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Depth Distribution Of The Maxima Of Extensive Air ShowerObservations of the extensive air showers from space can be free from interference by low altitude clouds and aerosols if the showers develop at a sufficiently high altitude. In this paper we explore the altitude distribution of shower maxima to determine the fraction of all showers that will reach their maxima at sufficient altitudes to avoid interference from these lower atmosphere phenomena. Typically the aerosols are confined within a planetary boundary layer that extends from only 2-3 km above the Earth's surface. Cloud top altitudes extend above 15 km but most are below 4 km. The results reported here show that more than 75% of the showers that will be observed by EUSO have maxima above the planetary boundary layer. The results also show that more than 50% of the showers that occur on cloudy days have their maxima above the cloud tops.
Document ID
Document Type
Conference Paper
Adams, J. H. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Howell, L. W. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 21, 2013
Publication Date
May 1, 2003
Subject Category
Space Radiation
Meeting Information
28th International Cosmic Ray Conference(Tsukuba)
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