Ricchetti, E.
Polemio, M., 2001, Vulnerability Mapping of Carbonate Aquifer using Geografic Information Systems,
IEEE International Symposium on Geoscience and Remote Sensing (IGARSS) 7 (2001): 3087–3089. doi_10.1109/IGARSS.2001.978265,
DOI: 10.1109%2FIGARSS.2001.978265
Abstract
Computer techniques such as Geographic Information Systems are applied to the evaluation of the vulnerability ...
Computer techniques such as Geographic Information Systems are applied to the evaluation of the vulnerability of a deep carbonate aquifer. The study area is located in the low Murgia Plateau (Apulia) and characterized by Mesozoic limestone and dolomite rocks of several thousand meters thickness. A wide and thick aquifer resides in these carbonate rocks. Its groundwater flows toward the sea mainly under pressure. Due to their high quality, the water resources of this aquifer are particularly valuable for the local communities and therefore must be protected from pollution and inappropriate use. The vulnerability map of the aquifer is an indispensable tool for the effective management of water resources and to support environmental planning. Geographic Information Systems can be effectively applied to the implementation of vulnerability models. In this study the SINTACS evaluation method was implemented in a GIS and a digital vulnerability map produced. The computerized multilayer analysis performed by the GIS is time effective and leads to more comprehensive and accurate results with better spatial resolution.
Polemio, M.
Limoni, P. P., 2001, L’evoluzione dell’inquinamento salino delle acque sotterranee della Murgia e del Salento,
Memorie della Societa Geologica Italiana (Testo stamp.) 56 (2001): 327–331.,
Abstract
In order to assess the evolution of seawater intrusion and the resulting saline Contamination, the ...
In order to assess the evolution of seawater intrusion and the resulting saline Contamination, the trends of the 0,5 g/l isohatine over three time lags (1981, 1989. and 1997) were compared, since, at First approximation, water whose salinity is equal or lower than the above value is salt contamination free. In large areas along the Adriatic and lonian shoreline groundwater saline contamination is resulted to be a long-standing phenomenon. Only the Murgia interior and a restricted strip in the middle of the salentine peninsula have not been contaminated so far. From 1981 to 1989, the reference isohaline was reported to recede gradually. Then, the phenomenon either stopped or was reversed, as was the case in some Murgia and salentine areas, where, however, sorn additional withdrawals of the isohaline have occurred.
The increasing saline Contamination in the salentine peninsula is confirmed by the evolution of the chlorine ion concentration (a parameter which indicates seawater contamination) over thirty years in eighteen wells. The analysis of data shows that the increased groundwater saline contamination is closely related to overdrafts. Before 1980. no significant concentration increase was reported in the majority of wells. The phenomenon became apparent in the late 80s after some dry years that result in a reduced recharge of aquifers and increased groundwater withdrawals. However, a less marked rise in salinity has been reported over the past thirty years.
