2008 Second Workshop on Use of Remote Sensing Techniques for Monitoring Volcanoes and Seismogenic Areas最新文献

{"title":"Managing volcanic unrest: The mobile volcano fast response system","authors":"M. Hort, K. Zakšek","doi":"10.1109/USEREST.2008.4740358","DOIUrl":"https://doi.org/10.1109/USEREST.2008.4740358","url":null,"abstract":"A mobile volcano fast response system (VFRS) that can be deployed on a volcano in case of volcanic unrest is currently under development in Germany. The main goal of the project called Exupery, which is funded by the BMBF (German ministry for the education and research) project Geotech-nologien, is to develop the core of a mobile volcano fast response system, i.e. providing the communication technology for stations in the field and an expert system that collects all data from various sources, assembles them in a data base, and allows different modules to assess the data and model and project the activity status of the volcano. Important novelties of the proposed mobile system are the direct inclusion of the remote sensing data into VFRS and the wireless communication mesh node based system that enables communication among field instruments and a single data base collecting data from different sources.","PeriodicalId":107318,"journal":{"name":"2008 Second Workshop on Use of Remote Sensing Techniques for Monitoring Volcanoes and Seismogenic Areas","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122113527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"GlobVolcano project overview","authors":"S. Borgstrom, F. Seifert, L. Tampellini, R. Ratti","doi":"10.1109/USEREST.2008.4740334","DOIUrl":"https://doi.org/10.1109/USEREST.2008.4740334","url":null,"abstract":"The GlobVolcano project is part of the ESA DUE programme. The project aims at demonstrating EO-based services to support the Volcanological Observatories and other mandate users (e.g. Civil Protection authorities, scientific communities of volcanoes) in their monitoring activities. During the project a worldwide selection of user organizations will cooperate with the GlobVolcano team in order to harmonize user's requirements and to evaluate the EO-based services . The \"Osservatorio Vesuviano\" of Naples (INGV-Italy) coordinates the communications between the project and the User Community. IPGP of Paris is responsible for the scientific coordination and the validation activities. The project activities are split in two phases. During the first phase (completed in June 2008) the service infrastructure and interface to the users have been developed. Prototype EO-based information products have been generated and validated. Service provision on pre-operational basis will take place during the second phase.","PeriodicalId":107318,"journal":{"name":"2008 Second Workshop on Use of Remote Sensing Techniques for Monitoring Volcanoes and Seismogenic Areas","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114219418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ASI-SRV optical sensor data processing modules","authors":"M. Musacchio, M. Silvestri, C. Spinetti, S. Corradini, V. Lombardo, L. Merucci, F. Buongiorno, S. Perelli, V. Santacesaria, S. Pugnaghi, G. Gangale, L. Guerrieri, S. Teggi","doi":"10.1109/USEREST.2008.4740366","DOIUrl":"https://doi.org/10.1109/USEREST.2008.4740366","url":null,"abstract":"The Project called Sistema Rischio Vulcanico (SRV) is funded by the Italian Space Agency (ASI) in the frame of the National Space Plan 2003-2005 under the Earth Observations section for natural risks management. The SRV Project is coordinated by the Istituto Nazionale di Geofisica e Vulcanologia (INGV) which is responsible at national level for the volcanic monitoring. The main goal of the SRV project is to define, develop and demonstrate tools and products, based on the EO data, to support the risk management decision procedures. This is achieved through the development of data processing modules dedicated to the generation of specific products and to the dissemination of the information to the end-users in a form suitable for decision making. An important step of the project development regards the technical and scientific feasibility of the provided products.","PeriodicalId":107318,"journal":{"name":"2008 Second Workshop on Use of Remote Sensing Techniques for Monitoring Volcanoes and Seismogenic Areas","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128071325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Systematic InSAR monitoring of African active volcanic zones: What we have