SO2 AND ASH VOLCANIC PLUME RETRIEVALS FROM THE 24 NOVEMBER 2006 Mt. ETNA ERUPTION USING MSG-SEVIRI DATA: SO2 VALIDATION AND ASH CORRECTION PROCEDURE
Estimation of the daily trend of sulfur dioxide and ash from the thermal infrared measurements of the Spin Enhanced Visible and Infrared Imager (SEVIRI), on board the Meteosat Second Generation (MSG) geosynchronous satellite, has been carried out. The SO2 retrieval is validated vicariously by using...
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Other Authors: | , , , , , , , , , , , |
Format: | Other/Unknown Material |
Language: | English |
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2008
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Online Access: | http://hdl.handle.net/2122/4774 |
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ftingv:oai:www.earth-prints.org:2122/4774 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) |
op_collection_id |
ftingv |
language |
English |
topic |
volcanic ash and SO2 retrievals MODIS retrievals MSG-SEVIRI retrievals ash correction procedure 01. Atmosphere::01.01. Atmosphere::01.01.07. Volcanic effects |
spellingShingle |
volcanic ash and SO2 retrievals MODIS retrievals MSG-SEVIRI retrievals ash correction procedure 01. Atmosphere::01.01. Atmosphere::01.01.07. Volcanic effects Corradini, S. Merucci, L. Prata, F. Spinetti, C. Silvestri, M. Musacchio, M. Burton, M. Caltabiano, T. Buongiorno, M. F. SO2 AND ASH VOLCANIC PLUME RETRIEVALS FROM THE 24 NOVEMBER 2006 Mt. ETNA ERUPTION USING MSG-SEVIRI DATA: SO2 VALIDATION AND ASH CORRECTION PROCEDURE |
topic_facet |
volcanic ash and SO2 retrievals MODIS retrievals MSG-SEVIRI retrievals ash correction procedure 01. Atmosphere::01.01. Atmosphere::01.01.07. Volcanic effects |
description |
Estimation of the daily trend of sulfur dioxide and ash from the thermal infrared measurements of the Spin Enhanced Visible and Infrared Imager (SEVIRI), on board the Meteosat Second Generation (MSG) geosynchronous satellite, has been carried out. The SO2 retrieval is validated vicariously by using satellite sensors and with ground measurements. The 24 November 2006 tropospheric eruption of Etna volcano is used as a test case. MSG-SEVIRI is an optical imaging radiometer characterized by 12 spectral channels, a high temporal resolution (one image every 15 minutes), and a 10 km2 footprint. The instrument’s spectral range includes the 7.3 and 8.7 mm bands (channels 6 and 7) used for SO2 retrieval and the 10.8 and 12.0 mm (channels 9 and 10) split window bands used for ash detection and retrievals. The SO2 columnar abundance and ash are retrieved simultaneously by means of a Look-Up Table least squares fit procedure for SO2 and using a Brightness Temperature Difference algorithm for ash. The SO2 retrievals obtained using different satellite sensors such as AIRS and MODIS have been carried out and compared with SEVIRI estimations. The results were validated using the permanent mini-DOAS ground system network (FLAME) installed and operated by INGV on Mt. Etna. Results show that the simultaneous presence of SO2 and ash in a volcanic plume yields a significant error in the SO2 columnar abundance retrieval in multispectral Thermal Infrared (TIR) data. The ash plume particles with high effective radius (from 1 to 10 mm) reduce the top of atmosphere radiance in the entire TIR spectral range, including the channels used for the SO2 retrieval. The net effect is a significant SO2 overestimation. To take this effect into account a novel ash correction procedure is presented and applied to the retrieval. Unpublished IAVCEI 2008 General Assembly Reykjavik - ICELAND 17-22 August 1.5. TTC - Sorveglianza dell'attività eruttiva dei vulcani open |
author2 |
Corradini, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia Merucci, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia Prata, F.; Norwegian Institute for Air Research, Norway Spinetti, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia Silvestri, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia Musacchio, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia Burton, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italia Caltabiano, T.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italia Buongiorno, M. F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia Norwegian Institute for Air Research, Norway Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia |
format |
Other/Unknown Material |
author |
Corradini, S. Merucci, L. Prata, F. Spinetti, C. Silvestri, M. Musacchio, M. Burton, M. Caltabiano, T. Buongiorno, M. F. |
author_facet |
Corradini, S. Merucci, L. Prata, F. Spinetti, C. Silvestri, M. Musacchio, M. Burton, M. Caltabiano, T. Buongiorno, M. F. |
author_sort |
Corradini, S. |
title |
SO2 AND ASH VOLCANIC PLUME RETRIEVALS FROM THE 24 NOVEMBER 2006 Mt. ETNA ERUPTION USING MSG-SEVIRI DATA: SO2 VALIDATION AND ASH CORRECTION PROCEDURE |
title_short |
SO2 AND ASH VOLCANIC PLUME RETRIEVALS FROM THE 24 NOVEMBER 2006 Mt. ETNA ERUPTION USING MSG-SEVIRI DATA: SO2 VALIDATION AND ASH CORRECTION PROCEDURE |
title_full |
SO2 AND ASH VOLCANIC PLUME RETRIEVALS FROM THE 24 NOVEMBER 2006 Mt. ETNA ERUPTION USING MSG-SEVIRI DATA: SO2 VALIDATION AND ASH CORRECTION PROCEDURE |