Cotecchia V.(*), Pagliarulo R.(**), 2001, Environmental evolution of some archaeological sites on coastal areas_ the case of the ancient Sybaris,
III International Congress of Science and Technology for the safeguard of Cultural Heritage in the Mediterranean Basin, pp. 96–101, Alcalà de Henares, Spagna, luglio 2001,
Polemio M., Petrucci O., 2001, La ricerca internazionale sulle relazioni tra piogge e frane,
X Congresso Nazionale Geologi_ Il territorio fragile, lo stato del dissesto idrogeologico nel mondo, Previsione, prevenzione, mitigazione, pp. 503–510, Roma, 8 dicembre 2000,
M. Polemio, 2001, Vulnerabilità delle risorse idriche sotterranee pugliesi_ degrado quali-quantitativo,
Workshop "Il degrado qualitativo delle acque sotterranee in Puglia", Politecnico di Bari, 18 dicembre 2001,
M. Polemio, 2001, Geological, hydrogeological and geotechnical characterisation of the Ionian-Lucanian coastal plain,
. II Meeting "Crystalisation technologies for prevention of salt water intrusion", Unione Europea, V Programma Quadro (1998-2002), Kavala, Grecia, 25-27/10/2001,
M. Polemio, 2001, Preliminary characterisation of the Italian test site,
I Meeting "Crystalisation technologies for prevention of salt water intrusion", Unione Europea, V Programma Quadro (1998-2002), Freiberg, Germania, 20-21/4/2001,
M. Polemio, 2001, I rischi di degrado delle acque sotterranee pugliesi. Le ricerche in corso e l’esperienza formativa,
CNR-CERIST, Giornata di studio "Il degrado delle risorse idriche sotterranee pugliesi_ l'esperienza delle reti di monitoraggio e degli enti preposti alla gestione. Il contributo della comunità scientifica all'alta formazione", Bari, 11 aprile 2001,
M. Polemio, 2001, Apulian groundwater resources management and degradation risk (Southern Italy),
Geophysical research abstracts (Online) 3 (2001): 206.,
M. Polemio, M. Di Cagno, V. Dragone, R. Virga., 2001, The depletion of the Apulian groundwater resources (Southern Italy),
Geophysical research abstracts 207 (2001): 3.,
Calzolari C., Ungaro F., 2001, Using existing soil databases for estimating water-retention properties for soils of the Pianura Padano-Veneta region of North Italy,
Geoderma (Amst.) 99 (2001): 99–112.,
Abstract
Data collected on benchmark soils from experimental sites in the Pianura Padano-Veneta, Northern Italy, stored ...
Data collected on benchmark soils from experimental sites in the Pianura Padano-Veneta, Northern Italy, stored in local soil data bases were used to test the reliability of existing pedotransfer functions to derive soil water retention properties, required as input to simulation models of pollutant transport in soils. Eight different algorithms were selected according to their principle of calculation, input variable requirements and in agreement with the different information currently existing in local soil databases. Results were validated against an experimental set of
139 retention curves. In order to assess the validity of the selected pedotransfer functions and to provide operative guidelines for their selection, quantitative error indices mean difference, and square root of the mean squared difference, were calculated and the results evaluated for the whole data set and for subsets of observations classed in terms of soil textural composition, bulk density, organic carbon content and matric potential. Non-parametric significance tests for unbalanced data
were applied to assess the significance of the differences among classes. According to the kind of soil on which they were tested, the selected pedotransfer functions showed significantly different responses in terms of accuracy, providing therefore useful indications for their optimal applicability for different levels of available information.
1) Maraga Franca 2) Vlasak Pavel, 2001, Effect of grain size distribution and turbulent flow conditions on sediment transport in laboratory and river channels,
2001,
Abstract
Programma triennale di ricerca 2001-2003 di rinnovo bilaterale approvato con soggiorni all'estero per sei studiosi ...
Programma triennale di ricerca 2001-2003 di rinnovo bilaterale approvato con soggiorni all'estero per sei studiosi italiani
Cardinali M. 1, Antonini G. 2, Reichenbach P. 3, Guzzetti F. 4, 2001, Carta foto-geologica ed inventario dei movimenti franosi dell?alto bacino del Fiume Tevere. Photo geological and landslide inventory map for the Upper Tiber River basin.,
2001,
Abstract
La carta fornisce nuove informazioni litologiche e giaciturali raccolte specificatamente per lo studio dellabbondanza e ...
La carta fornisce nuove informazioni litologiche e giaciturali raccolte specificatamente per lo studio dellabbondanza e distribuzione dei dissesti nellalto bacino del Fiume Tevere. Come tale costituisce un supporto per studi regionali di carattere morfologico ed evolutivo, e per limpostazione di ricerche di dettaglio, puntuali od areali. I dati contenuti nella carta possono essere utilizzati per ricerche sullinterazione fra lassetto geologico e la franosità, per studi statistici sulla distribuzione degli eventi franosi, e per la stima della pericolosità e del rischio da frana. La carta è pubblicata per convenienza a scala 1_100.000 ma è stata realizzata a partire da indagini foto-geologiche effettuate utilizzando fotografie aeree a scala 1_33.000 e 1_13.000, e da rilevamenti in campagna realizzati a scala 1_10.000. Il riporto delle informazioni è avvenuto a scala 1_25.000 e nessun aggiustamento è stato effettuato in fase di stampa. Alcune minori incongruenze fra la posizione delle frane e landamento della topografia o dellidrografia sono dovute alla riduzione di scala.
