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  • 1
    Monograph available for loan
    Monograph available for loan
    The potential impact of satellite data relay systems on the operations of hydrologic data programs (1975)
    U. S. Geological Survey
    Details Availability
    Call number: MOP 44026 / Mitte
    Type of Medium: Monograph available for loan
    Location: MOP - must be ordered
    Branch Library: GFZ Library
    Location Call Number Expected Availability
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    BOOK
    Link to Library Catalog
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  • 2
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    USDI DCS technical support: Mississippi Test Facility (1975)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: The objective of the technical support effort is to provide hardware and data processing support to DCS users so that application of the system may be simply and effectively implemented. Technical support at Mississippi Test Facility (MTF) is concerned primarily with on-site hardware. The first objective of the DCP hardware support was to assure that standard measuring apparatus and techniques used by the USGS could be adapted to the DCS. The second objective was to try to standardize the miscellaneous variety of parameters into a standard instrument set. The third objective was to provide the necessary accessories to simplify the use and complement the capabilities of the DCP. The standard USGS sites have been interfaced and are presently operating. These sites are stream gauge, ground water level and line operated quality of water. Evapotranspiration, meteorological and battery operated quality of water sites are planned for near future DCP operation. Three accessories which are under test or development are the Chu antenna, solar power supply and add-on memory. The DCP has proven to be relatively easy to interface with many monitors. The large antenna is awkward to install and transport. The DCS has met the original requirements well; it has and is proving that an operation, satellite-based data collection system is feasible.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA. Wallops Station Data Collection System; p 57-64
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Geothermal flux through palagonitized tephra, Surtsey, Iceland - The Surtsey temperature-data-relay experiment via Landsat-1 (1976)
    In:  Other Sources
    Details
    Publication Date: 2011-08-17
    Description: The net geothermal flux through palagonitized basaltic tephra rims of the Surtur I and Surtur II craters at Surtsey, Iceland, in 1972, is estimated at 780 plus or minus 325 microcal/sq cm/s, indicating a decline since 1969 when a flux of 1500 microcal/sq cm/s was estimated. Heat flux in this range characterizes the postvolcanic environment on Surtsey in which the subaerial polagonitization of basaltic tephra is associated with mass transfer of hydrothermal vapor, either of meteoric or sea-water origin, only a few years after cessation of eruptive activity. The flux estimation is the result of the Surtsey data-relay experiment via Landsat-1 which was carried out in several phases. Temperature data were transmitted for a 38-day period in November and December 1972. A near-surface vertical gradient of 69.4 C/m was obtained, suggesting a mixed mechanism of heat transfer, partitioned between conduction and convection.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: U.S. Geological Survey; vol. 4
    Format: text
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    NASA TECHNICAL REPORTS
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