbon measurements GEOSECS

High-frequency measurement of seawater chemistry: Flow-injection analysis of macronutrients

The analysis and recommended design of a high-resolution digital data acquisition system for the in situ measurement of various physical and chemical parameters of sea water

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