​Department of Earth and Environmental Sciences – DISAT

This dataset has been used in the manuscript titled “Snow Surface Parameters from PRISMA Data in the Alps and Their Implications for Radiative Forcing” and provides snow property parameters retrieved from PRISMA hyperspectral imagery acquired over Plateau Rosa (Aosta Valley, European Alps) following a Saharan dust deposition event in July 2024. The parameters include mineral dust concentration, snow grain size, broadband albedo, and instantaneous radiative forcing. These were estimated using a supervised learning approach based on the K-Nearest Neighbors (KNN) algorithm, which was applied to match observed spectra with a reference library generated using the BioSNICAR radiative transfer model. The dataset also includes Asymptotic Radiative Transfer (S-ART) model (S-ART) outputs and in situ measurements collected during a dedicated field campaign. These data support the investigation of the effects of light-absorbing impurities on snow radiative properties, contributing to the improvement of climate and hydrological modeling in high-altitude environments.

The Adula unit (Central Alps) exposes high- and ultra-high-pressure (HP-UHP) metamorphic rocks, providing key insights into the subduction and exhumation dynamics of the former distal European margin. In the San Bernardino pass area (Switzerland) it is possible to reconstruct the tectonometamorphic evolution or the Adula unit from HP conditions to exhumation and subsequent shearing during orogen-parallel extension. The P-T-d-t evolution of eclogites and host rocks fhas been determined by thermodynamic modelling and Ar-Ar dating of syntectonic minerals. This dataset contains location and description of studied samples, mineral chemistry data obtaine by electron microprobe analyses and Ar-Ar data on white micas in eclogites and hosting orthogneisses.

Datset used to investigated wolf spatio-temporal behavior within the Ticino Natural Park, an ecological corridor crossing a highly human-modified areas in northern Italy. The dataset contains value of: • Kilometer abundance indices (IKAs) of roe deer (Capreolus capreolus) and wild boar (Sus scrofa); • Tourism events categorized by type and season; • Number of wild boars shot by different hunting control techniques. All data are associated with wolf (Canis lupus) presence/availability sites along standardized routes in the protected area.

This dataset contains the raw data resulting from the quantitative analysis of the benthic foraminifera association and the skeletal assemblage within the lower to middle Eocene carbonate succession exposed at the Island of Pag (Croatia). The aim of this work is to provide the palaeoenvironmental, palaeobathymetric, and stratigraphic reconstructions and clarify the dynamics of the carbonate factories in the Dinaric Foreland Basin. More than 100 samples have been collected within the Foraminiferal Limestone and the overlying Transitional beds units. Quantitative analysis takes into account both large benthic (LBF) and small benthic (SBF) foraminifera. Based on the analysed LBF and nannofossil associations, the Foraminiferal Limestone has been dated to the early Eocene (Ypresian) and the Middle Eocene (late Lutetian/early Bartonian). Thanks to the analysis of the skeletal assemblage and the foraminiferal assemblage, and multivariate statistics, it was possible to identify seven main biofacies within the Foraminiferal Limestone and one biofacies within the Transitional Beds. The porcelaneous and agglutinated benthic foraminifera biofacies (BF1) indicates a well-illuminated, oligotrophic to mesotrophic, shallow-water, lagoonal environment. The hyaline SBF and encrusting benthic foraminifera biofacies (BF2) developed in a shallow water, inner-ramp environment, and is related to a vegetated seafloor. The nummulitid biofacies (BF3) indicates a moderately high energy, shallow water environment, whereas the comminuted bioclasts and nummulitid biofacies (BF4) indicates a low-energy, shallow water environment, both deposited in inner-to-middle ramp settings. The nummulitid and orthophragminid biofacies (BF5) indicates a moderate energy environment, deposited in middle ramp settings. The nummulitid and serpulid biofacies (BF6) consists of transported material from the inner ramp deposited in middle ramps settings. The orthophragminid and nummulitid biofacies (BF7) indicates a below-wave base, outer shelf setting and the planktic foraminifera biofacies (BF8), which is recorded in the Transitional Beds, deposited in hemipelagic environment, indicating the final drowning of the carbonate ramp. Based on the foraminiferal counting, quantitative parameters such as the orthophragminids/nummulitids ratio (O/N), the planktic/benthic foraminifera ratio (P/B), and the hyaline/porcelaneous foraminifera ratio (H/P) were calculated, indicating that the succession formed along a distally steepened ramp profile, with a progressively deepening of the depositional environment. Quantification serves as a crucial instrument for precise and reliable palaeoenvironmental reconstruction, playing a pivotal role in comparing diverse successions.