Tropeano D., Turconi L., 2001, L’evento del 13 giugno 2000 nelle Alpi Occidentali_ effetti sui versanti e nella rete idrografica,
2001,
Polemio M., 2001, Apulian groundwater resources management and degradation risk (Southern Italy),
XXVI EGS General Assembly, Nice, 2001,
m. Polemio, M. Di Cagno, V. Dragone, R. Virga, 2001, The depletion of the Apulian groundwater resources (Southern Italy),
XXVI EGS General Assembly, Nice, 25 - 30 March, 2001,
Polemio M.; Petrucci O., 2001, Hydrogeological monitoring and image analysis of a mudslide in Southern Italy,
Physics and chemistry of the earth. Part C_ Solar-terrestrial and planetary science 9 (2001): 689–695. doi_10.1016/S1464-1917(01)00068-X,
DOI: 10.1016%2FS1464-1917(01)00068-X
Abstract
This paper describes a methodological example of a data-integration procedure to improve the knowledge ...
This paper describes a methodological example of a data-integration procedure to improve the knowledge of landslide hazard related to a seismic area in the southern Apennine (Italy). Attention is focused on remote sensing data. The analysis is validated using detailed topographical, geophysical, geotechnical and hydrogeological data as ground truth. The investigated phenomenon, which started at the end of 1993, is an earthflow. The presented methodology recommends the combined use of DEM, multi-temporal panchromatic visible aerial photographs and thermal infrared images. The integration between these data and multidisciplinary monitoring data proved useful. The main hydrogeological pattern, the geological and geomorphological framework and the areas of latent instability can be clearly determined. Insight can be gained through the synoptic slope view in the relative short time needed to cany out the analysis. The proposed approach can be regarded as a useful contribution to the evaluation of landslide hazard, particularly during emergency periods. 0 2001 Elsevier Science Ltd. All rights reserved the 1980 earthquake. Interdisciplinary investigations and monitoring 'were carried out between 1994 and 1996, within an EC funded research project (EC, 1996) and partially continued by Authors. This area has been chosen as a case study owing both to the landslide dimensions, which are large enough to allow remote sensing, and the wealth of available data. The selection of the most suitable kind of data - mainly remotely sensed - and the proposal of the most appropriate processing is aimed at improving landslide knowledge. The availability of field data ensures the validation of the proposed work. The combined analysis of DEM, panchromatic visible aerial photographs and thermal infrared images has been carried out aiming to perform a study approach able to provide a multi-temporal and multi-spectral analysis of slope instability phenomena. This framework has then been merged to data coming from multidisciplinary monitoring of study area in order to both verify the results of image analysis and test the proposed methodology.
R. Spandre 1 B. Marcolongo 2 M. Ceragioli 3 M. Giovannetti 3 A. Spinicci 3, 2001, AQUIFER VULNERABILITY ASSESSMENT_ IMPROVEMENT OF THE NEW PARAMETRIC MODEL W.A.T.ER.,
9 (2001): 1–11.,
Moramarco T. and Singh V.P., 2001, Simple method for relating local stage and remote discharge.,
Journal of hydrologic engineering 6/1 (2001): 78–81.,
Parise M., 2001, Landslide mapping techniques and their use in the assessment of the landslide hazard,
Physics and chemistry of the earth. Part C_ Solar-terrestrial and planetary science 26/9 (2001): 697–703.,
Abstract
Different types of maps depicting spatial distribution and activity of landslides are discussed in this ...
Different types of maps depicting spatial distribution and activity of landslides are discussed in this paper. Analysis of the existing literature on the topic, integrated with experience from a real case study in Southern Italy, helped to point out advantages and drawbacks of each map, and their possible use for mitigating the landslide hazard.
