1,001 research outputs found
AMALPI TREK : Dal Maloja al Gottardo : Alpi in Movimento - Movimento nelle Alpi
No full textAMALPI Trek è un itinerario geoturistico transfrontaliero che, dal Passo del Maloja alla regione del San Gottardo, conduce lungo antichi e nuovi percorsi, con le loro peculiarità naturali e antropiche (cascate, borghi), storico-archeologiche (come gli scavi a Piuro) e gastronomiche (come i piatti preparati nelle pentole in pietra ollare, i lavecc), alla scoperta dei processi che drasticamente modificano il territorio alpino: le grandi frane, passate, presenti e future.
La guida permette a chiunque di gustare in altro modo la bellezza delle valli attraversate, magari percorrendone a piedi solo brevi tratti, o raggiungendole con altri mezzi (meglio se pubblici o a zero emissioni), potendo contare su chiavi di lettura fornite da studiosi, per comprendere l’evoluzione del paesaggio e la storia dei fenomeni franosi. L’auspicio è quello di contribuire a promuovere una nuova curiosità verso le montagne e ciò che le anima, le frane, aumentando la consapevolezza del rischio in ambiente alpino
Reconstructing deglaciation dynamic and environmental changes in the Italy-Switzerland transboundary area of the Val Viola Pass
No full textThe deglaciation following the Last Glacial Maximum (LGM) is one of the most important climate-driven surface processes that occurred in the Alps. The deglaciation contributed to shape the landscape of high-mountain areas. In the Lateglacial and during the Holocene, water-related, slope, and periglacial processes have interplayed with pedogenesis, shaping the landscape of the deglaciated alpine valleys.
In order to reconstruct the deglaciation history and environmental changes occurred in the Val Viola area (Upper Valtellina-Poschiavo Valley), we used a multidisciplinary approach including a detailed geomorphological mapping of the area (Bollati et al., 2018) and field and laboratory characterization of post-LGM deposits and soils. As regards the analysis of deposits and soils, six soil profiles were sampled and analysed along an altitudinal transect between 2325 m and 2430 m a.s.l.; this helped elucidating the process of soil development and detecting the presence of different pedological units. Moreover, Schmidt’s hammer measurements were performed in order to establish the degree of surface weathering and thus the exposure-age of rock glacier debris and bare rock surfaces. Debris and rock surfaces suitable for Schmidt’s hammer exposure dating were selected according to the results of geomorphological mapping. Finally, two peat bog deposits and charcoals found in one soil profile were dated with AMS-14C dating. Analyses of soil profiles allowed the identification of the occurrence of different slope instability phases, which are recorded as buried surfaces, suggested by the presence of stone lines and/or granulometric discontinuity. A pristine phase of surface stability, likely characterized by increasing soil forming processes, is dated at 8120±30 BP, corresponding to the radiocarbon date of the bottom of a peat bog. Subsequently, this phase of stability has been affected by rexistasy phase probably due to the worsening of climate conditions. This instability phase occurred after the 4650 ± 30 BP, radiocarbon date of the charcoal found in a soil horizon buried below a stone line. A similar radiocarbon age (4320±30 BP) was found also at the bottom of a second peat bog. Above the stone line, covering the charcoal, a more recent soil unit testifies the occurrence of new environmental conditions promoting pedogenesis. In nearby areas, Schmidt’s Hammer was used to date bare surfaces (e.g. Scotti et al., 2017), and the regression lines obtained by the authors were used to calibrate rebound values collected in our study area. The data show that the rock weathering processes on the top of two exharated granitic gneiss outcrops started around 17 ky BP being in accordance with the timing of deglaciation since the Last Glacial Maximum and with soil developments. Schmidt’s hammer rebound values and soils analysis provided additional data useful for reconstructing the landscape evolution of the region
Report on the application of the tool for assets evaluation in the Museo Valle di Blenio and prioritization of interventions
No full textReport on the application of the tool for assets evaluation in the Museo Valle di Blenio and prioritization of interventions
The application of a tool for assets evaluation focussed on the Museo Valle di Blenio, an historical and
ethnographic museum located in the ancient palace called Palazzo dei Landfogti (House of Landfogti, also
called Palazzo del Pretorio; Pretorio’s Palace) in Lottigna, Municipality of Acquarossa, Canton of Ticino,
Switzerland.