We propose a low-cost, compact, and portable holographic microscope designed for the characterization of micrometric particles suspended in a liquid. This system is built around a commercial optical microscope by substituting its illumination source (a light-emitting diode) with a collimated laser beam. Similarly, a quartz flow cell replaces the microscope glass slide using 3D-printed custom mounting. With the hardware presented in this paper, the holographic imaging of the electromagnetic fields emitted by the objects that intercept the laser beam achieves a resolution close to that achieved with optical microscopes, but with a much larger depth of field. Once a hologram is recorded, a variety of morphological and optical features, including particle projected section, aspect ratio, and extinction cross-section can be extracted. Additionally, we introduce a remote system control that enables users to process the acquired holograms to a remote computational device. This work encompasses a comprehensive description of the methodology of the image processing in holographic microscopy, and a series of validation measurements conducted using calibrated particles. This technique is suitable for the characterization of airborne particles found in snow, firn and ice; here we report experimental results obtained from Alpine ice cores. We include the 3d printer design files, the Holography tutorial in jupyter, and the files to control remotely the camera, the Pycamera project in python

This is the apatite and zircon (U-Th)/He dataset from the Fitz Roy and Torres del Paine massifs in Southern Patagonia that supports the study in revision: “Geodynamic and climatic forcing on late-Cenozoic exhumation of the Southern Patagonian Andes (Fitz Roy and Torres del Paine massifs)” by Muller, V.A.P. et al., 2023 (preprint DOI: 10.22541/essoar.168332179.93378898/v1). Apatite (U-Th/He) thermochronometry was performed following standard procedures (House et al., 2000) at the ARHDL of University of Arizona (USA) for plutonic samples of Torres del Paine, and at the Berkeley Geochronology Center (USA) for metasedimentary samples of Torres del Paine. Apatite (U-Th/He) thermochronometry of Fitz Roy plutonic samples was performed in the GEOPS Laboratory at the Paris-Saclay University (Orsay, France), following the methods of Gautheron et al., (2021). Zircon (U-Th/He) thermochronometry of Fitz Roy plutonic samples was performed in the UTHHE Laboratory of Dalhousie University (Halifax, Canada) following the methods of Reiners et al. (2004, 2005).

Homology model and Molecular dynamics simulations for the AhR:ARNT:DRE complex in presence or absence of the TCDD ligand

This dataset contains the raw data resulting from the picking of benthic foraminifera within the Pleistocene deposits of the Stirone River (Emilia-Romagna, Italy). The aim of this project is to test foraminifera as Indirect Palaeo-Seagrass Indicators (IPSIs). Foraminiferal analyses, based on these data, focused on two different biofacies: a Thalassinoides biofacies, characterised by an oligotypic assemblage (samples R) and a Pinna biofacies, that shows high biodiversity and represents an infralittoral soft bottom colonised by marine phanerogams (samples S). Several indexes have been calculated using these data, such as the IndexEP, the modified FORAM index (FI’), the “long vs. short life-span index” (ILS), and the K/REXT (keeled/rounded morphotypes). Morphotype-based analysis has been provided, too. Among the tested indexes, the latter (K/REXT) proved to be the most reliable IPSI, considering also the presence of morphotype A*, permanently attached, encrusting foraminifera and the abundance of Rosalinidae.

Related Article: Roberto Della Pergola, Luigi Garlaschelli, Piero Macchi, Irene Facchinetti, Riccardo Ruffo, Stefano Racioppi, Angelo Sironi|2022|Inorg.Chem.|61|9888|doi:10.1021/acs.inorgchem.2c00506

The data file is in .xlsx format, which can be opened in Microsoft Excel or OpenOffice.