Cannon S.H., Kirkham R.M., Parise M., 2001, Wildfire-related debris-flow initiation processes, Storm King Mountain, Colorado,
Geomorphology (Amst.) 39 (2001): 171–188.,
Abstract
A torrential rainstorm on September 1, 1994 at the recently burned hillslopes of Storm King ...
A torrential rainstorm on September 1, 1994 at the recently burned hillslopes of Storm King Mountain, CO, resulted in the generation of debris flows from every burned drainage basin. Maps (1:5000 scale) of bedrock and surficial materials and of the debris-flow paths, coupled with a 10-m Digital Elevation Model (DEM) of topography, are used to evaluate the processes that generated fire-related debris flows in this setting. These evaluations form the basis for a descriptive model for fire-related debris-flow initiation.
The prominent paths left by the debris flows originated in 0- and 1st-order hollows or channels. Discrete soil-slip scars do not occur at the heads of these paths. Although 58 soil-slip scars were mapped on hillslopes in the burned basins, material derived from these soil slips accounted for only about 7% of the total volume of material deposited at canyon mouths. This fact, combined with observations of significant erosion of hillslope materials, suggests that a runoff-dominated process of progressive sediment entrainment by surface runoff, rather than infiltration-triggered failure of discrete soil slips, was the primary mechanism of debris-flow initiation. A paucity of channel incision, along with observations of extensive hillslope erosion, indicates that a significant proportion of material in the debris flows was derived from the hillslopes, with a smaller contribution from the channels.
Because of the importance of runoff-dominated rather than infiltration-dominated processes in the generation of these fire-related debris flows, the runoff-contributing area that extends upslope from the point of debris-flow initiation to the drainage divide, and its gradient, becomes a critical constraint in debris-flow initiation. Slope-area thresholds for fire-related debris-flow initiation from Storm King Mountain are defined by functions of the form Acr(tanè)3=S, where Acr is the critical area extending upslope from the initiation location to the drainage divide, and tanè is its gradient. The thresholds vary with different materials.
Le Pera E., Arribas J., Critelli S. & Tortosa A., 2001, The effects of source rocks and chemical weathering on the petrogenesis of siliciclastic sand from the Neto River (Calabria, Italy): implications for provenance studies.,
48 (2001): 357–378.,
Abstract
Chemical weathering is the main sand producer within the regolithic environment in northern Calabria. In ...
Chemical weathering is the main sand producer within the regolithic environment in northern Calabria. In addition, rapid erosion resulting from steep slopes remove weathered products, and rapid and short transport leads to minimal sediment maturation.
Le Pera E., Critelli S. & Sorriso-Valvo M., 2001, Weathering of gneiss in Calabria, Southern Italy,
Catena (Cremling.) 42 (2001): 1–15.,
Abstract
The effects of weathering in a Mediterranean climate on the mineralogy and microfabric of Paleozoic ...
The effects of weathering in a Mediterranean climate on the mineralogy and microfabric of Paleozoic gneiss of the Sila Massif have been studied.
The determination of quantitative micropetrographic indices provides a measure of the various stages of weathering.
Santaloia F., Cotecchia F., Polemio M., 2001, Mechanics of a tectonized soil slope_ influence of boundary conditions and rainfall,
Quarterly journal of engineering geology and hydrogeology 34 (2001): 165–185.,
Abstract
The Vadoncello landslide, mobilized in December 1993 and still active, is the reactivation of a ...