The assessment involved the team of the museum (the current curator and protagonists of the museum
history, such as the former president of the museum, the former curator and one of the guardians),
representatives of the Ticino Canton, the Civil Protection, the Centre for dialectology and ethnography
(responsible for the coordination of the regional ethnographic museums), the Association of Ethnographic
Museum of Ticino. The former curator of the museums is an art historian specialised in the collection and in the cultural heritage of the area, the honorary president of the museum is an expert of the history of the
institution and of the territory and the curator Cristian Scapozza is a physical geographer also researcher at SUPSI and directly engaged in the CHEERS project.Deliverable in the frame of the European project Interreg Alpine Space CHEERS Cultural Heritage. Risks and Securing activities https://www.alpine-space.eu/project/cheers/
Deliverable D.T1.2.2. Activity A.T1.2 Set up of methodology for the evaluation of cultural assets and prioritization of securing & salvaging intervention
Observatorio de bibliometría y cienciometría USTA Métricas de autor FICHA BIBLIOMÉTRICA Cristian Fernando Tellez Piñerez
No full textInforme de las métricas de autor del Dr. Cristian Fernando Tellez Piñerez de las
publicaciones indexadas en Google Académico cuyo objetivo es entregar un insumo
para el fortalecimiento de las capacidades y potencialidades de los autores de la
Universidad Santo Tomás en el posicionamiento y visibilidad de sus publicaciones.Report of the author metrics Cristian Fernando Tellez Piñerez of the publications
indexed in Google Scholar whose objective is to provide an input for the
strengthening of the capacities and potentialities of the authors of the Santo Tomás
University in the positioning and visibility of their publications.http://unidadinvestigacion.usta.edu.c
The Ticino-Toce ice conveyor belts during the last glacial maximum
No full textISSN:2279-7327ISSN:2279-7335ISSN:2279-733
Imports under a foreign exchange constraint
No full textThe traditional model of import behavior -- which looks only at the gross domestic product (GDP) and real import prices as explanatory variables -- failed to predict or explain the developing countries'import slumps in the early 1980's. This paper expands on a more useful model, the Hemphill, which incorporates the traditional variables (relative prices and domestic income) with the variables introduced by Hemphill (foreign exchange receipts and international reserves). Section 2 of this paper discusses the theoretical models in the present study. The traditional model, used here as a benchmark, is presented first, and is later extended to include foreign exchange constraints. Section 3 presents the empirical estimates of the general import models that include foreign constraints, and two special cases, the Hemphill and benchmark models, using pooled, cross-section time series. Section 4 concludes that policy makers must look at the policies that affect GDP and prices and the availability of foreign exchange when trying to estimate import behavior in developing countries.Economic Theory&Research,Environmental Economics&Policies,Economic Stabilization,Inequality,Geographical Information Systems
Lateglacial evolution of the Brenno glacier (Southern Swiss Alps) : preliminary results
No full textThe Lateglacial evolution of the Ticino glacier and tributaries is poorly known because of the lack of research by Quaternary geomorphologists during the last decades. In spite of the interest for the cryosphere reactions during the Lateglacial climate warming, only few scientific studies were carried out about the history of the northern valleys of the Ticino Alps during the deglaciation (e.g. Seiffert 1953, Renner 1982, Hantke 1983). Within the framework of geomorphological investigations on the Lateglacial and Holocene glacier/permafrost evolution in the Ticino Alps, the history of the Brenno glacier (Blenio Valley, Eastern Ticino Alps) during the end of the Pleistocene has been studied. The deglaciation sequence of the Blenio Valley is still not complete (Scapozza et al. 2009). Only the first glacial stadial of the Brenno glacier and the last Lateglacial stadials of the Greina region (northern Blenio valley, see Fontana et al. 2008) and of the upper Malvaglia Valley (eastern Blenio Valley, see Scapozza et al. 2008) have been unequivocally defined. For every stadial, the surface of the palaeoglacier and the depression of the Equilibrium Line Altitude (ELA) have been reconstructed on the base of geomorphological mapping.
The first individual glacial stadial of the Brenno glacier corresponds to the Biasca stadial of the Ticino glacier defined by Hantke (1983). The ELA depression of 1100-1200 meters and its morphological and glaciological characteristics allow us to correlate this stadial with the Weissbad stadial defined by Keller (1988).
In the Greina region, three stadials corresponding to the end of the Lateglacial have been identified, with an ELA depression of 110, 210 and 310-350 meters (Fontana et al. 2008).
In the upper Malvaglia Valley, three stadials corresponding to the end of the Oldest Dryas and the Younger Dryas have been identified for the Orino glacier, with an ELA depression of 290, 400-420 and 470-560 meters (Scapozza et al. 2008).
If we consider the other (fragmentary) glacial deposits of the Blenio Valley, it is possible to define a regression sequence of the Brenno glacier with 8 stadials, from the Biasca stadial to the end of the Younger Dryas. An attempt of correlation with the model "Gothard" developed by Renner (1982) and Hantke (1983) and with the model "Eastern Swiss Alps" developed by Maisch (1982) is proposed in Table 1. The following chronological conclusions are, therefore, proposed: (1) the Biasca stadial is probably the first stadial after the transition Pleniglacial - Lateglacial; (2) the stadials BRE 7 to BRE 3 are positioned between the beginning of the Lateglacial and the Bølling-Allerød interstadial; (3) the stadials BRE 2 and BRE 1 are assumed to be related to the Younger Dryas event
The not trivial subdivision of nappes in the Lower Pennine domain of the Central Alps (Riviera and Verzasca Valleys, Swiss Alps)
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