learned in three years, or an harvest beyond our expectations","authors":"N. d'Oreye, J. Fernández, P. González, F. Kervyn, C. Wauthier, C. Frischknecht, É. Calais, S. Heleno, V. Cayol, A. Oyen, P. Marinkovic","doi":"10.1109/USEREST.2008.4740361","DOIUrl":"https://doi.org/10.1109/USEREST.2008.4740361","url":null,"abstract":"We present here a brief overview of some findings and preliminary results obtained after almost three years of systematic monitoring of active volcanic areas in Africa by means of differential synthetic aperture radar interferometry (InSAR). With a database rich of more than 400 SAR scenes of Fogo (Cape Verde), Ol Doinyo Lengai (Tanzania), Nyiragongo-Nyamulagira (DR of Congo) and Mount Cameroon volcanoes, we processed more than 2000 interferograms among which we could detect significant and major geophysical processes: the first dyking event ever captured geodetically in a continental rift (Lake Natron; Northern Tanzania), the co-eruptive deformations of the Lengai, Nyiragongo and Nyamulagira volcanoes, the co-seismic displacements associated to the mb 6.1 February 3rd 2008 Bukavu earthquake as well as the identification of atmospheric induced phase delays over Fogo and Mount Cameroon volcanoes to be attributed to the seasonal oscillations of the inter-tropical convergence zone (ITCZ). These results have been reached given the abundance of data that increases the chances to capture unpredictable events, and capture them with the most favorable interferometric conditions as possible (e.g. in terms of geometrical and temporal baselines that minimized the vegetation-induced decorrelation). They provided strong scientific material as well as tools for hazard assessment.","PeriodicalId":107318,"journal":{"name":"2008 Second Workshop on Use of Remote Sensing Techniques for Monitoring Volcanoes and Seismogenic Areas","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132230023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Monitoring landscape response to tectonic forcings in Central Badakhshan-Hindukush-Pamir region using remote sensing data","authors":"S. A. Mahmood, F. Shahazd, R. Gloaguen","doi":"10.1109/USEREST.2008.4740341","DOIUrl":"https://doi.org/10.1109/USEREST.2008.4740341","url":null,"abstract":"This study deals with the remote sensing analysis of landscape response to tectonic forcings and its implications to understand the regional uplift conditions along the Shiveh River and Shiveh Lake in Central Badakhshan-Hindukush-Pamir region. Quantitative remote and field assessments of process-based laws are needed to accurately describe landscape uplift and denudation with respect to tectonics and climate.We evaluate and calibrate stream power bedrock-incision model under steady state conditions by studying stream profiles in a tectonically active Central Badakhshan region. Previous work in Pyanj region along Tajikistan-Afghanistan boarder and along Yarkun-Chitral region provides spatial and temporal control on rock-uplift rates. SRTM Digital elevation models (DEMs) are used to estimate differences in landscape morphology associated with along-strike northwest to southeast changes in tectonic and climatic conditions. Data is acquired in different stages; first, River longitudinal profiles, stream wise distance, elevation, and drainage area are generated from DEMs. Second, power-law regressions of channel slope as a function of drainage area are used to derive channel concavity and steepness indices. Slope-area data can be generated in a variety of ways, and several methods have been critically evaluated. An uplift rate map of the area has been prepared for further analysis of the drainage network. Siesmotectonic map of the area is also prepared by using seismological data compiled from various resources. The seismicity in this region shows a distinct pattern. Moment tensor solutions show strike-slip components with thrust dominance. The stream profile data can be used to delineate breaks in scaling that are related with the tectonic boundaries. Analysis of stream profiles supports the hypothesis that the study-area channels are in equilibrium with current uplift and climatic conditions. Channel steepness correlates with uplift rate. The uplift rate map shows variable differential uplift rates in this region and it is due to the ongoing complex faulting processes due to India-Eurasia collision. The quaternary faults in the region control local drainage and the deflection of rivers and stream channels is a further evidence of the recent fault activity. Mapping