You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither SPIE nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the SPIE website.
23 December 1994Monitoring Pinatubo paroxysmal eruption plume of June 1991 using NOAA and GMS satellite images
The Mount Pinatubo eruption (15 degree(s)07'N, 120 degree(s)20'E) in the Philippines of June 1991 was among the largest volcanic eruptions of this century in terms of effects on stratospheric aerosols. The activity culminated in a paroxysmal eruption on June 15th and developed a giant umbrella cloud which introduced a large amount of ashes and gases into the stratosphere. The high frequency of coverage of the NOAA (USA) and GMS (Japan) weather satellite enables a global monitoring of the rise and spreading dynamics of the Pinatubo volcanic cloud into the atmosphere. By integrating the maximum eruption height and the spreading rate over time, the total volume of pyroclastic material has been estimated to range between 3 and 4 Km3. Image processing techniques such as difference T4-T5 and Principal Component Analysis have been applied the discrimination between volcanic cloud, ice cloud (cirrus) and clouds containing water vapor and water droplets. These detection techniques provide an operational tool for tracking the horizontal dispersion. The results can be used in the fields of monitoring long distance transport of the volcanic cloud over land and sea, aircraft safety and global atmospherical impact.
The alert did not successfully save. Please try again later.
Carole Volon, Johan Lavreau, Alain Bernard, "Monitoring Pinatubo paroxysmal eruption plume of June 1991 using NOAA and GMS satellite images," Proc. SPIE 2309, Passive Infrared Remote Sensing of Clouds and the Atmosphere II, (23 December 1994); https://doi.org/10.1117/12.196691