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33 record(s)
 
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    This dataset comprises measurements from moored CTD instruments, collected by the Mooring Dirigibile Italia (MDI), which is managed by the Institute of Polar Sciences of the National Research Council (CNR). The data was gathered at Kongsfjorden, Svalbard Island, since 9 September 2010. This dataset is also 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. Measured properties are: sea-water pressure, subsurface temperature, conductivity, dissolved oxygen in sea-water and turbidity. 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.

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    terrestrial Photography ApplicationS on Snow covEr in Svalbard Project start: 2018-04-15 - end: 2021-12-31 The purpose of this activity is the development of a new snow product focused on the estimation of the fraction of snow cover in selected sites at different spatial resolutions. This dataset will be aimed to support the estimation of cryospheric information using remotely sensed data, with a particular attention to data obtained in the framework of the Copernicus program. The availability of this dataset in a natural laboratory such as Svalbard islands will support the reduction of the gap between remotely sensed data and modeling activities. This added value will be very important considering the higher spatial resolution of the sensors recently deployed. The dataset will be based on re-using data obtained from public repositories such as the digital elevation model of Svalbard, the available webcam imageries in Svalbard and satellite products from Landsat, Sentinel and MODIS missions. All the available data will be integrated in order to estimate the fraction of snow cover, at different spatial resolutions, for each satellite mission. These estimations, computed at different sites in Svalbard islands, will offer the opportunity to better integrate results obtained by remote sensing with modeling and air-snow interactions studies. Particular attention will be devoted to the formalization of agreements with raw-data providers in case of not-public licensing policies.

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    A long-term climate manipulation experiment has been ongoing since 2014 at the REMUS site (Responses of Microbes in Upper Soil Horizons to Environmental Manipulations). Twenty-four open-top chambers (OTCs) were installed to simulate warmer ground temperatures and increased precipitation. To mimic enhanced rainfall, irrigation is applied twice a year, at the end of June and August. The transparent OTCs create an average ground temperature increase of approximately 1°C in the treated plots. The site is located about 11 Km from Ny-Ålesund at Kongsfjordneset (78.96661°N 11.47576°E) on the Brøgger Peninsula. In total, 48 plots with different plant species have been selected for the study. Of these, 24 are equipped with OTCs, while the remaining 24 are irrigated, with half of the irrigated plots also containing OTCs (12 with OTCs, 12 without). The REMUS site is registered on the Research in Svalbard Portal under ID 6921. This site is part of the International Tundra Experiment (ITEX), a global research initiative aimed at understanding the responses of tundra plant species through simple manipulation and transplant experiments conducted across multiple Arctic and alpine sites.

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    Snow Core Data (SnowCorD) Project start: 2021-05-01 - end: 2025-12-31 The estimation of the Fractional Snow-Covered Area in the Brøgger Peninsula ensambling processed imagery located at different sites with different spatial resolutions. This dataset will be aimed to support the estimation of cryospheric information using remotely sensed data. The Ensembled FSCA retrievals are obtained, at the moment, by terrestrial photography applications established at the Amundsen-Nobile Climate Change Tower, at the Zeppelin observatory and at the Gruvebadet Snow Research Site in the Kongsfjorden area.

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    Climate-Cryosphere-Carbon interactions in Kongsfjorden, Svalbard (C3) Use sediment cores as archives of climate-induced destabilizations in the fjord. By targeting well known past climate changes (MWP and LIA) we will understand how the C3 system varied during natural warming and cooling events. Retrieve of two sediment cores in Kongsfjorden, in summer 2017, to encompass the last 1k years.

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    The automated nivological station was installed in November 2020 in a flat area over the tundra about 80 meters far from the Gruvebadet Atmospheric Laboratory and nearby a snow sampling site from where weekly snow samples are collected for chemical analysis. Sensors (NESA LU06) have been calibrated by their companies before installation and are connected to a datalogger for continuous acquisition. For all the parameters, data are logged with 10-minute time resolution and then averaged over 1 hour. This activity is carried out by the Aldo Pontremoli Centre part of the Joint Research Agreement ENI-CNR, in the framework of the SnowCorD project (SIOS Core Data).

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    temperature, electrical conductivity, hydrometric level measured in piezometers located near CCT (Ny-Alesund)

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    terrestrial Photography ApplicationS on Snow covEr in Svalbard: Evolution of the fractional snow cover in the Broggerdalen area using ground-based cameras located at the Climate Change Tower in the Svalbard archipelago. Project Start date: 2018-04-15 End date: 2023-12-31

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    This dataset comprises measurements from a moored CTD instruments, collected by the Krossfjord Italian Mooring (KIM), which is managed by the Institute of Polar Sciences of the National Research Council (CNR). The data was gathered in the Krossfjord, Svalbard Island, since September 2020. This dataset is also 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. Mesured properties: seawater pressure, temperature, conductivity, salinity, density, oxygen concentration. 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.

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    The automated station is operating at the Amundsen-Nobile Climate Change Tower since 2010, which is in a tundra site almost flat, located in the Kolhaugen area. The station is part of a complex infrastructure where multi-disciplinary observations are routinely performed. The instrument used for the meauserements is a PT100 thermocouple. This activity is carried out in the framework of the SnowCorD project (SIOS Core Data).