Fawzi Doumaz
Istituto Nazionale di Geofisica e Vulcanologia, Centro Nazionale Terremoti, Department Member
- Fawzi Doumaz was born in Algeria, graduated in Engineering geology, began in 1992 as a full time researcher at the Ce... moreFawzi Doumaz was born in Algeria, graduated in Engineering geology, began in 1992 as a full time researcher at the Centre for Research in Astronomy Astrophysics and Geophysics Algiers (CRAAG) within a team working on seismotectonic and paleoseismology. His early works were interested in the seismic zone of El Asnam (Algeria) theatre of a violent earthquake in 1980. In 1996 he moved to Italy to work on high-resolution digital terrain models for geomorphological and seismotectonic studies. From this work and thanks to using GIS tools and computers he shifted to an IT activity and software development in GIS environment (ESRI), creation of database, Geodatabase and full-web applications.
Researcher at the Centro Nazionale Terremoti of INGV, he is working on the development of new procedures and software for monitoring seismic and volcanic activity in real time.
His mains expertise are:
• Development of software in a GIS environment for the visualization of seismicity in real time SISMAP
• Creation of hardware infrastructures for centralized management of geospatial data (thematic and specialized geographic data) GeoServer
• Design and development of WebGIS for interactive navigation and distribution of scientific data.
• Development of mapping software fore mobile devices to disseminate near real tim synchronized information.
• Development of software for synchronized multi-discplinari data acquisition, for volcanological survey.
• Development of geophysical data acquisition software in Antarctic environments
He has been member of 3 Antarctic expeditions for scientific research and software design and implementation. He is responsible for the development of the Database of Italian Volcanoes Prototype and of a Web interface for an early warning alert for Stromboli volcano (Paroxysm project).
GENERAL SKILL:
GIS, remote sensing, Geodatabase, Database, Development in Dot.net (Asp, VB, C #), and other language for the Web. ArcGIS Desktop, ArcGIS Server, ArcSDE, ArcObjects
Language: Arabic, French, Italian, English.edit
We investigate the surface displacement along the 36-km-long and NE trending El-Asnam thrust fault (NW Alge-ria) responsible of two large earthquakes (Ms 6.7 in 1954 and Ms 7.3 in 1980) using Stamps/MTI advanced time series analysis of... more
We investigate the surface displacement along the 36-km-long and NE trending El-Asnam thrust fault (NW Alge-ria) responsible of two large earthquakes (Ms 6.7 in 1954 and Ms 7.3 in 1980) using Stamps/MTI advanced time series analysis of ERS SAR images acquired between 1997 and 2000. Previous leveling measurements of geodetic benchmarks conducted from 1986 to 1991 show 5.1 ± 1.9 mm/yr and 9.6 ± 1.4 mm/yr postseismic uplift rate of the northwestern block. The processed 9 SAR images (ERS1 and ERS2) are based on the combination of PS-SB using Stamps, the 3-arc/sec SRTM topographic data, and filtering in order to remove atmospheric artifacts and control the Doppler centroid difference.The semi-arid landscape of the El Asnam (nowadays Chlef) region provides favorable image coherency for interferometric SAR processing. The application of Persistent Scatterer InSAR (PS) and Small baseline (SB) approaches reveals significant surface changes across the fault zone. The earthquake fault area limits two distinct zones, with LOS values reaching 30.4 mm cumulative displacement corresponding to 16.2 mm(uplift) on the hanging block and-14.2 mm (subsidence) on the footwall block.We then extract the vertical and horizontal components (uplift and NNW-SSE shortening) from the LOS and obtain 0.6 mm/yr and 0.4 mm/yr, respectively. The elastic modeling on the homogeneous 1980 fault rupture illustrates the crustal deformation at depth. The cumulative postseismic and perhaps comparable interseismic deformation across this tectonic boundary may explain the frequent earthquake occurrence in this region. The InSAR Time Series analysis also shows LOS displacement on other parallel active faults (Bou Kadir fault and Tenes fault) NNW of the El Asnam fault. The inferred total rate of shortening across these faults and the Tell Atlas of Algeria reflects the level of active deformation along this section of the plate boundary in North Africa.
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The application of Remote Sensing techniques to the study of volcanic areas includes the possibility to generate high resolution Digital Elevation Models (DEMs) almost in real time during eruptive crisis. The use of EROS spaceborne sensor... more
The application of Remote Sensing techniques to the study of volcanic areas includes the possibility to generate high resolution Digital Elevation Models (DEMs) almost in real time during eruptive crisis. The use of EROS spaceborne sensor allows the acquirement of two overlapped images of the same scene (13x13 km, 2.5 m of resolu-tion)) at different viewing angles during the same pass on Mount Etna. Using specific photogrammetric softwares it is possible to retrieve a very accurate DEM using a cer-tain number of Ground Control Points (GCPs) collected from within the border of the images, and at the high and low elevation points to avoid planimetric and eleva-tion extrapolations. A high resolution DEM is peculiar for the creation of 3D detailed viewing of the volcano. In particular during an eruptive event it is possible to analyse the modifications in volcano morphology and to perform geometric calculations such as an approximate estimation of the volume of the erupted material. A f...