The Vadoncello landslide, mobilized in December 1993 and still active, is the reactivation of a landslide which took place, within the highly tectonized soils of a turbiditic formation, after the 1980 Irpinia earthquake (Southern Italy), when it was dragged by the movements of a larger landslide body at the toe of the slope, the Serra dellAcquara landslide. The Vadoncello landslide has been studied by means of the results of comprehensive investigations and monitoring carried out within a EEC funded research project, as well as by means of successive data. Consequently the complex geological model of the slope has been defined, in which the chaotic successions of soil and rock strata are grouped into soil complexes, the location of different landslide bodies is identified within the slope (the 1993-95 Vadoncello landslide, the 1980 Vadoncello landslide and the 1980 Serra dellAcquara landslide bodies) and two hydrogeological complexes are recognized. The soil mechanical properties are shown to be very poor, the deep soils being close to gross yield and therefore prone to large plastic straining due to even limited loading changes. The soil behaviour is consequently an important factor to the slope instability. The study of the soil displacements, both at the surface and at depth, shows that the landslide is composite, being formed of a shallow rotational slide at the top of the slope, a shallow earthflow downslope and an underlying mechanism of slow and long-lasting irrecoverable movements, which are also monitored on the Serra dellAcquara landslide body, at the toe of the Vadoncello slope. These slow movements are considered to be consequent to the plastic flow of the weak clayey soils in the slopes, which may be activated by seasonal rainfall effects, by the frequent low-medium intensity seismic events occurring in the area, and also by the morphological changes resulting from the slow movements themselves. Rainfall intensity is not found to be the single direct cause of the shallow landslide reactivation, which instead is proposed to be due to the combination of the effects of the low return-period rainfalls in winter 1993 and the mechanism of slow movements active both at depth in the slope and at its toe.
D'Ambrosio D. 1, Di Gregorio S. 1, Gabriele S. 2, Gaudio R. 2, 2001, A Cellular Automata Model for Soil Erosion by Water,
26(1) (2001): 33–39.,
Abstract
A Cellular Automata model for soil erosion by water, SCAVATU, was developed. It involves a ...
A Cellular Automata model for soil erosion by water, SCAVATU, was developed. It involves a larger number of states in comparison to the previous models, including altitude, water depth, total head, vegetation density, infiltration, erosion, sediment transport and deposition.
The model was applied to the small catchment of the Fiumara Armaconi, Calabria, Southern Italy. First simulations gave encouraging results, even if field erosion data are needed for validation and future calibration and setting of the CA parameters.
The model is susceptible of improvement and could represent a valid alternative to classical physically based methods, for the description of complexity through simple local rules.
GULLA' G., NICEFORO D., 2000, Misure ai piezometri installati nel sito attrezzato di Via San Francesco (S. Pietro in Guarano – Cosenza – Area di Studio della Sila Occidentale) – Esame preliminare delle misure.,
2000,
GULLA' G., NICEFORO D., 2000, Misure delle pressioni neutre nel sito attrezzato di Via Vigne (S. Pietro in Guarano – Cosenza – Area di Studio della Sila Occidentale) – Esame preliminare delle misure.,
2000,
Sorriso-Valvo M. (1), Tansi C. (1), Borrelli L. (2), De Simone M. (2), 2000, A numerical appraisal in the study of the relationships between joint separation and faulting,
XXXI International Geological Congress (IGC), Rio de Janeiro, Brazil, August 10-20 2000,
Fiore S, Piccarreta G, Tateo F, Santaloia F, 2000, The Flysch Rosso shales from the southern Apennines, Italy. 2. The origin of the colour.,
Periodico di mineralogia (Testo stamp.) 69 (2000): 79–87.,
Fiore S, Piccarreta G, Santaloia F, Santarcangelo R. Tateo F, 2000, The Flysch Rosso shales from the southern Apennines, Italy. 1. Mineralogy and geochemistry,
Periodico di mineralogia (Testo stamp.) 69 (2000): 63–78.,
A. REFICE, F. BOVENGA, J. WASOWSKI, L. GUERRIERO, 2000, Using InSAR Data for Landslide Monitoring_ a Case Study from Southern Italy,
IGARSS 2000, pp. 2504–2506, Honolulu, Hawaii, USA, 24-28 July 2000,
Abstract
Use of InSAR techniques in the study of unstable slopes has been suggested in recent ...
Use of InSAR techniques in the study of unstable slopes has been suggested in recent works. However, in the case of mass movements, which typically occur in high-relief terrain and are of limited areal extent, the detection of ground surface deformation is difficult. Moreover, the presence of vegetation cover and atmospheric effects introduces coherence loss and resolution problems in the analysis of interferometric pairs. Thus, extreme care must be taken in every step of nterferometric SAR processing in order to obtain results that can be easily interpreted and be of practical utility in landslide hazard studies. We present the results of the application of InSAR and DlnSAR techniques to a landslide
test area located in the Southern Apennines. A number of SAR images was selected, whose dates coincide with periods of mass movement activity documented by in situ controls. DlnSAR processing was conducted in order to assess the potential of satellite radar data for landslide monitoring. Coarse resolution is an important limiting factor for effective information extraction. Advanced processing approaches may help to overcome this limit.