of some quaternary faults on Landsat data also confirms the change in style of deformation in this region.","PeriodicalId":107318,"journal":{"name":"2008 Second Workshop on Use of Remote Sensing Techniques for Monitoring Volcanoes and Seismogenic Areas","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134321725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"DInSAR, GPS and gravity observation results in La Palma, Canary islands","authors":"J. Fernández, P. Gonzalez, A. Camacho, G. Rodríguez-Velasco, A. Arjona, J. Pallero, J. Prieto, P. Perlock, K. Tiampo, A. Seco, A. Aparicio, J. Rundle","doi":"10.1109/USEREST.2008.4740345","DOIUrl":"https://doi.org/10.1109/USEREST.2008.4740345","url":null,"abstract":"We review several results from geodetic observations carried out in La Palma Island during the period 1992-2007. A gravity survey was done for structural studies, and InSAR and GPS observations techniques were applied to study the existence of deformation areas in the Island. Gravity anomalies have been inverted using a non-linear three-dimensional gravity inversion approach to obtain the geometry of the anomalous bodies. The main structural feature is a large high density body interpreted as a dense intrusive plutonic body and the pliocene-age uplifted seamount. An elongated minimum is detected below the Cumbre Vieja according to the rift structure. InSAR results show two areas of subsidence, a mild long wavelength signal on the western part of Cumbre Vieja and clear subsidence located on the Teneguia volcano where the last eruption took place in 1971. A GPS network composed by 26 stations covering the island has been defined. Vertical displacements determined by comparing the GPS coordinates obtained in 2007 and in 1994 are consistent with the InSAR results. From the comparison of 2006 and 2007 coordinates we conclude that more time span is needed to obtain clearly significant displacements, but observed trends are also consistent with InSAR results. All the observed significant displacements are at stations located outside of the large high density central body.","PeriodicalId":107318,"journal":{"name":"2008 Second Workshop on Use of Remote Sensing Techniques for Monitoring Volcanoes and Seismogenic Areas","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131202189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Requirements for an L-band SAR-mission for global monitoring of tectonic activities","authors":"C. Minet, M. Eineder, R. Bamler, A. Friedrich, I. Hajnsek","doi":"10.1109/USEREST.2008.4740354","DOIUrl":"https://doi.org/10.1109/USEREST.2008.4740354","url":null,"abstract":"SAR interferometry is a well established technology for mapping tectonic activities from space. In this study a mission concept is investigated that provides a global monitoring capability of geo-tectonic threads. Due to the requirement of long-time interferometric coherence of the mapped surfaces an L-band system is proposed. Four scenarios are defined and the respective product requirements are given for each of them: tectonics/earthquakes, tectonics/volcanoes, landslides, and urban subsidence.","PeriodicalId":107318,"journal":{"name":"2008 Second Workshop on Use of Remote Sensing Techniques for Monitoring Volcanoes and Seismogenic Areas","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132912539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Eruptive cycles inferred from ground deformation at Piton de La Fournaise - a case study for the Globvolcano project","authors":"A. Peltier, É. Kaminski, J. Komorowski","doi":"10.1109/USEREST.2008.4740363","DOIUrl":"https://doi.org/10.1109/USEREST.2008.4740363","url":null,"abstract":"Due to its high eruptive activity, Piton de La Fournaise is an ideal case study to follow ground deformation associated with eruptive activity. Ground deformation is monitored in the field by the Volcanological Observatory of Piton de La Fournaise. GPS data reveal the presence of two time scales of ground deformation: (1) large short-term displacements (up to 20×103 mm d-1 ) monitored a few min to hours prior each eruption (2) and since 2000, small long-term ground displacements recorded during pre-eruptive unrests (0.4-0.7 mm d-1 of summit inflation) and after major distal eruptions (0.3-1.3 mm d-1 of summit deflation). The large GPS dataset available to follow the eruptive cycles is particularly useful to validate the remote sensing data as shown by the Globvolcano project. The good correlation between GPS and PSInSAR data recorded during pre-eruptive