This resource contains seismic recording data acquired by a 24-sensor seismic array installed close to IFG1 piezometer in Ny-Ålesund, Svalbard, in June 2026. The sensors were deployed along a linear array with an interstation spacing of 1 m, resulting in a total array aperture of 23 m. The longitudinal axis of each sensor was oriented towards the N70° direction, which was also the orientation of the array. Active seismic surveys were performed using a 5 kg sledgehammer as the seismic source. The impacts were generated by striking the hammer on a metal plate coupled to the ground surface to ensure efficient energy transfer into the subsurface. Seismic data were recorded at a sampling frequency of 4000 Hz. The seismic recordings are provided as 2-second-long SEG-Y files starting from the shot time. Each file corresponds to the seismic response generated by a single individual shot and contains the data recorded by the seismic array following that source activation. Along with the seismic data, are here provided the kml showing the position of the first and last sensors in the array configuration, a xlsx file providing the correspondence between ID of the shots and respective offset, and a docx file describing the nomenclature of the SEG-Y files.

This dataset comprises measurements from moored multiparametric probe, collected by the Aldo Pontremoli Mooring (MAP), which is managed by the Institute of Polar Sciences of the National Research Council (CNR). The Aldo Pontremoli Mooring (MAP), operated by the Institute of Polar Sciences of the National Research Council (CNR), has been active in the Kongsfjord, located in the Svalbard archipelago, since September, 2020. The instrument collect physical and biogeochemical Essential Ocean Variables, including sea water temperature, conductivity, oxygen, concentration and related salinity and density anomaly. This activity is part of the Svalbard Integrated Arctic Earth Observing System (SIOS), which aims to monitor the impacts of climate change, such as the rapid loss of sea ice cover, the retreat of local glaciers, and the Atlantification of Arctic seas. Time series acquisition is ongoing and will continue, supported by funding from JRA ENI-CNR. The project's goal is to analyse the environmental feeback related to the material released into the marine environment due to permafrost melting. Reactivated permafrost can have significant consequences for both climate and the environment by contributing to the release of greenhouse gases into the atmosphere and pollutants into aquatic ecosystems

This dataset contains leaf stable isotope (\u03b4\u00b9\u00b3C, \u03b4\u00b9\u2075N) and elemental composition (carbon and nitrogen content, C:N ratio) data for two dominant high-arctic dwarf shrubs, Dryas octopetala L. and Salix polaris Wahlenb. Samples were collected repeatedly during the peak of the growing season (July) from 2021 to 2024 at a continuous permafrost site in the Brogger Peninsula, near Ny-Alesund, Svalbard

This dataset comprises measurements from S1 Mooring, which is managed by the Institute of Polar Sciences of the National Research Council (CNR) and National Institute of Oceanography and Applied Geophysics (OGS). The data was gathered on the Fram Strait south of the Spitsbergen in an open-sea area strongly influenced by both the interaction between Atlantic (northward-moving) and Arctic (southward-moving) waters as well as by the presence and winter formation of sea ice and atmospheric forcing. To understand these dynamics, a deep-water oceanographic S1 Mooring was anchored at about 1040 meters depth, since June 2014 and is part of the SIOS-Svalbard Integrated Arctic Earth Observing System, developed to observe the impacts of climate change, including the rapid loss of sea ice cover, the retreat of local glaciers, and the Atlantification of Arctic seas. The CTD sensor mounted at 940 m measures sea-water temperature and salinity. The acquisition of this time series data is still ongoing and will continue, bolstered by the inclusion of this infrastructure within the framework of the Italian PNRR project ITINERIS. This ensures sustained data collection and further enhances our understanding of the observed environmental changes.

Measurement of the water vapour turbulent flux and sublimation process at 15 m above sea level on the CCT.

This dataset compiles measurements of gas exchange and associated microclimatic conditions for two dominant dwarf shrub species (Dryas octopetala and Salix polaris) and bare soil control plots. It is important to note that the presented data do not derive from continuous monitoring (e.g., Eddy Covariance) but consist of point (instantaneous) measurements conducted manually during the peak of the summer growing season (July) between 2021 and 2024.

2025 NAIS at Gruvebadet

This dataset comprises measurements from S1 Mooring, which is managed by the Institute of Polar Sciences of the National Research Council (CNR) and National Institute of Oceanography and Applied Geophysics (OGS). The data was gathered on the Fram Strait south of the Spitsbergen in an open-sea area strongly influenced by both the interaction between Atlantic (northward-moving) and Arctic (southward-moving) waters as well as by the presence and winter formation of sea ice and atmospheric forcing. To understand these dynamics, a deep-water oceanographic S1 Mooring was anchored at about 1040 meters depth, since June 2014 and is part of the SIOS-Svalbard Integrated Arctic Earth Observing System, developed to observe the impacts of climate change, including the rapid loss of sea ice cover, the retreat of local glaciers, and the Atlantification of Arctic seas. The CTD sensor mounted at 820 m measures sea-water temperature and salinity. The acquisition of this time series data is still ongoing and will continue, bolstered by the inclusion of this infrastructure within the framework of the Italian PNRR project ITINERIS. This ensures sustained data collection and further enhances our understanding of the observed environmental changes.

This resource contains seismic recording data acquired by a 24-sensor linear seismic array installed close to IFG1 pieazometer in Ny-Ålesund, Svalbard, in June 2026. The sensors were deployed along a linear array with an interstation spacing of 1 m, resulting in a total array aperture of 23 m. The seismic array acquired ambient seismic noise data for 1h and 45 minutes. Seismic data were recorded at a sampling frequency of 4000 Hz. The seismic recordings are provided as single-components MINISeed files. Along with the seismic data, there is provided the kml showing the position of the first and last sensors in the array configuration

This resource consists in the continuous seismic recording data acquired by 24 seismic sensors installed close to Climate Change Tower at Ny - Alesund in June 2026. The seismic nodes (4.5 Hz NRU - D3 by GTI) acquired continuous ambient seismic noise from 12 June to 15 June, and have been deployed according to a 2D circular seismic array, with three concentric circles characterized by a radius of about 1 m, 3 m and 8 m, respectively. The seismic data (miniseed format) are shared, in daily directories, in a zenodo repository according to an embargo until the end of 2027.