L'attivita' dell'Osservatorio Ximeniano nel 1946     

P. Prof. Dr. P. Cesare Coppedé 《Pure and Applied Geophysics》1947,10(1-2):11-20

Riassunto Si rendono note le condizioni e le attività attuali dell'Osservatorio; si espongono, mediante alcune tabelle, i principali valori meteoricinormali e si confrontano coi rispettivi valorimedi del 1946; infine si enumerano e si classificano i terremoti registrati nell'ultimo anno.

---

Summary We take care to notify the present conditions and activity of the Observatory. We are showing through some prospects the chief meteorologicalnormal values, confronting them with the respective middle values of the year 1946. At the end we give a statistical sketch of the earthquakes registered during the last year.

---

Résumé On fait connaître les conditions et les activités actuelles de l'Observatoire; on expose, par moyen de prospects, les principales valeurs météoriquesnormales et on les confronte avec les valeursmoyennes corréspondantes de l'année 1946; enfin on énumère et on classifie les tremblements de terre enrégistrés pendant la dernière année.

  相似文献   

Orizzonte fisico e soleggiamento al Villaggio Sanatoriale di Sondalo (Prov. di Sondrio)     

Cesare Aureli 《Pure and Applied Geophysics》1947,10(1-2):181-191

Riassunto Si calcolano — mediante la rappresentazione gratica degli archi diurni descritti dal Sole nel suo apparente moto diurno al disopra dell'orizzonte topografico visto dall'Osservatorio Meteorologico del Villaggio Sanatoriale di Sondalo — gli azimut, le altezze, gli istanti del sorgere e tramontare astronomico e topografico del Sole, mettendo in evidenza la decurtazione che il soleggiamento viene a subire a causa dei rilievi montuosi della località.Si determina, valendosi della diretta osservazione, la distribuzione del soleggiamento effettivamente possibile in diversi punti del Villaggio.Si esaminano infine i coefficienti di soleggiamento mettendoli in rapporto con la nebulosità osservata sulla località nel periodo di tempo 1940–44.

---

Zusammenfassung Der Verf. hat die effektiv mögliche Sonnenscheindauer in verschiedenen Punkten des «Villaggio Sanatoriale di Sondalo» berechnet und auch direkt gemessen. Die Ergebnissen werden verglichen und erörtet. Folgt eine Prüfung der Zusammenhang mit der Verteilung der Bewölkung.

  相似文献   

The impact of Late Quaternary glacio‐eustasy and tectonics on sequence development: evidence from both uplifting and subsiding settings in Italy     

Massimo Zecchin  Mauro Caffau  Luigi Tosi  Dario Civile  Giuliano Brancolini  Federica Rizzetto  Cesare Roda 《地学学报》2010,22(5):324-329

  相似文献   

Middle to Late Pleistocene palaeoenvironmental evolution of the southeastern Alpine Valeriano Creek succession (northeastern Italy)     

Giovanni Monegato  Sally E. Lowick  Cesare Ravazzi  Roberta Banino  Marta Donegana  Frank Preusser 《第四纪科学杂志》2010,25(5):617-632

The Middle–Late Pleistocene alluvial and lacustrine succession of Valeriano Creek (southeastern Alpine foothills, 190 m a.s.l.) documents the environmental evolution of the piedmont plain before the onset of the Last Glacial Maximum (LGM). The sedimentary record was investigated by multidisciplinary stratigraphical and sedimentological studies coupled with petrographic and palaeobotanical analysis. A chronology has been provided by luminescence, radiocarbon dating and pollen biochronology. The succession developed at the valley mouth of a small catchment and is confined in the piedmont plain by the alluvial fans of major rivers. The oldest deposits were formed during a cold phase during the late Middle Pleistocene. This part of the piedmont plain was generally stable until Termination II, when it was trenched more than 15 m deep by watercourses. The infilling succession of the trench, mostly by low‐energy alluvial sediments interbedded with mire and peat deposits, documents, for the first time on the southern side of the Alps, the relationships between fluvial activity, vegetation and climate change at the foothills piedmont plain during late Marine Isotope Stage (MIS) 5. The stadial–interstadial climate forcing implies a local reorganisation of fluvial dynamics and of forest composition, although substantial plant cover persisted even during cooler stadials. In accordance with coeval alluvial and speleothem records from the northern side of the Alps, this environmental evolution supports a very restricted Alpine glaciation of the main fluvial catchments of the southeastern Alps during MIS 5a–d. Copyright © 2009 John Wiley & Sons, Ltd.  相似文献   

3D-electrical resistivity tomography monitoring of salt transport in homogeneous and layered soil samples   总被引：1，自引：1，他引：0  

Cesare Comina  Renato Maria Cosentini  Gabriele Della Vecchia  Sebastiano Foti  Guido Musso 《Acta Geotechnica》2011,6(4):195-203

