ABSTRACT Following the final phase of Pleistocene volcanism in the Latium region, the main crater... more ABSTRACT Following the final phase of Pleistocene volcanism in the Latium region, the main craters of Albano and Nemi in the Colli Albani volcano started to accommodate a sedimentary sequence in both lakes of variable thickness. In the mid-1990s, an EU-funded interdisciplinary project (PALICLAS) investigated the palaeoenvironmental record of the sedimentary sequences of Lakes Albano and Nemi using a multi-proxy approach. A set of up to 14-m-long cores was recovered from the two maar lakes following a seismic survey. Detailed petrophysical (magnetic), sedimentological and geochemical analyses, combined with a large palaeoecological dataset including algal and bacterial pigments, biological remains such as pollen, diatoms, Cladocera, chir-onomids and ostracods were carried out in three selected sites in Lake Albano and one site in Lake Nemi. A robust chronology was established by integrating accelerator mass spectrometry (AMS) radiocarbon datings, pollen analysis and secular variation record of the magnetic field together with the identification of two tephra layers correlated with the Late Pleistocene Etnean eruption of Bian-cavilla (Y1; 17.2 cal ka BP) and the late Holocene Pomici di Avellino (4.1 cal ka BP). The com-piled results of these investigations provide a detailed chronicle of the response of both lacustrine basins to climate-and anthropogenically triggered environmental changes in central Italy for the past c. 28 cal ka. The Lake Albano record further demonstrate that at least the earliest changes reflect distinct warm/cold cycles that triggered major lake level changes of millennial to centennial duration as a major response of the lacustrine basin to climate forcing. Alternatively, these dramatic lake level variations – also identified during the Holocene – could have been driven by CO 2 injec-tions of possible magmatic origin. However, flickering interannual to interdecadal variations further identified within these cycles can be correlated to oscillations of the North Atlantic (NAO) as observed in Greenland ice cores, marine and other lacustrine records. The latter, thus, would favour the climatic rather than volcanic cause for these changes. The Holocene record in both lakes is characterized by organic-rich sediments with a variable development of lamination. Although human activity in the catchment is evident since the mid-Holocene, the global signal indicates that changes in climatic variables such as wind intensity, precipitation and temperature are the most probable factors producing these environmental changes. The response of both lake systems to probable warm/cold episodes during the late Holocene, however, is difficult to disen-tangle from the often-contemporaneous human impact on their catchments. Maar sediments are ideal for reconstructing environmental changes, because their water level is mostly controlled by atmospheric precipitation in the catchment, which clearly responds to changes in climate. During the last two decades, several research projects have shown the potential of maar lake deposits to obtain detailed reconstruc-tions of natural-and anthropogenically induced changes in the environment (e.g. Mees et al. 1991; Negendank & Zolitschka 1993; Guilizzoni & Oldfield 1996; Siffedine et al. 1996; Battarbee 2000; Bradbury et al. 2004). Maar sediments are commonly varved and thus provide excellent chronologies, while their small catchment areas often amplify their response to changes in the environment that is archived in different proxies. The EU-funded project PALICLAS (Palaeoenvir-onmental Analysis of Italian Crater Lake and Adriatic Sediments) aimed to produce proxy records of past-climate variability that would allow the identification and separation of the human impact often superimposed on the natural
... Author(s): Marchetto, A.; Rogora, M.; Boggero, A.; Musazzi, S.; Lami, A.; Lotter, A.; Tolotti... more ... Author(s): Marchetto, A.; Rogora, M.; Boggero, A.; Musazzi, S.; Lami, A.; Lotter, A.; Tolotti, M.; Thies, H.; Psenner, R.; Massaferro, J.; Barbieri, A. Affiliation FEM: Research and Innovation Centre. ... Citation: Marchetto, A., Rogora, M., Boggero, A., Musazzi, S., Lami, A., Lotter, A., et al. ...