Refice, A; Bovenga, F; Wasowski, J; Guerriero, L, 2000, Use of InSAR data for landslide monitoring_ a case study from Southern Italy,
IGARSS 2000, pp. 2504–2506, Honolulu, Hawaii, USA, 24-28 July 2000,
Abstract
Use of InSAR techniques in the study of unstable slopes has been suggested in recent ...
Use of InSAR techniques in the study of unstable slopes has been suggested in recent works. However, in the case of mass movements, which typically occur in high-relief terrain and are of limited areal extent, the detection of ground surface deformation is difficult. Moreover, the presence of vegetation cover and atmospheric effects introduces coherence loss and resolution problems in the analysis of interferometric pairs. Thus, extreme care must be taken in every step of interferometric SAR processing in order to obtain results that can be easily interpreted and be of practical utility in landslide hazard studies. We present the results of the application of InSAR and DInSAR techniques to a landslide test area located in the Southern Apennines. A number of SAR images was selected, whose dates coincide with periods of mass movement activity documented by in situ controls. DInSAR processing was conducted in order to assess the potential of satellite radar data for landslide monitoring. Coarse resolution is an important limiting factor for effective information extraction. Advanced processing approaches may help to overcome this limit.
DEL GAUDIO V., WASOWSKI J., 2000, Seismic rockfall hazard in the Sele river valley, Southern Italy,
8th International Symposium on Landslides, pp. 427–432, Cardiff, UK, June 2000,
WASOWSKI J., LOLLINO G., 2000, Post-failure activity of the 1989 Caramanico landslide (Italy): implications for a road tunnel planned upslope (invited paper).,
International Conference on Geotechnical & Geological Engineering GeoEng2000, Melbourne, Australia, 19-24 November, 2000,
DEL GAUDIO V., WASOWSKI J., PIERRI P., MASCIA U., CALCAGNILE G., 2000, Gravimetric study of a retrogressive landslide in southern Italy.,
Surveys in geophysics 21 (2000): 391–406.,
Wasowski Janusz
Del Gaudio Vincenzo, 2000, Foreword to the Special Issue of the Symposium on Geophysical Investigation of Landslides and Unstable Slopes,
Surveys in geophysics 21 (2000): 331–333.,
WASOWSKI J., DEL GAUDIO V., 2000, Evaluating seismically induced mass movement hazard in Caramanico Terme (Italy).,
Engineering geology 58 (2000): 291.,
A. REFICE, L. GUERRIERO, F. BOVENGA, J. WASOWSKI, N. VENEZIANI, S. ATZORI, A. R. FERRARI, M. MARSELLA, 2000, Detecting Landslide Activity by SAR Interferometry,
ESA ERS-ENVISAT Symposium, Gothenburg, Sweden, 16-20 October 2000,
Abstract
Operational monitoring of slope instabilities by SAR Interferometry poses a number of challenges due to ...
Operational monitoring of slope instabilities by SAR Interferometry poses a number of challenges due to the limited
spatial extent of the landslide areas and rainy conditions usually associated with mass movement events. In this work we
present the results of the application of both conventional DInSAR techniques, and a point-by-point, multitemporal study
of the long-term stability of selected high-coherence objects on the ground.
The techniques were applied to selected test sites in the Central and Southern Apennines of Italy. Results obtained by
processing a number of ERS SAR images acquired over the test areas before, during and after critical events are presented.
The evaluation of the results is performed through the comparison with data from ground based techniques. The various
factors influencing the suitability of the selected data for interferometric applications, i.e. resolution, temporal and spatial
baselines, and times of acquisition, are assessed.
