Marco Bittelli

Marco Bittelli
University of Bologna | UNIBO · Agriculture and Food Sciences

PhD
www.marcobittelli.it

About

122
Publications
43,178
Reads
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3,544
Citations
Education
January 2002 - January 2003
Universität Heidelberg
Field of study
  • Post doctoral
August 1998 - December 2001
August 1996 - May 1998

Publications

Publications (122)
Article
Full-text available
Assessing hazard of rainfall-induced shallow landslides represents a challenge for the risk management of urbanized areas for which the setting up of early warning systems, based on the reconstruction of reliable rainfall thresholds and rainfall monitoring, is a solution more practicable than the delocalization of settlements and infrastructures. C...
Article
Laser diffraction analysis is a fast, reliable and automated method that provides detailed and highly resolved soil and sediment particle size distribution. In recent studies, the methods were compared against independent methods based on direct observation of particles by digital imaging. The data showed that laser diffraction results were in bett...
Article
Full-text available
Soil-atmosphere interaction has implications in different scientific research contexts and is increasingly investigated through field measurements. This paper reports a detailed description of interaction between shallow soil and atmosphere at two test sites in Oltrepò Pavese area (Northern Italy). The two test sites are in the same climatic area b...
Conference Paper
Full-text available
One of the major challenges in soil hydrological modelling is due to the fact that soils are heterogeneous at all spatial scales. The identification and accurate representation of such heterogeneity can be crucial for quantifying the subsurface hydrological states and water fluxes. This work presents the results of an integrated approach for proces...
Article
Full-text available
Soil water potential is a key factor to study water dynamics in soil and for estimating the occurrence of natural hazards, as landslides. This parameter can be measured in field or estimated through physically-based models, limited by the availability of effective input soil properties and preliminary calibrations. Data-driven models, based on mach...
Article
Time domain reflectometry can be applied to measure soil bulk density. Monitoring of bulk density over large areas for geo–statistical analysis requires a fast and effective method allowing for acquisition of many data points. Methods are available in the literature to obtain density from TDR. However, algorithms for simultaneous measurements of de...
Article
The pore‐solid interface and its characteristics play a key role in chemical interactions between minerals in the solid soil matrix and the liquid in pore space and, consequently, solute transport in soils. Specific surface area (SSA), typically measured to characterize the pore‐solid interface, depends not only on the particles size distribution,...
Article
This study is based on the analysis of detailed measurements of firn dielectric properties performed in Antarctica through coring down to 106 m. Dielectric measurements in the frequency band (0.4–2.5 GHz) have been carried out using an open−resonator probe. Density was also measured for the same samples. The experimental results confirmed the well−...
Preprint
Full-text available
The pore-solid interface and its characteristics play a key role in chemical interactions between minerals in the solid soil matrix and the liquid in pore space and, consequently, solute transport in soils. Specific surface area (SSA), typically measured to characterize the pore-solid interface, depends not only on the particles size distribution,...
Chapter
The case study of Tilmen Höyük is presented here to describe a combination of different integrated approaches. The site has been assessed from a climatic, topographical, pedological, hydrological, vegetational and vegetation management standpoint. This study provided a wealth of information that was used for acquiring a deeper understanding of the...
Article
River embankments stability is a key aspect in geohazard assessment and underestimating its failure risk may result in unexpected and severe damages. Changes in hydraulic and climatic boundary conditions are responsible for transient water flow within the embankments, consequently the related soil water content and pore-water pressure distributions...
Article
Full-text available
Rainfall thresholds define the conditions leading to the triggering of shallow landslides over wide areas. They can be empirical, which exploit past rainfall data and landslide inventories, or physicallybased, which integrate slope physical–hydrological modeling and stability analyses. In this work, a comparison between these two types of threshold...
Article
Full-text available
The identification of the triggering mechanism of rainfall-induced, shallow landslides requires a complete understanding of the hydro-mechanical response of soil, which can be represented through the trends of the degree of soil saturation. In this paper, multiple annual cycles of soil saturation obtained through field monitoring were used to valid...
Article
For many years papers have been published showing differences between sedimentation-based methods against laser diffraction. Differences were found especially in the fine texture ranges and regression equations were presented to convert data obtained between different methods. In this paper we aimed at understanding which method is closer to an ind...
