Upper ocean model of dissolved atmospheric gases

Technical Report · Wed Jan 01 00:00:00 EST 1992

DOI:https://doi.org/10.2172/6661198· OSTI ID:6661198

Schudlich, R; Emerson, S

The goal of this project is to estimate the rate of biological oxygen production at Hawaiian Ocean Time-series station ALOHA in the central North Pacific ocean. Our approach is to use an upper ocean model together with measurements to interpret an annual cycle of temperature, salinity, dissolved oxygen, argon, nitrogen, and the stable isotope ratio of oxygen at station ALOHA. This project represents the first upper ocean geochemical study in which model predictions are verifiable by independent measurements. Using the model, we will be able to assess the relative roles played by physical processes (air-sea gas exchange, air injection by bubbles, temperature-induced changes in gas solubility, trapping below the mixed layer, and diffusion) and biological processes (photosynthesis, respiration, and nutrient recycling) in producing the observed distribution of dissolved atmospheric gases. The long term goal of this project is to understand the utility of chemical tracers for quantifying biological processes in the ocean.

• Research Organization: Washington Univ., Seattle, WA (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FG06-90ER61037
• OSTI ID: 6661198
• Report Number(s): DOE/ER/61037-1; ON: DE93010151
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
58 GEOSCIENCES
ARGON
CONCENTRATION RATIO
NITROGEN
OXYGEN
OXYGEN 18
PACIFIC OCEAN
GEOCHEMISTRY
MATHEMATICAL MODELS
AIR-WATER INTERACTIONS
HAWAII
MINERAL CYCLING
OCEANIC CIRCULATION
ONE-DIMENSIONAL CALCULATIONS
PROGRESS REPORT
SALINITY
CHEMISTRY
DEVELOPED COUNTRIES
DOCUMENT TYPES
ELEMENTS
EVEN-EVEN NUCLEI
FLUIDS
GASES
ISOTOPES
LIGHT NUCLEI
NONMETALS
NORTH AMERICA
NUCLEI
OXYGEN ISOTOPES
RARE GASES
SEAS
STABLE ISOTOPES
SURFACE WATERS
USA
540320* - Environment
Aquatic- Chemicals Monitoring & Transport- (1990-)
580000 - Geosciences