The Effect of the 12-micrometer Band: Comparing GOES-11 and GOES-12 Data Using the 3-Channel Volcanic Ash Algorithm

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dc.creatorMatson, Emily M.
dc.date2006-08-25
dc.date.accessioned2026-07-07T07:25:54Z
dc.date.available2026-07-07T07:25:54Z
dc.descriptionThe 12-micrometer channel on GOES-11 has been replaced by the 13.3-micrometer channel on the latest geosynchronous satellite, GOES-12. There has been concern that this 13.3-micrometer channel will not be as accurate in detecting volcanic ash. Volcanic ash is highlighted using a special volcanic ash algorithm, an arithmetic combination of the brightness temperatures as measured by three channels, yielding a unitless brightness count whose values comprise an IR image. Degradation in cloud detection, especially low clouds, was also expected. IR data from GOES-11 and GOES-12 for two Mexican volcanoes, Colima and Popocatepetl, was analyzed. The data indicates that, in general, the GOES-11 volcanic ash algorithm with the 12-micrometer band provides much better data for various types of clouds. It emphasizes the importance of the 12-micrometer band and provides scope for future research in this area.
dc.descriptionPaper satisfies senior tech lab requirement (summer mentorship) for Thomas Jefferson High School for Science and Technology (TJHSST),Alexandria, VA; 23 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/physics/0608254
dc.identifierhttp://arxiv.org/abs/physics/0608254
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/116888
dc.subjectAtmospheric and Oceanic Physics
dc.titleThe Effect of the 12-micrometer Band: Comparing GOES-11 and GOES-12 Data Using the 3-Channel Volcanic Ash Algorithm
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