Volcanic ash cloud observation using ground-based ka-band radar and near-infrared lidar ceilometer during the Eyjafjallajökull eruption
Active remote sensing techniques can probe volcanic ash plumes, but their sensitivity at a given distance depends upon the sensor transmitted power, wavelength and polarization capability. Building on a previous numerical study at centimeter wavelength, this work aims at i) simulating the distal ash...
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ftunivromairis:oai:iris.uniroma1.it:11573/763380 2024-04-14T08:13:38+00:00 Volcanic ash cloud observation using ground-based ka-band radar and near-infrared lidar ceilometer during the Eyjafjallajökull eruption MARZANO, FRANK SILVIO MEREU, LUIGI MONTOPOLI, MARIO D. Cimini G. Martucci Marzano, FRANK SILVIO Mereu, Luigi Montopoli, Mario D., Cimini G., Martucci 2014 ELETTRONICO http://hdl.handle.net/11573/763380 https://doi.org/10.4401/ag-6634 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000353524200009 journal:ANNALS OF GEOPHYSICS http://hdl.handle.net/11573/763380 doi:10.4401/ag-6634 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84940851569 info:eu-repo/semantics/openAccess Weather radar retrieval iceland aerosol mass info:eu-repo/semantics/article 2014 ftunivromairis https://doi.org/10.4401/ag-6634 2024-03-21T18:36:00Z Active remote sensing techniques can probe volcanic ash plumes, but their sensitivity at a given distance depends upon the sensor transmitted power, wavelength and polarization capability. Building on a previous numerical study at centimeter wavelength, this work aims at i) simulating the distal ash particles polarimetric response of millimeter-wave radar and multi-wavelength optical lidar; ii) developing and applying a model-based statistical retrieval scheme using a multi-sensor approach. The microphysical-electromagnetic forward model of volcanic ash particle distribution, previously set up at microwaves, is extended to include non-spherical particle shapes, vesicular composition, silicate content and orientation phenomena for both millimeter and optical bands. Monte Carlo generation of radar and lidar signatures are driven by random variability of volcanic particle main param-eters, using constraints from available data and experimental evidences. The considered case study is related to the ground-based observation of the Eyjafjallajökull (Iceland) volcanic ash plume on May 15, 2010, carried out by the Atmospheric Research Station at Mace Head (Ireland) with a 35-GHz Ka-band Doppler cloud radar and a 1064-nm ceilometer lidar. The detection and estimation of ash layer presence and composition is carried out using a Bayesian approach, which is trained by the Monte Carlo model-based dataset. Retrieval results are corroborated exploiting auxiliary data such as those from a ground-based microwave radiometer also positioned at Mace Head. Article in Journal/Newspaper Iceland Sapienza Università di Roma: CINECA IRIS Mace ENVELOPE(155.883,155.883,-81.417,-81.417) Annals of Geophysics 57 |
institution |
Open Polar |
collection |
Sapienza Università di Roma: CINECA IRIS |
op_collection_id |
ftunivromairis |
language |
English |
topic |
Weather radar retrieval iceland aerosol mass |
spellingShingle |
Weather radar retrieval iceland aerosol mass MARZANO, FRANK SILVIO MEREU, LUIGI MONTOPOLI, MARIO D. Cimini G. Martucci Volcanic ash cloud observation using ground-based ka-band radar and near-infrared lidar ceilometer during the Eyjafjallajökull eruption |
topic_facet |
Weather radar retrieval iceland aerosol mass |
description |
Active remote sensing techniques can probe volcanic ash plumes, but their sensitivity at a given distance depends upon the sensor transmitted power, wavelength and polarization capability. Building on a previous numerical study at centimeter wavelength, this work aims at i) simulating the distal ash particles polarimetric response of millimeter-wave radar and multi-wavelength optical lidar; ii) developing and applying a model-based statistical retrieval scheme using a multi-sensor approach. The microphysical-electromagnetic forward model of volcanic ash particle distribution, previously set up at microwaves, is extended to include non-spherical particle shapes, vesicular composition, silicate content and orientation phenomena for both millimeter and optical bands. Monte Carlo generation of radar and lidar signatures are driven by random variability of volcanic particle main param-eters, using constraints from available data and experimental evidences. The considered case study is related to the ground-based observation of the Eyjafjallajökull (Iceland) volcanic ash plume on May 15, 2010, carried out by the Atmospheric Research Station at Mace Head (Ireland) with a 35-GHz Ka-band Doppler cloud radar and a 1064-nm ceilometer lidar. The detection and estimation of ash layer presence and composition is carried out using a Bayesian approach, which is trained by the Monte Carlo model-based dataset. Retrieval results are corroborated exploiting auxiliary data such as those from a ground-based microwave radiometer also positioned at Mace Head. |
author2 |
Marzano, FRANK SILVIO Mereu, Luigi Montopoli, Mario D., Cimini G., Martucci |
format |
Article in Journal/Newspaper |
author |
MARZANO, FRANK SILVIO MEREU, LUIGI MONTOPOLI, MARIO D. Cimini G. Martucci |
author_facet |
MARZANO, FRANK SILVIO MEREU, LUIGI MONTOPOLI, MARIO D. Cimini G. Martucci |
author_sort |
MARZANO, FRANK SILVIO |
title |
Volcanic ash cloud observation using ground-based ka-band radar and near-infrared lidar ceilometer during the Eyjafjallajökull eruption |
title_short |
Volcanic ash cloud observation using ground-based ka-band radar and near-infrared lidar ceilometer during the Eyjafjallajökull eruption |
title_full |
Volcanic ash cloud observation using ground-based ka-band radar and near-infrared lidar ceilometer during the Eyjafjallajökull eruption |
title_fullStr |
Volcanic ash cloud observation using ground-based ka-band radar and near-infrared lidar ceilometer during the Eyjafjallajökull eruption |
title_full_unstemmed |
Volcanic ash cloud observation using ground-based ka-band radar and near-infrared lidar ceilometer during the Eyjafjallajökull eruption |
title_sort |
volcanic ash cloud observation using ground-based ka-band radar and near-infrared lidar ceilometer during the eyjafjallajökull eruption |
publishDate |
2014 |
url |
http://hdl.handle.net/11573/763380 https://doi.org/10.4401/ag-6634 |
long_lat |
ENVELOPE(155.883,155.883,-81.417,-81.417) |
geographic |
Mace |
geographic_facet |
Mace |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000353524200009 journal:ANNALS OF GEOPHYSICS http://hdl.handle.net/11573/763380 doi:10.4401/ag-6634 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84940851569 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.4401/ag-6634 |
container_title |
Annals of Geophysics |
container_volume |
57 |
_version_ |
1796311651373285376 |