Comparison of Ash Detection Techniques Using TOMS, MODIS, AVHRR, and GMS: A Case Study of the August 18 and 28 Eruption Clouds of Miyakejima Volcano, Japan

The goal of this project is to understand and explain the limitations of various satellite sensors in their capability of detecting volcanic ash. Both ultraviolet (Total Ozone Mapping Spectrometer (TOMS)) and infrared (Moderate Resolution Imaging Spectroradiometer (MODIS), Advanced Very High Resolution Radiometer (AVHRR) and Geostationary Meteorological Satellite (GMS)) satellite sensors are capable of detecting volcanic ash from volcanic eruptions. However, infrared sensors are susceptible to interference caused by water vapor. The ability of each sensor to detect volcanic ash varies, since each sensor uses different wavelengths. Since the Miyakejima volcano presents a moist atmosphere, it creates an opportunity to explore the sensitivity of the different sensors to water vapor in the atmosphere. Data from four different satellite sensors are compared in this study of the Miyakejima volcano. The data is utilized to produce constraints on the distributions and masses of ash produced by the August 18 and 28 volcanic eruptions.

  • Corporate Authors:

    Federal Coordinator, Meteorological Services & Support Research

    8455 Colesville Road, Suite 1500
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  • Authors:
    • McCarthy, Emily
    • Bluth, Gregg
    • Watson, I Matthew
    • Tupper, Andrew
    • Kamada, Yasuhiro
  • Conference:
  • Publication Date: 2004-11

Language

  • English

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: 5p
  • Monograph Title: Proceedings of the 2nd International Conference on Volcanic Ash and Aviation Safety, June 21-24, 2004, Alexandria, Virginia

Subject/Index Terms

Filing Info

  • Accession Number: 01000855
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 9 2005 2:40PM