The 1511 Eastern Alps earthquakes: a critical update and comparison of existing macroseismic datasets     

Romano Camassi  Carlos Hector Caracciolo  Viviana Castelli  Dario Slejko 《Journal of Seismology》2011,15(2):191-213

Three earthquakes condition the seismic hazard estimates of the Eastern Alps: the 1348 “Villach”, the 1511 “Idrija”, and the 1976 Gemona events. Only the last one can be well documented, while doubts remain for location and size of the other two. New documents have been found about the 1511 quake that, together with a complete revision of the information already available, offer some new indications on the location and size of the event.  相似文献   

Book review     

Dario Camuffo 《Climatic change》1995,29(3):359-361

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Continuous monitoring of distal gas emanations at Vulcano,southern Italy   总被引：1，自引：0，他引：1  

Jean-Paul Toutain  Jean-Claude Baubron  Joseph Le Bronec  Patrick Allard  Pierre Briole  Bernard Marty  Gerarda Miele  Dario Tedesco  Giuseppe Luongo 《Bulletin of Volcanology》1992,54(2):147-155

The increasing activity of Vulcano Island (Italy) since 1985 led to the initiation of continuous geochemical monitoring of the lateral soil gas emissions. On the basis both of their relative geochemical characteristics and of local considerations, three gaseous components were selected for monitoring, namely CO₂, He and ²²²Rn. Monitoring has been performed by means of specific analysers. Gases extracted from a water well located at the foot of the active cone were selected for monitoring, on the basis of their geochemical and isotopic characters that indicate their genetic link with central high temperature fumarolic gases emitted at the crater. Very strong variations of gas composition can be observed within one day (from 1 to about 94% for CO₂). Some variations display a daily character and can be correlated with that of atmospheric pressure. The three monitored gases are highly correlated, suggesting very high kinetics of gas transfer in the system. Because of these considerable variations of chemical composition, bulk concentrations obviously are not suitable for monitoring at Vulcano. However, the evolution with time of ratios such as ²²²Rn/CO₂ and He/CO₂ (the latter being corrected for atmospheric contamination) supplies numerical parameters that the expected to characterize the intensity of the degassing process. A new input of magmatic gases, that would lead to an increase in the ²²²Rn/CO₂ and He/CO₂ ratios, should therefore be detected by such a monitoring station.  相似文献   

Some aspects of seismic hazard assessment when comparing different approaches     

Laura Peruzza  Dario Slejko 《Natural Hazards》1993,7(2):133-153

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A critical analysis of one standard and five methods to monitor surface wetness and time-of-wetness     

Camuffo  Dario  della Valle  Antonio  Becherini  Francesca 《Theoretical and Applied Climatology》2018,132(3-4):1143-1151

Theoretical and Applied Climatology - Surface wetness is a synergistic factor to determine atmospheric corrosion, monument weathering, mould growth, sick buildings, etc. However, its detection and...  相似文献   

Surface velocity fields of active rock glaciers and ice-debris complexes in the Central Andes of Argentina     

Jan Henrik Blöthe  Christian Halla  Ellen Schwalbe  Estefania Bottegal  Dario Trombotto Liaudat  Lothar Schrott 《地球表面变化过程与地形》2021,46(2):504-522

Rock glaciers and transitional ice-debris complexes predominate the Central Andean landform assemblage, yet regional studies on their state of activity and their kinematics remain sparse. Here we utilize the national glacier inventory of Argentina to quantify surface velocity fields of 244 rock glaciers and 51 ice-debris complexes, located in the Cordón del Plata range, Argentina. Applying a feature-tracking approach to repeated RapidEye satellite imagery acquired between 2010 and 2017/18, we find mean displacement rates between 0.37 and 2.61 m year⁻¹ for 149 landforms, while for the remaining 146 features, surface movement remains below our level of detection. We compare our satellite-derived velocity fields with ground-truth data from two local field sites and find closely matching results in magnitude and spatial distribution. With average displacement of one-third of the active rock glaciers and ice-debris complexes exceeding 1 m year⁻¹, the region hosts an exceptional number of fast-flowing periglacial landforms, compared to other mountain belts. Using a random forest model, we test the predictive power of 25 morphometric and topoclimatic candidate predictors for modelling the state of activity of rock glaciers and ice-debris complexes on two different scales. For entire landforms and individual landform segments, constructed along displacement centrelines, we can predict the state of activity with overall accuracies of 70.08% (mean AUROC = 0.785) and 74.86% (mean AUROC = 0.753), respectively. While topoclimatic parameters such as solar radiation and elevation are most important for entire landforms, geometric parameters become more important at the scale of landform segments. Despite tentative correlations between local slope and surface kinematics, our results point to factors integrating slope and distance to the source to govern local deformation. We conclude that feature tracking in optical imagery is feasible for regional studies in remote regions and provides valuable insight into the current state of the Andean cryosphere. © 2020 The Authors. Earth Surface Processes and Landforms published by John Wiley & Sons Ltd  相似文献   

A summer temperature bias in early alcohol thermometers     

Dario Camuffo  Antonio della Valle 《Climatic change》2016,138(3-4):633-640

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Tree-ring reconstructed May–June precipitation in the Caucasus since 1752 CE     

Dario Martin-Benito  Caroline C. Ummenhofer  Nesibe Köse  Hüseyin Tuncay Güner  Neil Pederson 《Climate Dynamics》2016,47(9-10):3011-3027

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Correction: Geostatistical Rock Physics Inversion for Predicting the Spatial Distribution of Porosity and Saturation in the Critical Zone     

Grana  Dario  Parsekian  Andrew D.  Flinchum  Brady A.  Callahan  Russell P.  Smeltz  Natalie Y.  Li  Ang  Hayes  Jorden L.  Carr  Brad J.  Singha  Kamini  Riebe  Clifford S.  Holbrook  W. Steven 《Mathematical Geosciences》2022,54(8):1347-1347

Mathematical Geosciences -  相似文献   

Approximate dynamic model of embedded foundation in time domain     

John P. Wolf  Dario R. Somaini 《地震工程与结构动力学》1986,14(5):683-703

A discrete model to represent the unbounded soil (halfspace) in a soil–structure interaction analysis in the time domain is developed. For each dynamic degree of freedom of the foundation node, the discrete model consists of a mass M₀ which is attached to a rigid support with a spring K and with a damper C₀. In addition, a free node with the mass M₁ is introduced, which is connected to the foundation node with a damper C₁. All coefficients are frequency-independent. The discrete model is semi-empirical. It is based on a semi-infinite truncated cone, whereby, after enforcing the static stiffness, the remaining parameters are modified to achieve an optimal fit of the dynamic-stiffness coefficient in the frequency domain. The spring K is equal to the static stiffness. The coefficients appearing in the equations for the dampers C₀, C₁ and the masses M₀, M₁ are specified (assuming a homogeneous halfspace) for the disc, the embedded cylinder, the rectangle (also embedded) and the strip. A square on a layer whose stiffness increases with depth resting on a homogeneous halfspace is also treated. For an embedded foundation, eccentricities arise. Material damping increases the damper C₀ and the mass M₀.  相似文献