For one of the test sites, an application of the so-called "permanent scatterers" (PS) technique, originally proposed by
the POLIMI group, is being attempted to monitor small displacements between points exhibiting a high long-term phase
coherence and a strong and stable backscatter level.
G. Spilotro, L. Coviello, R. Trizzino, 2000, Post Failure Behaviour of Landslide Bodies,
8th ISL, Cardiff, Wales, 26-30 June 2000,
Moscariello, A., Deganutti, A. M., 2000, Sedimentary and hydrologic processes of a debris flow dominated alluvial fan – Moscardo Fan, Italy,
Second International Conference on Debris Flow Hazards Mitigation, Taipei, Taiwan, Aug 2000,
Abstract
This work proposes the study of the sedimentary processes compared with the sedimentary record of ...
This work proposes the study of the sedimentary processes compared with the sedimentary record of the Moscardo Torrent alluvial fan, located in the Eastern Italian Alps. This comparison allows us to better analyze and understand the role that such debris flow events have in building up the fan and reshaping its surface. Given the high frequency of debris flow events (from one to four per year) the Moscardo fan is a very good place where to study fan processes. This basin has been monitored since 1989 yielding a long sequence of events stage data and related rainfall. Facies analysis and sedimentological investigation of the fan deposits have been carried out within
this work in order to determine sediment distribution and define the main sedimentary processes responsible for the sediment transport and deposition on the fan. Utilizing the long series of recorded stage data, different hydrographs features have also been analyzed and compared with related sedimentary processes.
Ardizzone F.(1), P. Guarnieri (2) e S. Sterlacchini (3), 2000, Integrated database and GIS techniques to convert geologic field information into geological and thematic maps_ the CARG Project.,
Third congress on regionale geological cartography and information systems, Monaco, Germania, 2000,
Moramarco T and Singh V.P., 2000, A practical method for analysis of river waves and for kinematic wave routing in natural channel networks,
Hydrological processes (Online) 14(1) (2000): 51–62. doi_10.1002/(SICI)1099-1085(200001)14:1<51_:AID-HYP909>3.0.CO;2-Z,
DOI: 10.1002%2F(SICI)1099-1085(200001)14:1<51_:AID-HYP909>3.0.CO;2-Z
Abstract
The behaviour of river waves is described using a simplified dimensionless form of the momentum ...
The behaviour of river waves is described using a simplified dimensionless form of the momentum equation in
conjunction with the continuity equation. Three dimensionless parameters were derived based on a quantitative
linear analysis. These parameters, which depend on the Froude number of the steady uniform flow and the
geometric characteristics of the river, permit quanti®cation of the influence of inertia and pressure in the
momentum equation. It was found that dynamic and diusion waves occur mainly on gentle channel slopes and
the transition between them is characterized by the Froude number. On the other hand, the kinematic wave has
a wide range of applications. If the channel slope is greater than 1%, the kinematic wave is particularly suitable
for describing the hydraulics of flow. Since slopes in natural channel networks are often greater than 1%, an
analytical solution of the linearized kinematic wave equation with lateral inflow uniformly distributed along the
channel is desirable and was therefore derived. The analytical solution was then implemented in a channel
routing module of an existing simple rainfall-runoff model. The results obtained using the analytical solution
compared well with those obtained from a non-linear kinematic wave model.
PETRUCCI O., 2000, Le Banche dati regionali_ l’esperienza di ASICal,
Biennale della Protezione Civile, BASTIA UMBRA, 27 NOVEMBRE 2000,
Abstract
La conoscenza inadeguata delle aree esposte a pericolo di frane ed inondazioni fluviali genera incertezze ...
La conoscenza inadeguata delle aree esposte a pericolo di frane ed inondazioni fluviali genera incertezze nella scelta degli interventi prioritari di sistemazione e difesa del suolo e condiziona gli studi di pianificazione territoriale.
Non è, infatti, possibile stabilire la destinazione d'uso per un territorio per il quale non sia disponibile un quadro di riferimento relativo ai fenomeni di dissesto idrogeologico in atto o potenziali. Una adeguata programmazione territoriale, oltre che sul quadro completo delle risorse territoriali, deve basarsi anche sulla valutazione del rischio idro-geologico al quale il territorio è soggetto.