... Riv. CAI, 39: 77-86. Brian, A. 1932. Intorno alla distribuzione geografica di alcuni Diaptomu... more ... Riv. CAI, 39: 77-86. Brian, A. 1932. Intorno alla distribuzione geografica di alcuni Diaptomus nei laghetti dell'Ap-pennino settentrionale. Riv. Geogr. ... Guilizzoni, P., A. Marchetto, A. Lami, NG Cameron, PG Appleby, NL Rose, Ø. A. Schnell, CA Belis, A. Giorgis & L. Guzzi. 1996. ...
Fundamental and Applied Limnology, Advances in Limnology, Dec 23, 2009
Lacul Negru is a remote lake located in the Carpathian Mountains of Romania, within the Retezat N... more Lacul Negru is a remote lake located in the Carpathian Mountains of Romania, within the Retezat National Park. In 2000, four sediment cores were taken from the deep area of the lake for a multi-pollutant, multi-proxy study to determine temporal trends in pollutant inputs and ecological change. One core was radiometrically dated and the other cores correlated to it by lithostratigraphic means. Analyses included persistent organic pollutants (POPs), trace elements, spheroidal carbonaceous particles (SCPs), carbon (C), nitrogen (N) and sulphur (S), pigments, and the preserved ...
In some sectors of the water resources management, the digital revolution process is slowed by so... more In some sectors of the water resources management, the digital revolution process is slowed by some blocking factors such as costs, lack of digital expertise, resistance to change, etc. In addition, in the era of Big Data, many are the sources of information available in this field, but they are often not fully integrated. The adoption of different proprietary solutions to sense, collect and manage data is one of the main problems that hampers the availability of a fully integrated system. In this context, the aim of the project is to verify if a fully open, cost-effective and replicable digital ecosystem for lake monitoring can fill this gap and help the digitalization process using cloud based technology and an Automatic High-Frequency Monitoring System (AHFM) built using open hardware and software components. Once developed, the system is tested and validated in a real case scenario by integrating the historical databases and by checking the performance of the AHFM system. The solution applied the edge computing paradigm in order to move some computational work from server to the edge and fully exploiting the potential offered by low power consuming devices.
ABSTRACT Following the final phase of Pleistocene volcanism in the Latium region, the main crater... more ABSTRACT Following the final phase of Pleistocene volcanism in the Latium region, the main craters of Albano and Nemi in the Colli Albani volcano started to accommodate a sedimentary sequence in both lakes of variable thickness. In the mid-1990s, an EU-funded interdisciplinary project (PALICLAS) investigated the palaeoenvironmental record of the sedimentary sequences of Lakes Albano and Nemi using a multi-proxy approach. A set of up to 14-m-long cores was recovered from the two maar lakes following a seismic survey. Detailed petrophysical (magnetic), sedimentological and geochemical analyses, combined with a large palaeoecological dataset including algal and bacterial pigments, biological remains such as pollen, diatoms, Cladocera, chir-onomids and ostracods were carried out in three selected sites in Lake Albano and one site in Lake Nemi. A robust chronology was established by integrating accelerator mass spectrometry (AMS) radiocarbon datings, pollen analysis and secular variation record of the magnetic field together with the identification of two tephra layers correlated with the Late Pleistocene Etnean eruption of Bian-cavilla (Y1; 17.2 cal ka BP) and the late Holocene Pomici di Avellino (4.1 cal ka BP). The com-piled results of these investigations provide a detailed chronicle of the response of both lacustrine basins to climate-and anthropogenically triggered environmental changes in central Italy for the past c. 28 cal ka. The Lake Albano record further demonstrate that at least the earliest changes reflect distinct warm/cold cycles that triggered major lake level changes of millennial to centennial duration as a major response of the lacustrine basin to climate forcing. Alternatively, these dramatic lake level variations – also identified during the Holocene – could have been driven by CO 2 injec-tions of possible magmatic origin. However, flickering interannual to interdecadal variations further identified within these cycles can be correlated to oscillations of the North Atlantic (NAO) as observed in Greenland ice cores, marine and other