BULLETIN OF THE GEOLOGICAL SURVEY OF JAPAN
Online ISSN : 2186-490X
Print ISSN : 1346-4272
ISSN-L : 1346-4272
Article
Ash fall areas associated with the Usu 2000 eruption observed by ASTER.
Minoru URAIYoshihisa KAWANABEJun'ichi ITOHAkira TAKADAMasatane KATO
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2001 Volume 52 Issue 4-5 Pages 189-197

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Abstract

Volcanic ash fall areas associated with Usu 2000 eruption can be detected as black stripes, including areas that could not be traced from field survey. The areas that have reflectance less than 0.6 derived from ASTER band 3 are corresponding to the ash fall areas over 8 g/m2. Visible to shortwave infrared reflectance of the volcanic ash have been measured under controlled moisture contents. It is possible to estimate the amount of volcanic ash deposits using the Volcanic Ash Reflectance Model based on the reflectance measurements of the volcanic ash.

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© 2001 National Institute of Advanced Industrial Science and Technology, Geological Survey of Japan
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