Rapid Updating and Improvement of Airborne LIDAR DEMs Through Ground-Based SfM 3-D Modeling of Volcanic Features

Kolzenburg, Stephan; Favalli, Massimiliano; Isola, Ilaria; Harris, Andrew; Nannipieri, Luca; Giordano, Daniele

doi:10.1109/tgrs.2016.2587798

Cited by 23 publications

(15 citation statements)

References 46 publications

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“…Therefore, the variations of the flow behavior of crys− tallizing basalts are controlled by variations in the vol− umetric fractions of crystals and bubbles. These data also reflect the measurement limits of the respective methods that are described in more detail in Kolzenburg et al [2016a]. Concentric cylinder suspension viscometry for these Etnean lavas is confined to <10 4 Pa s and shows that the measured viscosities at constant temperature (i.e.…”

Section: Non-isothermal Cooling-rate and Strain-rate Dependent Rheolosupporting

confidence: 67%

Advances in the rheology of natural multiphase silicate melts: Import for magma transport and lava flow emplacement

Giordano

2019

Annals of Geophysics

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A review of recent advances in the field of rheology of multicomponent silicate melts and multiphase silicate melt and multiphase silicate melt and analogue material suspensions is presented. is presented here. The advances include the development of new experimental de− vices and field and remote sensing methods for measuring the rheological properties of natural melts and magmas as well as new mod− elling strategies. These promising approaches combine laboratory experiments, theoretical models, numerical simulations and remote sens− ing data derived from ground, airborne and satellite−based tools. Each of these sub−disciplines has evolved rapidly in recent years and the growing range of complementary data appears now to provide an opportunity for the development of multi−disciplinary research. Ul− timately, these multidisciplinary initiatives seek to provide near−real−time forecasting of hazardous volcanic processes such as lava flow field evolution. The results and approaches described here focus on multiphase (i.e. melts, bubbles, crystals) rheology of natural systems and are pertinent to the effusive emplacement of lavas, dykes and sills, as well as, to the eruption dynamics attending explosive eruptions.

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Section: Non-isothermal Cooling-rate and Strain-rate Dependent Rheolosupporting

confidence: 67%

Advances in the rheology of natural multiphase silicate melts: Import for magma transport and lava flow emplacement

Giordano

2019

Annals of Geophysics

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“…The 2012 and 2017 topographic data were here co-registered by minimizing the root mean square (RMS) error between two DEMs. The methods used iteratively vary the three angles of rotation, the translation, and the magnification or reduction factor of one DEM using a custom-made algorithm based on the MINUIT minimization library [43], as described by [44][45][46]. MINUIT is a tool to find the minimum value of multi-parameter functions and can be freely downloaded (http://www.cern.ch/minuit).…”

Section: Topographic Data and Co-registrationmentioning

confidence: 99%

The 2014 Effusive Eruption at Stromboli: New Insights from In Situ and Remote-Sensing Measurements

et al. 2018

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In situ and remote-sensing measurements have been used to characterize the run-up phase and the phenomena that occurred during the August–November 2014 flank eruption at Stromboli. Data comprise videos recorded by the visible and infrared camera network, ground displacement recorded by the permanent-sited Ku-band, Ground-Based Interferometric Synthetic Aperture Radar (GBInSAR) device, seismic signals (band 0.02–10 Hz), and high-resolution Digital Elevation Models (DEMs) reconstructed based on Light Detection and Ranging (LiDAR) data and tri-stereo PLEIADES-1 imagery. This work highlights the importance of considering data from in situ sensors and remote-sensing platforms in monitoring active volcanoes. Comparison of data from live-cams, tremor amplitude, localization of Very-Long-Period (VLP) source and amplitude of explosion quakes, and ground displacements recorded by GBInSAR in the crater terrace provide information about the eruptive activity, nowcasting the shift in eruptive style of explosive to effusive. At the same time, the landslide activity during the run-up and onset phases could be forecasted and tracked using the integration of data from the GBInSAR and the seismic landslide index. Finally, the use of airborne and space-borne DEMs permitted the detection of topographic changes induced by the eruptive activity, allowing for the estimation of a total volume of 3.07 ± 0.37 × 106 m3 of the 2014 lava flow field emplaced on the steep Sciara del Fuoco slope.

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“…Mitigating the hazards posed by lava flows that threaten infras− tructure has only shown moderate success to date [Bar− beri et al, 2003]. This is largely due to an incomplete understanding of how lava flows, how and when flows stop and is further hampered by a lack of methods to provide up−to−date topographic surface models [Cash− man et al, 2013;Farquharson et al, 2015;Favalli et al, 2010;James and Robson, 2014;Kolzenburg et al, 2016a;Kolzenburg et al, 2018c]. These shortfalls drastically re− duce our ability to predict lava flow emplacement.…”

Section: Motivation and Scope Of This Studymentioning

confidence: 99%

Equilibrium Viscosity and Disequilibrium Rheology of a high Magnesium Basalt from Piton De La Fournaise volcano, La Reunion, Indian Ocean, France

Kolzenburg¹,

Giordano²,

Muro³

et al. 2018

Annals of Geophysics

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Lava flows are a common hazard at basaltic to intermediate volcanoes and have posed a significant threat to La Reunion Island over the past centuries. In sustained flow units, the efficiency of lava transport away from the vent is dominated by cooling. For basaltic to inter− mediate lavas, it is the ability of the lava to solidify during cooling which exerts a first−order control on spatial extent and flow distance. As a consequence, understanding the sub−liquidus rheology of lavas has become a key focus in lava flow research in the past decade. To date, the development of a systematic understanding of lava rheology during emplacement conditions has been significantly hampered by a lack of experimental data. Here we present new data on the rheological evolution of crystallizing high−Mg basalt from Piton de la Fournaise. Sub−liquidus experiments were performed at constant cooling rates ranging from 0.5 to 5 K/min. Those rates mimic thermal conditions experienced 1) by lava during flow on the surface and 2) by magma during dike and sill emplacement. Our data show that the effective viscosity of the crystallizing suspension increases until reaching a specific sub−liquidus temperature, the so−called "rheological cut−off temperature" (T cutoff), at which the lava becomes rheologically immobile and flow ceases. This departure from the pure liquid vis− cosity curve to higher viscosity is a consequence of rapid crystallization and its variability for a given lava is found to be primarily con− trolled by the imposed cooling rate. Based on these experimental data, we adapt the failure forecast method (FFM) − commonly used to describe the self−accelerating nature of seismic signals to forecast material failure − to predict the rheological cut−off temperature (T cutoff). The presented data substantially expand the modest experimental database on disequilibrium rheology of lavas and represent a step towards understanding the underlying process dynamics.

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Rapid Updating and Improvement of Airborne LIDAR DEMs Through Ground-Based SfM 3-D Modeling of Volcanic Features

Cited by 23 publications

References 46 publications

Advances in the rheology of natural multiphase silicate melts: Import for magma transport and lava flow emplacement

Advances in the rheology of natural multiphase silicate melts: Import for magma transport and lava flow emplacement

The 2014 Effusive Eruption at Stromboli: New Insights from In Situ and Remote-Sensing Measurements

Equilibrium Viscosity and Disequilibrium Rheology of a high Magnesium Basalt from Piton De La Fournaise volcano, La Reunion, Indian Ocean, France

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