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1 edition of Ambient sound in the ocean induced by heavy precipitation and the subsequent predictability of rainfall rate found in the catalog.

Ambient sound in the ocean induced by heavy precipitation and the subsequent predictability of rainfall rate

Charles C. McGlothin

Ambient sound in the ocean induced by heavy precipitation and the subsequent predictability of rainfall rate

by Charles C. McGlothin

  • 8 Want to read
  • 37 Currently reading

Published by Naval Postgraduate School in Monterey, California .
Written in English

    Subjects:
  • Sound,
  • Surfaces,
  • Rain and rainfall,
  • Clouds,
  • Spectrum analysis,
  • Storms,
  • Ocean,
  • Prophecies,
  • Bays,
  • Algorithms,
  • Raindrops,
  • Bubbles,
  • Drops,
  • Underwater acoustics

  • About the Edition

    An experiment was preformed in the Gulf Mexico to characterize the underwater sound generated by the heavy precipitation and to determine if rainfall rate can be measured using underwater sound. During this stage of the experiment, twenty-two data sets were recorded with rainfall rates up to 340 mm/ hr. For a given rainfall rate, it is found that sound levels from heavy convective precipitation are higher at the beginning of the storm and when rainfall rate is increasing than at the end of the storm event or when rainfall rates are decreasing. This may be due to changes in the drop size distribution during the life cycle of the storm or to variations in the temperature difference between the raindrop and the ocean surfaces. Very heavy rainfall generates near surface bubble layers or bubble clouds which attenuate sound energy at higher frequencies. The distinctive 15 kHz peak in the sound spectrum for light rain or absent during heavy rain suggesting that the sound production mechanism previously identified for small drops is suppressed by heavy rain even though those small drops are undoubtedly present during heavy rainfall rates. These data show a very high correlation between underwater sound level and the logarithm of the rainfall rate except when high wind speeds and high rainfall rates are present. An empirical rainfall rate algorithm for convective precipitation is proposed suggesting that sound energy is directly proportional to rainfall rate.

    Edition Notes

    StatementCharles C. McGlothin, Jr
    ContributionsNaval Postgraduate School (U.S.). Department of Oceanography
    The Physical Object
    Format[electronic resource] /
    Pagination63 p. :
    Number of Pages63
    ID Numbers
    Open LibraryOL25519992M
    OCLC/WorldCa724136099


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Ambient sound in the ocean induced by heavy precipitation and the subsequent predictability of rainfall rate by Charles C. McGlothin Download PDF EPUB FB2