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On July 17th and 18th 2001 several fractures opened on the southern flank of Mt. Etna origining different lava flows spreading both in Valle del Bove and towards Nicolosi town. On July 29th an airborne campaign equipped with an image... more
On July 17th and 18th 2001 several fractures opened on the southern flank of Mt. Etna origining different lava flows spreading both in Valle del Bove and towards Nicolosi town. On July 29th an airborne campaign equipped with an image spectrometer was performed over Mt. Etna to acquire image data of the eruption. The campaign was organized to permit a
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The INGV Remote Sensing unit is equipped with a NOAA-AVHRR receiving station that provides 4 to 10 images per day of the central Mediterranean area in the visible to thermal infrared bands. These data were acquired and processed in real... more
The INGV Remote Sensing unit is equipped with a NOAA-AVHRR receiving station that provides 4 to 10 images per day of the central Mediterranean area in the visible to thermal infrared bands. These data were acquired and processed in real time using automatic and semi-automatic procedures which outputs information collated in daily and weekly observation reports and outputs overview images
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The availability of EO satellites in the last decades has offered the possibility to integrate the ground surveillance with satellite derived information increasing the knowledge of territory situation and phenomena characteristics during... more
The availability of EO satellites in the last decades has offered the possibility to integrate the ground surveillance with satellite derived information increasing the knowledge of territory situation and phenomena characteristics during natural disasters. All member states of the ...
Research Interests: Crisis Management, European Union, User Interface, Risk Management, Web GIS, and 13 moreProceedings, Earth Observation, Damage Assessment, Natural disaster, Thematic Maps, Information Service, Natural hazard, Satellite Data, Natural Phenomena, European regions, Volcanic Eruption, Database System, and Member States
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The Acque Albule travertine basin is located in the Lazio region, Central Italy, on the margin of the Tyrrhenian sea. Geologically the basin has been interpreted as a pull-apart tectonic system driven by right strike-slip faults N-S... more
The Acque Albule travertine basin is located in the Lazio region, Central Italy, on the margin of the Tyrrhenian sea. Geologically the basin has been interpreted as a pull-apart tectonic system driven by right strike-slip faults N-S trending that gave origin to subsidence zones bordered by normal faults. Sinkholes phenomena affecting this area have been reported since the beginning of
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In order to calibrate and validate remote sensing data, information derived from laboratory and in situ measurements are needed. Periodically campaigns are organized to perform measurements and samplings to retrieve spectral and... more
In order to calibrate and validate remote sensing data, information derived from laboratory and in situ measurements are needed. Periodically campaigns are organized to perform measurements and samplings to retrieve spectral and geochemical information. Information are very important to improve the theoretical model and to realize a classification. During 16-22 September 2007 a field campaign was performed on Mt. Teide
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Research Interests: Remote Sensing, Methodology, Digital Elevation Models, Strategy, Topography, and 13 moreRecovery, DEM, Geomatic Engineering, Lava Flows, Atmospheric Correction, Digital Elevation Model, RADIANCE, Radiative Transfer, Altitude, Remote Sensing (Hyperspectral and Multispectral), Thermal Infrared, Infrared Rays, and Atmospheric Effects
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The 10-m-resolution TINITALY/01 DEM (Tarquini et al., 2007) is compared with the two, coarserresolution, global-coverage, spaceborne-based SRTM and ASTER DEMs and with a high-resolution, LIDAR-derived DEM. Afterwards, we presented a... more
The 10-m-resolution TINITALY/01 DEM (Tarquini et al., 2007) is compared with the two, coarserresolution, global-coverage, spaceborne-based SRTM and ASTER DEMs and with a high-resolution, LIDAR-derived DEM. Afterwards, we presented a webGIS which allows to explore a 10-m-resolution anaglyph layer showing the landforms of the whole Italian territory in 3D. The webGIS (http://tinitaly. pi.ingv.it/) is open to the public, and can be used to carry out a preliminary analysis of landforms. The TINITALY/01 DEM is available for scientific purposes on the basis of a research agreement (see the above website or write to tinitaly@pi.ingv.it).
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ABSTRACT
Abstract Following the 1997 Umbria-Marchean seismic sequence geodetic, GPS and SAR in-terpherometry measurements were performed. The results of these analysis put in ev-idence the surface deformation pattern of Colfiorito area which was... more
Abstract Following the 1997 Umbria-Marchean seismic sequence geodetic, GPS and SAR in-terpherometry measurements were performed. The results of these analysis put in ev-idence the surface deformation pattern of Colfiorito area which was interested by the main seismic events. This area is represented by a system of Quaternary intramoun-tain basins characterized by internal drainage, filled by fluvio-lacustrine sediments and bounded by NNW trending normal faults showing controversial evidence of recent ac-tivity. The study ...
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During the last ten years, with the extension of local and regional geophysical monitoring networks and the development of new scientific projects, INGV has experienced a significant growing of its data patrimony in terms of quantity and... more
During the last ten years, with the extension of local and regional geophysical monitoring networks and the development of new scientific projects, INGV has experienced a significant growing of its data patrimony in terms of quantity and variety. Financial and human resources have ...
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Segreteria di Redazione Francesca Di Stefano - coordinatore Tel. +39 06 51860068 Fax +39 06 36915617 Rossella Celi Tel. +39 06 51860055 Fax +39 06 36915617 ... DELL'INGV ALL'ESERCITAZIONE DELLA PROTEZIONE CIVILE ... Milena... more
Segreteria di Redazione Francesca Di Stefano - coordinatore Tel. +39 06 51860068 Fax +39 06 36915617 Rossella Celi Tel. +39 06 51860055 Fax +39 06 36915617 ... DELL'INGV ALL'ESERCITAZIONE DELLA PROTEZIONE CIVILE ... Milena Moretti1, Aladino ...