lacustrine records. The latter, thus, would favour the climatic rather than volcanic cause for these changes. The Holocene record in both lakes is characterized by organic-rich sediments with a variable development of lamination. Although human activity in the catchment is evident since the mid-Holocene, the global signal indicates that changes in climatic variables such as wind intensity, precipitation and temperature are the most probable factors producing these environmental changes. The response of both lake systems to probable warm/cold episodes during the late Holocene, however, is difficult to disen-tangle from the often-contemporaneous human impact on their catchments. Maar sediments are ideal for reconstructing environmental changes, because their water level is mostly controlled by atmospheric precipitation in the catchment, which clearly responds to changes in climate. During the last two decades, several research projects have shown the potential of maar lake deposits to obtain detailed reconstruc-tions of natural-and anthropogenically induced changes in the environment (e.g. Mees et al. 1991; Negendank & Zolitschka 1993; Guilizzoni & Oldfield 1996; Siffedine et al. 1996; Battarbee 2000; Bradbury et al. 2004). Maar sediments are commonly varved and thus provide excellent chronologies, while their small catchment areas often amplify their response to changes in the environment that is archived in different proxies. The EU-funded project PALICLAS (Palaeoenvir-onmental Analysis of Italian Crater Lake and Adriatic Sediments) aimed to produce proxy records of past-climate variability that would allow the identification and separation of the human impact often superimposed on the natural
... Author(s): Marchetto, A.; Rogora, M.; Boggero, A.; Musazzi, S.; Lami, A.; Lotter, A.; Tolotti... more ... Author(s): Marchetto, A.; Rogora, M.; Boggero, A.; Musazzi, S.; Lami, A.; Lotter, A.; Tolotti, M.; Thies, H.; Psenner, R.; Massaferro, J.; Barbieri, A. Affiliation FEM: Research and Innovation Centre. ... Citation: Marchetto, A., Rogora, M., Boggero, A., Musazzi, S., Lami, A., Lotter, A., et al. ...
... Riv. CAI, 39: 77-86. Brian, A. 1932. Intorno alla distribuzione geografica di alcuni Diaptomu... more ... Riv. CAI, 39: 77-86. Brian, A. 1932. Intorno alla distribuzione geografica di alcuni Diaptomus nei laghetti dell'Ap-pennino settentrionale. Riv. Geogr. ... Guilizzoni, P., A. Marchetto, A. Lami, NG Cameron, PG Appleby, NL Rose, Ø. A. Schnell, CA Belis, A. Giorgis & L. Guzzi. 1996. ...
Fundamental and Applied Limnology, Advances in Limnology, Dec 23, 2009
Lacul Negru is a remote lake located in the Carpathian Mountains of Romania, within the Retezat N... more Lacul Negru is a remote lake located in the Carpathian Mountains of Romania, within the Retezat National Park. In 2000, four sediment cores were taken from the deep area of the lake for a multi-pollutant, multi-proxy study to determine temporal trends in pollutant inputs and ecological change. One core was radiometrically dated and the other cores correlated to it by lithostratigraphic means. Analyses included persistent organic pollutants (POPs), trace elements, spheroidal carbonaceous particles (SCPs), carbon (C), nitrogen (N) and sulphur (S), pigments, and the preserved ...
In some sectors of the water resources management, the digital revolution process is slowed by so... more In some sectors of the water resources management, the digital revolution process is slowed by some blocking factors such as costs, lack of digital expertise, resistance to change, etc. In addition, in the era of Big Data, many are the sources of information available in this field, but they are often not fully integrated. The adoption of different proprietary solutions to sense, collect and manage data is one of the main problems that hampers the availability of a fully integrated system. In this context, the aim of the project is to verify if a fully open, cost-effective and replicable digital ecosystem for lake monitoring can fill this gap and help the digitalization process using cloud based technology and an Automatic High-Frequency Monitoring System (AHFM) built using open hardware and software components. Once developed, the system is tested and validated in a real case scenario by integrating the historical databases and by checking the performance of the AHFM system. The solution applied the edge computing paradigm in order to move some computational work from server to the edge and fully exploiting the potential offered by low power consuming devices.
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