Article
Full-text available
Soil water content is a key parameter for representing water dynamics in soils. Its prediction is fundamental for different practical applications, such as identifying shallow landslides triggering. Support vector machine (SVM) is a machine learning technique, which can be used to predict the temporal trend of a quantity since training from past da...
Article
Full-text available
Proximal soil sensors are taking hold in the understanding of soil hydrogeological processes involved in precision agriculture. In this context, permanently installed gamma ray spectroscopy stations represent one of the best space-time trade off methods at field scale. This study proved the feasibility and reliability of soil water content monitori...
Article
Full-text available
A proper assessment of the soil effective stress state is crucial in many cases to identify a potential geological/geotechnical hazard as shallow landslides or failure of levees that may have a significant impact on human activities and development. This paper is aimed at validating a methodology for the expeditious and economic determination of ef...
Article
Full-text available
In situ measurements of soil suction and water content in deep soil layers still represent an experimental challenge. Mostly developed within agriculture-related disciplines, field techniques for the identification of soil retention behaviour have been so far employed in the geotechnical context to monitor shallow landslides and seasonal volume cha...
Article
The decentralized production of electric energy from wind requires the installation of more and more underground power cables. From an economic standpoint it is very important to estimate the cables’ lifetime which strongly depends on the temperature. A correct estimation of cables’ temperature requires an accurate description of the heat balance e...
Book
Nonlinear Time Series Analysis with R provides a practical guide to emerging empirical techniques allowing practitioners to diagnose whether highly fluctuating and random appearing data are most likely driven by random or deterministic dynamic forces. It joins the chorus of voices recommending 'getting to know your data' as an essential preliminary...
Article
In this work, Soil Water Characteristic Curves (SWCCs) were reconstructed through simultaneous field measurements of soil pore water pressure and water content. The objective was to evaluate whether field-based monitoring can allow for the improvement of the accuracy in SWCCs estimation with respect to the use of laboratory techniques. Moreover, fi...
Conference Paper
Open image in new windowThis work presents the results of the continuous monitoring of two slopes of the Oltrepò Pavese (northern Apennines, north-western Italy), representative of different contexts usually affected by shallow landslides. The first monitored site is representative of high gradient slopes with silty soils. The second one represents...
Conference Paper
Full-text available
Le variazioni a carattere stagionale del contenuto d'acqua nei terreni coesivi determinano lo sviluppo di fenomeni di ritiro e rigonfiamento, a cui si associano deformazioni volumetriche e, conseguentemente, cedimenti e sollevamenti del piano campagna, che possono ripercuotersi sulle strutture in elevazione ed essere causa di danneggiamenti e fessu...
Article
Molecular dynamics (MD) is a modeling technique widely used in material science as well as in chemical physics, biochemistry and biophysics. MD is based on 'first principles', allowing one to compute the physical characteristics of a material, such as density, heat capacity, isothermal compressibility and also the dielectric constant and relaxation...
Article
Full-text available
The evaluation of riverbank stability is a fundamental problem in flood risk management, representing a critical task for engineering practice. Soil heterogeneity together with initial and boundary conditions are among the crucial issues that should be considered to obtain an accurate solution of the problem. Generally, attention and efforts are mo...
Article
Hilly slopes cultivated with vineyards are often affected by rainfall-induced shallow landslides that cause destruction and loss of the cultivations. For this reason, the assessment of mechanical contribution from grapevine roots is fundamental for slope stability analyses and consequently for the slope preservation. In this context, our work aims...
Chapter
Shallow landslides are frequent in steep wine-producing terrains, causing significant economical damage to cultivations and the loss of high productivity soils. In this work, the role of cultivated vineyards and abandoned vineyards to shallow landslides is investigated in northeastern Oltrepò Pavese. More than 40% of the vineyards were abandoned in...
Article
The narrow region of soil around roots, the so-called rhizosphere, defers in its hydraulic properties from the bulk soil. The rhizosphere hydraulic properties primarily depend on the drying and wetting rate of mucilage, a polymeric gel exuded by plant roots. Under equilibrium conditions mucilage increases the water holding capacity. Upon drying muc...
Conference Paper
Molecular Dynamics (MD) is a modeling technique widely used in material science as well as in chemical physics, biochemistry and biophysics. MD is based on "first principles", allowing for computation of the physical characteristics of a material, such as its density, heat capacity, isothermal compressibility and also dielectric constant and relaxa...