title_fullStr |
SO2 AND ASH VOLCANIC PLUME RETRIEVALS FROM THE 24 NOVEMBER 2006 Mt. ETNA ERUPTION USING MSG-SEVIRI DATA: SO2 VALIDATION AND ASH CORRECTION PROCEDURE |
title_full_unstemmed |
SO2 AND ASH VOLCANIC PLUME RETRIEVALS FROM THE 24 NOVEMBER 2006 Mt. ETNA ERUPTION USING MSG-SEVIRI DATA: SO2 VALIDATION AND ASH CORRECTION PROCEDURE |
title_sort |
so2 and ash volcanic plume retrievals from the 24 november 2006 mt. etna eruption using msg-seviri data: so2 validation and ash correction procedure |
publishDate |
2008 |
url |
http://hdl.handle.net/2122/4774 |
long_lat |
ENVELOPE(-19.191,-19.191,63.706,63.706) |
geographic |
Etna |
geographic_facet |
Etna |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
IAVCEI 2008 Prata A. J. Infrared radiative transfer calculations for volcanic ash clouds. Geophys. Res. Lett., Vol. 16, No. 11, pp. 1293-1296, 1989. 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., Vol. 99,no. D3, pp. 5421-5431, 1994. 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. Wright T. E., Burton M.,. Pyle D. M., Caltabiano T. Scanning Tomography of SO2 Distribution in a Volcanic Gas Plume. Gephys. Res. Lett., DOI:10.1029, 2008. http://hdl.handle.net/2122/4774 |
op_rights |
open |
_version_ |
1766043208383463424 |
spelling |
ftingv:oai:www.earth-prints.org:2122/4774 2023-05-15T16:52:48+02:00 SO2 AND ASH VOLCANIC PLUME RETRIEVALS FROM THE 24 NOVEMBER 2006 Mt. ETNA ERUPTION USING MSG-SEVIRI DATA: SO2 VALIDATION AND ASH CORRECTION PROCEDURE Corradini, S. Merucci, L. Prata, F. Spinetti, C. Silvestri, M. Musacchio, M. Burton, M. Caltabiano, T. Buongiorno, M. F. Corradini, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia Merucci, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia Prata, F.; Norwegian Institute for Air Research, Norway Spinetti, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia Silvestri, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia Musacchio, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia Burton, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italia Caltabiano, T.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Catania, Catania, Italia Buongiorno, M. F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia Norwegian Institute for Air Research, Norway Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia 2008-08 http://hdl.handle.net/2122/4774 en eng IAVCEI 2008 Prata A. J. Infrared radiative transfer calculations for volcanic ash clouds. Geophys. Res. Lett., Vol. 16, No. 11, pp. 1293-1296, 1989. 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., Vol. 99,no. D3, pp. 5421-5431, 1994. 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. Wright T. E., Burton M.,. Pyle D. M., Caltabiano T. Scanning Tomography of SO2 Distribution in a Volcanic Gas Plume. Gephys. Res. Lett., DOI:10.1029, 2008. http://hdl.handle.net/2122/4774 open volcanic ash and SO2 retrievals MODIS retrievals MSG-SEVIRI retrievals ash correction procedure 01. Atmosphere::01.01. Atmosphere::01.01.07. Volcanic effects Poster session 2008 ftingv 2022-07-29T06:05:13Z Estimation of the daily trend of sulfur dioxide and ash from the thermal infrared measurements of the Spin Enhanced Visible and Infrared Imager (SEVIRI), on board the Meteosat Second Generation (MSG) geosynchronous satellite, has been carried out. The SO2 retrieval is validated vicariously by using satellite sensors and with ground measurements. The 24 November 2006 tropospheric eruption of Etna volcano is used as a test case. MSG-SEVIRI is an optical imaging radiometer characterized by 12 spectral channels, a high temporal resolution (one image every 15 minutes), and a 10 km2 footprint. The instrument’s spectral range includes the 7.3 and 8.7 mm bands (channels 6 and 7) used for SO2 retrieval and the 10.8 and 12.0 mm (channels 9 and 10) split window bands used for ash detection and retrievals. The SO2 columnar abundance and ash are retrieved simultaneously by means of a Look-Up Table least squares fit procedure for SO2 and using a Brightness Temperature Difference algorithm for ash. The SO2 retrievals obtained using different satellite sensors such as AIRS and MODIS have been carried out and compared with SEVIRI estimations. The results were validated using the permanent mini-DOAS ground system network (FLAME) installed and operated by INGV on Mt. Etna. Results show that the simultaneous presence of SO2 and ash in a volcanic plume yields a significant error in the SO2 columnar abundance retrieval in multispectral Thermal Infrared (TIR) data. The ash plume particles with high effective radius (from 1 to 10 mm) reduce the top of atmosphere radiance in the entire TIR spectral range, including the channels used for the SO2 retrieval. The net effect is a significant SO2 overestimation. To take this effect into account a novel ash correction procedure is presented and applied to the retrieval. Unpublished IAVCEI 2008 General Assembly Reykjavik - ICELAND 17-22 August 1.5. TTC - Sorveglianza dell'attività eruttiva dei vulcani open Other/Unknown Material Iceland Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) Etna ENVELOPE(-19.191,-19.191,63.706,63.706) |