Monitoring transport of dissolved substances in soil deposits is particularly relevant where safety is concerned, as in the case of geo-environmental barriers. Geophysical methods are very appealing, since they cover a wide domain, localising possible preferential flow paths and providing reliable links between geophysical quantities and hydrological variables. This paper describes a 3D laboratory application of electrical resistivity tomography (ERT) used to monitor solute transport processes. Dissolution and transport tests on both homogeneous and heterogeneous samples were conducted in an instrumented oedometer cell. ERT was used to create maps of electrical conductivity of the monitored domain at different time intervals and to estimate concentration variations within the interstitial fluid. Comparisons with finite element simulations of the transport processes were performed to check the consistency of the results. Tests confirmed that the technique can monitor salt transport, infer the hydro-chemical behaviour of heterogeneous geomaterials and evaluate the performances of clay barriers.  相似文献   

Modelling galaxy spectra in presence of interstellar dust – II. From the ultraviolet to the far-infrared     

Lorenzo Piovan  Rosaria Tantalo  Cesare Chiosi 《Monthly notices of the Royal Astronomical Society》2006,370(3):1454-1478

  相似文献   

A lacustrine record of early Holocene watershed events and vegetation history,Corvara in Badia,Dolomites (Italy)     

Lisa Borgatti  Cesare Ravazzi  Marta Donegana  Alessandro Corsini  Mauro Marchetti  Mauro Soldati 《第四纪科学杂志》2007,22(2):173-189

The early–middle Holocene lacustrine succession of Corvara in Badia (Italian Dolomites, 1521 m a.s.l.) records landslides and other watershed events before the onset of human pressure. The sensitivity of this archive to relate climate change, watershed processes and vegetation dynamics in the catchment has been explored through a stratigraphic study, including the analysis of sedimentological features, magnetic properties, palaeobotanical records and radiocarbon dating. A palaeolake existed between 10.1 k and 7 k cal. yr BP and was surrounded by a dense conifer forest. Long‐term forest dynamics driven by ecological processes and by climatic conditions favourable to upward forest expansion is recorded throughout the pollen record. Within the fine clastic sedimentation, distinct layers enriched in organic debris of terrestrial origin have been attributed to instant events produced by mass movements. Their age fits the chronology of large landslide events already known in the catchment, enabling correlation of the field evidence of landslides with the lacustrine record. Landslide frequency is controlled by geological and structural factors, but it is significantly modulated by the centennial–millennial climatic phases that characterise the Holocene in the Alps. The taphonomical properties of pollen and macroremains provided valuable insight on the mechanism of watershed processes. Copyright © 2006 John Wiley & Sons, Ltd.  相似文献   

Digitization and Scientific Exploitation of the Italian and Vatican Astronomical Plate Archives     

Cesare Barbieri  Carlo Blanco  Beatrice Bucciarelli  Regina Coluzzi  Andrea Di Paola  Luciano Lanteri  Gian Luca Li Causi  Ettore Marilli  Piero Massimino  Vincenzo Mezzalira  Stefano Mottola  Roberto Nesci  Alessandro Omizzolo  Fernando Pedichini  Francesca Rampazzi  Corinne Rossi  Ruggero Stagni  Milcho Tsvetkov  Roberto Viotti 《Experimental Astronomy》2003,15(1):29-43

There is a widespread interest to digitize the precious information contained in the astronomical plate archives, both for the preservation of their content and for its fast distribution to all interested researchers in order to achieve their better scientific exploitation. This paper presents the first results of our large-scale project to digitize the archive of plates of the Italian Astronomical Observatories and of the Specola Vaticana. Similar systems, composed by commercial flat-bed retro-illuminated scanners plus dedicated personal computers and acquisition and analysis software, have been installed in all participating Institutes. Ad-hoc codes have been developed to acquire the data, to test the suitability of the machines to our scientific needs, and to reduce the digital data in order to extract the astrometric, photometric and spectroscopic content. Two more elements complete the overall project: the provision of high quality BVRI CCD sequences in selected fields with the Campo Imperatore telescopes, and the distribution of the digitized information to all interested researchers via the Web. The methods we have derived in the course of this project have been already applied successfully to plates taken by other Observatories, for instance at Byurakan and at Hamburg.  相似文献   

The Galileo project     

Cesare Barbieri 《Astrophysics and Space Science》1989,160(1-2):119-122

The Galileo project comprises the design, building, and operation of a 3.5 m Italian telescope the main elements (diameter, mechanical structure, active optics, etc.) of which consist of a duplication of the ESO New Technology Telescope (NTT). Modifications have been introduced in order to allow, beyond thef/11 Nasmyth foci, a prime focusf/2.2 station, a trappedf/6 focus, and a small Cassegrainf/20 facility. Other changes with respect to the NTT have been made to the control and data acquisition system, and to the service building. The telescope could be operational at the end of 1992.Paper presented at the Symposium on the JNLT and Related Engineering Developments, Tokyo, November 29–December 2, 1988.  相似文献   

Stratified dust grains in the interstellar medium – I. An accurate computational method for calculating their optical properties     

Maria Antonia Iatì  Rosalba Saija  Ferdinando Borghese  Paolo Denti  Cesare Cecchi-Pestellini  David A. Williams 《Monthly notices of the Royal Astronomical Society》2008,384(2):591-598

  相似文献