Conference Paper
The effectiveness of fourth-order derivative spectroscopy has been recently demonstrated, from a mathematical point of view and by illustrating its application in a number of case studies. In this work, the usefulness of the technique is shown by focalizing on the application to a couple of "difficult" cases taken from the literature, and its appli...
Code
This Python code implements the computations presented in the paper by Olmi and Bittelli (2015). The code is presented and all the data presented in the paper are analyzed. A general file is also included for users to apply to her or his own experimental data.
Article
Complex materials exhibit a dielectric behavior that can shed light on their chemophysical structure through a comprehension of the physical mechanisms originating that behavior. For the interpretation of a complex dielectric shape, where multiple relaxations are present (and usually described by semi-empirical functions), a correct interpretation...
Article
In this paper, we study in the framework of the Gaussian model, the relaxation dynamics, and diffusion process on structures which show a ring-shape geometry. In order to extend the classical connectivity matrix to include interactions between more distant nearest neighbors, we treat the second derivative with respect to position by using the three...
Article
Rainfall-induced shallow landslides are common phenomena in many parts of the world, affecting cultivation and infrastructure and sometimes causing human losses. Assessing the triggering zones of shallow landslides is fundamental for land planning at different scales. This work defines a reliable methodology to extend a slope stability analysis fro...
Book
This innovative study presents concepts and problems in soil physics, and provides solutions using original computer programs. It provides a close examination of physical environments of soil, including an analysis of the movement of heat, water and gases. The authors employ the programming language Python, which is now widely used for numerical pr...
Chapter
Full-text available
Riassunto Sono presentati i primi risultati di uno studio multidisciplinare realizzato nell'a-rea collinare dell'Oltrepò Pavese finalizzato a studiare i meccanismi di innesco del-le frane superficiali e in particolare il ruolo del rinforzo meccanico dei suoli provo-cato dalle radici di vite oltre che gli effetti che le pratiche gestionali dei vigne...
Article
Full-text available
Wind-energy production may be expanded beyond regions with high-average wind speeds (such as the Midwest U.S.A.) to sites with lower-average speeds (such as the Southeast U.S.A.) by locating favorable regional matches between natural wind-speed and energy-demand patterns. A critical component of wind-power evaluation is to incorporate wind-speed dy...
Article
Full-text available
Rainfall-induced shallow landslides are common phenomena in many parts of the world, affecting cultivations and infrastructures and causing sometimes human losses. Assessing the shallow landslides susceptibility is fundamental for land planning at different scales. This work defines a reliable methodology to extend the slope stability analysis from...
Article
Supply and demand — the general economic model that makes the world spin — underpins how far clean renewable energy can go to satisfy our needs. Wind power supply is dependent upon suffcient wind speeds being present to spin turbines. Daily wind speed patterns over land are created by ther- mal heat exchanges with oceans, yet scientists and enginee...
Chapter
In order to understand the effect of climatic variables on the hydrological response of a shallow soil and the consequent role of atmospheric features in the triggering mechanism of rainfall-induced landslides, a long-term field monitoring of the wa-ter regime of a slope results very helpful. In this work, field measurements of the soil saturation...
Article
The paper presents the result of an application of the GeoWEPP model in a heterogeneous semi-agricultural catchment located in the northern Italian Apennines mountain range. The objectives were: (a) to evaluate the GeoWEPP model in a heterogeneous catchment in a Mediterranean climate and (b) to examine the effect of digital elevation model grid siz...
Article
Full-text available
The paper analyzes the rainfall-flow relationships and the rainfall-flow-sediment relationships obtained respectively in two years and six months of monitoring in a small semi-agricultural catchment in the Apennines mountain range (Italy) with Mediterranean climate. The climate seasonality involves intra-annual variability in the hydrological respo...
Chapter
Identifying the processes linked to soil-atmosphere interaction which control the hydrological and mechanical behavior of a soil slope is becoming of crucial interest in order to define shallow landslides triggering factors and to assess the susceptibility towards these phenomena.
Chapter
Rainfall-induced shallow landslides are hazardous phenomena that could cause several damages to infrastructures and people. To understand the hydrological and mechanical triggering conditions of shallow landslides in an area of Oltrepo Pavese (Northern Apennines, Italy) a field monitoring was conducted. In this work the results of 16 months monitori...