unrest periods allowed us to validate the ground deformation mapping using PSInSAR data at Piton de La Fournaise. The combination of PSInSar and GPS data, in the future, will give us complementary data to investigate the ground deformation associated with eruptive cycles on a larger space scale and thus better constrain the deformation sources.","PeriodicalId":107318,"journal":{"name":"2008 Second Workshop on Use of Remote Sensing Techniques for Monitoring Volcanoes and Seismogenic Areas","volume":"189 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123212248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preliminary results of lava flow mapping using remote sensing in Piton de la Fournaise, La Réunion island","authors":"S. Zarah, V. Nicolas, U. Minoru, S. Thomas, G. Astrid","doi":"10.1109/USEREST.2008.4740339","DOIUrl":"https://doi.org/10.1109/USEREST.2008.4740339","url":null,"abstract":"The use of remote sensing is more and more incontrovertible in volcanic monitoring, especially in INSAR and thermal studies. A comprehensive database of high-resolution multispectral and multitemporal optical satellite imagery exists for Piton de la Fournaise, the active volcano on La Reunion Island. This database, however, remains relatively underexploited in volcanological studies of Piton de la Fournaise. Using a large image data set including SPOT 5 and 4, ASTER and aerial photography, we performed cartography of recent lava flows. Different methods were applied for each sensor in order to extract and map lava flow contours and surface morphology. These methods include photo interpretation as well as fusion of thermal band and optical images. In addition we performed several tests with specific software combining object and spectral based techniques. Subsequently, a simple statistical comparison between different perimeters and areas mapped allowed us to determine a precision ratio. Results show that difficulties in extracting contours arise when the study area is a complex lava flow field where the different lava flows overlap, or have a similar textural and radiometric characteristics.","PeriodicalId":107318,"journal":{"name":"2008 Second Workshop on Use of Remote Sensing Techniques for Monitoring Volcanoes and Seismogenic Areas","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123388435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hot spot detection and effusion rate estimation using satellite data to drive lava flow simulations","authors":"A. Vicari, G. Ganci, A. Ciraudo, A. Hérault, I. Corviello, T. Lacava, F. Marchese, C. Del Negro, N. Pergola, V. Tramutoli","doi":"10.1109/USEREST.2008.4740347","DOIUrl":"https://doi.org/10.1109/USEREST.2008.4740347","url":null,"abstract":"We demonstrated how infrared satellite data can be used to drive numerical simulations of lava flow paths and produced a detailed chronology of lava flow emplacement while an eruptive event was ongoing. We evaluated the lava flow hazard on Etna volcano during the first 40 days of May 2008 eruption by means of the MAGFLOW cellular automata model. This model was developed for simulating lava flow paths and the temporal evolution of lava emplacement. Many data are necessary to run MAGFLOW and to determine how far lava will flow. However, for a given composition, the volumetric flux of lava from the vent (i.e. the lava effusion rate) is the principal parameter controlling final flow dimensions. Measuring effusion rates is therefore of great interest. To this end, we developed an automatic system that uses near-real-time infrared satellite data to estimate the lava effusion rates. Such system exploits the satellite data directly received and automatically processed by RST approach at CNR-IMAA, as input information for the prediction of the path lava flows. In particular, hotspots detected by RST, using both AVHRR and MODIS data, have been used to compute time-varying effusion rates, which have been applied to drive lava flow simulation using the original MAGFLOW cellular automata algorithm. Achieved results confirm the reliability of two methodologies (i.e. RST approach and MAGFLOW model), as well as the potential of the whole integrated processing chain, as an effective tool for real-time monitoring and mitigation of volcanic hazard.","PeriodicalId":107318,"journal":{"name":"2008 Second Workshop on Use of Remote Sensing Techniques for Monitoring Volcanoes and Seismogenic Areas","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130843239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}