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  • Meteorology and Climatology
  • 2010-2014
  • 1995-1999
  • 1985-1989  (3)
  • 1900-1904
  • 1985  (3)
  • 1
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    Seafloor hydrothermal activity and spreading rates: the Eocene carbon dioxide greenhouse revisted (1985)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: A suggestion has been made that enhanced rates of hydrothermal activity during the Eocene could have caused a global warming by adding calcium to the ocean and pumping CO2 into the atmosphere (Owen and Rea, 1984). This phenomenon was purported to be consistent with the predictions of the CO2 geochemical cycle model of Berner, Lasaga and Garrels (1983) (henceforth BLAG). In fact, however, the BLAG model predicts only a weak connection between hydrothermal activity and atmospheric CO2 levels. By contrast, it predicts a strong correlation between seafloor spreading rates and pCO2, since the release rate of CO2 from carbonate metamorphism is assumed to be proportional to the mean spreading rate. The Ecocene warming can be conveniently explained if the BLAG model is extended by assuming that the rate of carbonate metamorphism is also proportional to the total length of the midocean ridges from which the spreading originates.
    Keywords: Meteorology and Climatology
    Type: Geochimica et cosmochimica acta (ISSN 0016-7037); Volume 49; 2541-4
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Proceedings of the NASA Symposium on Global Wind Measurements (1985)
    In:  CASI
    Details
    Publication Date: 2019-11-14
    Description: This Proceedings contains a collection of the papers which were presented at the Symposium and Workshop on Global Wind Measurements. The objectives and agenda for the Symposium and Workshop were decided during a planning meeting held in Washington, DC, on 5 February 1985. Invited papers were presented at the Symposium by meteorologists and leading experts in wind sensing technology from the United States and Europe on: (1) the meteorological uses and requirements for wind measurements; (2) the latest developments in wind sensing technology; and (3) the status of our understanding of the atmospheric aerosol distribution. A special session was also held on the latest development in wind sensing technology by the United States Air Force.
    Keywords: Meteorology and Climatology
    Type: NASA-TM-105472 , NAS 1.15:105472 , NASA Symposium on Global Wind Measurements; Jul 29, 1985 - Aug 01, 1985; Columbia, MD; United States
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Trace water sensor (1985)
    In:  CASI
    Details
    Publication Date: 2019-08-15
    Description: A solid electrolytic type hygrometer is described, which operates with high reliability while providing rapid and sensitive response. A gold foil electrode (16) is wrapped about a hollow glass cylinder (18), a sheet (12) of hygroscopic-electrolytic material is wrapped about the foil, and a wire (14) is wound around the outside of the electrolytic sheet. Moisture passing between wire turns can be absorbed by the electrolytic material (12), and then dissociated by current passed by the electrodes (14, 16) through the electrolytic material. The cylinder has a slit (20) extending along its length, to allow resilient expansion to press the sheet of electrolytic material firmly against the electrodes. The wire turns lie against one another to cause rapid dissociation of moisture throughout the electrolytic material. Additional guard wires (42,44, FIG. 2) lie at opposite ends of the electrolytic sheet, and currents pass through them to avoid moisture buildup at the ends of the main wire coil. The electrical current through the sheet or membrane is proportional to the partial pressure of the water-vapor.
    Keywords: Meteorology and Climatology
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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