Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/4773
DC Field | Value | Language |
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dc.contributor.authorall | Corradini, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia | en |
dc.contributor.authorall | Merucci, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia | en |
dc.contributor.authorall | Prata, F.; Norwegian Institute for Air Research, Norway | en |
dc.date.accessioned | 2008-12-15T12:22:46Z | en |
dc.date.available | 2008-12-15T12:22:46Z | en |
dc.date.issued | 2008-12 | en |
dc.identifier.uri | http://hdl.handle.net/2122/4773 | en |
dc.description.abstract | Ash and SO2 were detected in the eruptions of Kasatochi and Okmok by infrared and UV sensors, including MODIS, AIRS and OMI. The simultaneous presence of ash and SO2 in these clouds presents a problem for retrieving SO2 column abundance because ash absorbs strongly near the 8.7 mm SO2 absorption feature. This leads to a overestimation of the MODIS SO2 abundance, unless the effects of ash are taken into account. Here, we use a new radiative transfer scheme to correct for the effects of ash on SO2 retrieval at 8.7 mm and also account for the effects of ash on SO2 retrieval at 7.3 mm, although this is much less severe, as we will demonstrate. The retrievals provide an improved quantitative description of the ash and SO2 in volcanic eruptive clouds and will assist in developing warnings for aviation. A comparison between MODIS retrievals and contemporaneous OMI SO2 retrievals and AIRS ash and SO2 retrievals has been also presented. | en |
dc.language.iso | English | en |
dc.relation.ispartof | AGU 2008 | en |
dc.subject | volcanic ash and SO2 retrievals | en |
dc.subject | Kasatochi | en |
dc.subject | Okmok | en |
dc.subject | ash correction procedure | en |
dc.subject | MODIS | en |
dc.subject | AIRS | en |
dc.subject | OMI | en |
dc.title | Volcanic ash and SO2 in the Kasatochi and Okmok eruptions: Interference and impact on quantitative retrievals | en |
dc.type | Poster session | en |
dc.description.status | Unpublished | en |
dc.subject.INGV | 01. Atmosphere::01.01. Atmosphere::01.01.07. Volcanic effects | en |
dc.description.ConferenceLocation | AGU Fall Meeting 15-19 December San Francisco | en |
dc.relation.references | Corradini, S., Merucci L., Prata A. J., Retrieval of SO2 from Thermal Infrared Satellite Measurements: Correction Procedures for the Effects of Volcanic Ash. Submitted to AMT, 2008. Gangale, G., Prata, A. J., and L. Clarisse, On the infrared signature of volcanic ash, Submitted to Geophys. Res. Lett., 2008. Prata, A. J., Infrared radiative transfer calculations for volcanic ash clouds. Geophys. Res. Lett., 16(11), 1293–1296, 1989. Realmuto, V.J., Abrams M.J., Buongiorno M.F., Pieri D.C., The use of multispectral thermal infrared image data to estimate the sulfur dioxide flux from volcanoes: a case study from Mount Etna, Sicily, July 29, 1986. J. Geophys. Res. 99 (B1), 481– 488, 1994. Wen, S. and Rose W., Retrieval of sizes and total masses of particles in volcanic aerosol clouds using AVHRR bands 4 and 5. J. Geophys. Res., 99(D3), 5421–5431, 1994. | en |
dc.description.obiettivoSpecifico | 1.5. TTC - Sorveglianza dell'attività eruttiva dei vulcani | en |
dc.description.fulltext | open | en |
dc.contributor.author | Corradini, S. | en |
dc.contributor.author | Merucci, L. | en |
dc.contributor.author | Prata, F. | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia | en |
dc.contributor.department | Norwegian Institute for Air Research, Norway | en |
item.openairetype | Poster session | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia | - |
crisitem.author.orcid | 0000-0001-9432-3246 | - |
crisitem.author.orcid | 0000-0001-6910-8800 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 01. Atmosphere | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Conference materials |
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File | Description | Size | Format | |
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Corradini_AGU_2008.pdf.gz | 17.64 MB | Adobe PDF | View/Open |
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