La valutazione probabilistica del rischio risulta fortemente condizionata dalla difficoltà di identificare la frequenza di accadimento dei fenomeni considerati. Disporre di una informazione sugli eventi del passato, omogeneamente distribuita su un ampio intervallo temporale, che comprenda la descrizione dei fenomeni accaduti e degli eventi pluviometrici che li hanno innescati, consente di formulare ipotesi ragionevoli circa l'entità degli eventi da temere, il loro periodo di ritorno, i fenomeni piovosi che possono determinarli.
Si possono così costruire plausibili scenari di evento sulla base dei quali programmare adeguati interventi di riduzione del rischio o predisporre idonei piani di emergenza.
PETRUCCI O., 2000, La Caratterizzazione delle aree a rischio di piena_ un caso di studio in Calabria,
Giornata di Studio sul Rischio Idrogeologico. AIGA - Associazione Italiana Geologia Applicata, ROMA, 15 DIC 2000,
Sorriso-Valvo M., Antronico L., Ausilio E., Caloiero D., Dente G., Gabriele S., Gaudio R., Gullà G., Iovine G., Merenda L., Nicoletti P.G.. Petrucci O., Tansi C., Terranova O., Zimmaro S., 2000, Evento alluvionale dell’8-10 settembre 2000. Rapporto Speditivo del CNR-IRPI di Rende (CS) e del Dipartimento di Difesa del Suolo dell’Università della Calabria realizzato su incarico del Dipartimento Nazionale di Protezione Civile,
2000,
GENEVOIS R., TECCA P.R., BERTI M., SIMONI A., 2000, Pore pressure distribution in the initiation area of a granular debris flow,
8th International Symposium on Landslides, pp. 615–620, Cardiff, UK, 26-30 June, 2000,
BERTI M., GENEVOIS R., La HUSEN R., SIMONI A.. TECCA P.R., 2000, Debris flow monitoring in the Acquabona watershed on the Dolomites (Italian Alps),
Physics and chemistry of the earth. Part B_ Hydrology, oceans and atmosphere 25 (2000): 707–715. doi_10.1016/S1464-1909(00)00090-3,
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2nd International Conference on Debris Flow Hazard and Mitigation - Mechanics, Prediction, and Assessment, pp. 283–291, Taipei, Taiwan, Aug. 16-18, 2000,
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Marchi L.
Brochot S., 2000, Les cônes de déjection torrentiels dans les Alpes françaises : morphométrie et processus de transport solide torrentiel,
Revue de géographie alpine (En ligne) 88 (2000): 23–38.,
Abstract
L'article présente quelques aspects
de la morphométrie des cônes de déjection
dans différentes zones des Alpes françaises.
Les ...
L'article présente quelques aspects
de la morphométrie des cônes de déjection
dans différentes zones des Alpes françaises.
Les relations entre, d'une part, la superficie et
la pente des cônes de déjection et d'autre part,
les caractéristiques morphométriques des bassins
versants (superficie et dénivelée spécifique)
ou la typologie des processus torrentiels
(transport solide par charriage, laves torrentielles)
ont été analysées. La superficie des
cônes de déjection est très peu reliée à celle du
bassin versant, alors qu'elle dépend fortement
de la largeur disponible dans le fond de la vallée
principale. La relation entre la dénivelée
spécifique du bassin versant et la pente du
cône de déjection est mieux définie. Les investigations
effectuées permettent, en outre, de
distinguer les cônes de déjection à forte pente,
présents à l'exutoire de bassins versants petits
et à forte dénivelée, où la forme de transport
solide prévalante est représentée par les laves
torrentielles, des cônes à faible pente,
construits par les torrents à charriage, dont les
bassins versants ont des superficies assez étendues
et une dénivelée spécifique relativement
faible. Ces résultats, qui confirment ceux obtenus
dans d'autres régions géographiques,
permettent de classifier les processus torrentiels
sur les cônes de déjection à partir de
simples paramètres morphométriques des bassins
versants et des cônes de déjection.